CONSTRUCTION STANDARD ELECTRIC OPERATIONS ORGANIZATION

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1 Page 1 of 11 R1 ****This Standard Supercedes CE Macros MPR1S, MUR1S, MPR3S & MUR3S and portions of BECo Standards CS , CS & CS **** PRIMARY URD RISER CONSTRUCTION TABLE OF CONTENTS Page 1 Scope Safety Bill of Material Compatible Units 3 5 Construction Signatures.. 11

2 Page 2 of Purpose 1.1 The purpose of this construction standard is to show the installation of a primary URD riser, for voltages 25kV and below. Risers shall be built to the highest standard operating voltage in the service center, but arresters shall be matched to the operating voltage. 2.0 Safety 2.1 Follow all appropriate safety procedures and adhere to all safety requirements for the use of personal protective equipment, headgear, and eye protection. All covered primary taps are to be treated as if bare. 3.0 Bill of Materials ITEM DESCRIPTION CAT ID Compatible Unit 1 Fused Cutout Polymer, for seacoast use 650 (15 kv) 9045 (27 kv) (27kV) CCOFM CCOFH CCOFHP 2 Single phase equip bracket Si Coated, for seacoast use 934 (fiberglass) 1590 (Silicone) PBE1 PBE1-SIL 3 Surge Arrester System Voltages: 3740GY or 4160GY 400 delta or 320GY 13200GY 1300GY 2260GY (rating) 42 (3 kv) 43 (6 kv) 47 (10 kv) (12 kv) 4 (1 kv) CSA3 CSA6 CSA10-R CSA12-R CSA1-R 4 Cold Shrink Termination for 15 kv (#1sol, #2str) & kv (#2str, 1/0sol) UT-URD 17 Cable Grip 15/25 kv (1 1 ¼ ) Cable Support Bracket 94 UT-BKT 6,7 Ground Rod (5/ ) & Connctr 9229, 9009 Wire, #4 Cu, ground wire Ground Wire Molding Cable U guard molding 2 Cable U guard molding RS Conduit, 10 ft length RS Quarter bend, 36 radius PVC to RS Coupling Ground connector for 4 steel riser pipe and sweep 16 4 Conduit Strap 1234 CGNP, NCRS4 UGARD3 UGARD2 NCRS4

3 Page 3 of 11 ITEM DESCRIPTION CAT ID Compatible Unit 15 4 to 3 PVC riser adapter 9402 NFP4-A32 16 Listed after #14 17 Listed after #4 1 Duct Seal 9469 (1 lb) NADUX kv, #2 Cu EPR/Hypalon CWT Position Equipment Bracket SI Coated, for seacoast use PBE3 PBE3-SIL kv Spacer Anti-sway Bar 51 CSP-MAS 22 Small, bronze hot line connctr Line Duc for messenger, 4ft 735 CSP-LDUC 24 4 PVC cap, external fit 9460 NFP4-CAP 25 Crossarm, double fir 39 ( pin) 26 Crossarm braces, flat 92 PCD10 27 Slip Coupling, 4 cast iron 1345 NCRS4 2 Ground Bushing connector 11 NFS4-GNDBUSH 4.0 Compatible Units Compatible Units (CUs) are materials used together to build to standards. They may include individual or groups of items, sometimes called Compatible Unit Assemblies. Below are key riser CU Assemblies and related items. CU Name NCRS4 CGNP UT-URD UTUA-3PH Title Riser, 4"x10 steel standpipe w/ sweep #4 Cu Pole Ground Cable Termination 15/25KV, single, #1S-1/0S-#2 Al/Cu URD Termination Assembly, 15/25KV 3 Ph, #1S-1/0S-#2 Al/Cu, w/ crossarms & U-guard Components CatID Description CatID Qty All materials detailed in bill of materials to build single riser steel conduit, sweep & ground rod Pole ground w/ 35 ft of #4 Cu Wire, connect to grounding installed with riser pipe Single cold shrink termination for 25/15kV URD cable 1/0sol, #1 sol or #2 str with pin terminal connector and cable grip 15/25 kv Cold Shrink Termination Cable Grips pin arms & braces U-guard, 10 ft 753 2

