ELECTRIC SERVICE STANDARDS APPROVED RO BBss.westarenergy.com/PDFs/SS-70.pdf · and secondary...

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WESTAR ENERGY, INC. ALL RIGHTS RESERVED SS-

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COMMERCIAL-UNDERGROUND

GENERAL INFORMATION

TABLE OF CONTENTS

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TABLE OF CONTENTS

COMMERCIAL / INDUSTRIAL UNDERGROUND SERVICE

70.0 - 79.9 COMMERCIAL UNDERGROUND SERVICE

70.1 UNDERGROUND SERVICE - TYPE OF SERVICE AVAILABLE

70.2 UNDERGROUND SERVICE - TYPE OF SERVICE (CONT) & WATER SURFACES

72.1 UNDERGROUND SERVICE - CONDUIT INSTALLATION REQUIREMENTS; POLE JCT BOX

75.0 UNDERGROUND SERVICE - CLEARANCE AROUND PAD MOUNT TRANSFORMER

76.0 UNDERGROUND PRIMARY METERING UNIT FOR 3Ø DISTRIBUTION & SERVICES

77.0 UNDERGROUND CONCRETE PAD FOR 75-500 KVA 3Ø 12KV TRANSFORMER

77.9 UNDERGROUND PROTECTIVE BARRIER FOR PAD MOUNTED EQUIPMENT

70.3 UNDERGROUND SERVICE - UNDERGROUND SUPPLY

70.4 UNDERGROUND SERVICE - UNDERGROUND SUPPLY (CONTINUED)

70.5 UNDERGROUND SERVICE - TRENCH CROSS SECTIONS AND CONDUIT DETAILS

70.6 UNDERGROUND SERVICE - CONDUIT DETAILS (CONTINUED)

74.0 UNDERGROUND SERVICE - STAND FOR METERING OF PAD MOUNTED TRANSFORMER



77.4 UNDERGROUND SINGLE PHASE POLYETHLYENE TRANSFORMER PAD

79.0 (STANDARD DISCONTINUED FROM SERVICE)

78.0 UNDERGROUND PEDESTAL INSTALLATION DIAGRAM

70.7 UNDERGROUND SERVICE - TRENCH CROSS SECTIONS IN ROCKY AREAS

71.0 UNDERGROUND SERVICE - METER INSTALLATION

72.0 UNDERGROUND SERVICE - CONDUIT INSTALLATION REQUIREMENTS; PEDESTAL

72.2 UNDERGROUND SERVICE - CONDUIT AND CABLE RESPONSIBILITY; PEDESTAL

73.2 UNDERGROUND PADMOUNTED TRANSFORMER - SECONDARY BUS ENCLOSURE

74.1 UNDERGROUND SERVICE - CT CABINET INFORMATION DIAGRAM FOR CT METERING


73.0 UNDERGROUND SERVICE - MULTIPLE BUILDINGS FROM SINGLE TRANSFORMER

73.1 UNDERGROUND SERVICE - NUMBER OF SERVICE CONDUCTORS PER PHASE

76.2 UNDERGROUND CONCRETE PAD FOR PRIMARY METERING UNIT FOR 600 AMP 25KV

70.8 UNDERGROUND SERVICE - JOINT TRENCH

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ELECTRIC SERVICE STANDARDS I SS-70. I

COMMERCIAL UNDERGROUND SERVICE - URBAN AND RURAL

TYPE OF SERVICE AVAILABLE

THE UNDERGROUND SERVICE CONNECT! ON FROM \/EST AR ENERGY, INC. FACILITIES TO THE CUSTOMER'S BUILDING MAY CONSIST OF:

I. I AN UNDERGROUND SERVICE CABLE FROM 1/ESTAR ENERGY POLE TO THE BUILDING. I. 2 AN UNDERGROUND SERVICE CABLE FROM 1/ESTAR ENERGY PAD MOUNTED

TRANSFORMER DR SERVICE PEDESTAL TO THE BUILDING, WHENEVER THE PRIMARY DISTRIBUTION CIRCUIT IS ALSO INSTALLED UNDERGROUND. EACH OF THESE IS DESCRIBED IN DETAIL IN THE FDLLD\/ING SUBSECTIONS.

