CABLE TRAY SUPPORT WORK FOR LAYING OF POWER/SIGNAL/CONTROL CABLES AT BIJWASAN INSTALLATION

1. . . . SFE STR STL MANUAL "Supply, fabrication and erection in position; bolted and/or welded structural steel works at all levels; including all built-up sections /compound sections made out of rolled sections and / or plates in trusses; rafters; purlins; wind ties; columns; portals; platforms; staircases; (excluding chequered plates, swing ladders, foundation bolts and gratings) ladders; stoppers; brackets sag rods; supports for equipment and accessories; hand railings posts cutting to required size as per approved drawings; straightening if required bolting/ welding of joints (including sealing the joints of the box sections with continuous welding wherever specified) finishing edges by grinding; fixing in line and level with temporary staging and removal of same after erection; grouting with ordinary grout or non-shrink grout as specified; including preparation of detailed fabrication drawings, Cost of painting as specified below, Complete in all respect as directed by Engineer-in-charge. Cost of nut bolts to be borne by contractor. NOTE: 1. All structural steel shall conform to IS-2062 & IS-808 and of SAIL/TISCO/IISCO/ JINDAL/ ESSAR/ VIZAG STEEL or equivalent make with prior approval from BPCL only. 2. The structure may be prefabricated with bolting arrangements by making necessary holes, surface preparation by manual cleaning/ wire brushing etc. and painting except final coat, which will be carried out after completion of the erection works. Min. hot works will be allowed at site. It is vendors responsibility to verify the actual measurements at site before making the bolting schedule. 3. PAINTING SPECIFICATIONS: The cost includes surface preparation by manual cleaning/wire brushing etc. Primer Coat: After surface preparation two coats surface tolerant epoxy primer @ 125microns Top Finish Coat: 2 coats of acrylic aliphatic polyurethane @ 30 microns per coat. Total DFT 225 microns minimum. The rate includes the cost of materials, consumables, labor, tools and plants, transportation, loading, unloading, machinery, safety requirements, incidental charges if any, all complete." 2. . . . GI PERF TRAY 8" "PERFORATED TYPE CABLE TRAYS WITHOUT GI COVER: Supplying and Installation of GI Perforated (Perforation not more than 17.5%) Cable Trays (Hot Dipped Galvanized: Less than 2mm thick: @45 to 50 microns; 2 mm thick and less than 5 mm thick @ 55-60 Microns; 5mm thick and above : @ 85 to 90 microns) of following sizes with accessories and GI Hardware (Coupler Plates, Nuts, Bolts, Washers) . The scope also involves Supply, Fabrication, and installation of all Cable Tray accessories like Bends, Tee Joints, Elbow Up/Down, Reducers, Fishplates, Splices, Cross Member, Connectors, etc. and no separate charges will be applicable, even though only straight Lengths are indicated below. Cable Tray Bends shall be fabricated or modified at site wherever required. Structural supports for the cable tray shall be paid under separate items of BOQ. Design of Structural supports should be submitted by vendor and approved by BPCL prior to installation. 200 X 50X2MM" 3. . . . GI PERF TRAY 12" "PERFORATED TYPE CABLE TRAYS WITHOUT GI COVER: Supplying and Installation of GI Perforated (Perforation not more than 17.5%) Cable Trays (Hot Dipped Galvanized : Less than 2mm thick : @45 to 50 microns; 2 mm thick and less than 5 mm thick @ 55-60 Microns; 5mm thick and above : @ 85 to 90 microns) of following sizes with accessories and GI Hardware (Coupler Plates, Nuts, Bolts, Washers) . The scope also involves Supply, Fabrication, and installation of all Cable Tray accessories like Bends, Tee Joints, Elbow Up/Down, Reducers, Fishplates, Splices, Cross Member, Connectors, etc. and no separate charges will be applicable, even though only straight Lengths are indicated below. Cable Tray Bends shall be fabricated or modified at site wherever required. Structural supports for the cable tray shall be paid under separate items of BOQ. Design of Structural supports should be submitted by vendor and approved by BPCL prior to installation. 300X 50X 2MM" 4. . . . TRENCH EX SAND BK450 Excavating trench 750 mm deep, 450 mm wide for laying cables, supplying and filling sand 150 mm on top and 150 mm below the cable, minimum 75mm thick Class B brick protection on the top of the cable, back filling the trench after laying cables, earth strips, etc. Finishing the top after consolidation including levelling of surplus soil from the site of ercetion as per direction of Engineer-in-charge."