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Jun 03 04 12: 06p Al Esther 952-249-0493 <br /> 28 <br /> 6. Installation . <br /> a. • There are 3 or more rows of SGR-8961 extruded aluminum channels <br /> embedded in the background, 13" inches center to center running the <br /> full length of the sign area. . <br /> b. The letters are to be attached to those channels using STD No. 33.10 <br /> snap-in clips' furnished by the sign contractor_ (Except for the <br /> letter I, all letters shall have a minimum of three clips, although <br /> more clips may be requireci,• depending upon the size of the letter. ) <br /> C. No letter attachment holes through the SGR-8961 channels and no <br /> welding to those channels will be permitted. <br /> 7. Electrical Requirements <br /> a. Letters shall be internally illuminated with neon tubing, 15MM, or <br /> 13MM using 30. MA transformers for neon illuminated letters and 60 MA <br /> . -transformers for for Argon illuminated letters. <br /> b•. The required transformers shall be mounted on the back side of the <br /> fascia directly behind the letters and housed in a sheet metal box <br /> 7" X 7" X 18". The secondary wiring (GTO-15) running from the <br /> transformer to a letter will be contained in 1/2' Liquid tight flex <br /> conduit. That conduit shall be mechanically fastened to both the <br /> transformer box and the back to the letter track, by the use of <br /> Appleton 1/2" Connectors, #ST-50 or Equal. No holes shall be <br /> drilled in the SGR-8961 channel for any purpose except for running <br /> secondary wiring from the letter to the transformer. Those holes <br /> shall be 7/8 inches in diameter in order that, at a later date, they <br /> may be plugged with .a standard snapin blank for 1/2 inch knock outs, <br /> Appleton #S50 or equal. <br /> c. All wiring pertaining .to the transformers, the SGR-8961 channels, <br /> and the letters shall be done in accordance with the latest edition <br /> Underwriters Laboratories Inc.' Standards ;for Electric Signs and <br /> bear the required U.L. Labels. The use of P-K, or similar, neon <br /> electrode receptacles will not be permitted. <br /> d. No penetrations for attachments in the finished fascia surface will <br /> be permitted under any circumstances <br />