CUSTOMER SHALL SUPPLY NECESSARY SECONDARY CONDUIT, METERING CONDUIT, AND SECONDARY CONDUCTOR FROM THE PAD MOUNT TRANSFORMER TO THE BUILDING. 1/ESTAR ENERGY SHALL MAKE CONNECTIONS IN THE PAD MOUNT TRANSFORMER.

2. UNDERGROUND SERVICE FROM A WESTAR ENERGY POLE

THE SERVICE SHALL BE PROVIDED IN ACCORDANCE 1/ITH THE 1/ESTAR ENERGY 'GENERAL TERMS AND CDND IT I DNS FOR ELECTRIC SERVICE. ' PAGES SS-71. D AND SS-72. D SHOll METHODS OF INSTALLING UNDERGROUND SERVICE. CUSTOMER SHALL INSTALL CONDUIT ON PRIVATE PROPERTY OUTSIDE OF THE EASEMENT IN ACCORDANCE 1/ITH PAGES SS-7D. 4, SS-7D. 5, SS-7D. 6, SS-7D. 7, AND SS-72. D.

3. UNDERGROUND SERVICE SUPPLIED FROM AN UNDERGROUND DISTRIBUTION SYSTEM

WESTAR ENERGY SHALL OWN, INSTALL AND MAINTAIN AN UNDERGROUND PRIMARY DISTRIBUTION SYSTEM ACCORDING TO THE WESTAR ENERGY 'GENERAL TERMS AND CONDITIONS FOR ELECTRIC SERVICE. ' CUSTOMER SHALL INSTALL CONDUIT ON PRIVATE PROPERTY, OUTSIDE OF EASEMENT, IN ACCORDANCE WITH PAGES SS-7D. 4, SS-7D. 5, SS-7D. 6, SS-7D. 7, AND SS-72. D.

~CUSTOMER SHALL SUPPLY ALL 3 PHASE TRANSFORMER PADS AND SINGLE PHASE PADS FOR 25DKVA TRANSFORMERS. WESTAR ENERGY SHALL SUPPLY SINGLE PHASE PADS UP TO 167KVA.

WESTAR ENERGY SHALL CONNECT THE UNDERGROUND SERVICE CABLE TO THE PAD MOUNTED TRANSFORMER AND ASSIST THE CUSTOMER IN LOCATING THE DUCT LINE AT THE PROPERTY LINE FOR EACH CUSTOMER'S SERVICE.

3. I UNDERGROUND SERVICE CABLE. UNDERGROUND SERVICE CABLES FROM THE WESTAR ENERGY UNDERGROUND DISTRIBUTION SYSTEM TO THE BUILDING WILL BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH THE WESTAR ENERGY 'GENERAL TERMS AND CONDITIONS FOR ELECTRIC SERVICE.'

3. 2 ATTACHMENT TO TRANSFORMER. WESTAR ENERGY WILL CONNECT THE UNDERGROUND SERVICE CABLE TO THE PAD MOUNTED TRANSFORMER AND ASSIST THE CUSTDMER/DEVELDPER/CDNTRACTDR IN LOCATING THE DUCT LINE AT THE PROPERTY LINE FOR THE CUSTOMER'S SERVICE.

~ DENOTES LATEST REVIS I ON

COMMERCIAL - UNDERGROUND TYPE OF SERVICE AVAILABLE

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ELECTRIC SERVICE STANDARDS I SS-70. 3

UNDERGROUND SUPPLY

A CUSTOMER MAY REQUEST UNDERGROUND SUPPLY FROM OVERHEAD PRIMARY. THIS TYPE OF SERVICE SHALL BE PROVIDED IN ACCORDANCE WITH THE WESTAR ENERGY'S 'GENERAL TERMS AND CONDITIONS FOR ELECTRIC SERVICE.' THE CUSTOMER SHALL BE BILLED FOR THE ADDITIONAL COST OF UNDERGROUND SERVICE THAT IS ABOVE THE COST OF A COMPARABLE OVERHEAD SERVICE.