4 Page 4 of 11 UTUA-1PH UTUA- 2PH URD Termination Assembly, 15/25KV 1 Ph, #1S-1/0S-#2 Al/Cu, w/ fiberglass bracket & U-guard URD Termination Assembly, 15/25KV 2 Ph, #1S-1/0S-#2 Al/Cu, w/ fiberglass brackets & U-guard 15/25 kv Cold Shrink Termination Cable Grips Fiberglass Equip Bracket, U-guard, 10 ft /25 kv Cold Shrink Termination Cable Grips Fiberglass Equip Bracket, U-guard, 10 ft CSA Surge Arrester(s) Match Arrester to operating voltage, specify qty 5.0 Construction 5.1 Locate the riser and spare duct according to Figure 1. If it is necessary to install a second riser (single phase only) on a pole, locate as indicated. 5.1a No more than 2-single phase or 1-three phase primary risers shall be allowed on a pole. 5.1b At ground level, the pole s circumference cannot be more than 45% encircled with risers from all utilities. Figure 1 Location of Riser

5 Page 5 of Cables that are not to be immediately terminated shall be left individually coiled, with adequate length to apply a termination & connect to the primaries, and supported above the steel riser pipe. Minimum safe bending radius for the cable is 12X cable diameter. Coils left above the riser shall have a 36 diameter to avoid cable damage. 5.3 If the cables left coiled above the riser are not of adequate length to connect to the primary, they shall be the contractor s, installer of the cable, responsibility to replace. 5.4 Surge arrester leads should be kept as short as possible to maximize protection. 5.5 Riser Grounding (See C5000 for more grounding details) 5.5a Bond all steel riser pipes to pole ground. Note: Grounding bushings may be used as an alternative to the U shaped pipe ground connector. 5.5b If cast iron slip couplings are used, the steel sweep bellow ground shall have its own ground connector connected to the pole ground and rod. 5.5c To prevent theft and vandalism the ground wire molding shall be stapled every d In NSTAR south locations, a bare 1/0 copper ground wire shall be installed, in the trench, from the riser to the first pad or pull box ground ring. 5.5e In 400 Volt delta primary areas, do not connect the arrester grounds to the secondary/system neutral. See C4402 for more details 5.6 Seal any gaps between the cable and the riser cap or adapter with duct seal. Any unused ducts shall be capped. 5.7 Minimum 45 pole size is preferred, however, 40 poles may be utilized where clearances allow.

6 Page 6 of 11 LA TOP VIEW " J-HOOK SUPPORTS CABLE GRIP TAPE GROUND WIRE & CONNECTION TO AT LEAST BELOW TERMINATION TIE-WRAP AT THE BOTTOM DUCT SEAL " RISER GROUND CLAMP IF USING SLIP COUPLING, A GROUND IS REQUIRED ON THE SWEEP BELOW GRADE " 6 12 FRONT VIEW 13 SIDE VIEW Figure 2 Single-Phase Riser - Open Wire Main Line

7 Page 7 of " J-HOOK SUPPORTS CABLE GRIP TAPE GROUND WIRE & CONNECTION TO AT LEAST BELOW TERMINATION TIE-WRAP AT THE BOTTOM DUCT SEAL " RISER GROUND CLAMP IF USING SLIP COUPLING, A GROUND IS REQUIRED ON THE SWEEP BELOW GRADE " 6 12 FRONT VIEW 13 SIDE VIEW Figure 3 Single-Phase Riser - Spacer Cable Main Line

8 Page of 11 3 LA LA LA USE ' GUY INSUL. IF GUY IS REQ'D OR ELSE ATTACH LOWER 36" MIN J-HOOK SUPPORTS CABLE GRIPS TAPE GROUND WIRE & CONNECTION TO AT LEAST BELOW TERMINATION TIE-WRAP AT THE BOTTOM DUCT SEAL " IF USING SLIP COUPLING, A GROUND IS REQUIRED ON THE SWEEP BELOW GRADE. Figure 4 - Three-Phase Riser - Open Wire Main Line

9 Page 9 of " J-HOOK SUPPORTS CABLE GRIPS TAPE GROUND WIRE & CONNECTION TO AT LEAST BELOW TERMINATION TIE-WRAP AT THE BOTTOM DUCT SEAL " IF USING SLIP COUPLING, A GROUND IS REQUIRED ON THE SWEEP BELOW GRADE Figure 5 - Three-Phase Riser - Spacer Cable Main Line

10 Page 10 of 11 LA LA TOP VIEW " TAPE GROUND WIRE & CONNECTION TO AT LEAST BELOW TERMINATION TIE-WRAP AT THE BOTTOM J-HOOK SUPPORTS CABLE GRIP DUCT SEAL " RISER GROUND CLAMP (TYP) IF USING SLIP COUPLING, A GROUND IS REQUIRED ON THE SWEEP BELOW GRADE. 7 30" 6 12 FRONT VIEW 13 SIDE VIEW Figure 6 - Single-Phase Loop Riser

11 Page 11 of Approval Signature Approved by: Amin Jessa Director, Distribution Engineering