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<br />S P E C I F I CAT ION S <br /> <br />INSTALLATION OF INTERNALLY LIGHTED TAXI GUIDANCE SIG.NSJ <br />WITH BASE MOUNTING . .0:-'. 0 <br /> <br />The work under this section shall conform to the requirements of <br />Section l-127, Install ati on of Internally Lighted Taxi Guidance Signs <br />with Stake Mounting. of the FAA Standards for Specifying Construction <br />of Airports, with the following modifications and additions: <br /> <br />l-127-2.2...............Taxi Guidance Signs <br /> <br />(a) The Taxi guidance sign shall conform to the requirement of <br />Specification l-858, "Specification for Internally lighted Airport Taxi <br />Guidance Sign". Each unit shall be furnished complete with the <br />specified panels, mounting assemblies, breakable couplings, transformer <br />(s) and metal stakes. The taxi guidance signs shall be Type l-858Y and <br />l-858R, with curved face. <br /> <br />(b) <br /> <br />(c) <br />the base. <br /> <br />(d) After installation, the voltage to the lamps shall be <br />checked with a "RMS" or "Ironvane" volt meter and set to manufacturers <br />requi rements. <br /> <br />Signs installed shall be size 1, style 2, class 2. <br /> <br />Each module shall have a steel cable tether securing it to <br /> <br />127-3.5................Assembling the Unit <br /> <br />The taxi guidance sign shall be assembled in accordance with the <br />manufacturer I s i nsta llati on i nstructi ons. The transformer secondary <br />shall be connected to the lamp lead by means of the disconnecting plug <br />and receptacle provided the unit, and this joint shall not be taped. A <br />lamp, or lamps of the proper rating shall be installed in the fixture. <br />The distance from the finished grade to the top of the sign shall be as <br />indicated on the plans but in no event shall be less than 25 inches nor <br />more than 32 inches. <br /> <br />.(a) A frangible coupling shall be used to attach each stem to the <br />base plate flange or base cover. Anti-sieze compound shall be used on <br />all threads. . <br /> <br />127-5.1. <br /> <br />Payment ~all be made at the contract unit price for each complete <br />taxi guidance sign of like size installed in place by the Contractor <br />and accepted by the Engineer. This price shall be full compensation <br />for furnishing all materials for all preparation, assembly, and <br />.installation of these materials, and for all labor, equipment, tools <br />and incidentals necessary to complete this item. <br />