5. 1 TRANSFORMER PAD CONSTRUCTION

_.CUSTOMER SHALL SUPPLY ALL THREE PHASE TRANSFORMER PADS AND 250KVA SINGLE PHASE PADS. WESTAR ENERGY SHALL SUPPLY SINGLE PHASE PDLYPADS FOR 167KVA ~ SMALLER. IF CUSTOMER DESIRES A CONCRETE PAD, THEN THE CUSTOMER SHALL SUPPLY THE CONCRETE PAD AS STATED BELOW.

CONCRETE PADS SHALL BE CONSTRUCTED IN ACCORDANCE WITH WESTAR ENERGY SPECIFICATIONS SHOWN ON SHEETS SS-77. 0, SS-77. 1, SS-77. 2 AND SS-77. 3. THE PORTION OF THE TRANSFORMER PAD WHICH SUPPORTS THE TRANSFORMER MUST BE POURED ON LEVEL UNDISTURBED EARTH AT FINAL GRADE. IF ANY EXCAVATION IS NECESSARY UNDER THIS PART OF THE PAD, ADEQUATE PROVISION MUST BE MADE TO PREVENT SETTLING OF THE PAD.

5. 2 TRANSFORMER ACCESSIBILITY

A. PAD MOUNT TRANSFORMERS

THE TRANSFORMER MUST BE LOCATED SO THAT IT IS ACCESSIBLE TO WESTAR ENERGY CREWS AT ALL TIMES. NO PORTION OF THE BUILDING SHALL EXTEND OVER THE TRANSFORMER. IF THE TRANSFORMER IS SURROUNDED BY OBSTACLES, THEN PASSAGEWAYS ADEQUATE TO ACCOMMODATE TRUCKS DR OTHER NECESSARY LIFTING AND HAULING EQUIPMENT MUST BE PROVIDED TO ALLOW FOR THE REPLACEMENT OF THE TRANSFORMER.

5. 3 TRANSFORMER VAULT CONSTRUCTION

WHEN TRANSFORMERS ARE TO BE INSTALLED IN VAULTS; THE VAULT SHALL BE DESIGNED BY DISTRIBUTION ENGINEERING FIELD SUPPORT.

5. 4 CONNECTIONS

WESTAR ENERGY SHALL CONNECT BOTH THE PRIMARY AND THE SECONDARY CABLES TO THE TRANSFORMER TERMINALS. THE CUSTOMER/CONTRACTOR SHALL BE RESPONSIBLE FOR CORRECT MARKINGS OF CUSTOMER'S CABLES.

ALL CONDUCTORS OF A CIRCUIT SHALL BE IDENTIFIED AND GROUPED TOGETHER NEC 250. 24CBl, 310. 4. WESTAR ENERGY MAY REQUEST VERIFICATION OF MARKINGS BEFORE CONNECTIONS ARE MADE TO THE TRANSFORMER.

-. DENOTES LATEST REVIS I ON

COMMERCIAL - UNDERGROUND UNDERGROUND SUPPLY

r~ &r-----------------------------------~----------------------,~--------------~ "' u <1: WESTAR ENERGY, INC. ALL RIGHTS RESERVED SS-70. 3


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COMMERCIAL - UNDERGROUND

UNDERGROUND SUPPLY (CONT.)

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OVER OR UNDER OTHER SUBSURFACE STRUCTURES.

5.5 MANHOLES & PEDESTALS

IF A CONDUIT AND PRIMARY CABLE RUN EXCEEDS 250 FEET, OR HAS 90

DEGREE TURNS, ONE OR MORE MANHOLES OR PRIMARY PEDESTALS MAY BE

REQUIRED IN ACCORDANCE WITH WESTAR ENERGY SPECIFICATIONS AND

WESTAR ENERGY FIELD SUPPORT ENGINEERING. THE CUSTOMER, OR THE

CUSTOMER'S REPRESENATIVE SHALL CONSULT WITH WESTAR ENERGY IN

DETERMINING APPLICATION OF THE MANHOLES OR PRIMARY PEDESTALS.

5.6 LOCATION AND ROUTING OF CONDUIT FOR CABLES

A. CONDUIT SHOULD BE LOCATED SO AS TO BE SUBJECT TO THE LEAST

DISTURBANCE PRACTICAL. CONDUIT TO BE INSTALLED PARALLEL TO

OTHER SUBSURFACE STRUCTURES SHOULD NOT BE LOCATED DIRECTLY

B. CONDUIT SHOULD BE INSTALLED IN AS STRAIGHT AND DIRECT A LINE AS

PRACTICAL. WHERE HORIZONTAL TURNS ARE REQUIRED, THE MINIMUM RADIUS

SHALL NOT BE LESS THAN 36" AND TOTAL NOT MORE THAN ONE 90 DEGREE TURN.

