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FART 4 - EXECUTION <br /> 4. 1 INSTALLATION <br /> The entiFe systen; is to be instaileA 1 ! <br /> The entire system is to be installed in accordance with the manufacturer's written instructions, and <br /> approved construction drawings, <br /> 4,2 ELECTRICAL <br /> A. System Design <br /> 1 . The electrical system equipment shall consist of: <br /> a. Conductors and conduit from the main service transformer to the service <br /> entrance panel board . <br /> b . The service entrance panel board with appropriate individual circuit over- <br /> current protection . The panel board shall meet local and National Electrical <br /> Code ( NEC) requirements for the size of the service , AIC rating , and the type <br /> of the environment to which it will be exposed . Electrical switchgear housing <br /> will be mounted either on a galvanized angle iron , a minimum of %" thick , with <br /> hardware that is either stainless steel or hot dipped galvanized . All feeder <br /> breakers shall be bolt on type . <br /> C. Conductors and conduit for the feeder and control circuits from the service <br /> entrance panel board to the lighting control contactors. Lighting control <br /> contactors , supplied by the sports lighting manufacturer, shall be sized per <br /> local codes and the NEC according to the circuit amperage. The contactors <br /> shall be rated for lighting applications and shall be housed in a NEMA 4 <br /> enclosure. <br /> mounted in the 618GtFisal em- leswiwe- een each lighting pole 10 ' above qFade. <br /> d. Conductors and conduit for the feeder circuit from the service entrance <br /> panel board (or from the contactor panel if applicable) to the safety <br /> disconnect. <br /> e. Grounding rend uders and grounding Fnethods fGF the. <br /> 4 , The <br /> rw <br /> 4 , Lightning WeteGfion fGF individual poles as fG!!Gws (POF NFPA 780). <br /> " d-bufied vertisat <br /> lyra-undisturbed-eart#t. <br /> abeve g <br /> b . A Gepper gFounding GOndUGtOF shall be GenneGted to the top of the <br /> leGated iRside the handhole of the pole approximately 10' above <br /> a . .. _ . . .. . .__ _. ._ . <br /> e. Grounding conductors and grounding methods for the following: <br /> 1, The main service entrance panel board. (per NEC or local codes) <br /> 2, 7'he lighting contactor enclosure, (per NEC or local codes) <br /> 45 <br /> FAPublic Works\ENGINEERING DIVISION PROJECTS\1942 VB Sports Village Lighting\Admim\bid documen4G1DDENDUM NO. I TECH <br /> SPECS 1 -7- 1 i .doc <br />