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Building Ordinance continued -10- (a) The sub -feed to each store must provide a least three -wire, single-phase current or four -wire, three-phase current of 60 ampere capacity, and the conductor size shall be not less than No. 4. The conduit raceway shall be not less than one and one-fourth inch trade size. (b) The sub -feeder to each store must be protected in the meter room with an approved indicating -type of circuit breaker or a fused switch of not less than 60 ampere capacity, capable of properly fusing No. 4 conductors to maintain switch on panel.in each store. (c) Color Code. On all multi -wire, lighting branch circuits, color code will be required in compliance with sections 210.4 and 210.5 of the National Electrical Code. Switch legs will be considered as the hot wire of the circuit, and must be of the same color as the circuit, except three and four-way travelers may be or different color. (d) Convenience outlets per circuit: Beuty parlors, etc. Barbershops Medical, dental and similar offices Store show window (for spot lights) Store show window (at floor) Display areas in retail stores School classrooms Office Space Storage Space 2 maximum 3 maximum 3 maximum 4 maximum 6 maximum 6 maximum 6 maximum 4 maximum 3 maximum (e) The maximum number of Mogul base light sockets shall not exceed three per 15 ampere circuit, or four per 20 ampere circuit, No conveniences receptacle shall be permitted on a branch circuit sup- plying Mogul base light sockets. The conductors for such circuits shall be not less that No. 12. (f) Single outlets or taps for signaling transformers, bell -ringing transformers, clocks and similar low current consuming appliances or equipment need not be counted when the location of the tap or outlet precludes the use of the tap or outlet for other purposes than for which it was installed. and receptacles: (g) Maximum number outlets per circuit for lights Light Outlets 9 8 7 6 5 4 3 2 1 0 Receptacles 0 1 1 2 2 3 3 4 4 5 Section 27. General Requirements. (a) Approved rigid metal conduit surface metal raceways or electrical -metallic tubing shall be required for light, heat and power in the wiring of apartment buildings for three families or more, in churches, schools, hotels, theaters, public buildings, commercial buildings, manufacturing establishments, private clubs, or similar occupancy. (b) It shall be unlawful for any person to place, tape around or otherwise conceal any improperly made joint on any light, heat, or power circuit. (c) The wiring for all electric ranges shall be a minimum wire capacity of 40 amperes, to an approved receptacle, for ran-