C. THE LOCATION OF STRUCTURES IN THE PATH OF THE PROPOSED CABLE

ROUTE SHALL, AS FAR AS PRACTICAL, BE DETERMINED PRIOR TO THE

ROUTING AND TRENCHING OPERATION.

D. CABLES SHOULD NOT BE INSTALLED DIRECTLY UNDER BUILDING OR

STORAGE TANK FOUNDATIONS. WHERE INSTALLATION UNDER SUCH

STRUCTURES CANNOT BE AVOIDED, APPROPRIATE MEASURES SHALL BE

TAKEN TO PREVENT TRANSFER OF A HARMFUL LOAD ONTO THE

CONDUIT AND CABLE.

5.7 CONDUIT CLEARANCES

THE HORIZONTAL AND/OR VERTICAL CLEARANCE BETWEEN CONDUIT

AND OTHER UNDERGROUND FACILITIES SHALL BE CONTROLLED AT A

MINIMUM OF 12 INCHES, OR MORE IF NECESSARY, TO PERMIT ACCESS

TO AND MAINTENANCE OF EITHER FACILITY WITHOUT DAMAGE TO THE

OTHER. SEE NESC 320.

NOTE: CLEARANCE REQUIREMENTS ARE BASED ON RULES FOR UNDERGROUND

LINES -- FROM NESC ANSI-C2.

COSTS OF CONDUIT, PEDESTALS, PADMOUNT TRANSFORMERS, AND CONDUCTORS

MAY BE BILLED TO THE CUSTOMER/CONTRACTOR/DEVELOPER. CONTACT WESTAR

ENERGY TO DETERMINE COSTS THAT MAY APPLY TO THE INSTALLATION.

5.8 STREET OR ROAD CROSSING

ALL STREET AND ROAD CROSSINGS WILL USE EITHER GALVANIZED STEEL OR BORE

GUARD. ALL OTHER PRODUCTS MUST BE APPROVED BY WESTAR ENERGY ENGINEERING.

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-1 I I 'u I SPACE

SERVICE DUCT"

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SUPPLY SPACE

~ A 3' MIN LAYER OF SAND SHALL BE INSTALLED ABOVE AND BELOW THE CONDUIT.

~ MARKER TAPE INSTALLED 6'-12' BELOW GRADE.

3. GAS, SEWER AND WATER LINES SHALL NOT BE INSTALLED IN JOINT TRENCH.

ill EXCEPTION' LESSER SEPARATION MAY BE USED WHERE THE PARTIES INVOLVED CONCUR' < NESC 320. B. 2) EXCEPT! ONS SHALL BE MADE IN WRITING AND ALL COPIES GIVEN TO ALL PARTIES.

~ SPECIAL DEPTH CONDITIONS APPLY IN ROCK SEE SS-70. 7.

COMMERCIAL - UNDERGROUND WESTAR ENERGY

('j ~ - DENOTES LA TEST REVIS I ON JOINT TRENCH w Q_r-------------------------------~L--------------------,--------------~

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MAXIMUM NUMBER OF SERVICE CONDUCTORS

KVA HIGH SIDE LOW SIDE PER PHASE ALLOWED 3PH VOLTAGE VOLTAGE CONNECTION AMPACITY PER PHASE

!50 12470 120/208 DELTA-WYE 416. 4 4 !50 12470 277/480 DELTA-WYE 180. 4 4 300 12470 120/208 DELTA-WYE 832. 7 6 300 12470 277/480 DELTA-WYE 360. 8 6 500 12470 120/208 DELTA-WYE 1387. 9 6 500 12470 277/480 DELTA-WYE 601. 4 6 750 12470 120/208 DELTA-WYE 2081. 8 8 750 12470 277/480 DELTA-WYE 902. I 8 1000 12470 120/208 DELTA-WYE 2775. 7 8 1000 12470 277/480 DELTA-WYE 1202. 8 8 1500 12470 277/480 DELTA-WYE 1804. 2 8 2000 12470 277/480 DELTA-WYE 2405. 6 8 2500 12470 277/480 DELTA-WYE 3007. 0 8

THE MAX I MUM NUMBER OF CONDUCTORS PER PHASE SHALL NOT BE EXCEEDED. WESTAR ENERGY RESERVES THE RIGHT TO REFUSE TERMINATING CONDUCTORS THAT ARE IN EXCESS OF THE STATED MAXIMUM.

