SPECIAL REPAIRS TO BIRD PROOFING AND CERTAIN OTHER WORKS IN HANGAR AND SPL REPAIR TO EXTERNAL SERVICES FOR PAVEMENT CONTROLLER HUTS AT AFS TAMBARAM

(b) Multifunctional digital panel meter with LCD display flush mounting type of size 96X96 mm, accuracy class 1, suitable for CTs with secondary current 5A having provision of display parameters such as voltage, Amp, Frequency, Power factor, KW, KV etc. (Qty - 01 No) (c) Current transformer of ratio 400 / 5 amps, current rating primary up to 400 amps and secondary 5 amps , accuracy class 1, VA burden 10 VA including necessary wiring using PVC insulated copper conductor cable of appropriate size as per standard engineering practice.(Qty - 1 No Set of three) (d) LED Phase Indicator Lamp (Qty - 01 Set of Three).

Taking out unserviceable underground LT/HT cable of any size complete all as specified and directed by the Engineer-in-Charge. Note : Necessary excavation, earth work shall be measured & paid separately under relevant items.

Supply, Laying, connecting, testing XLPE cable underground PVC insulated and over all sheathed with aluminium conductor heavy duty 1100 volts grade laid in trenches, floors, ducts passing through pipe for road crossing etc complete all as directed by Engr-in-Charge of following sizes :- Note : Necessary excavation, earth work, brick protection sand cushioning and GI pipe etc shall be measured & paid separately under relevant items.

Cross sectional area 35 Sqmm 3 ½ core

Cross sectional area 50 Sqmm 3 ½ core

Excavation in trenches n.exc 1.5 mtr wide and n.exc 1.5 mtr deep in loose / soft soil and getting out for under ground cable / erection of poles, stays etc complete all as specified and directed by the Engineer-in-Charge.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25 cm complete all as specified and directed by the Engineer-in-Charge.

Removing of excavated material n, exc 50 mtr away and depositing where directed at a level n, exc 1.5 mtr above the starting point complete all as specified and directed by the Engineer-in-Charge.

Supply and fix Un-reinforced precast concrete cable cover ,class LV,type-1 size 300X180X40mm laid in the trenches complete all as specified and directed by the Engineer-in-Charge.

M&L for sand cushioning for cable with river washed sand and punning to provide required cover as per SSR Part –I complete all as specified and directed by the Engineer-in-Charge. Note: Punned thickness of sand layer shall be measured and paid to the contractor.

M&L for Plain Cement Concrete 1:4:8 type, nominal mix D-2 using 40mm graded aggregate, mechanically crushed stone for mass filling in pole, pit and foundation etc including provision of necessary form work to achieve fair finished surfaces complete all as specified and directed by the Engineer-in-Charge.

M&L for Plain Cement Concrete 1:3:6 type C-1 nominal mix using 20mm graded crushed stone aggregate as in pole, pole foundation, coping, stay pits etc including provision of necessary form work to achieve fair finishes surfaces, complete all as specified and directed by the Engineer-in-Charge.

S&F in repairs 1mmPVC coated diamond link pattern mesh/ expanded metal sheet / mesh of dia 2.0mm galvanised steel wire and mesh aperture 30-35mm (Tolerence+/- 3.34/3.88mm) and weight not exceeding 4.0 Kg per square metre cut to length, bent to shape as required and tying with and including annealed mild steel wire not less than 0.9mm dia or fixing with galvanised steel staples supplied and fixed upto height of 15meter approximately from ground level including hanging with 10mm thick plastic rope or nylon rope complete to wood or steel members complete all as specified and directed by Engineer-in-Charge. Note:- Th

All as per Serial item No.27 here in before but except material fixing with annealed mild steel wire not less than 0.9mm fixing upto 15m height approx from GL hanging with 10mm thick plastic / GI/PVC/ Nylon wire complete to wood or steel members complete all as specified and directed by Engineer-in-Charge. Note:- The work shall be executed upto 15 m height from GL. The contractor should make his own arrangement for mechanical equipment like boom lift/crane and/or steel tubular scaffolding for tying the bird proofing net. Contractor should take care of all necessary precautionary safety measures while execution of the work. Old retrieved material which is in good condition obtained from Sl.item No.27 shall be reused here. The rate quoted by the tenderer shall deemed to be inclusive of the same and no claim whatsoever on this account is admissible.

Material and Labour for Mild Steel framed structure roof trusses (framed), trussed, purlins, crane gantries and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats of Grade Fe 410 -W (Gde- E- 250) quality- A etc complete all as specified and directed by the Engineer-in-Charge.

Supply and fix of aluminium strip of size 25mm x 3 mm with saddles/insulaters and fixing screws for roof conductors and down conductors above ground complete all as specified and as directed by Engineer-in-Charge.

Supply and fix PVC earthing strip DMC insulator for electrical installation surface treatment colour coated, tensile strength 25 Mpa including washer nut and bolts etc