Specifications for Customer Electric Service Flipbook PDF

Chapter 1 - Primary Metered Service SP-1099 4 Rev 5/01 General Service Information NYSEG will provide overhead or underg

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Specifications for Customer Electric Service 2.4 kv to 34.5 kv

SP-1099

FORWARD...................................................................................................................... 1 CHAPTER 1 - PRIMARY METERED SERVICE.............................................................. 4 General Service Information......................................................................................... 4 CA-206 ...................................................................................................................... 6 CA-208A .................................................................................................................... 7 Section 1 ......................................................................................................................8 Existing NYSEG Facilities and Interconnect.............................................................. 8 Primary Cable - Requirements and Construction .................................................... 10 Primary Cable Acceptance Form............................................................................. 12 Section 2 .................................................................................................................... 13 CUSTOMER Primary Interface Equipment.............................................................. 13 Group Operated Load Break Switch Requirements ................................................ 16 Typical Pad Mounted Switchgear ............................................................................ 17 Switchgear Minimum Requirements ........................................................................ 18 Typical Switchgear Installation ................................................................................ 21 High Voltage Fuse Requirements............................................................................ 22 CUSTOMER Installed Single Pole Interface Structure ............................................ 23 Group Op Switch Grounding (Option 1)................................................................... 24 Group Op Switch Grounding (Option 2)................................................................... 27 Typical Customer Installed Second Interface Pole.................................................. 29 Section 3 .................................................................................................................... 30 CUSTOMER Installed Primary Overhead or Underground...................................... 30 Underground Cable: ........................................................................................................................................ 30 Overhead Construction:................................................................................................................................... 31

Section 4 .................................................................................................................... 33 CUSTOMER Installed Utilization Equipment ........................................................... 33 Transformer Bumper Protection .............................................................................. 34 Transformer Requirements...................................................................................... 36 Typical Padmounted Transformer Installation ......................................................... 39 CHAPTER 2 - SECONDARY METERED SERVICE ..................................................... 40 General Service Information.................................................................................... 40 CA-206 .................................................................................................................... 42 CA-208A .................................................................................................................. 43 Section 1 .................................................................................................................... 44 Existing NYSEG Facilities and Interconnection ....................................................... 44 Primary Cable - Requirements and Construction .................................................... 46 Primary Cable Acceptance Form................................................................................ 48

Section 2 .................................................................................................................... 49 CUSTOMER Installed Primary Overhead and/or Underground............................... 49 Overhead Construction ................................................................................................................................ 49 Underground Construction .......................................................................................................................... 51 Combination Overhead and Underground ................................................................................................. 52

Typical Customer Installed Riser Pole..................................................................... 53 Section 3 .................................................................................................................... 54 CUSTOMER Installed Utilization Equipment: .......................................................... 54 Flat Pads-Sizing for Three Phase Transformers ..................................................... 55 Flat Pad-Installation For Three Phase Transformers .............................................. 56 Vault Pad Installation For Single Phase Transformers............................................ 57 CHAPTER 3 - PRIMARY METERED SERVICE IN AREAS OF SUB-TRANSMISSION58 General Service Information.................................................................................... 58

Forward This booklet (SP-1099) outlines NYSEG's minimum equipment specifications, and minimum installation requirements for a CUSTOMER constructed primary voltage (2400 Volts to 34500 Volts) distribution line which serves a single CUSTOMER and is located on private property. It does not apply to extensions along or paralleling public roadways, or to taps off transmission lines rated higher than 34500 volts. NYSEG requires the CUSTOMER to acquire and install electric equipment in accordance with this document, the latest editions of the National Electrical Code (ANSI/NFPA 70 or NEC.) and National Electrical Safety Code (ANSI C2 or NESC.), and other applicable governing codes. SP-1099 is a supplement to, but not a substitute for these codes. In case of conflict the National Electric Code will be the ruling code. All installations shall conform to the general information section of NYSEG's tariff schedule PSC-90, NYSEG's "Specifications for Electrical Installations" and Section III of NYSEG's "Electric Service Procedures Manual". CUSTOMERS MUST WORK WITH LOCAL NYSEG ENGINEERING PERSONNEL TO ASSURE THE MOST CURRENT POLICIES ARE FOLLOWED. It is in the best interest of the CUSTOMER and NYSEG to install facilities in such a manner as to provide dependable, safe, and adequate electric service to the CUSTOMER. Cooperation of all parties involved and strict adherence to the requirements in this booklet will expedite service. NYSEG's written agreement is required for any equipment exceptions to SP-1099. Alternate designs of equipment and/or facilities should be submitted to NYSEG engineering for review and acceptance. Provided the governing codes, and minimum electrical requirements stated in this document are adhered to, alternate designs are acceptable. SP-1099 is not intended to provide a final engineering design for CUSTOMER installations. CUSTOMERS receiving secondary metered service will be provided with basic engineering and design services by NYSEG. There may be an additional cost If detailed engineering and/or a bill of materials is required. CUSTOMERS receiving primary metered service shall have the responsibility of engineering their facilities to meet the minimum requirements noted in chapter 1. NYSEG can coordinate this engineering service for a fee. Because of the complexity of primary voltage service and long equipment delivery times, the CUSTOMER is required to furnish NYSEG all pertinent information early in the development of plans for new or increased electric service. THE FOLLOWING INFORMATION SHALL BE PROVIDED IN WRITING TO NYSEG's CUSTOMER SERVICES DEPARTMENT. CUSTOMER DESIGNS MUST BE SUBMITTED TO AND ACCEPTED BY NYSEG BEFORE EQUIPMENT IS ORDERED. •

Site layout and an electrical one line diagram.

SP-1099

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REV 5/01

Forward •

The electrical characteristics (voltage, initial and future connected load, and hours of usage).

•

Any unusual requirements (e.g. welders, x-ray equipment, large motors, etc.)

•

Size and rating of service equipment and facilities to be used.

•

Time schedule for service.

In addition, for primary metered CUSTOMERS, the following is also required: •

Specifications of protective equipment such as the fuse sizes, types, manufacture, and slow or standard speed to be used, etc.

•

Specifications for primary voltage equipment must be submitted to and accepted by NYSEG prior to ordering equipment.

•

For underground construction a ‘Customer Primary Voltage Cable Acceptance Form’ will be required. A cable sample may also be required depending on the cable construction and/or manufacturer.

NYSEG will advise the CUSTOMER on the available electric characteristics (system voltage and available short circuit current at the interface point) and applicable rates to meet the CUSTOMER'S requirements. NYSEG may require the CUSTOMER to design proposed facilities to meet planned NYSEG system modifications. CUSTOMERS installing generators should contact NYSEG for additional requirements and engineering coordination of facilities. Normally only one service will be made available to a CUSTOMER'S premises. CUSTOMER CONSTRUCTED FACILITIES CROSSING PROPERTIES OWNED BY OTHERS, REQUIRE SPECIAL AGREEMENTS (CONTACT NYSEG FOR DETAILS). The specifications and drawings included in this booklet were current design standards at time of issue. Since they are revised on occasion, the CUSTOMER shall contact the Customer Services Department for copies of the latest standards, prior to the design of any facilities. An inspection and subsequent approval is required of CUSTOMER installed facilities by a NYSEG approved inspection authority. A list of approved inspection agencies is available at any NYSEG office. NYSEG reserves the right to inspect the electric facilities prior to connection for conformance to this document. NYSEG's review of the CUSTOMER'S facilities and equipment shall not be construed as endorsing the design, nor as any warranty of safety or durability of the facilities or equipment. NYSEG will assist the CUSTOMER with any problem regarding the interpretation and application of these specifications and installation requirements.

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Forward The CUSTOMER is responsible for all maintenance of CUSTOMER facilities, rights-ofway and tree trimming. It is the CUSTOMER'S responsibility to stock replacement equipment for CUSTOMER facilities. NYSEG may provide emergency repairs to a privately owned line upon request, provided that NYSEG has the capability of so doing, and the CUSTOMER agrees to pay all NYSEG costs. IT IS THE CUSTOMER'S RESPONSIBILITY TO UTILIZE QUALIFIED PERSONS IN THE CONSTRUCTION, OPERATION, AND MAINTENANCE OF THE ELECTRICAL FACILITIES. These qualified persons shall adhere to the applicable employee work rules and safety procedures of the National Electrical Safety Code and the National Electrical Code. Local government ordinances may have additional qualification requirements for these individuals.

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Chapter 1

Chapter 1 - Primary Metered Service General Service Information NYSEG will provide overhead or underground service to the CUSTOMER in accordance with tariff PSC-90, Section III of the "Electric Service Procedures Manual," and this document. CUSTOMERS metered at primary voltage shall furnish, install, own, and maintain (with the exception of the metering equipment) all transformers, switches, structures, primary and secondary protection and other pertinent equipment, beyond the service span. The service span is defined as the final span of conductor and accessories necessary to connect NYSEG's existing system to the CUSTOMER'S facility. The service span and metering equipment will be supplied, installed, and maintained as per the "Electric Service and Procedures Manual" Section III. It is recommended CUSTOMERS stock replacement equipment and materials in case of failure. All CUSTOMER circuit and equipment grounds shall conform to this document, the manufacturer recommendations, and the National Electric Code article 250. For CUSTOMER built lines NYSEG will require the CUSTOMER to sign a memorandum of customer ownership of facilities. Use form CA-206 for overhead facilities (on page 6) or CA-208A for underground facilities (on page 7). These stipulate that: •

The CUSTOMER owns and is responsible for line right-of-way maintenance, so the line remains in a safe condition.

•

The CUSTOMER will be responsible for maintaining an adequate voltage level to his facility, given an adequate voltage level at the point of interconnection.

The following chapter is divided into four sections (see following page). Each section contains the appropriate information and specifications to construct that portion of the service.

