WBPWD/EE-II/CKHED/NIT-55/19-20

Amount

Supply, Installation, Testing & Commissioning of 20 Mtrs. highmast system with its accessories. High Mast General Arrangement Drawing to be submit along with Bid

(i) Mast shaft shall be in 2 sections, hot dip galvanized and suitable for wind velocity as per IS 875 Part 3

(ii) Accessories for highmasts include head frame, steel rope 6 mm dia (approved make), (7/19 construction), double drum winch, galvanized lantern carriage suitable for 14 to 16 nos. luminaries 400 to 500 Watt LED flood fixtures asymetrical arrangement & 2 nos LED aviation obstruction light as per the site condition as directed during execution and necessary control gear boxes and lighting finial. The mast shall be designed for wind speed 50 m/s (as per IS 875). Structural design should be submited along with the technical bid by all the bidders and it also to be approved from JU/IIEST/IIT for L1 bidder. (If any modifications are desired by the institution then it should be incorporated in the structural design)

(iii) The highmast shall have an integrated power tool installed inside the base compartment of the mast

(iv) The highmast shall be provided with aviation obstructing lighting fitting with 2 No. LED aviation obstructing lamp

(v) Necessary wiring materials of suitable capacity for giving connections to luminaries. Two nos. circuits will be provided as directed by E.I.C.

(vi) Fabrication, Supply and Erection of suitable feeder pillar box fabricated with 16 SWG CRCA sheet with powder coated painting duly providing 1 No. 63 Amp TPN MCB as incomer, 100A Cu busbar, 1 No. 63 Amp 3 pole MCB for motor protection, 1 No. ML 6 contactor, 20 Amp digital timer,63 Amp 5 pin metal clad socket. MCBs & metal clad sockets and contactors & timer. Suitable capacity of 3 pole contactor with interlocking facility for motor operation and necessary push button are to be provided

(vii) The average illumination level shall be at 300 to 315 lux at the ground level.

(viii) Civil Foundation drawing to be submit along with technical bid document and it should be approved from JU/IIEST/IIT for L1 bidder before execution ***Bidder must download the soil investigation report (prepared by civil wing PWD NRSMC&H) for individual locations bidder need to design the civil structural calculation and prepare the foundation drawing for the each high mast seperately.*** Cement, steel and stone required for casting of suitable shallow foundation with M-25 concrete for the highmast, necessary foundation bolts, manufactured from special steel along with nuts, washers, anchor plates, templates.

(ix) The highmast shall be provided with 2 Nos. of independent earthing with GI pipe as per IS 3043-1987 and giving earth connections with 25x3mm GI Flat.

Make- Skipper/Utkarsh/Transrail/Surya

Supply, Installation, Testing & Commissioning of 400 to 500 Watt LED flood light luminaires made up of pressure die cast aluminium housing with toughened glass and high power LED chip and secondery lenses with IP 66 & IK >= 07 protection, system efficacy >= 120 lumen/watt, THD < 10%, surge protection : 4 KV internal and 10 KV external, silicon filled BIS registered. (Make- Philips/Crompton/Havells/Surya).Simulation design (LLF 0.85) should be submitted having average lux 300 to 315 lux with uniformity(min/avg) >0.6 and min/max >0.4 at ground level of existing play ground at NRS MCH.Total system lumen should be >= 28,80,000 lumen. If nos. of fittings will be required more than 48 nos. for achieving avg. lux level with uniformity as desired, then extra fittings should be provided without any extra cost. Detail test reports are also to be submitted after execution of work and it should be alined with the simulation design.

Supply, installation, testing & commissioning of Low intensity LED type aviation obstruction luminaires to be mounted on high masts.

Rate should be quoted incl. of all taxes and cess.

Defect Liability period : 3 year

COSMOS CONSTRUCTION

LIGHTING SOLUTION

CHAKRABORTY ENTERPRISE

RELIABLE CONSTRUCTION

SURYA ROSHNI LIMITED

C. CHOWDHURY AND CO

T.D.K. ENTERPRISE