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16C National Electrical Code 1309.08 1309.04 REQUIREMElVr S FOR MULTIPLE RESIDENCES. All multiple residence buildings containing more than two suites shall be wired in electrical metallic tukring or rigid metal conduit for all wirings 110 to 220 volts or more. All commercial and industrial buildings shall be wired in electrical metallic tubing or rigid metal conduit for all wiring 110 to 220 volts or more. (Ord. 75-110. Passed 8-5-75. ) 1309.05 BRANCH CIRCUITS. National Electrical Code Article 210, Branch Circuits, is amended by adding Sections 210-71, 210-72 and 210-73, as follows: 210-71. Wall Switches. At least one outlet oontrolled by a wall switch shall be provided for each habitable room, kitchen, toiletroom and bathroom. A light3ng outlet shall be provided at laundry trays, boilers, furnaces and other central heating devices. Three-way switches shall be provided for all stairways to control lighting outlets illuminating such stairways. 210-72. Uxtlets Required Number of outlets required on general lighting and small appliance branch circuits of dwelling occupancies: No more than four duplex receptacle outlets per circuit of #12 Wire A. W. G. shall be installed on the required appliance branch circuits, and not more than ten duplex outlet per circuit #14 wire, A. W. G. shall be installed on the required general ]ighting branch circuits. 210-73. Alumiiiizm Conchictors. Aluminum conductors shall not be smaller than A. W. G. #6. (Ord. 75-110. Passed 8-5-75. ) 1309.06 SERVICE ENTRANCE CONDUCTORS. National Electrical Code Article 230, Section 42, is hereby added to read as follows: 230-42. Dwelling Units. Service entrance conductors shall provide a minimum of 100 ampere 3-wire service for all dwelling units. (Ord. 75-110. Passed 8-5-75. ) 1309.07 SERVICES. National Electrical Code Article 230, Section 212, is hereby added to read as follows: 230-212. Services. All new services shall be installed in rigid metal conduit, and all service shall be installed in basements or first floor level only. (Ord. 72-192. Passed 12-5-72. ) 1309.08 EMERGENCY POWER AND LIGHTING. National Electrical Code Article 700, Section 23, is hereby added to read as follows: 700-23. EmerLrency Power and Lighting (a) In multi-dwelling units with underground garages, lighting and power for ventilation shall be wired to an emergency supply source to which the load will be transferred automatically and immediately upon the failure of the normal supply. 1982 Replacement