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Overhead Primary NYSEG Installed Metering

Customer installed isolation switch Customer installed Protection

NOTE: Customers may construct overhead or underground facilities beyond the customer installed protection at the customers discretion

SECTION 1 Existing NYSEG Facilities and Primary Interconnect

SECTION 2 Customer Installed, Owned, and Maintained Interface Equipment and NYSEG Installed, Owned, and Maintained Metering Equipment.

SECTION 4 Customer Installed, Owned, and Maintained Transformer

SECTION 3 Customer Installed, Owned, and Maintained Primary Overhead or Underground

Service Span

Switchgear and service span installed as per the 'Electric Service and Procedures Manual' section 3

Customer Installed Switchgear With NYSEG Installed Metering

Underground Primary

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MEMORANDUM OF CUSTOMER OWNERSHIP OF ELECTRIC SERVICE LINE EXTENSION

Date _____________________

It is understood the electric service line connected to pole #_________ of line #_______ in the (town, village) of _______________________, consisting of _______ poles and facilities approximately __________ feet in length, serving (my, our) premises located at _____________________________, is (my, our) property and the line and right-of-way is to be maintained by (me, us) or (my, our) successors and assigns in a safe condition. Therefore, the operation or failure of said service line will not give rise to any liability on the part of NYSEG, its successors and assigns. If NYSEG's overhead facilities are to be replaced, moved, or relocated for any reason, the cost of relocating (my, our) overhead electric service line is to be borne by (me, us). It is further understood that should emergency repairs of said electric service line be necessary, and NYSEG is subsequently requested to make such repairs, (I, we) agree to pay to NYSEG the cost of repair. Further, (I, we) agree to be responsible for maintaining an adequate voltage level to (my, our) facilities given an adequate voltage level at the point of connection of said facilities to NYSEG's system.

Signed __________________________ Address _________________________ __________________________ Work Order or Service Order No. __________________ CA-206

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MEMORANDUM OF CUSTOMER OWNERSHIP OF UNDERGROUND ELECTRIC SERVICE LINES

Date _____________________

It is understood the underground electric service line connected to location #_________ of line #_______ in the (town, village) of _______________________, serving (my, our) premises located at _____________________________, consisting of facilities approximately __________ feet in length, is (my, our) property and the line and right-ofway is to be maintained by (me, us) or (my, our) heirs, successors and assigns in a safe condition. Therefore, the operation or failure of said service line will not give rise to any liability on the part of NYSEG, its successors and assigns. If NYSEG's underground facilities are to be replaced, moved, or relocated for any reason, the cost of relocating (my, our) underground electric service line is to be borne by (me, us). It is further understood that should emergency repairs of said electric service line be necessary, and NYSEG is subsequently requested to make such repairs, (I, we) agree to pay to NYSEG the cost of repair. Further, (I, we) agree to be responsible for maintaining an adequate voltage level to (my, our) facilities given an adequate voltage level at the point of connection of said facilities to NYSEG's system.

Signed __________________________ Address _________________________ __________________________

Work Order or Service Order No. __________________ CA-208A

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Chapter 1 - Primary Metered Service

Section 1

Existing NYSEG Facilities and Interconnect Three options exist for CUSTOMERS receiving primary service from NYSEG's facilities: a) Overhead from existing NYSEG overhead facilities. b) Underground from existing NYSEG overhead facilities. c) Underground from existing NYSEG underground facilities. NYSEG will determine (through discussions with the CUSTOMER) the point at which the CUSTOMER'S facilities interconnect with NYSEG's facilities. The financial responsibility for road crossing poles, primary interconnect cables or overhead wires, terminations, insulators, etc., will all be per Section III of NYSEG's Electric Service Procedures Manual. In all cases NYSEG will make the final electrical connection from the CUSTOMER'S facilities to NYSEG's facilities. a) For CUSTOMERS extending overhead from NYSEG's overhead facilities, proceed to section 2 page 13 of this document for the installation of the metering and protection/isolation equipment. b) For CUSTOMERS extending underground from existing NYSEG overhead facilities, the CUSTOMER will install a padmounted or freestanding switchgear unit at the location determined in the above discussion. Refer to page 13 of this document for the installation of the interface equipment and page 18 for the switchgear’s minimum requirements. The responsibility for the ‘Service Span’ (including but not limited to all cable, terminations, trenching, and riser materials) between NYSEG’s overhead facilities and the Customer’s switchgear will be determined by Section III of ‘The Electric Service Procedures Manual’. If the Customer will be supplying the cable refer to page 10 of this document for primary cable requirements and page 12 for a primary cable acceptance form. CUSTOMERS supplying unacceptable cable may incur additional charges for NYSEG installed terminations. Warning: If CUSTOMERS are required to install materials on a NYSEG pole, a minimum of ten foot clearance shall be maintained at all times between NYSEG's energized high voltage conductors and equipment, and persons, tools, and materials including the cable being installed. The final connection between NYSEG’s existing overhead facilities and the CUSTOMERS facilities shall be made by NYSEG. c) For CUSTOMERS extending underground from NYSEG's existing underground facilities, the CUSTOMER interface equipment shall be installed at the location determined in the above discussion. See page 13 of this document for interface equipment requirements and page 18 for minimum switchgear requirements. The responsibility for the primary cable and terminations connecting NYSEG’s point of attachment and the CUSTOMER installed interface equipment will be as per SP-1099

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Chapter 1 - Primary Metered Service

Section 1

Section III of the ‘Electric Service and Procedures Manual’. If the Customer will be supplying the cable see page 10 of this document for primary cable requirements and page 12 for the cable acceptance form. NYSEG will make the final electrical connection to NYSEG’s system. If a CUSTOMER supplied cable does not meet NYSEG’s cable requirements, NYSEG may impose an additional charge for NYSEG installed terminations.

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Chapter 1 - Primary Metered Service

Section 1

Primary Cable - Requirements and Construction NOTE:

Only those cables meeting NYSEG current internal cable specification (SP-1294) will be suitable for takeover by NYSEG at a future date. If the CUSTOMER will be retaining ownership of the cable see the minimum requirements below.

The following is NYSEG's minimum requirements for solid dielectric insulated cable suitable for use on CUSTOMER electric power systems at voltages classes of 15kV or 35kV. The CUSTOMER shall supply NYSEG with the selected manufacturer's specifications and receive approval prior to ordering cable. The cables shall be manufactured in accordance with the most recent applicable Insulated Cable Engineers Association (ICEA) and Association of Edison Illuminating Companies (AEIC) standards or be a NYSEG approved equivalent. AEIC shall take preference over ICEA in cases of conflict. The voltage rating of the cable shall be as required by the system with the minimum acceptable voltage class being 15kV. The minimum required conductor size is, #2 AWG concentric or compressed stranded copper or aluminum for 15kV, and 1/0 AWG concentric or compressed stranded copper or aluminum for 35kV. All conductors shall be stranded, annealed copper or "EC" grade aluminum as per current ICEA and National Electric Manufacturers Association (NEMA) standards. The cable shall have an extruded strand shield. The Cable shall have an extruded insulation layer of cross linked polyethylene (XLPE), tree retardant crosslinked polyethylene (TRXLPE), or an ethylene propylene rubber (EPR) based compound suitable for use at conductor temperatures listed in the current AEIC standard CS6. Minimum insulation thickness shall be as follows: Cable Voltage Rating

Minimum Average Thickness

15kV

175 mils

35kV

345 mils

The insulation shall be covered with an extruded insulation shield of a design as dictated by the appropriate current AEIC standard.

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Chapter 1 - Primary Metered Service

Section 1

For 15kV through 35kV cables with extruded insulation shielding over the insulation, the effort required to remove 1/2 inch strips of the insulation shielding, at room temperature, shall not be greater than 10 pounds. The shielding shall be removable without damaging the insulation, leaving no conducting material which cannot be readily removed. For jacketed cables, the jacket shall be strippable using a Ripley Tool Company WS-61 tool or equivalent. NOTE:

NYSEG reserves the right to refuse to energize cable it feels does not meet industry accepted minimum standards of construction, or require an industry accepted high voltage test prior to energizing.

NOTE:

Cables terminated with porcelain potheads will require an industry accepted high voltage test prior to energizing.

Typical cable constructions are described below: a) Two Conductor, Jacketed Cable (NYSEG required design for a NYSEG takeover at a future date) - The cable shall have a concentric neutral of copper wires and shall be covered overall with a PVC (poly vinyl chloride) or PE (polyethylene) jacket. The capacity of the concentric neutral shall be full capacity for conductor sizes up to 1/0 AWG. This cable would be suitable for single phase or three phase applications. For cable used only in three phase applications, neutrals shall be a minimum one-third (1/3) capacity for conductor sizes between 4/0 AWG and 500 KCM, and one-sixth (1/6) capacity for conductors 750 KCM or larger. All cable can be used for both direct buried and conduit installations and do not normally require a separate neutral*. *In joint trench applications with TV, communication, or other facilities, a separate, bare copper neutral, may be required. Refer to section 3 for a discussion of when this is a concern and the NESC (article 354) for the specific requirements. b) Single Conductor, Jacketed Cable - The cable shall have zinc or copper tape, or copper drain wires over the insulation shield and shall be covered overall with a PVC or PE jacket. This cable must be installed in conduit. A separate neutral conductor is required when installing this type of cable. The neutral size shall be equivalent to the concentric neutral size specified in item (a). c) Two Conductor, Unjacketed URD Type Cable - The cable shall have a concentric neutral of copper wires over the insulation shield. The capacity of the neutral shall be full capacity for conductor sizes up to 1/0 AWG (suitable for single phase or three phase application). For three phase applications the neutral shall be one-third (1/3) capacity for conductor sizes between 4/0 AWG and 500 KCM, and one-sixth (1/6) capacity for conductors 750 KCM or larger. This cable is for direct buried installation and does not require a separate neutral.

