Laserfiche WebLink
of highest order to assure trouble-free operation and durability of equipment. Lighting <br />fixtures constructed by labor agreeable with that employed on the project. <br /> <br />Lighting fixtures to be designed for highest relative efficiency and service. <br />Maintenance to be simple and re-lamping possible without use of special tools. <br /> <br />Provide all light-sources, lamps and other light-producing media called for and suitable <br />for specified equipment and functions. <br /> <br />2.09 LAMPS <br /> <br />Provide energy saving lamps for all fixtures as manufactured by Sylvania, Westinghouse, or <br />General Electric. 6 ~ ~O~.l-t-i~a ~. <br /> <br />2.12 BALLASTS <br /> <br />Ballast for H.I.D. fixtures shall be high power factor type (minimum 0.9). Starting <br />amount shall not exceed operating current. <br /> <br />Temperature rise of the ballasts in fixtures not to exceed 45 degrees C. on test and <br />mounted in the fixture housing and secured in place by means of bolts, screws, lock <br />washers and nuts. <br /> <br />2.13 <br /> <br /> A. <br /> <br />DISTRIBUTION SWITCttBOARD <br /> <br />Provide where indicated a NEMA 3R, non walk~indead front type, completely metal <br />enclosed, self- supporting structure independent of wall supports. It shall consist of the <br />required number of vertical sections bolted together to form one rigid switchboard 90- <br />3/4 inches high incorporating switching and protective devices of the number, ratings <br />and type noted herein or shown on the drawings with all necessary interconnections, <br />instrumentation and control wiring. Switchboard construction shall be of the universal <br />frame type using die-formed members bored and braced through the exclusive use of <br />self-tapping bolts which will not loosen during shipment. The sides, top and rear shall <br />be covered with removable screw-on plates having formed edges ail around. Front <br />plates shall be sectionalized and removable. All front plates shall be fabricated from <br />code gauge steel and shall have formed edges all around. Ventilation openings shall be <br />provided where required. All covers shall be secured by self-tapping screws. <br /> <br />The bus shall be silver plated copper rated to withstand mechanical forces exerted <br />during short circuit conditions when directly connected lo a power source having the <br />indicated available short circuit current. All connections shall be tightly bolted. <br /> <br />BASIC MATERIALS AND METHODS 16050-9 <br /> <br /> <br />