Airports Authority Of India Tender

Design, Manufacturing and Supply of illuminated taxiway guidance signages of various sizes made of anodized 2 mm (nominal) thick extruded aluminum profile frame with suitable stiffening supports for structural rigidity, 1.5 mm thick aluminum back cover, 4 mm thick poly carbonate sheet with glare free face, supporting legs, breakable coupling etc. The letters and symbols shall be internally pasted/ screen printed with required coloring. The sign boards shall be uniformly internally illuminated with required number of LEDs strips to achieve required illumination level, alongwith drivers, internal control circuit etc and shall operate without any flickering when operated on input source of 2.8 Amps. to 6.6 amps. series current, and having suitable arrangement for water tightness and locking arrangement etc. complete as required. The taxiway guidance signages shall be as per ICAO and confirming to technical specifications. (Legends shall be as approved by Engineer‐in‐charge).

Installation of illuminated taxiway guidance signages of various sizes by providing and laying in position cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) of nominal size 300 mm x 300 mm x 500 mm for each leg and total base of 150 mm thick cement concrete all around the board as per attached drawing including excavation, finishing, leveling of ground, interconnection with isolating transformer, crimping/ jointing of plug & receptacles, laying of secondary leads, connections, earthing, testing and commissioning etc. complete as per site conditions. (Measurement will be made as per Cement Concrete area (sqm ) of the surface around the sign board) (Isolating transformer, plug & receptacles, secondary cable, pipe shall be supplied by AAI)

Supply of M.S. Isolation Transformer Housing Box, water tight rectangular type, metal container of size 400 MM Height x 330mm Width x 330mm Length. All sides including bottom except top surface shall be made of 6mm thick MS sheet & Top Surface shall be made of 10mm MS Sheet with a round opening of dia 220mm and 6 nos. M10 tapped hole with S. S. inserts on 260mm PCD to receive cover plate and bolts suitable to receive a cover plate on the top, The cover plate shall be made up of MS Plate of 8mm thickness with rubber gasket and 6 nos. M10 S.S. Bolts. All joints shall be continously welded and shall have a clear holes on three side at surface centre suitably above bottom surface to receive of 40 mm dia (outer dia) HDPE/G. I. pipe and including check nuts as required. The box should have One / two S.S. earth bolts of M10 x 40 mm tapped inside near the hole but away from the hole centre and having a drain hole at the bottom centre suitably tapped to receive 15 mm dia, "B" class GI pipe and 6 nos. M10 tapped hole at the hole centre 260 mm to receive cover plate and bolts as required as per the drawings. (a) Two Hole Type