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CUSTOMER PRIMARY VOLTAGE CABLE ACCEPTANCE FORM The CUSTOMER shall provide the following cable information for NYSEG's review and acceptance. Note: If the CUSTOMER does not obtain NYSEG's approval prior to installing the primary cable, the CUSTOMER may be subject to additional costs for NYSEG to install the cable terminations. CUSTOMER Name __________________________________________________ Location __________________________________________________________ Contractor Name ______________________________ Phone _______________________ Cable Manufacturer __________________________________________________________ Manufacturer Catalog No. __________________________________ Cable Voltage Rating _______________ Conductor Size _______________ Type _________ Type of Insulation ________ Insulation Thickness _______mils Diameter over Ins. _______ Concentric Neutral Size ____________________ Separate Neutral Size __________________ Jacketed __________ Non-Jacketed ____________ Cable Overall Diameter _______________ Note: NYSEG may require a two foot cable sample for review. NYSEG may require manufacturer information verifying that this cable was manufactured in accordance with NYSEG requirements -----------------------------------------------------------------------------------------------------------------NYSEG Engineering has reviewed the above information and has (examined _____), (waived _____ the requirement for) the cable sample. ____________ This cable is acceptable for this CUSTOMER underground service. ____________ This cable is not acceptable, for the following reasons: __________________________________________________________________________ Signed _____________________________ New York State Electric & Gas Corp.

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Chapter 1 - Primary Metered Service

Section 2

CUSTOMER Primary Interface Equipment For the CUSTOMER installed primary interface equipment, the CUSTOMER shall provide: a) A location for NYSEG installed primary metering equipment b) A group operated load interrupting isolation switch to provide for de-energizing and a visible air gap during maintenance of CUSTOMER'S facilities. c) A protective device for the automatic interruption of CUSTOMER faults. a) Primary Metering Equipment - The CUSTOMER will provide a location for the NYSEG installed primary metering equipment either, on the first pole of a CUSTOMER installed overhead system, or in the padmounted/free standing switchgear installed with a CUSTOMER'S total underground system. NYSEG will install their metering equipment only after the CUSTOMER has completed their installation. NYSEG will advise the CUSTOMER as to the space required for the installation of the pole mounted or pad mounted metering equipment. No CUSTOMER controlled switches will be allowed ahead of NYSEG's metering equipment without the explicit approval of the Corporate Metering Department, as special metering equipment will be required. (Exception - in padmounted and free standing switchgear with the incoming switch and meter cubicles secured by a NYSEG lock, the switch will be allowed ahead of the metering equipment). b) Isolation Switch - The CUSTOMER will provide a group operated, load interrupting, isolation switch for the planned interruption of the CUSTOMER'S facilities. The voltage rating of this switch shall not be less than the phase to phase operating voltage of the circuit. This switch will provide a clearly visible air gap when open. The operating handle will be grounded and padlocked by the CUSTOMER at all times with a lock that will accept both a NYSEG and CUSTOMER key. Refer to page 16 for NYSEG's requirements for a pole mounted group operated switch and page 17 for typical pad mounted equipment. NOTE: Manufacturer's specifications for isolation switches shall be submitted to and accepted by NYSEG prior to ordering the equipment. c) Protective Device - The CUSTOMER will provide a device to automatically interrupt faults on the CUSTOMER'S facilities. The voltage rating on this device will not be less than the phase to phase rating of the circuit to be protected. Fuses, reclosers, or circuit breakers are acceptable devices. If the CUSTOMER installs breaker or recloser bypass equipment, additional protection will be required. NYSEG will provide available short circuit current at the interface point, and the maximum allowable fuse rating, or protective setting for a breaker or recloser to coordinate with NYSEG's facilities. Refer to page 22 for the minimum electrical requirements of a standard distribution type High Voltage Fuse and page 18 for typical pad mounted equipment requirements. SP-1099

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Chapter 1 - Primary Metered Service NOTE:

Section 2

Manufacturer's specifications for protective equipment shall be submitted to and Accepted by NYSEG prior to ordering the equipment.

The interface equipment can either be: •

Pole mounted (single or multiple pole) or

•

Pad mounted/free standing

Pole Mounted Interface - For CUSTOMERS providing pole mounted interface equipment, single or multiple pole interfaces can be used. Where the CUSTOMER would normally expect to install multiple poles as part of the CUSTOMER overhead system, a multiple pole interface is recommended. This will simplify the installation, operation, and maintenance of the CUSTOMERS overhead facilities. Refer to section 3, page 31 for the minimum requirements for poles and associated hardware.

A Discussion On Grounding: One of the purposes for grounding equipment is to prevent hazardous voltages from developing in areas accessible to personnel. The level of grounding required to accomplish this function will depend on the amount of current available both during normal and abnormal ( or fault) conditions. Two methods of grounding group operated switch operating handles are shown in the following pages. These methods demonstrate the two extremes to accomplish this protection. Grounding Option one: (this method is ideal for a multiple pole interface and is the least expensive to install and maintain) Option one uses an insulator in the switch operating shaft to effectively isolate the switch handle from the majority of any currents entering the grounding system. The switch frame and lightning arresters are grounded at adjacent poles. The only grounding required for the switch handle is a small ground loop for any induced or leakage currents that may exist. If other equipment is mounted on this pole, it too must be grounded at the adjacent poles. If this is not appropriate or if other conductors must be run down the pole ( such as metering leads or primary cables) this type of grounding will not be sufficient and can not be used. Under these circumstances refer to option two for grounding. Grounding Option two: (this method must be used at a single pole interface) Option two uses a grounding mat to minimize the step and touch voltages that can develop during a fault condition. This ground mat or an approved equivalent should be used any time equipment grounds or other conductors are brought down the pole within the reach of personnel. This mat is designed to safely dissipate the fault currents that can be generated during an equipment failure and keep the voltage between an operators feet, or between the operators hands and feet at a safe level. Single Pole Interface - For a single pole interface structure, the metering, isolation, protection, and primary cable riser equipment (if needed) will be located on one pole. SP-1099

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Chapter 1 - Primary Metered Service

Section 2

Refer to page 23 for a typical single pole interface. All equipment grounding and the switch operating handle grounding must take place at this pole as shown in option two on page 27. Multiple Pole Interface - For a multiple pole interface, the CUSTOMER will provide, as the first pole, a primary meter pole for the NYSEG installed and maintained primary metering equipment. The second pole of a multiple pole interface will contain the CUSTOMER'S isolation switch. The CUSTOMERS protective device (and riser pole if required) can either be installed on this second pole (acceptable) or the next available pole (preferred). If a primary cable riser is installed on the same pole as the group operated switch, the option two grounding method (page 27) will be required for the switch operating handle. Without the cable riser, the switch can be grounded using option one (adjacent pole grounding page 24). Padmounted/Free Standing Interface - The CUSTOMER will furnish and install a pad mounted or free standing switchgear unit with provisions for primary metering. NYSEG will designate the location and space requirements for the metering equipment. This enclosure shall be approved by NYSEG's Corporate Metering Department prior to ordering. Refer to page 17 for typical pad mounted switchgear, page 18 for the minimum electrical requirements and page 21 for a suggested flat pad installation.

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Chapter 1 - Primary Metered Service

Section 2

Group Operated Load Break Switch Requirements SCOPE: Minimum electrical requirements for standard 15kV and 35kV distribution class group operated 600 ampere load break switches for application on the overhead distribution system. For switches with ratings other than 600 amps, contact NYSEG. RATINGS: The following ratings are approved by NYSEG. Other ratings will require explicit approval by NYSEG.

Application

Voltage (kV)

Current (Amp)

BIL (kV)

15kV line to line & below

15 kV

600.00

110.00

19.9/34.5kV

600.00

200.00

35kV line to line

STANDARDS: The group operated load break switches shall be manufactured in accordance with all applicable ANSI and NEMA standards. INTERRUPTERS: The switch interrupting device shall be capable of interrupting distribution loads described above. Typical interrupting designs are internal de-ionizing gas quenching devices or external rapid separation devices. CONSTRUCTION: An insulator shall be placed in the switch operating shaft above the operating handle and below the system neutral position (*not required if the switch will be grounded using the option two grounding method as shown on page 27). It is recommended that pre-assembled and pre-adjusted switches mounted on steel or aluminum crossarms or cluster mount be utilized. It is also recommended that 2 hole or 4 hole NEMA terminal pads be utilized to aid in attachment to NYSEG's system. See NYSEG Specification SP-1467 for NYSE's preferred design on group operated loadbreak switches. *An in shaft insulator had previously been required by NYSEG for all distribution type pole mounted switches. While this is no longer a requirement when using the option 2 grounding method, an insulator can still be installed without compromising safety.

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Section 2

Typical Pad Mounted Switchgear

Primary Switch/ Metering Enclosure

46"

Meter Cabinet

h itc w S

M Cu eter bic ing al

184"

Load Circuits Number as Required

64" 120"

44"

Padmounted Switchgear

Freestanding Switchgear

- Above dimensions are based on 15kv units and are intended for comparison only - Concrete vault or pad furnished and installed by customer - Enclosure to be mounted flush with the concrete pad - Incoming switch cubical door and metering cubical door to be locked with NYSEG padlocks - Incoming switch handle to be padlocked by a NYSEG lock that will accept both a customer and a NYSEG key - all load circuit switch handles and doors to be locked with a customers padlock - 'Danger High Voltage' and other required signs to be furnished and installed by the manufacturer Typical one line diagram ITEMS D C C

F

F

F

C

B E A H

G H

H

G H

A - Incoming Underground Circuit B - Lightning Arrester Protection C - Loadbreak Switch D - Current Metering Transformer E - Potential Metering Transformer F - Fuses G - Outgoing Underground Circuits H - Grounding Provision

NOTE: Any equipment electrically connected before the incoming switch SHALL be mounted in that switch compartment (such as the lightning arresters shown above). This is to avoid having energized equipment in compartments that are expected to be deenergized when the main switch is open.