- IN CASES THAT THE MAXIMUM CONDUCTORS PER PHASE IS EXCEEDED USE SS-73. 2 SECONDARY BUS ENCLOSURE.

-DENOTES LATEST REVISION

COMMERCIAL - UNDERGROUND NUMBER OF SERVICE

CONDUCTORS PER PHASE ~ ~ &r-----------------------------------~L----------------------,~------------------1 "' u <1: WESTAR ENERGY, INC. ALL RIGHTS RESERVED SS-73. 1

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STAND MATERIAL• 2'x2'x114' GALV ANGLE IRON SUPPLIED, INSTALLED,

AND MAINTAINED BY CUSTOMER.

r--o:- 0 ---+-- , ------..,--'---- r--METER ENCLDSURE<S>SUPPLIED ............. _ r'

5' -6' MAX

BY WESTAR ENERGY INSTALLED BY CUSTOMER

3' -0' MIN ...

FINAL -------+~-----------4-+---t------GRADE LEVEL--------------~------

NOTES•

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!. THE PREFERRED METER LOCATION FOR METERING REQUIRING CURRENT TRANSFORMERS IS ON THE PAD MOUNTED TRANSFORMER. WHEN AN ALTERNATE LOCATION IS NECESSARY IT IS PREFERRED THAT THE METERING BE INSTALLED ON THE BUILDING ADJACENT TO THE TRANSFORMER <WHEN BUILDING IS WITHIN 15FT OF THE TRANSFORMER). OTHERWISE IT WILL BE NECESSARY FOR THE CUSTOMER TO INSTALL A METER STAND AS SHOWN ABOVE ATTACHED TO THE TRANSFORMER PAD. THE CUSTOMER SHALL PROVIDE I' UL LISTED ELECTRICAL CONDUIT FROM THE TRANSFORMER TO THE METER ENCLOSURE.

2. METER ENCLOSURES SUPPLIED BY WESTAR ENERGY AND INSTALLED, OWNED, AND MAINTAINED BY CUSTOMER.

3. METERING ARRANGEMENT MAY ONLY REQUIRE THE USE OF ONE METER ENCLOSURE. STAND WIDTH MAY BE ADJUSTED FOR METERING REQUIRING ONLY ONE METER ENCLOSURE.

4. METER ENCLOSURE SHALL BE INSTALLED WITHIN 15 FEET OF THE PADMOUNT TRANSFORMER FOR 3 PHASE CURRENT TRANSFORMER METERING. THERE SHALL BE 3 FEET OF CLEAR SPACE IN FRONT AND ON THE SIDES OF THE STAND. CONTACT WESTAR ENERGY LOCAL SERVICE CENTER WHEN DETERMINING THE LOCATION OF ANY METER ENCLOSURE LOCATION . -

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~ DENOTES LATEST REVISION

COMMERCIAL- UNDERGROUND STAND FOR METERING OF

PADMDUNT TRANSFORMER >~ &~------------------------------------~------------------------r-~---------------1 "' u « WESTAR ENERGY, INC. ALL RIGHTS RESERVED SS-74. 0

7

6' MAX

5'-6" MAX

5'-0" MIN

SEE SS-70.6 FOR SIZE &

NUMBER OF CONDUITS

**

***

***

* 120/240 VOLT SINGLE PHASE, 120/208 VOLT THREE PHASE AND 277/480

** REQUIRES HINGED SINGLE DOOR

*** REQUIRES HINGED DOUBLE DOOR

VOLT THREE PHASE SHALL USE A SELF CONTAINED METER ENCLOSURE.

