Regulating the Erection, Construction, Repair, Alteration, Location of all Electric Signs

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having an arc of rotation of less than sixty (60) degrees rotation must be accomplished through the use of slip rings. (L) SAFETY pROVISIONS. Facilities for proper protection of the public must be provided during the erection or maintenance of all signs. SECTION 12. WIREING UNDER 60o voms: (A) WIRE SIZE. Wire shall be of approved type not less than No. 14 B & S gauge in size. Special permission may be granted to use wire smaller than No. 14 B & S gauge in the installation of moving flashing letters. (B) CONNECTION. Where signs are connected to previously installed mains, the contractor connecting the sign will be held responsible for condition of these mains. Connections shall not be made unless the mains referred to are of sufficient capacity, in good condition and in compliance with the rules. Signs may be connected to interior lighting circuits (except circuits feeding show windows) provided the combined load on the circuit does not exceed fifteen(15) amperes. All signs shall be permanently and effectively grounded to the conduit system. All outside wiring for signs shall be installed in rigid conduit; pro - vided, however, for swing signs the conduit shall terminate at the level of the crane within three (3) feet of the sign and flexible conduit or other ap- proved means used to complete the connection. The flexible conduit shall have a drip loop and must be plastic covered. Circuits shall be so arranged that the load connected to them shall in no case be such as to place more than fifteen (15) amperes on the branch circuit over - current protective device. In addition to the current limitation of fifteen (15) amperes branch cir- cuits supplying incandescent lighting of attraction board signs shall be limited to sixteen (16) sockets. However, for lighting of silhouette letters on at- traction board signs, not more than forty (40) sockets on a branch lighting - 11 -