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Chapter 1 - Primary Metered Service

Section 2

REQUIREMENTS FOR CUSTOMER OWNED 15kV AND 35kV DISTRIBUTION SWITCHGEAR The following applies to CUSTOMER owned 15kV and 35kV switchgear with a maximum continuous current rating of 200/600 Amps. Minimum 15kV class equipment shall be used for all voltage applications up to 15kV rating. For switchgear rated over 600 Amps, contact NYSEG's Distribution Engineering Department. While NYSEG generally utilizes air insulated switchgear, the CUSTOMER has the option of air, gas, liquid, or vacuum insulated, live front or dead front units provided the unit meets the following minimum electrical requirements and have been reviewed and approved by NYSEG engineering prior to ordering. a) General Requirements The switchgear and accessories shall conform to the latest issues of ANSI Standards C37.20, C37.35, C37.46, and NEMA Standard SG5, and any other applicable standards of ANSI, NEMA, and OSHA. In case of conflict ANSI takes precedence over NEMA. The switchgear and any power fuses, shall be in compliance with Article 490 of the current National Electrical Code. b) Ratings The interrupter switch ratings shall be as follows: 15 kV Class

35kV Class

Rated maximum design voltage

15.5kV

38 kV

Rated minimum impulse withstand (BIL)

95 kV

150kV

200 or 600 Amps

200 or 600 Amps

Rated magnetizing interrupting current 200 Amp class equipment

7 Amps

7 Amps

600 Amp class equipment

21 Amps

21 Amps

Rated cable charging current

4 Amps

10 Amps

Rated 3-second current (SYM)

10000 Amps

10000 Amps

Rated momentary and close & latch current (ASYM)

16000 Amps

16000 Amps

400 MVA

1000 MVA

Rated continuous and loop switching

MVA (ASYM)

SP-1099

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Chapter 1 - Primary Metered Service

Section 2

c) Interrupter Switches The interrupting switch operating handle shall be self-latching and have provisions for padlocking in both the open and closed positions. Livefront switchgear shall have the handle attached to prevent removal from the site. Switchgear shall have the compartment doors interlocked with the interrupter switch such that the door cannot be opened while the switch is closed and the switch cannot be closed while the door is open. It is recommended that the main to hinge contacts of the interrupter switches should be silver to silver. The arcing contact of the interrupting units should be silver-tungsten tipped. d) Insulators It is recommended for air insulated switches, fuse mounting insulators and main bus support insulators be skirted. They shall be NEMA BIL rated class A-20 or B20. e) Cable Terminations Livefront - Cable termination points shall consist of 2 hole NEMA pads with adequate clearance for terminating MV shielded cables. Deadfront - NYSEG recommends that each bushing or bushing well be provided with a parking stand bracket located immediately adjacent to the bushing or bushing well. The parking stand bracket should accommodate standard feed-thru and standoff insulators, and other similar accessories. Adequate compartment space should be provided for the installation and operation of all connections and accessories. f) Lightning Arresters 15kV class livefront or deadfront switchgear should have lightning arresters in the bays. 35kV class switchgear shall have lightning arresters in the bays. Mounting provisions and adequate compartment clearances are to be provided by the manufacturer for the type of lightning arrester specified by the CUSTOMER. g) Grounding Provisions The ground bus shall maintain electrical continuity throughout the integrated switchgear assembly. A ground-connection pad shall be provided in each termination compartment of the switchgear and a grounding stirrup on the incoming switch.

SP-1099

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Chapter 1 - Primary Metered Service

Section 2

h) Metering There shall be provision for NYSEG furnished metering equipment on the load side of the incoming switch. Adequate space and mounting provisions for metering potential transformers and current transformers shall be provided. Listed below are the surface-to-surface or edge-to-edge electrical clearances for use in determining space requirements for metering transformers. It is assumed that all insulators are skirted and barrier materials are NEMA GP-03 or equivalent. Voltage Class

Phase to Phase w/o Barriers

Phase to Phase w/ Barriers

Phase to Ground w/o Barriers

Phase to Ground w/ Barriers

Phase to Barrier Vertical

Phase to Barrier Horizontal

Phase to Ground Insulators

15kV

9"

6"

6.5"

5.5"

1"

4"

6"

35kV

13.5"

9.5"

10.5"

8.5"

2"

8"

12"

NOTE:

Contact NYSEG's Corporate Metering Department, before ordering switchgear, to obtain dimensions and mounting requirements for these transformers.

i) Enclosure Construction Where the switchgear will be installed on a vault or manhole, NYSEG recommends the installation of base barriers to reduce contamination and condensation. j) Compliance Prior to ordering equipment, the CUSTOMER shall furnish for review by NYSEG, two (2) copies of the switchgear design, showing all applicable information required such as: Type of construction and interlock system, connection, outline and component drawings. The outline drawings shall show all terminal locations, lightning arrester locations, and base detail for design of the foundation. The manufacturer should furnish installation, operating and maintenance instructions to the CUSTOMER. See NYSEG Specification SP-1382 for NYSEG's preferred 15kV switchgear design.

SP-1099

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Chapter 1 - Primary Metered Service

Section 2

Typical Switchgear Installation Flat-pad will be sized to meet requirements of switchgear.

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

21

Rev 5/01

Chapter 1 - Primary Metered Service

Section 2

High Voltage Fuse Requirements SCOPE: Minimum electrical requirements for standard distribution class open type high voltage fusing for application on the overhead distribution system. Application 15 kV line-to-line and below 35kV line-to-line

Rating (kV)

BIL (kV)

15/27* (see below)

125

38** (see below)

150

* To achieve the 125kV BIL rating may require a 15 or 27kV rated fuse unit depending on the manufacturer and fuse size. ** 38kV is the standard rating for a fuse unit used on the 35kV system. STANDARDS: The fuse and fuse holder shall be manufactured in accordance with current ANSI Standards C37.40, C37.41 and C37.42; and all current applicable NEMA standards. BODY: It is recommended that each outdoor 15 and 35 kV and each indoor 15 kV fuse be equipped with hooks to accommodate a portable loadbreak tool. See NYSEG specification SP-1566 for NYSEG's preferred design on 15kV fuses. Contact NYSEG for available short circuit current and to allow coordination of protective equipment with NYSEG's facilities. It is the CUSTOMER'S responsibility to stock replacement fuses for their system.

SP-1099

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Chapter 1 - Primary Metered Service

Section 2

CUSTOMER Installed Single Pole Interface Structure This is a generic drawing to provide basic design and minimum clearence information. For specific design information refer to NYSEG underground standard section 2 page 4.9

24" @15kV 48" @35kV

3' @ 15kV 4' @ 35kV

44"

NYSEG Supplied and Installed Metering Transformers

Customer Installed Group OP Switch

See note below

Customer Installed Protective Device

3' minimum @ 15kV 4' minimum @ 35kV

Customer Installed Terminations

Do not allow terminations to hang vertically under fuses or terminations will be damaged or destroyed during fuse operations.

NYSEG Installed Neutral If Required

Note: For this switch design maintain 3' at 15kV and 4' at 35kV. For alternate switch designs maintain the following minimum clearances between the metering cluster and the highest energized component of the switch (open or closed). 22" @ 15kV, 30" @ 35kV

Customer Installed Conduit Riser

NYSEG Installed Meter Pan

Group OP Switch Operating Handle Customer to Ground Handle to Ground Mat

Vent Coupler (if needed) Ground Line Customer Installed Ground Mat

SP-1099

23

Rev 5/01

Chapter 1 - Primary Metered Service

Section 2

Group Op Switch Grounding (Option 1)

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

24

Rev 5/01

Chapter 1 - Primary Metered Service

Section 2

Group Op Switch Grounding (Option 1)

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

25

Rev 5/01

Chapter 1 - Primary Metered Service

Section 2

Group Op Switch Grounding (Option 1)

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

26

Rev 5/01

Chapter 1 - Primary Metered Service

Section 2

Group Op Switch Grounding (Option 2)

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

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Rev 5/01

Chapter 1 - Primary Metered Service

Section 2

Group Op Switch Grounding (Option 2) Alternate mat designs will be allowed after review and acceptance by NYSEG.

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

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Chapter 1 - Primary Metered Service

Section 2

Customer's second pole of a two pole interface 5" 53" @35kV 29" @15kV

65" ( see note below )

NOTE The Customers protection equipment should be moved to the next available pole to simplify the installation

42" Neutral Location ( if required )

Overhead to Overhead For alternate switch designs maintain the following minimum clearances between the overhead conductors and the highest energized component of the switch (open or closed) 22" @ 15kV 30" @ 35kV

Overhead to Underground

48"

Customer Installed Protective Device 41" @ 15kV

While this riser design is acceptable it does require a taller pole than NYSEG's current design. Refer

81" @ 35kV

to the drawing for the single pole interface or NYSEG's distribution standards for a design mounting the fuse and terminations on the switch frame.

