REPAIRS AND MAINTENANCE OF DISTRIBUTION TRANSFORMERS 2 AND 4 POLE STRUCTURE, LT PANEL, AIR BREAK SWITCHES AND ALLIED WORKS INCLUDING RENEWAL OF EARTHING AT CGDHQ-10, CGPS, FUEL COMPLEX AND 3U DET UNDER GE (I) CAMPBELL BAY

Amount

Excavation in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. n exc 10 sqm on plan and n exc 1.5m in depth and getting out in any type of soil complete as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soil all as specified and directed.

Removing excavated materials (soil) not exc. 50m and depositing where directed at a level not exc 1.5m above the starting point all as specified and directed.

S&F for HDPE double wall corrugated pipes conforming to IS-14930 Part-II with IP Protection of IP-67 having outer dia 50 mm and inner dia of 38 mm with necessary couplers, bends etc for protection of LT cable all as specified and directed.

M & L road cutting for layingpe of LT UG cable/Galvanised Iron pipe complete and making good,light grade 80mm dia. for cable protection complete all as specified and directed.

Supply and laying GI pipe light grade 50mm dia. for cable protection complete all as specified and directed.

M&L Plain cement concrete (1:4:8) with 40 mm graded aggregate in foundations, filling and mass concrete for poles, stay assembly complete all as directed

M&L Plain cement concrete (1:2:4) with 20 mm graded aggregate as in coping for poles and finishining the concrete surfaces fair and even including necessary Form work required at site , complete all as directed

Supply and fix XLPE insulated armoured heavy duty underground electric cable with standard aluminum conductor, 1100 volts grade of cross section area 2 core 10 Sqmm laid in trenches/fixing on wall all as directed and specified.

Ditto- All as per Item No.9 above but sectional area 2 core 16 Sqmm

Ditto- All as per Item No.9 above but sectional area 4 core 16 Sqmm. NOTE For Item No.9 to 11.Excavation,Earth work,GI pipe Etc, will be measured and paid under appropriate Items above.

Supply & Erecting Steel Tubular Swaged Pole Type 410-SP-55 (9.0 Metre long) including Cast Iron Base Plate, Finial Taper Plug, Cap, Mild Steel Bolts, Nuts, Screws including applying two coats of Black Bituminous Paint Internally and Externally from bottom End of Pole upto PCC Coping and applying with two coats of Aluminium Painting over a coat of Aluminium Primer (Externally from Top of Coping) including writing MES Pole No.with synthetic Enamel Paint (First Grade/quality), complete all as specified and as directed. NOTE :- Earthwork, Cement Concrete, etc. will be measured and paid under approprite Items.

M&L for scraping/Preparation of old surfaces and applying aluminium paint, two coat on existing RCC / steel tubular LT poles of 2 / 4 pole structure and marking and painting with black colours strips with radium paint on intervals of 150mm apart upto a height of 1.5 Mtr from coping level and numbering serial no on the pole such as 'LT 10' with letter size not less than 40 mm in height and 6 mm in width with synthetic paint all as specified and directed

M&L for preparation of old painted surfaces of steel tubular / RCC pole and cleaning the surface etc. and applying two coats of synthetic enamel paint based paint white colour and in bottom black colour including applying two coats of synthetic enamel paint silver colour on bracket of street lights and on clamps, writing the all details as per direction complete all as directed. Note: 1.5 sqmm multistranded copper cable drawn in 20 mm non rigid PVC conduit including clamping from fitting to FRP Junction box are deemed to be inclusive in above quoted rates.

Supply and fix FRP junction box of size 250 x 200 x 105 mm for loop in - loop out connections of street lights including one four pole connector and one MCB 240 V SP 6 A mounted on existing street light poles complete all as specified and directed. Make: Sintex / Hensel or equivalent

M & L for PVC flexible cable with copper conductor 2.5 sqmm, 2 core, 1100 volts grade multistranded for connecting from existing junction box to street light fitting complete all as specified and directed. Make: Polycab / Havells/ Finolex or equivalent

S&F light emitting diode street light Luminaries compressing pressure, die cast housing for better aesthetics and thermal management. Comprises of extruded aluminium housing with pre-wired gear tray with LED's & drive, heat resistant flat glass suitable gasketed for IP65 protection, high grade power coating and fitted with toughened glass with high power LED'S of 60 watt and pipe mounting arrangement for end mounting on bracket made out of 40mm dia GI pipe light grade, 1.2m long bent to shape with two sets of clamps made out of flat iron 50 x 6mm, bolts, nuts and washers and applying two coats of aluminium paint over on coat of red oxide zinc chrome primer connecting electrically with PVC mulitistranded copper cable of suitable size complete including taking down existing fittings all as specified and directed, Make: Bajaj, Wipro, Havells, Philips or equivalent

Taking out Transformer from its Position for repair /servicing/ rewinding of capacity upto 320 KVA, 11/0.433 Volts installed on Two Pole structure / RCC Plinth structure, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works. Note: a) Transporting transformer to workshop at Port Blair and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm) as directed. b). Opening of transformer top cover by extraction, removing of serviceable - unserviceable nuts bolts and washers. c) Draining out of transformer oil and keeping in safe custody for reuse.d) Lifting primary coil (HT) and secondary coil (LT), dismantaling of transformer complete part by part carefully, and display all the parts without damaging any portion for inspection of Engineer-in-Charge or BOO detailed by Garrison Engineer to ascertain the serviceability of parts and quantam of repairs involved. e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. f). Reassembeling the transformer complete with all existing serviceable parts, and new parts as ordered. g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load h) Rewinding, reinsulation of Primary and secondary coil with copper winding wire, dehyderation and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. i) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in unit rate quoted

M&L for rewinding HT coil of 33/ 11 KV, 11/ 0433 KV Transformer any capacity using proper size DPC copper wire and insulation material, heating coils in heat chamber after rewinding including taking out carefully burnt unserviceable copper winding of coils complete all as specified and directed

Re-insulation of HT coil of transformer of any capacity using proper size paper insulation material to form DPC Copper wire and HT insulation material suitable for HT 11 KV transformer complete all as specified and directed. Note:- Item shall be measured only where re-insulation of copper wire is required.

M&L for rewinding LT coil of 33/ 11 KV, 11/ 0433 KV Transformer any capacity using proper size DPC copper wire and insulation material, heating coils in heat chamber after rewinding including taking out carefully burnt unserviceable copper winding of coils complete all as specified and directed.

Re-insulation of LT coil of transformer of any capacity using proper size paper insulation material to form DPC Copper wire and insulation material suitable for HT 11 KV transformer complete all as specified and directed. Note:- Item shall be measured only where re-insulation of copper wire is required

Note : An amount of Rs 30,475/- towards Schedule of Credit shall be deducted to arrive the Contract sum.

RSL Construction

M/S G S GREWAL

RS ENGINEERING WORK

ANITA VARMA ENTERPRISES

M/s Bismi Builders & Enterprises

B.R. ENTERPRISES