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Regulating the Erection, Construction, Repair, Alteration, Location of all Electric Signs
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Regulating the Erection, Construction, Repair, Alteration, Location of all Electric Signs
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5/13/2014 9:58:08 AM
Creation date
5/12/2014 3:09:45 PM
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City Council - City Clerk
City Council - Document Type
Ordinances
City Counci - Date
2/23/1960
Ord-Res Number
4303-60
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The wiring system supplying the primary and secondary current to trans- <br />formers and associated equipment shall be by one of the recognized metallic <br />wiring methods. <br />(A) TRANSFORMERS. Transformers shall be of types with no exposed terminals, <br />shall be marked with the maker's name, input rating and open circuit high ten- <br />sion voltage. The marking shall be visible for inspection after installation. <br />Where the transformer is located above the ceiling of the window, the high <br />tension cable shall be in conduit and the conduit locked into the transformer <br />enclosure. <br />Except by special permission, transformers shall be of types where ratings <br />do not exceed 30 milliamperes secondary or 450 volt ampere primary, nor exceed- <br />ing 15,000 volts open circuit secondary with an additional 1000 volts for test. <br />Where special permission has been obtained for installations exceeding 30 <br />milliamperes, all tube electrodes shall be enclosed and door switches installed <br />on all enclosures which, by opening, will break the primary circuit supply to <br />the transformers and vacuum tube terminals. <br />The capacity of an overcurrent device protecting one or more transformers <br />shall be limited to 15 amperes at 125 volts. <br />(B) GAS TUBING. The tubing shall be of such a length and design as not to <br />cause a continuous overvoltage on the transformer. It shall be free from <br />contact with flammable material and for circuit voltages exceeding 7500, from <br />metal. It shall not be unduly exposed to mechanical injury. <br />The supports for the tubing where needed, shall be of the insulated type <br />of non - absorptive, non - combustible material and preferably adjustable. They <br />shall maintain the tubing not less than 1/4 inch from metal parts and this <br />spacing shall be maintained where the tubing passes through metal barriers, <br />(C) ELECTRODES. The tube terminals shall comply with one of the following; <br />1. Project within an enclosure and be separated from grounded metal by <br />- 27 - <br />
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