36" @ 15kV 48" @ 35kV

Customer Installed Conduit Riser Single Conduit Only

NOTE: The Customer installed riser can be placed at or beyond this interface pole at the Customer's discretion

Group OP Switch Operating Handle

Ground Line

Vent Coupler (if needed)

Customer Installed Ground Mat

SP-1099

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Chapter 1 - Primary Metered Service

Section 3

CUSTOMER Installed Primary Overhead or Underground At the CUSTOMER'S discretion, a primary metered CUSTOMER can extend the primary system from the CUSTOMER'S protective device to the utilization equipment using either primary underground cable or pole mounted overhead conductors. Underground Cable: NOTE: In accordance with industrial code #53, the CUSTOMER shall notify NYSEG and other utilities prior to digging. CUSTOMERS who will be installing the primary cable in a common trench with telephone or cable TV cables (commonly referred to as joint trench) should adhere to the requirements of the NESC article 354. To paraphrase, if bare concentric neutral or semiconducting jacketed cables are direct buried, they can be installed in the trench with no intentional separation from the other facilities (random lay). If the primary cable is installed in conduit, or an insulating jacket is used, the NESC may require either a one foot separation between the primary cable and the other facilities, or the addition of a bare grounding conductor adjacent to the primary cable. Contact NYSEG for additional details prior to installing cable under these circumstances. The CUSTOMER may choose from either a direct buried or conduit system using a shielded, solid dielectric insulated, high voltage cable (refer to page 10 for cable requirements). The CUSTOMER has complete responsibility for the installation and termination of this cable. Any cable risers installed in this portion of the installation are also the CUSTOMER'S complete responsibility. The voltage class of the cable shall be in accordance with the operating voltage of the area to be served with 15kV being the minimum acceptable. In those area's designated for future conversion to a higher voltage, NYSEG may have additional requirements. For direct buried primary cable installations, the minimum depth of burial shall be 30 inches for 15,000 volt cable and 36 inches for 35,000 volt cable. Depth of burial may be reduced as per the National Electric Code article 300-50. The cable shall be protected above and below with back-fill free from stones or other material that will damage the cable. The remainder of the trench will also be back-filled with select fill. The ends of all CUSTOMER installed cable shall be sealed by the CUSTOMER to prevent contamination of the cable with dirt or moisture. NYSEG reserves the right to inspect a CUSTOMER'S primary cable installation prior to back-filling. Where a CUSTOMER'S cable may be used to serve additional future CUSTOMERS, NYSEG may impose more stringent design and equipment requirements. NOTE:

SP-1099

For three phase underground installations connected to transformers, ferroresonance overvoltages can be a concern. Consult with NYSEG to determine if the particulars of your installation are susceptible to ferroresonance. Refer to page 36 for an explanation of ferroresonance. 30

Rev 5/01

Chapter 1 - Primary Metered Service

Section 3

Overhead Construction: Customer facilities shall be designed to the NATIONAL ELECTRICAL SAFETY CODE (NESC) requirements. Grade of construction shall be a minimum NESC grade C. All material and equipment used by the CUSTOMER shall be of good quality and new condition. The following materials are required for the meter structure and are recommended for construction elsewhere: NOTE:

Treated lumber contains pesticides to protect it from insect attack and decay and requires the use of special handling and proper disposal methods. The CUSTOMER is advised to follow the recommendations in the manufacturer's Consumer Information Sheets supplied with these products.

a) Poles: Meter pole is to be a new southern yellow pine pole or equivalent in accordance with ANSI Spec. 05.1 latest edition and is to be full length pentachlorophenol, CCA, or creosote treated in accordance with section C4 of American Wood Preserver's Association Standards. Minimum length and class is to be one of the following: 40' and 45' Class 4, 50' Class 3, 55' Class 2. Pole setting depth is generally 2 feet plus 10% of pole length. NYSEG will specify the size of the meter pole and setting depth based on field conditions. b) Framing Materials: The meter pole is to be framed with Fiberglass deadend arms or crossarms of southern yellow pine, Douglas fir or an equivalent. Wood crossarms are to be pressure treated with pentachlorophenol or an equivalent in accordance with section C25 of the American Wood Preservers' Association Standards. Minimum arm size is 3.5" x 4.5" x 8'. When crossarms are used, they shall be braced. Wood braces shall have a minimum cross section of 13/16" x 1 3/4" and are to be pressure treated with pentachlorophenol or an equivalent. All framing material shall be designed to the National Electrical Safety Code to a MINIMUM of Grade C Construction. c) Insulation Levels: Insulation levels shall be in accordance with the operating voltage, with 15kV class the minimum acceptable. If the line is constructed in an area designated for future 34.5 kV operation, NYSEG may require 34.5 kV insulation for primaries. For single phase lines operating at delta voltages, NYSEG may have additional requirements, if a conversion to grounded wye is planned in the future. Insulation design and electrical clearances shall conform to the National Electrical Safety Code. d) Line Conductors, Ground Wire and Connectors: Minimum size line conductor is #2 and is to be in accordance with applicable ASTM standards. The conductor and connector systems shall be designed to meet the National Electrical Safety Code Grade C construction. SP-1099

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Chapter 1 - Primary Metered Service

Section 3

Recommended line conductor types are ACSR, AAAC, copper or copperweld. Conductor connectors should meet ANSI specifications for Class A connections. Only connectors designed for aluminum shall be used on aluminum conductors. Minimum size ground wire is to be #4 bare copper, solid or stranded, and soft drawn. Ground wire is to be covered with plastic molding as required by the National Electric Safety Code. Structure and equipment grounding shall meet the requirements of the National Electrical Code. Ground wire connectors shall be either compression, fired-on or bolted copper vise type. e) Anchor Systems: The anchor and guying system shall meet the minimum of Grade C construction of the National Electrical Safety Code. Guy wire shall be a minimum 3/8" on dead end structures and 9/32" on angle structures, extra high strength steel, with a galvanized class B coating per ASTM A-475. All guy hardware shall have a minimum 15,000 lb. rating and be hot dipped galvanized. Anchors shall be either, crossplate steel with a minimum cross section of 200 square inches or, power installed screw anchor with a minimum 8" diameter helix 7000 ft.-lb. torque rated. Anchor rods shall have a minimum diameter of 3/4 inch. The number of anchors, and the length of the anchor rod, shall be as needed to achieve the required holding strength for the specific installation. All anchor equipment shall be galvanized in accordance with ANSI Specification C135.2, except the helix of screw anchors and crossplates, which may be either painted or bituminous coated.

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Chapter 1 - Primary Metered Service

Section 4

CUSTOMER Installed Utilization Equipment A primary metered CUSTOMER may choose from any of the following transformer installations. •

Padmounted single or three phase units.

•

Station mounted single or three phase power units (enclosed by fence).

•

Pole mounted single phase units. (For single or three phase service)

•

*Indoor single or three phase units.

NOTE:

* NYSEG does not recommend transformer vaults, however, if the CUSTOMER elects this construction, the vault shall be constructed and ventilated in accordance with the National Electric Code article 450.

Transformers shall be located and physically protected as required by article 450 of the National Electric Code. The transformer should be located away from vehicular traffic or should be suitably guarded from damage. Refer to pages 34 and 35 for typical bumper protectors. Transformers shall be installed to minimize fire hazards as per National Electric Code articles 450-21 through 450-27. Each transformer shall have over current protection as required by article 450-3 of the National Electric Code. For 3 phase transformer installations the voltage rating on these protective devices shall be the full line to line rating of the system. Each transformer shall be grounded as per the National Electric Code. Each transformer shall be properly protected against unauthorized access, and shall be designed and installed to meet the requirements of section 38 of the National Electric Safety Code. For three phase transformers which are, or will be, connected for wye-wye operation, a four or five legged core or shell form construction transformer is required to avoid excessive tank heating. Refer to pages 36 - 38 for the electrical requirements for pad mounted and pole mounted transformers and page 39 for a suggested pad design.

SP-1099

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Chapter 1 - Primary Metered Service

Section 4

Transformer Bumper Protection NYSEG DISTRIBUTION STANDARDS (Underground)

SECTION 9 - TRANSFORMERS

D E T A IL O F B U M P E R P R O T E C T IO N

B U M P E R P R O T E C T IO N S IS S UE NO.

1

DAT E :

F E BR UAR Y 1993

DR . M JU

C K D.

R JN

APPR . JAS

1 2 .1

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

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Chapter 1 - Primary Metered Service

Section 4

Transformer Bumper Protection

NYSEG DISTRIBUTION STANDARDS (Underground)

SECTION 9 - TRANSFORMERS

DETAIL OF BUMPER PROTECTION

BUMPER PROTECTIONS ISSUE NO. 2 DATE: FEBRUARY 1993 DR. M JU CKD. RJN APPR. JAS

12.2

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

SP-1099

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Chapter 1 - Primary Metered Service

Section 4

Transformer Requirements Voltage Ratings: The high voltage winding must conform to NYSEG's system voltages available in the CUSTOMER'S area and should be one of the following: 2400/4160Y

4800/8320Y/ x 7620/13200Y

2400/4160Y x 7200/12470Y

12470 grdY/7200

2400/4160Y x 7620/13200Y

13200 grdY/7620

4800/8320Y

34500 grdY/19920

4800/8320Y x 7200/12470Y

CAUTION: Ferroresonance is a prolonged overvoltage condition that can damage transformers, arresters, cable, and customer equipment. It can occur when a capacitive reactance (typically a primary underground cable) and inductive reactance (transformer) are in series and their values are in certain proportions. A typical example is a three phase padmount transformer fed by an underground cable from a wye-primary system with one or two phases of the supply circuit open and no load on the transformer Situations most prone to cause ferroresonance are: •

Smaller sized transformers (less than 300 KVA are most susceptible).

•

Low core-loss design transformers.

•

Delta connected primary on the transformer.

•

Single-phase overcurrent protection (e.g., fusegear).

•

No-load on the transformer secondary.

•

Single-phase switching on three-phase circuits.

•

Primary systems operating at voltages greater than 5 kV.

•

Primary supplied from an underground cable as opposed to overhead conductor.

If ferroresonance does occur it causes higher than normal voltage across the primary and secondary of the transformer. Both the distribution system (transformers, arresters, fuses, cable, etc.) and customer equipment will be subject to this overvoltage as long as the ferroresonance condition exists. Although it cannot be entirely eliminated, steps can be taken to minimize ferroresonance by avoiding the situations listed above. Contact NYSEG regarding any primary systems utilizing insulated cable and pad mounted transformers for an assessment of ferroresonance risk. To calculate the expected level of ferroresonance, NYSEG will need to know the primary cable length, conductor size, voltage, and manufacturer as well as the transformer size, voltage and SP-1099

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Chapter 1 - Primary Metered Service

Section 4

connections. If available the transformer excitation current and core loss will allow a more accurate calculation. Connections: NYSEG recommends the following transformer connections on primary systems. While all are acceptable to NYSEG, some may have characteristics not desirable to the CUSTOMER, for example, the presence or absence of the capability of providing secondary ground fault current. NOTE:

Open Wye and Open Delta configurations are not applicable for three phase padmounted units.

System Voltage

Delta Primary Systems 2400 Delta, 4800 Delta 7200 Delta

Wye Primary Systems 4160 Wye, 8320 Wye 12470 Wye, 13200 Wye

Do to a higher susceptibility to ferroresonance overvoltages, (see caution previous page) these transformer connections should be avoided when using padmounted transformers. Underground installations utilizing these transformer connections will require explicit acceptance by NYSEG.