***

**


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CT CABINET INFORMATION &

DIAGRAM FOR CT METERING

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5' MIN

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NOTES:

THE PAD SHALL BE LOCATED AS FAR AS PRACTICAL FROM ANY FRAME OR BRICK VENEER STRUCTURE,

BUT NOT CLOSER THAN 3 FEET FROM ANY STRUCTURE WALL OR OBSTRUCTION.

THE TRANSFORMER SHALL BE INSTALLED IN A LOCATION READILY ACCESSIBLE AT ALL TIMES.

NO PORTION OF ANY STRUCTURE SHALL EXTEND OVER THE TRANSFORMER.

DRAINAGE OF THE AREA SURROUNDING THE TRANSFORMER SHALL BE AWAY FROM THE STRUCTURE.

THE TRANSFORMER SHALL BE INSTALLED SO THAT THE FRONT (ENTRANCE SIDE) OF THE PADMOUNT

TRANSFORMER DOES NOT FACE THE STRUCTURE.

CUSTOMER SHALL INSTALL ADEQUATE BARRIERS (SEE SS-77.9) TO PREVENT DAMAGE TO

TRANSFORMERS THAT ARE LOCATED IN AREAS OPEN TO VEHICULAR TRAFFIC. STRUCTURES OR

BARRIERS DIFFERENT THAN SPECIFIED IN SS-77.9 SHALL NEED TO BE APPROVED BY WESTAR ENERGY

AND WILL REQUIRE ADEQUATE WORKING SPACE AND VENTILATION.

ANY ABOVE GROUND OBSTRUCTIONS SUCH AS COOLING TOWERS, SHRUBS, PLANTS' FENCES, GAS

METERS, AND GAS LINES SHALL NOT BE WITHIN 10 FT OF THE FRONT OR 3 FT OF THE SIDES OF THE

TRANSFORMER PAD.

ANY ENCLOSURE AROUND THE TRANSFORMER LOCATION SHALL HAVE PROVISION FOR ADEQUATE

VENTILATION.

PLEASE NOTE PRIMARY PEDESTALS/JUNCTION CABINETS NEED THE SAME 3 AND 10 FOOT CLEARANCES

AS TRANSFORMERS. SEE SS-78.0 FOR DETAILS.

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10' MIN CLEARANCE ON ENTRANCE

SIDE OF PAD MOUNT TRANSFORMER

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CLEARANCE AROUND PAD MOUNT

TRANSFORMER

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~ wz "" PAD PROVIDED BY CUSTOMER AND LOCATION SHALL BE APPROVED BY WESTAR ENERGY. "' ~"' "' V>W w TRANSFORMER SHALL BE INSTALLED NEAR THE CUSTOMER'S SERVICE ENTRANCE.

f-f-Z<[ <[ 3. IF TRANSFORMER PAD IS INSTALLED IN AN AREA SUBJECT TO VEHICULAR TRAFFIC, "'"' "' :::JQ_ Q_ THE INSTALLATION SHALL BE PROTECTED WITH A PIPE-RAIL GUARD. <SEE SS-77. 9) f-:::J :::J

4. FOR PROPER CLEARANCE AROUND THE TRANSFORMER, REFER TO SS-75. 0. o..- " 5. CONTRACTOR SHALL EXTEND FORMS DOWN TO AT LEAST 3' BELOW AVERAGE GROUND LINE. 00 0 ,,

' en- CD 6. CONCRETE SHALL BE A MINIMUM OF 3,000 LB. MIX. C\JO (\j ,,

' 7. TOP OF THE TRANSFORMER PAD SHALL RECEIVE A SMOOTH TROWEL FINISH. -o (\j -- - CORNERS AND EDGES SHALL BE ROUNDED DR BEVELED. (\J(") ..- 8. CONDUIT OPENING SHALL BE FREE AND CLEAR OF CONCRETE.

~ TOPS OF THE CONDUITS SHALL BE FLUSH WITH THE TOP OF THE CONCRETE PAD.

