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to, house electrical equipment, telephone equipment, and <br />television equipment which serve the occupants of the entire <br />building. There shallbe —no storage of any kind permitted in <br />this room, <br />(4) Service disconnecting switches must be located in a convenient <br />and readily accessible location inside the building when a <br />meter room is not required. Service disconnecting switches <br />and other related equipment located in enclosed or semi - <br />enclosed porches not exposed to the weather, shall be <br />considered as being located inside the building;Exceptions <br />may be allowed by the electrical inspector on existing <br />installations if strict compliance is deemed by him <br />impractical. <br />(5) A service disconnect shall be located at the nearest point of <br />service entry (conduit not to exceed 20 feet inside building) <br />and shall not be installed in bathrooms, bedrooms, clothes <br />closets, or kitchens cabinets. <br />6) All service equipment of 225 amps or less shall be equipped <br />with a single main disconnect. <br />(T) The grounding electrode conductors shall be a minimum wire <br />size #4 cooper. There shall be a jumper between the hot and <br />cold water pipes above the water heater and before the shutoff <br />valves. The following sharr-also be required: <br />a) All water pipe connections shall be visible. <br />(b) Teardrop or acorn type clamps shall be used at the ground <br />--0d. <br />(c)All clamps shall be of compatible materials (ex. brass or <br />copper). <br />y The ground rod shall be of copper or copper -clad. Note: <br />Galvanized rods may be used on construction temporary <br />service, <br />Section 401.23 Commercial construction <br />The sub -feed to each unit space must provide at least 3 wire, <br />single-phase current, or 4 -wire, 3-phase of 100 ampere capacity. <br />The conduit shall be a minimum 1 1/2 -inch trade size. <br />Section 401.24 General requirements <br />All interior and/or exterior wiring for heat, light, and power <br />in all commercial buildings, schools, churches, theatres, <br />warehouses, and similar locations shall utilize'an approved <br />raceway system. In multifamily residential projects, a <br />(1) <br />11 <br />SmeadSoft Reprint Date: Tuesday, August 20, 2013 - 12:04:52 - OfficialDocuments:610, Attachment Id 0, Page 8 <br />