Wye Primary Systems 34500 Wye

Primary Connection

Secondary Connection

Notes

Delta Delta Delta Open Delta

Grounded Wye Delta Ungrounded Wye Open Delta

a a a,c,d a,b

Grounded Wye Grounded Wye

Grounded Wye Ungrounded Wye

a,e a,d,e

Ungrounded Wye Delta Delta Delta Open Wye

Delta Grounded Wye Delta Ungrounded Wye Open Delta

a,e a,c,e a,c,e a,c,d,e a,b,e

Grounded Wye Grounded Wye Open Wye

Grounded Wye Ungrounded Wye Open Delta

e d,e b,e

Notes: a) CUSTOMER may be required to purchase a transformer with a dual ratio primary rating. Contact NYSEG for details.

SP-1099

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Chapter 1 - Primary Metered Service

Section 4

b) This is an unbalanced transformer connection which could result in dissimilar secondary voltages and attendant utilization equipment problems. c) Acceptable, but not a standard NYSEG connection. d) Not applicable for 208 volt secondary service per National Electrical Code. e) Other connections may be required if CUSTOMER has on-site generation paralleled with NYSEG. Consult NYSEG for details. STANDARDS: The transformer shall be manufactured in accordance with the current ANSI Standards C57.12.00, C57.12.00A and B, C57.12.21, C57.12.22 , C57.12.25 and C57.12.26; NEC and all current applicable NEMA standards. The BIL for the primary winding shall be 95kV for 15kV class transformers and 150kV for 35kV class transformers. VOLTAGE RATINGS: The high voltage windings shall conform to NYSEG's system voltage available in the CUSTOMER'S operating area. FOR PAD MOUNTED TRANSFORMERS THE FOLLOWING WILL ALSO APPLY: HIGH VOLTAGE PROTECTIVE FUSING: For 1 phase transformers with high voltage windings of 12470 GrdY/7200V and 13200V GrdY/7620V, NYSEG recommends that a bayonet fuseholder without an isolation link be used in series with an oil immersed 8.3 kV rated current limiting fuse. For 1 phase transformers with a high voltage winding of 4800V delta, NYSEG recommends that two bayonet fuseholders with isolation link attachments be used. Consult with NYSEG for recommended fusing on other transformers. COMPARTMENT: The transformer door shall be of a tamperproof design, shall be bolted with a recessed penta head bolt and shall have provisions for padlocking. On three phase transformers access to the primary compartment shall be accomplished only after the door to the secondary compartment has been opened. LIGHTNING ARRESTERS: Provisions for mounting lightning arresters should be supplied on live front transformers. Additional bushing wells are recommended on dead front transformers to accommodate shielded arrester applications. CONNECTIONS: An externally removable H0 and X0 is recommended to aid in transformer testing. NOTE:

SP-1099

For three phase transformers which are, or will be, connected for wyewye operation, a four or five legged core or shell form construction transformer is required to avoid excessive tank heating

38

Rev 5/01

Chapter 1 - Primary Metered Service

Section 4

Typical Padmounted Transformer Installation NYSEG SECTION 7 - MANHOLES, VAULTS & PADS

DISTRIBUTION STANDARDS (Underground)

INSTALLATION FOR 3∅ ∅ TRANSFORMERS WITH SECONDARY CABLE BOX

FLAT PADS ISSUE NO. 1 DATE: NOVEMBER 1975 DR. DFR CKD. JFC APPR. LLB 3.3

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book

SP-1099

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Rev 5/01

Chapter 2 .

Chapter 2 - Secondary Metered Service General Service Information NYSEG will provide overhead or underground service to the CUSTOMER in accordance with Tariff PSC-90, section III of the "Electric Service Procedures Manual", NYSEG's "Specifications for Electric Installations" and this document. NOTE:

For CUSTOMERS requiring up to and including a 600 volt service extension, this document does not apply. Those CUSTOMERS should refer directly to NYSEG's "Specifications for Electric Installations."

NYSEG will provide basic engineering service for CUSTOMER built lines including; •

Voltage information

•

Point of interconnection

•

Size, location, and guying requirements of interface and transformer poles

•

Size and location of transformer pad

•

A rough layout drawing

•

Any construction standards requested

If the CUSTOMER requires detailed engineering including a bill of materials, a fee will be charged. CUSTOMER LINES CROSSING THE PROPERTY OF OTHERS REQUIRE A SPECIAL AGREEMENT. CONTACT NYSEG FOR DETAILS. For CUSTOMER built lines NYSEG will require the CUSTOMER to sign a memorandum of customer ownership of facilities. Use form CA-206 for overhead facilities (on page 42) or CA-208A for underground facilities (on page 43). These stipulate that: •

The CUSTOMER owns and is responsible for the line right-of-way maintenance, so the line remains in a safe condition.

•

The CUSTOMER will be responsible for maintaining an adequate voltage level to the CUSTOMER'S facility, given an adequate voltage level at the point of interconnection.

The following chapter is divided into three sections; existing NYSEG facilities and the primary interconnection (section 1), CUSTOMER installed primary overhead and or underground (section 2), and the CUSTOMER'S installed secondary, and pole or pad for a NYSEG installed transformer (section 3).

SP-1099

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Chapter 2 - Secondary Metered Service

OVERHEAD PRIMARY

Customer Primary Overhead

SECTION 1 Existing NYSEG SECTION 3 facilities and primary SECTION 2 Customer pole or pad interconnect Customer installed and secondary, owned and Maintained NYSEG transformer primary overhead or underground

NYSEG Transformer

Primary Riser

Customer Primary Underground

UNDERGROUND PRIMARY

SP-1099

41

Rev 5/01

MEMORANDUM OF CUSTOMER OWNERSHIP OF ELECTRIC SERVICE LINE EXTENSION

Date _____________________

It is understood the electric service line connected to pole #_________ of line #_______ in the (town, village) of _______________________, consisting of _______ poles and facilities approximately __________ feet in length, serving (my, our) premises located at _____________________________, is (my, our) property and the line and right-of-way is to be maintained by (me, us) or (my, our) successors and assigns in a safe condition. Therefore, the operation or failure of said service line will not give rise to any liability on the part of NYSEG, its successors and assigns. If NYSEG's overhead facilities are to be replaced, moved, or relocated for any reason, the cost of relocating (my, our) overhead electric service line is to be borne by (me, us). It is further understood that should emergency repairs of said electric service line be necessary, and NYSEG is subsequently requested to make such repairs, (I, we) agree to pay to NYSEG the cost of repair. Further, (I, we) agree to be responsible for maintaining an adequate voltage level to (my, our) facilities given an adequate voltage level at the point of connection of said facilities to NYSEG's system.

Signed __________________________ Address _________________________ __________________________ Work Order or Service Order No. __________________ CA-206

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Rev 5/01

MEMORANDUM OF CUSTOMER OWNERSHIP OF UNDERGROUND ELECTRIC SERVICE LINES

Date _____________________

It is understood the underground electric service line connected to location #_________ of line #_______ in the (town, village) of _______________________, serving (my, our) premises located at _____________________________, consisting of facilities approximately __________ feet in length, is (my, our) property and the line and right-ofway is to be maintained by (me, us) or (my, our) heirs, successors and assigns in a safe condition. Therefore, the operation or failure of said service line will not give rise to any liability on the part of NYSEG, its successors and assigns. If NYSEG's underground facilities are to be replaced, moved, or relocated for any reason, the cost of relocating (my, our) underground electric service line is to be borne by (me, us). It is further understood that should emergency repairs of said electric service line be necessary, and NYSEG is subsequently requested to make such repairs, (I, we) agree to pay to NYSEG the cost of repair. Further, (I, we) agree to be responsible for maintaining an adequate voltage level to (my, our) facilities given an adequate voltage level at the point of connection of said facilities to NYSEG's system.

Signed __________________________ Address _________________________ __________________________

Work Order or Service Order No. __________________ CA-208A

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43

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CHAPTER 2 - Secondary Metered Services

Section 1

Existing NYSEG Facilities and Interconnection Three options exist for CUSTOMERS receiving secondary metered service from NYSEG's existing primary facilities: a) Overhead from existing NYSEG overhead facilities. b) Underground from existing NYSEG overhead facilities. c) Underground from existing NYSEG underground facilities. NOTE:

Road crossing poles, primary interconnect cables or overhead wires, terminations, insulators, etc., will all be supplied and installed as per Section III of the "Electric Service Procedures Manual."

NYSEG will determine (through discussions with the CUSTOMER) the point at which the CUSTOMER'S facilities interconnect with NYSEG's facilities. Where CUSTOMER facilities may be used to serve additional future CUSTOMERS, NYSEG may impose more stringent design and equipment requirements. A NYSEG supplied fused cutout will be placed on NYSEG's takeoff pole or the CUSTOMER'S first pole at NYSEG's discretion. In all cases NYSEG will make the final electrical connection from the CUSTOMER'S facilities to NYSEG's facilities. a) For CUSTOMERS extending overhead from NYSEG's overhead facilities, proceed to section 2 page 49 for the installation of the CUSTOMER'S primary overhead facilities. NYSEG will install the span of wire from the NYSEG takeoff pole to the CUSTOMER'S first pole, after the CUSTOMER has completed his installation. b) For CUSTOMERS extending underground from existing NYSEG overhead facilities, the CUSTOMER will install the underground primary cable (refer to page 46 for cable requirements, page 48 for the acceptance form, and page 51 for construction methods) to the base of the NYSEG designated pole, back-fill the trench, complete the cable riser 8 to 12 feet up the pole and coil a sufficient length of cable at this point to reach the primary cable terminations on the pole (NYSEG will provide the CUSTOMER with the details required for installing a riser on an existing NYSEG pole such as length of cable required, location on the pole, etc.). The CUSTOMER will seal the ends of the cable to prevent contamination and moisture ingress. NYSEG will complete the installation of the cable riser and install the cable terminations provided the CUSTOMER has installed a cable approved by NYSEG. If unacceptable cable is installed, there may be additional charges for NYSEG to terminate the cable. Warning: A minimum of ten-foot clearance shall be maintained at all times between NYSEG's energized high voltage conductors and equipment, and persons, tools, and materials including the cable being installed. SP-1099

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For a cable riser installed on a CUSTOMER owned pole, the riser will be supplied, installed, owned, and maintained entirely by the CUSTOMER. See page 53 for a typical riser installation. c) For CUSTOMERS extending underground from an existing NYSEG primary underground facility, the CUSTOMER will install the primary underground cable (refer to page 46 for cable requirements, page 48 for the acceptance form, and page 51 for construction methods) to within two feet of the NYSEG designated point of attachment. NYSEG will then complete the cable installation and terminations into NYSEG's equipment. If the cable installed by the CUSTOMER is not a NYSEG approved cable, there may be additional charges for NYSEG to terminate the cable.

