REPLACEMENT OF CFL LIGHTS WITH LED LIGHTS AND REPLACEMENT OF LT PANELS AND SPECIAL REPAIRS TO EARTHING INFRASTRUCTURE FOR SMQs/OMQs AND OTM BUILDINGS AT AIR FORCE STATION SALUA UNDER GE (AF) KALAIKUNDA

Amount

S&F recess mounting luminaire (PANEL LIGHTING) with high performance LEDs, suitable for mounting with Armstrong/Grid ceiling Fixture size: (LxW) in (595x595) mm LED 36 Watt with CRCA powder coated housing (white after phosphochromate treatment) High efficiency long life LED package in integral module with lumen efficacy of >150 lm/W and viewing angle of 120° to ensure better uniformity, electronic LED driver (SMPS based constant current supply) with Output Short-circuit protection, Surge protection & other reliability test as per IS:15885 Part 2/Sec 13. LED of Make Osram; Everlight; Philips; Nicha; Cree; Samsung, operational voltage of 170 volts to 270 volts, frequency of 50 Hz, lumen output of minimum 4350, protection grade IP 20, CRI greater than or equal to 80%, THD below or less than 20%, CW available CCT of 6500K, power factor of minimum 0.95 , life span of minimum 50000 working hours complete fitting including connecting with PVC insulated multistranded copper flexible cable 1.0 sqmm three core, including taking down old unserviceable complete all as specified & directed:MAKE :- Wipro / Phillips/GE/Havells

Material & labour for earthing complete with copper earth plate electrode 600 mm x 600 mm x 3.15 mm thick burried directly in ground (Earth pit not less than 3.0 mtr deep below ground level) with top edge of the plate not less than 2.4 mtr below ground level connected to copper strip 20 x 3.15 mm as earth lead by brass nut bolts washer including brazing the copper strip with copper plate as shown in electrical plate No 3 connected to earth test point including necessary excavation for earth pit in hard dense soil, rocky / disintergate rock, filling charcoal and salt around the plate in layers , filling the pit with low resistivity agriculture soil free from stones, to be bring from out side defence land and mixed with Bentonite , (4 bags of 25 Kg each ), construction of inspection pit ( earth pit chamber) of brick work of size 600 x 600 x 600 mm with PCC copping of 1 :1.5: 3, 12.5 mm aggregate A1 with MS sheet 2.8 mm plate cover on frame of angle iron of size 40 x 40 x 5 mm with , wire mess, funnel, test point, 40 mm dia GI protection pipe light grade and 20 mm GI peforated pipe for watering etc complete and testing on completion. The electrode and lead shall be of copper all as specified and directed by Engr-in-charge (Copper strip upto 7.5 RM will be included in the item rate and copper strip beyond 7.5 RM will be measured seperately (Note : (i) Contractor shall use low reisistivity fresh agriculture soil , mixed with Bentonite, 04 bags (25 Kg of each bag) for refilling the pit to achive the desired resistance. (ii) copper strip will be laid below 60 cm from ground level and connected to test point through plinth protection (iii) Necessary cost of repair to plinth protection as per existing specification and connected plate and earth continuity conductor by providing 2 x brass nuts bolts and brazing of joints, bringing argiculture soil from out side defence land and cost of 04 x Bags of bentonite deemed to be included in the item rate. (iv) Contractor has to clear the side and disposed off the excavated soil from pit on completion of work. (v) Contractor has to submit test report of earthing after completing the earthing. (vi) Bentonite clay should be Conf to IS 6186: 1986. (vii) The cost of Copper strip of size 20X3.15 mm from top of earth plate upto 7.5 meter above ground level is deemed to be included in the unit rate of above item.and copper strip beyond 7.5 RM will be measured seperately. (viii). All the joints in copper strip and connection with Earth Plate to be welded through brazing and in addition by proving brass nut bolt and washer are deemed to be included in the unit rate. (viiii) Cost of brazing / welding and nut bolts are deemed to be included in the unit rate. (ix) Cost includes removal of excavated soil upto a distance of 100 mtrs.

