HANDBOOK REQUIREMENTS - Central Maine Power Company

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503. ATTACHMENT METHODS Service entrance cable or conduit shall be securely fastened to the building with suitable rustproof clips and fasteners. Expansion shields or their equivalent shall be used in brick, concrete or other masonry construction. Cable entrances into buildings shall be not less than six inches above final grade, adequately protected if exposed to physical damage, and weatherproofed at the point of building entrance. All conduit fittings, on the line side of the meter, which contain service entrance conductors shall be placed so as to be fully exposed to view. Fittings shall be made watertight unless installed at the bottom of a vertical run, in which case they shall be raintight and designed to drain. They shall be placed not less than six inches above final grade. 504. SERVICE ENTRANCE CONDUIT Aluminum conduit shall not be used under the following conditions: A. When bare copper conductors are used. B. For mast type construction. C. In contact with the earth. Rigid non-metallic sunlight resistant conduit recognized for use above ground may be used as permitted by NEC Article 352, with the following added restrictions: A. It shall not be used in mast type services. (See Paragraph 505, below.) B. Only schedule 80 may be used at locations which are subject to physical damage (per the NEC). 37 37
38 505. SERVICE MAST CONSTRUCTION Unless otherwise approved by the <strong>Company</strong>, masts shall be constructed of rigid steel conduit or steel intermediate metal conduit (IMC) with an inside diameter of no less than 2 inches. Refer to Illustration No. 3 in Section XII. Aluminum conduit, rigid non-metallic conduit or electrical metallic tubing (EMT) shall not be used for masts. Because the mast is grounded through the meter socket hub, it should not be bonded to the neutral (grounded conductor) at the top end. 38
Page 1: HANDBOOK OF REQUIREMENTS FOR ELECTR
Page 4 and 5: To contact us for information or as
Page 6 and 7: CENTRAL MAINE POWER TOWNS SERVED TO
Page 8 and 9: TABLE OF CONTENTS I. INTRODUCTION 1
Page 10 and 11: 501. Conductor Identification 502.
Page 12 and 13: XI. UTILIZATION EQUIPMENT SPECIFICA
Page 14: 25. [364-9 & 364-10] Large 9’ x 9
Page 17 and 18: 2 102. REVISIONS OF REQUIREMENTS Th
Page 19 and 20: 4 II. General Requirements 200. APP
Page 21 and 22: 6 Dwelling Application is used when
Page 23 and 24: 8 be any duty or obligation on the
Page 25 and 26: 10 214. CUSTOMER'S RESPONSIBILITY 1
Page 27 and 28: 12 be provided with suitable automa
Page 29 and 30: 14 219. CUSTOMER CONSTRUCTED/OWNED
Page 31 and 32: 16 16 • Provide the Company a pla
Page 33 and 34: 18 III. STANDARD CHARACTERISTICS 30
Page 35 and 36: 20 20 service (whenever possible) f
Page 37 and 38: 22 22 304. TRANSFORMER VAULTS AND M
Page 39 and 40: 24 recommended to provide adequate
Page 41 and 42: 26 Refer to paragraph 219 for the r
Page 43 and 44: 28 Company requirements. Following
Page 45 and 46: 30 conductor to the neutral. Meteri
Page 47 and 48: 32 ith outlets used as mobile home
Page 49 and 50: 34 34 protection shall be installed
Page 51: 36 36 conductors must extend at lea
Page 55 and 56: 40 40 of sufficient size to readily
Page 57 and 58: 42 42 double-throw switch or other
Page 59 and 60: 44 VII. GROUNDING AND BONDING 700.
Page 61 and 62: 46 2. Metal frame of building or st
Page 63 and 64: 48 electrode/conductor or metallic
Page 65 and 66: 50 building or structure grounding
Page 67 and 68: 52 test switches and control cable
Page 69 and 70: 54 54 804. POLE MOUNTED METERS Pole
Page 71 and 72: 56 56 identify the area served by e
Page 73 and 74: 58 58 “connected to the grounded
Page 75 and 76: 60 by-pass requirements and the res
Page 77 and 78: 62 Meter mounting devices shall be
Page 79 and 80: 64 64 not to interfere with the ope
Page 81 and 82: 66 66 The mounting of Company meter
Page 83 and 84: 68 68 901. CUSTOMER RESPONSIBILITY
Page 85 and 86: 70 acceptable to mount the riser(s)
Page 87 and 88: 72 72 The Company will make all con
Page 89 and 90: 74 other distribution system exists
Page 91 and 92: 76 76 In cases not meeting the prec
Page 93 and 94: 78 78 Primary service requiring hig
Page 95 and 96: 80 80 Section 321 B. During back-fi
Page 97 and 98: 82 82 Customers electing to install
Page 99 and 100: 84 84 determined (in consultation w
Page 101 and 102: 86 service only if it is built to C
Page 103 and 104:
88 X. SERVICE FROM UNDERGROUND MAIN
Page 105 and 106:
90 XI. UTILIZATION EQUIPMENT SPECIF
Page 107 and 108:
92 B. Overload protective devices s
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HANDBOOK REQUIREMENTS - Central Maine Power Company

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