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CHAPTER 2 - Secondary Metered Services

Section 1

Primary Cable - Requirements and Construction NOTE:

Only those cables meeting NYSEG current internal cable specification (SP-1294) will be suitable for takeover by NYSEG at a future date. If the CUSTOMER will be retaining ownership of the cable, see the minimum requirements below.

The following is NYSEG's minimum requirements for solid dielectric insulated cable suitable for use on CUSTOMER electric power systems at voltages of 15kV or 35kV. The CUSTOMER shall supply NYSEG with the selected manufacturer's specifications and receive approval prior to ordering cable. The cables shall be manufactured in accordance with the most recent applicable Insulated Cable Engineers Association (ICEA) and Association of Edison Illuminating Companies (AEIC) standards or be a NYSEG approved equivalent. AEIC shall take preference over ICEA in cases of conflict. The voltage rating of the cable shall be as required by the system with the minimum acceptable voltage class being 15kV. The minimum required conductor size is, #2 AWG concentric or compressed stranded copper or aluminum for 15kV, and 1/0 AWG concentric or compressed stranded copper or aluminum for 35kV. All conductors shall be stranded, annealed copper or "EC" grade aluminum as per current ICEA and National Electric Manufacturers Association (NEMA) standards. The cable shall have an extruded strand shield. The Cable shall have an extruded insulation layer of cross linked polyethylene (XLPE), tree retardant crosslinked polyethylene (TRXLPE), or an ethylene propylene rubber (EPR) based compound suitable for use at conductor temperatures listed in the current AEIC standard CS6. Minimum insulation thickness shall be as follows: Cable Voltage Rating

Minimum Average Thickness

15kV

175 mils

35kV

345 mils

The insulation shall be covered with an extruded insulation shield of a design as dictated by the appropriate current AEIC standard.

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For 15kV through 35kV cables with extruded insulation shielding over the insulation, the effort required to remove 1/2 inch strips of the insulation shielding, at room temperature, shall not be greater than 15 pounds. The shielding shall be removable without damaging the insulation, leaving no conducting material which cannot be readily removed. For jacketed cables, the jacket shall be strippable using a Ripley Tool Company WS-61 tool or equivalent. NOTE:

NYSEG reserves the right to refuse to energize cable it feels does not meet industry accepted minimum standards of construction, or require an industry accepted high voltage test prior to energizing.

NOTE:

Cables terminated with porcelain potheads will require an industry accepted high voltage test prior to energizing.

Typical cable constructions are described below: a) Two Conductor, Jacketed Cable (NYSEG required design for a NYSEG takeover at a future date) - The cable shall have a concentric neutral of copper wires and shall be covered overall with a PVC (poly vinyl chloride) or PE (polyethylene) jacket. The capacity of the concentric neutral shall be full capacity for conductor sizes up to 1/0 AWG. This cable would be suitable for single phase or three phase applications. For cable used only in three phase applications, neutrals shall be a minimum one-third (1/3) capacity for conductor sizes between 4/0 AWG and 500 KCM, and one-sixth (1/6) capacity for conductors 750 KCM or larger. All cable can be used for both direct buried and conduit installations and do not normally require a separate neutral*. *In joint trench applications with TV, communication, or other facilities, a separate, bare copper neutral, may be required. Refer to section 2 for a discussion of when this is a concern and the NESC (article 354) for the specific requirements. b) Single Conductor, Jacketed Cable - The cable shall have zinc or copper tape, or copper drain wires over the insulation shield and shall be covered overall with a PVC or PE jacket. This cable must be installed in conduit. A separate neutral conductor is required when installing this type of cable. The neutral size shall be equivalent to the concentric neutral size specified in item (a). c) Two Conductor, Unjacketed URD Type Cable - The cable shall have a concentric neutral of copper wires over the insulation shield. The capacity of the neutral shall be full capacity for conductor sizes up to 1/0 AWG (suitable for single phase or three phase application). For three phase applications the neutral shall be one-third (1/3) capacity for conductor sizes between 4/0 AWG and 500 KCM, and one-sixth (1/6) capacity for conductors 750 KCM or larger. This cable is for direct buried installation and does not require a separate neutral. .

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CUSTOMER PRIMARY VOLTAGE CABLE ACCEPTANCE FORM The CUSTOMER shall provide the following cable information for NYSEG's review and acceptance. Note: If the CUSTOMER does not obtain NYSEG's approval prior to installing the primary cable, the CUSTOMER may be subject to additional costs for NYSEG to install the cable terminations. CUSTOMER Name __________________________________________________ Location __________________________________________________________ Contractor Name ______________________________ Phone _______________________ Cable Manufacturer __________________________________________________________ Manufacturer Catalog No. __________________________________ Cable Voltage Rating _________________ Conductor Size _______________ Type _________ Type of Insulation _________ Insulation Thickness ________mils Diameter over Ins. ________ Concentric Neutral Size ____________________ Separate Neutral Size __________________ Jacketed __________ Non-Jacketed ____________ Cable Overall Diameter _______________ Note: NYSEG may require a two foot cable sample for review. NYSEG may require manufacturer information verifying that this cable was manufactured in accordance with NYSEG requirements -----------------------------------------------------------------------------------------------------------------NYSEG Engineering has reviewed the above information and has (examined _____), (waived _____ the requirement for) the cable sample. ____________ This cable is acceptable for this CUSTOMER underground service. ____________ This cable is not acceptable, for the following reasons: __________________________________________________________________________ __________________________________________________________________ Signed _____________________________ New York State Electric & Gas Corp. SP-1099

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CHAPTER 2 - Secondary Metered Services

Section 2

CUSTOMER Installed Primary Overhead and/or Underground As per Section III of the "Electric Service and Procedures Manual," the CUSTOMER will furnish, install, own, maintain, and operate all facilities between the primary interconnection and the NYSEG installed utilization transformer. The CUSTOMER can install: a) Pole mounted overhead equipment b) Primary underground cable c) A combination overhead and underground equipment (a)

Overhead Construction:

The CUSTOMER'S primary overhead facilities will begin at the CUSTOMER'S first pole. NYSEG will make the final connection between NYSEG's takeoff pole and the CUSTOMER'S overhead facilities after the CUSTOMER has completed his installation. All CUSTOMER overhead facilities shall be designed to the National Electrical Safety Code (NESC) requirements. Grade of construction shall be a minimum NESC grade C. All material and equipment used by the CUSTOMER shall be of good quality and new condition. The following materials are required for the transformer structure and are recommended for construction elsewhere. NOTE:

Treated lumber contains pesticides to protect it from insect attack and decay and requires the use of special handling and proper disposal methods. The CUSTOMER is advised to follow the recommendations in the manufacturer's Consumer Information Sheets supplied with these products

Poles: Transformer pole is to be a new southern yellow pine pole or equivalent in accordance with ANSI Spec. 05.1 latest edition and is to be full length pentachlorophenol, CCA, or creosote treated in accordance with section C4 of American Wood Preserver's Association Standards. Minimum length and class is to be one of the following: 40' and 45' Class 4, 50' Class 3, 55' Class 2. Pole setting depth is generally 2 feet plus 10% of pole length. NYSEG will specify the size of the meter pole and setting depth based on field conditions. Framing Materials: The transformer pole is to be framed with Fiberglass deadend arms or crossarms of southern yellow pine, Douglas fir or an equivalent. Wood crossarms are to be pressure treated with pentachlorophenol or an equivalent in accordance with section C25 of the American Wood Preservers' Association Standards. Minimum arm size is 3.5" x 4.5" x 8'. When crossarms are used, they shall be braced. Wood braces shall have a minimum cross section of 13/16" x 1 3/4" and are to be pressure treated with pentachlorophenol or an equivalent. SP-1099 49 Rev 5/01

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Section 2

All framing material shall be designed to the National Electrical Safety Code to a MINIMUM of Grade C Construction. Insulation Levels: Insulation levels shall be in accordance with the operating voltage, with 15kV class the minimum acceptable. Insulation design and electrical clearances shall conform to the National Electrical Safety Code. If the line is constructed in an area designated for future 34.5 kV operation, NYSEG may require 34.5 kV insulation for primaries. For single phase lines operating at delta voltages, NYSEG may have additional requirements, if a conversion to grounded wye is planned in the future. Line Conductors, Ground Wire and Connectors: Minimum size line conductor is #2 and is to be in accordance with applicable ASTM standards. The conductor and connector systems shall be designed to meet the National Electrical Safety Code Grade C construction. Recommended line conductor types are ACSR, AAAC, copper or copperweld. Conductor connectors should meet ANSI specifications for Class A connections. Only connectors designed for aluminum shall be used on aluminum conductors. Minimum size ground wire is to be #4 bare copper, solid or stranded, and soft drawn. Ground wire is to be covered with plastic molding as required by the National Electric Safety Code. Structure and equipment grounding shall meet the requirements of the National Electrical Code. Ground wire connectors shall be either compression, fired-on or bolted copper vise type. Anchor Systems: The anchor and guying system shall meet the minimum of Grade C construction of the National Electrical Safety Code. Guy wire shall be a minimum 3/8" on dead end structures and 9/32" on angle structures, extra high strength steel, with a galvanized class B coating per ASTM A-475. All guy hardware shall have a minimum 15,000 lb. rating and be hot dipped galvanized. Anchors shall be either, crossplate steel with a minimum cross section of 200 square inches or, power installed screw anchor with a minimum 8" diameter helix - 7000 ft.-lb. torque rated. Anchor rods shall have a minimum diameter of 3/4 inch. The number of anchors, and the length of the anchor rod, shall be as needed to achieve the required holding strength for the specific installation. All anchor equipment shall be galvanized in accordance with ANSI Specification C135.2, except the helix of screw anchors and crossplates, which may be either painted or bituminous coated.

