INFORMATION & REQUIREMENTS ELECTRIC SERVICE - NStar

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SKETCH 19 Meter Installation for 200 Amperes, Three Phase, 3 Wire, 240 or 480 Volt Service With 5 Terminal Meter Socket and Bypass SKETCH 20 Meter Installation for 200 Amperes, Three phase, 4 Wire, 120/208 or 277/480 Volt Service With 7 Terminal Meter Socket and Bypass LINE LINE NA B C COMMON PHASE CONNECTION <strong>SERVICE</strong> NEUTRAL 5th TERMINAL BY-PASS LEVER IN BY-PASSING POSITION <strong>SERVICE</strong> NEUTRAL BONDED TO BOX BY-PASS LEVER IN BY-PASSING POSITION LOAD N A B C LOAD 1. COMMON PHASE CONNECTION MUST BE INSULATED FROM THE SOCKET. On Three Phase Delta only A & C phases are bypassed; B phase is always energized and 5th terminal permanently attached at 6 o’clock position. 2. Drain hole in the bottom of meter socket must be punched out. 3. A manual, single handled bar with locking jaw bypass and safety arc shield is required. 4. 5th Terminal located at 6 o’clock. 128 1. Drain hole in the bottom of meter socket must be punched out. 2. A manual, single handled bar with locking jaw by-pass and safety arc shield is required. 129
SKETCH 21 Meter Installation for 400 Amperes, Single phase, 3 Wire, 120/240 or 120/208 Volts With 5 Terminal Meter Socket and Bypass LINE SKETCH 22 Meter Installation for 400 Amperes, 3 Phase, 4 Wire, 120/208 or 277/480 Volt Service With 7 Terminal Meter Socket and Bypass LINE N A B C LINE BY-PASS LEVER in by-passing position 5th TERMINAL 7th TERMINAL NEUTRAL BAR Service neutral bonded to box NEUTRAL BAR LOAD N A B C 1. Meter socket must have a single handle lever operated bypass, locking jaws and flash shield. 2. Drain hole in the bottom of the meter socket must be punched out. 3. 5th terminal to be located at the 6 o’clock position. 4.Taps to 5th terminal to be installed by contractor with a #12 solid copper or #10 solid aluminum AWG conductor depending on service conductor, insulated in a white jacket. Refer to Sketch 21 Notes 130 131
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IMPORTANT INFORMATION FOR BUILDERS
Page 3 and 4:
NSTAR ELECTRIC DISTRICTS North Dist
Page 5 and 6:
TABLE OF CONTENTS 205. Relocation o
Page 7 and 8:
TABLE OF CONTENTS 712. Meter Access
Page 9 and 10:
FREQUENTLY ASKED QUESTIONS FREQUENT
Page 11 and 12:
ARTICLE 100-104 ARTICLE 100 GENERAL
Page 13 and 14:
ARTICLE 110-111 110. Diversion of E
Page 15 and 16: CITIES AND TOWNS SERVED City/Town C
Page 17 and 18: ARTICLE 203-205 203. Availability o
Page 19 and 20: ARTICLE 303 Installations for custo
Page 21 and 22: ARTICLE 305 ARTICLE 305 (non-parall
Page 23 and 24: ARTICLE 403 ARTICLE 403 Where it is
Page 25 and 26: ARTICLE 405-406 46 B. Poles must me
Page 27 and 28: ARTICLE 413 ARTICLE 413 50 For the
Page 29 and 30: ARTICLE 415-417 UNDERGROUND SECONDA
Page 31 and 32: ARTICLE 422 ARTICLE 423 agreement.
Page 33 and 34: ARTICLE 428 terminal box to provide
Page 35 and 36: ARTICLE 432 66 For the South and Ca
Page 37 and 38: ARTICLE 507-511 ARTICLE 512 507. Un
Page 39 and 40: ARTICLE 606-607 ARTICLE 608-701 as
Page 41 and 42: ARTICLE 704 ARTICLE 705 NSTAR emplo
Page 43 and 44: ARTICLE 709-711 709. Moving or Remo
Page 45 and 46: ARTICLE 715 86 3. Three phase, 3 wi
Page 47 and 48: ARTICLE 722 722. Pad-Mount Metering
Page 49 and 50: ARTICLE 802 suitability of the prop
Page 51 and 52: ARTICLE 802 TABLE 2 Three Phase Mot
Page 53 and 54: ARTICLE 902-906 ARTICLE 907-909 902
Page 55 and 56: SKETCH 1 SKETCH 2 Standby Generator
Page 57 and 58: SKETCH 5 SKETCH 5 (NOTES) Overhead
Page 59 and 60: SKETCH 6B SKETCH 6B (NOTES) Typical
Page 61 and 62: SKETCH 9 SKETCH 10 800-1000 Ampere
Page 63 and 64: SKETCH 13 Minimum Clearances For Al
Page 65: SKETCH 17 Meter Installation for 20
Page 69 and 70: SKETCH 25 Mounting Provisions and D
Page 71 and 72: APPENDIX B GENERAL LAWS APPENDIX B
Page 73 and 74: GENERAL LAWS as are suited to work
Page 75 and 76: GENERAL LAWS dollars or by imprison
Page 77 and 78: GENERAL LAWS In no event shall any
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