Supply and fixing copper strip of size 20 x 3.15 mm as earth continuity conductor or main earthing lead fixed on "V" type porcelain insulator, 4 BM, heavy duty ( ceramic bus bar support insulator off white colour of suitable for mounting strip of 20 mm wide x 3.15 min thick) saddle to wall, buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 20 x 3.15 mm copper strip brazing to each joints and connected with by providing brass nut bolts and washer all as specified and directed by Engr in Charge. Note : Insulators shall be provided on every 50 cm. (Minimum 2 x insulators to be provided in every 1 x metre of strip and rate of the same deemed to included in quoated rates)

Supply,designing ,install, testing & commission 3 phase and neutral, 415 volts outdoor type, CPRI type tested having certification of IEC-61439 , factory made , dust and vermin proof, cubical type LT panel of size 1.50m x 1.50m x 0.75m, with canopy fabricated from 3.00 mm thick CRCA sheet (outer & load bearing) with angle iron frame of 40 x 40 x 5 mm, double door, front and back openable type, double door system, hinged opening, rubber lining, locking arrangement, with anticorrosive coating and finally epoxy polyester power coating with pure polyster Siemens grey structural RAL-7032 shade, protection class IP-66 fully compartmentalize design with 4 Nos of bus bar rated 600 Amps made of copper ETP grade pre-wired with suitable size of copper strip/copper wire with colour code for connecting out going MCCB/MCB's, including suitable aluminium earth strips conforming to IS with danger notice plate, necessary cable glands, cable connection with proper lugs, making electrical connection and circuit wiring for street light auto ON/OFF control timer by using desired electrical parameters PCC foundation and pedestal for fixing pillar feeder box/LT Panel with PCC 1:3:6, 15 cm thick in foundation, brick (Fly ash) / PCC block work in CM 1:6, rendering 1:6 on exposed surface and 100 mm thick PCC 1:3:6 type C1 using 20 mm graded stone aggregate as in padding on top and grounting bolts etc for panel. The platform shall be of 450 mm height above ground level all as specified with supply and fixing the following accessories including taking out the existing one :

All as per BOQ Item No 04.00 here-in-before but of size 1.00m x 0.75m x 0.40m LT bus bar feeder pillar box with canopy but wth 4 Nos of bus bar rated 400 Amps made of Aluminium(HINDALCO) with the following incoming and outgoing accessories :- (A) Incoming MCCB 160 Amps rating, TP ,415 V, AC, 50 HZ, adjustable thermal anf fixed magnetic setting Ics-100 % Icu , service breaking capacity 16 KA --- 01 Nos. (B) Outgoing (b) MCCB 100 Amps rating, FP ,415 V, AC, 50 HZ, adjustable thermal anf fixed magnetic setting Ics-100 % Icu , service breaking capacity 16 KA --- 2 Nos. Note:- (i) All MCCB/MCB should be of approved Make (ii) Drawing of LT panel and make of items shall be get approved from GE before ordering the panel. (iii) Cost of lugs for cable and cable gland etc also included in unit rate of panel. (iv) Rotary handle to be provided for all MCCB for control and operation of MCCB. (vi) The rating of copper bus bar to out going MCCB / MCB`s shall not be less than 1.5 times the rated current of individual out going feeders/ MCCB. (vii) Independent Amper meter with CTs to be provided for each out going feeder. (viii) Spreader terminals and Phase barriers to be provided with all MCCB`s (ix) Rate of panel include refixing of all cables in panel which are dismantle & taking out from old unserviceable panel.

Guru Charan Mahata

I.S.ENTERPRISE

Neetu Construction

NATIONAL CONSTRUCTION CO

Lotas Engineers

MS R.K.ENTERPRISE