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CHAPTER 2 - Secondary Metered Services (b)

Section 2

Underground Construction:

NOTE:

In accordance with industrial code #53, the CUSTOMER shall notify NYSEG and other utilities prior to digging.

CUSTOMERS who will be installing the primary cable in a common trench with telephone or cable TV cables (commonly referred to as joint trench) should adhere to the requirements of the NESC article 354. To paraphrase, if bare concentric neutral or semiconducting jacketed cables are direct buried, they can be installed in the trench with no intentional separation from the other facilities (random lay). If the primary cable is installed in conduit, or an insulating jacket is used, the NESC may require either a one foot separation between the primary cable and the other facilities, or the addition of a bare grounding conductor adjacent to the primary cable. Contact NYSEG for additional details prior to installing cable under these circumstances. The CUSTOMER'S privately owned underground system will commence at a CUSTOMER owned riser on a NYSEG designated pole, or at a NYSEG furnished and installed enclosure. The CUSTOMER can extend the single phase or three phase primary system using either a direct buried, or a conduit and manhole underground system. The CUSTOMER will install all primary cable, trench, conduit, and manholes (if necessary) between the interface point and the NYSEG installed transformer. The voltage class of the cable shall be in accordance with the operating voltage of the area to be served with 15kV being the minimum acceptable. In those area's designated for future conversion to a higher voltage, NYSEG may have additional requirements. The CUSTOMER'S primary cable specifications must be submitted to and accepted by NYSEG prior to ordering (see page 46 for cable requirements and page 48 for NYSEG's cable acceptance form). The CUSTOMER may be required to supply NYSEG with a primary cable sample to assist in reviewing the acceptance of the cable, and to provide sizing information for terminations. CUSTOMERS installing unacceptable cable may be charged for the installation of terminations. For direct buried primary cable installations, the minimum depth of burial shall be 30 inches for 15,000 volt cable and 36 inches for 35,000 volt cable. Depth of burial may be reduced as per the National Electric Code article 300-50. The cable shall be protected above and below with back-fill free from stones or other material that will damage the cable. The remainder of the trench will also be back-filled with select fill. The ends of all CUSTOMER installed cable shall be sealed by the CUSTOMER to prevent contamination of the cable with dirt or moisture. NYSEG reserves the right to inspect a CUSTOMER'S primary cable installation prior to back-filling. Where a CUSTOMER'S cable may be used to serve additional future CUSTOMERS, NYSEG may impose more stringent design and equipment requirements.

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CHAPTER 2 - Secondary Metered Services (c)

Section 2

Combination Overhead and Underground:

The CUSTOMER may install a combination overhead and underground system according to the requirements of item a. and b. above. CUSTOMERS installing a primary cable riser within the combination overhead and underground system shall have sole responsibility for installing the riser including, but not limited to, supplying, installing and maintaining all conduit, cable, terminations, brackets, grounding, and connections to the CUSTOMER'S overhead system. See page 53 for a typical customer installed riser.

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Section 2

Typical Customer Installed Riser Pole For installation on a CUSTOMER owned pole in a combination overhead and underground installation. This installation is the sole responsibility of the customer.

24" @15kV 48" @35kV

This is a generic drawing to provide basic design and minimum clearance information. For specific design information refer to NYSEG underground distribution standards section 2

24" min. @ 15kV 36" min. @ 35kV

NOTE: Install guying as needed

Customer Installed Protective Device For a two or three phase riser the additional fuse mountings would be offset 90 degrees from the one shown

36"

Customer Installed Terminations

20"

Neutral

Customer Installed Conduit Riser Single Conduit Only

Vent Coupler (if needed) Ground Line

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Section 3

CUSTOMER Installed Utilization Equipment: NYSEG will supply transformers for the following installations; a) Single phase pole mounted units (for single phase and 3 phase applications) b) Single phase or three phase pad mounted units CUSTOMERS requiring other types of installations will be required to take primary metered service and supply their own utilization equipment. (a)

Single Phase Pole Mounted Units:

For CUSTOMERS utilizing primary overhead to extend from NYSEG's existing system, NYSEG will furnish, install, own, and maintain, single phase pole mounted transformers and the transformer protection equipment. The CUSTOMER will furnish install, own and maintain the transformer pole as per the requirements of section 2. NYSEG, through discussions with the CUSTOMER, will determine the size, location and guying requirements of the transformer pole. The CUSTOMER will then complete the installation of the primary and secondary equipment on the transformer pole prior to NYSEG installing the transformer. NYSEG will also complete all connections to the transformers. The CUSTOMER'S secondary, metering installation, and grounding shall follow NYSEG's pamphlet "Specifications for Electric Installations". NYSEG will designate the location of the meter and the space required. (b)

Pad Mounted Single and Three Phase Transformers:

For CUSTOMERS extending primary underground cable to the transformer location, NYSEG will furnish, install, own and maintain, single or three phase pad mounted transformers on a CUSTOMER furnished, installed, owned, and maintained pad (see pages 55 - 57 for typical pad designs). The CUSTOMER will install the pad and required grounding, and install the primary and secondary cables into the pad. NYSEG will advise the CUSTOMER as to the length of cables required to complete the terminations. NYSEG will then install the transformer on the CUSTOMER'S pad and complete the primary and secondary terminations at the transformer. If the CUSTOMER has installed an unacceptable primary cable (see cable specifications on page 46) NYSEG may charge for the termination installation. The CUSTOMER'S secondary, metering installation, and grounding shall follow NYSEG's pamphlet "Specifications for Electric Installations". NYSEG will designate the location of the meter and the space required.

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CHAPTER 2 - Secondary Metered Service

Section 3

Flat Pads-Sizing for Three Phase Transformers

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

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Typical Flat Pad-Installation For Three Phase Transformers Alternate foundation designs (such as a vault pad) may be acceptable after review by NYSEG

NYSEG SECTION 7 - MANHOLES, VAULTS & PADS

DISTRIBUTION STANDARDS (Underground)

INSTALLATION FOR 3∅ ∅ TRANSFORMERS WITH SECONDARY CABLE BOX

FLAT PADS ISSUE NO. 1 DATE: NOVEMBER 1975 DR. DFR CKD. JFC APPR. LLB

This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

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Section 3

Vault Pad Installation For Single Phase Transformers A fiberglass vault is also acceptable after review by NYSEG (1 phase 100kva or less). NYSEG SECTION 7 - MANHOLES, VAULTS & PADS

DISTRIBUTION STANDARDS (Underground)

INSTALLATION OF CONCRETE VAULTPADS FOR 1∅ ∅ TRANSFORMERS

BOX & VAULT PADS ISSUE NO. 2 DATE: FEBRUARY 1993 DR. MJU CKD. RJN APPR. JAS

4.5 This is a NYSEG distribution standard. References to page and section numbers within this standard are to other NYSEG standards not to page and section numbers within this book.

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CHAPTER 3

CHAPTER 3 - Primary Metered Service in Areas of Sub-Transmission General Service Information NYSEG will attempt to provide service to a CUSTOMER from NYSEG's 34500 volt subtransmission system in accordance with NYSEG's tariff PSC-90. A CUSTOMER'S privately owned overhead and/or underground system can be used to extend a single or three phase primary line to an outdoor or indoor transformer location from NYSEG's 34500 volt sub-transmission system. Any application for service from NYSEG's 34500 volt sub-transmission system will need to be coordinated through the NYSEG Corporate Transmission Planning Group. They will determine the feasibility of serving a primary metered CUSTOMER from the requested sub-transmission facilities and designate whether the line can be considered ‘effectively grounded’. They will also determine if any additional CUSTOMER requirements may be imposed as a result of the facilities the CUSTOMER is requesting service from, such as: •

Voltage regulation

•

Additional switches

The basic installation will follow the requirements of chapter 1 'Primary Metered Service'. Customer equipment connected to NYSEG circuits determined to be ‘effectively grounded’ will have the same BIL requirements as in chapter 1. Any primary equipment connected to facilities not considered ‘effectively grounded’ will have a minimum BIL rating of 200kv. This includes all switches, insulators, cable, cable terminations and connectors, breakers or other protection equipment, and transformers. Lightning arrestors applied to systems not considered effectively grounded shall have a MCOV rating of 38kV. NYSEG will advise the CUSTOMER of the system parameters in the area of connection to allow proper sizing of protection equipment. The CUSTOMER shall submit all equipment specifications to NYSEG for review prior to purchasing.

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CHAPTER 3 - Primary Metered Service in Areas of Sub-Transmission Customer supplied, NYSEG operated disconnect switches May be required depending on circuit operating requirements (see note 1)

NYSEG metering equipment

This drawing is for illustration purposes only. A design specific to each installation will be supplied by NYSEG's Transmission Planning group.

Customer isolation Equipment

Customer protection equipment

Customer Regulation may be required depending on circuit operating parameters (see note 2)

Customer utilization transformer

Note 1 - CUSTOMERS who are unable to tolerate periodic outages may be required to provide additional disconnect switches to sectionalize the transmission facilities. This will allow NYSEG the ability to remove portions of the transmission facilities for maintenance purposes

Note 2 - Some transmission facilities may operate outside of the voltage range acceptable to the CUSTOMER. As a result the CUSTOMER may be required to install voltage regulation.

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