12271971 Regular Meeting - Laserfiche WebLink

Home Browse Search

PAGE 5 SECTION 5. RULES 5.0 That the rules and regulations of the National Board of Fire Underwriters embodied in its "National Electric Code" published in 1971 and such subsequent codes, amendments and supplements as said adopted as the rules and regulations to govern and to be obBerved in all Electric wiring, and in all construction, installation, operation, and maintenance of electric wiring, apparatus and fix- tures except as otherwise specifically provided in this ordinance, and the same hereby made a part of this ordinance as if copies herein in full. I 5.1 That the term "commercial building" will apply to all public buildings, grain elevators, auditoriums, laundries, churches, theaters, moving picture hO\lses, or any other public gathering place, machine shop, buildings used for the storage of readily inflammable materials, filling statin~s, and lumber sheds located within the City Limits of the City of San Marcos, Texas. 5.2 That all electrical wiring for light, heat, and/or power purposes here- after to be installed in commercial buildings situated in the City of San Marcos, Texas, shall in all cases be contained and encased in a rigid metallic conduit, electrical metallic tubing, flexible metal conduit or approved P.V.C. conduit and fitting. 5.3 All electrical wiring within the Number One Fire Zone shall be installed in rigid metallic conduit, metal tubing, or flexible metal conduit. 5.4 That all conductors in commercial buildings installed for light, heat and power shall be of such size that the voltage drop under load in the furtherst outlet shall not exceed two per cent o~the voltage supplies in the service entrance. No branch circuit or switch shall be installed with copper wire smaller than #12 B&S Gauge and no #12 B&S Gauge branch circuit shall be protected by fuse or breaker of greater capacity than twenty Amperes. No more than six out- lets shall be installed on anyone circuit. I 5.5 An outside weatherproof main shall be installed for all commercial buildings. The service wires for commercial buildings will be in'conduit. No service conduit from point of service contact of buildings to meter connections shall be concealed. Junctions or pull boxes shall not be installed in service conduits. Provided further that service outlets shall be installed as directed by a representative of the utility corporation providing such service, and only one point of contact shall be made on any building. Such point of contact shall not be less than ten feet above ground leve. 5.6 That all commercial cabinet and conduit installations shall be electric- ally grounded with a ground wire in conduit. This wire (copper) will be not less than number 6 B&S and connected to approved ground rod 1/2 inch in diameter and six feet long. Said ground wire shall be attached to ground rod with approved clamps. If the driving of a ground rod is not pessible grounding means will comply with NEe. Under no circumstances shall the electric service be connected to the water service if the water service is partly installed in plastic pipe or other than metal. 5.7 That all wiring for motors in any building within the City of San Marcos where the motor is one-third horsepower or more shall in all cases be contained and encased in metal conduit, tubing, or molding. Greenfield flexible conduit not over thirty-six inches in length may be used to connect motor to terminal box. All motors in excess of three horsepower will be started with appropriate starting mechanism. I 5.8 That all electric signs shall have independent feed lines run in conduit from the point of service and a single circuit shall not carry more than fifteen Amperes. Application for sign permits shall contain plans and specifications, arrangement of transformers, light ,circuits, and all protection devices for safe, proper operation of signs. A plot plan shall accompany the application showing location of the sign on the property. 5.9 That no main service for residential use shall be smaller than #6 B&S Gauge wire (copper). SEUentrance cable may be used in lieu of conduit. No service entrance from point of service contact of building to meter connection shall be concealed. Junctions or pull boxes shall not be installed in the service connection. Servi~e outlets shall be installed as directed, by a representative of