"" " NUMBER OF CONDUITS NECESSARY IS DEPENDENT ON THE MAXIMUM NUMBER OF SERVICE DO 0 CONDUCTORS ALLOWED IN THE LOW-VOLTAGE COMPARTMENT OF THE TRANSFORMER. ' ' ' CDCD CD REFER TO SS-73. 1 FOR MAXIMUM NUMBER. INSTALL 1" METERING CONDUIT FORM PAD (\j(\j (\j

TO METER ENCLOSURE WHEN TRANSFORMER RATED METERING IS SET ON ADJACENT BUILDING ' ' ' (\j(\j (\j DR STAND ~ METERING TRANSFORMERS ARE IN THE PADMDUNT TRANSFORMER. <SEE SS-74. 0) -- -11. WESTAR ENERGY RESERVES THE RIGHT NOT TO ACCEPT THE CONDITION OF THE

CONCRETE PAD IF IT FAILS TO MEET THE REQUIREMENTS STATED IN THIS STANDARD.

f-f- -~ THE 6' ABOVE GRADE CAN BE REDUCED TO 4' ABOVE FINISHED PAVEMENT. IO>! D CONDUIT TO EXTEND 1' TO 2' BEYOND >V> "' EDGE OF PAD. DO NOT BACKFILL. USE COMMERCIAL UNDERGROUND MIN 3/4' PLYWOOD DR COMPARABLE -

"' COVER TO SECURE HOLE. CONCRETE PAD FOR 25-250 kVA w >

O>!D 1(1) 12kV TRANSFORMER UC< -DENOTES LATEST REVISION wa_ >-I Q_

WESTAR ENERGY, INC. ALL RIGHTS RESERVED I SS-77. 3 P'lU <[

Know what's

R

C

SINGLE PH. PEDESTAL

THREE PH. PEDESTAL

SECONDARY PEDESTAL

PEDESTAL

TYPE

TOP VIEW

EXCAVATION DIMENSIONS

PEDESTAL

FRONT VIEWSIDE VIEW

LID SEAM

LATCH

GROUND ROD

Know what's below.before you dig.Call

R

NOTES:

PEDESTAL PROVIDED AND INSTALLED BY

WESTAR ENERGY AT CUSTOMERS EXPENSE.

THE CUSTOMER SHALL PROVIDE AN

EXCAVATION IN THE CENTER LINE OF

THE DITCH AT THE PROPER LOCATION

FOR INSTALLATION OF PEDESTALS.

MAXIMUM LENGTH OF SERVICE 135 FEET,

SECONDARY IS 175 FEET.

PRIMARY PEDESTALS SHALL BE LOCATED AS FAR FROM PRACTICAL FROM ANY FRAME OR BRICK VENEER

STRUCTURE, BUT NOT CLOSER THAN 3 FEET FROM ANY STRUCTURE WALL OR OBSTRUCTION.

PRIMARY PEDESTALS NEED 10 FEET CLEAR WORKING SPACE DIRECTLY IN FRONT OF THE PEDESTAL (IN

THE DIRECTION ITS DOOR OPENS). ADDITIONALLY, PRIMARY PEDESTALS NEED 3 FEET CLEAR WORKING

SPACE IN OTHER DIRECTIONS.

LENGTH TO RUN PARALLEL WITH TRENCH.

FOR CONDUIT SIZING USE SS-70.6

1

5

3

4

2

LENGTH

26"

WIDTH

-W-

DEPTH

-D--L-

60"

88" 57" 15"

51" 15"

26" 10"

6" ABOVE INSIDE

GRADE LINE

D

2

1

* THREE PHASE

PEDESTAL SHOWN

L

CUSTOMER'S DITCH

PER SS-70.5 & 70.6

L

L W

W

6

7

600/900 A THREE PH. PED. 101" 60" 15"


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V


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RO

VE

D


SS-

DA

TE

DE

SC

RIP

TIO

N


PEDESTAL INSTALLATION DIAGRAM

78.0

78.0

81

1/0

7/1

4M

OD

IF

IE

D E

XC

AV

AT

IO

N D

IM

EN

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NS

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BB

91

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0/1

6M

OD

IF

IE

D N

OT

ES

A

ND

4

A

ND

5

.M

CG

JJR

RO

10

02

/2

3/1

8A

DD

ED

E

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AT

IO

N D

IM

EN

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F

OR

6

00

/9

00

A

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P

A

G

E

I

N

T

E

N

T

I

O

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L

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L

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T

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ELECTRIC SERVICE STANDARDS APPROVED RO BBss.westarenergy.com/PDFs/SS-70.pdf · and secondary...

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