REPAIR MAINTENANCE OF FENCING WALL AND ALLIED WORKS AND LIGHTING CONDUCTOR EARTHING AT VARIOUS OTM ACCN UNDER GE NARANGI

Amount

Dismantling of fencing, wire mesh of any type and in any position by unscrewing nuts fillets, clamps complete all as specified and as directed.

Dismantling post or stuts (wood, steel or RCC fencing posts) any section and taking out embeded portion (post embeded in concrete) including making good disturbed ground surfaces complete all as specified and as directed.

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified and as directed.

Demolition of Cement concrete (unreinforcement) of any description and in any position not otherwise specifically provided complete all as specified and as directed.

Supply and fix in repairs for galvanized 2 strand steel barbed wire 2.24 mm dia barbed with 2.00 mm dia, barbs at 75mm spacings and straining, tightening and fixing to MS nibs embedded in pre-cast RCC fencing post or angle iron post, struts, etc. securing and tying at crossings with and provision of galvanized mild steel wire complete all as specified and as directed. Note: Each line wire to be measured separately.

Supply and fix hand rails, half round or other steel section or core for wooden hand-rail straight portion, drilled and countersunk for balusters running bars, for doors, balusters, nosing to steps including embeding in concrete and screwing etc. wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 complete all as specified and as directed.

Material and labour for providing precast cement concrete(1:2:4) type B-1 set in cement mortar 1:4 in window or door cills, lintels, bressumers, steps, quoin blocks (for use with masonry), string courses, copings. kneelers, apex stones, pier caps, columns, posts, boundary pillars, bed plates, pintle blocks, ancho-rage blocks, bonders (for stone walling). corbels, brackets, etc. (of any section indicated), with plain fair faces, including chamfers, weatherings, throat- ing etc. and setting in mortar complete all as specified and as directed.

Material and labour for PCC (1:3:6) type C1 (using 20mm graded broken stone aggregate) in cement concrete in foundations, filling and mass concrete complete all as specified and as directed.

Supply only 3.15mm dia galvanized steel wire chain link fencing 75 mm x 75 mm mesh, including binding wire / line wire etc complete all as specified and as directed.

Fixing only, galvanized steel wire chain link fencing 75 mm x 75 mm mesh, fixed to fencing post with bolts etc including fixing of binding wire / line wire etc complete all as specified and directed.

Material and labour for mild steel bolts (machine made) with hexagonal head at one end and screwed the other end, each screw end to be fitted with two washers and one nut hexagonal, dia of shank 11 to 15 mm, length of bolt 50 mm to 100 mm complete all as specified and as directed.

Material and labour for 10 mm dia mild steel round bars as in stiffener to chain link fencing including necessary cutting bedding etc. conforming to Grade-I, IS 432 (Part-I) complete all as specified and as directed.

Material and labour for framed work as in doors or gates of angle or other section with gusset plates, rails, braces, etc., complete, drilled for fixing of steel sheeting or other covering. Doors, etc. to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging; also fastening and fixing complete. (Fe-410W(GdeE-250) quality B complete all as specified and as directed.

Material and labour for preparation of new or previously untreated steel or iron surfaces, over 10cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and as directed.

Material and labour for preparation of steel or iron surfaces not exceeding 10 cm width or girth and applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and as directed.

Material and labour for PCC 1:3:6 type C-1( using 20 mm graded stone aggregates) as in surface channels and drains complete all as specified and as directed.

Material and labour for PCC (1:4:8) type D2 (using 40mm graded broken stone aggregate) in foundations, filling and mass concrete complete all as specified and as directed.

Demolition of brickwork or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars, etc. but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and as directed.

Taking down cement plaster on brick or stone walls etc including racking out joints, hacking for key, scrubbing down with water etc. complete all as specified and as directed.

Material and labour for brick work with sub class ‘B’ old size bricks, straight or curved on plan exc 6m mean radius built in CM(1:4) complete all as specified and as directed.

All as per item No 20 here in above but except bricks complete all as specified and as directed.

Material and labour for half thick brick work with sub class "B" bricks straight or curved on plan exceeding 6m mean radius with old size bricks locaaly available built in cement mortar 1:4 complete.

Material and labour for plain cement concrete type B0, 1:2:4 (using 12.5 mm graded stone aggregate) in coping including weathering slightly rounded or chamfered angles and throating as directed all as specified and as directed.

Material and labour for precast cement concrete 1;2;4 type B-0 louvres and jallies, 25mm thick (measured solid), including all mould- ings set in CM 1:4 complete all as specified and directed.

Material and labour for 15 mm thick cement plaster in CM (1:4) on fair faces of brick work incl finished even and smooth without using extra cement complete all as specified and directed.

Material and labour for preparation of new plastered surfaces and applying three coat of white wash on wall complete all as specified and directed.

Material and labour for preparation of newly plastered surface of walls and applying two coat of cement base paint over a coat of primer complete all as specified and as directed.

Material and labour for reinforcement cement concrete 1:2:4 ( 20 mm graded stone aggregate) as in slabs supported on walls, beams and columns in floors roofs, landings, balconies, canopies, deck slabs and in shelves and the like complete all as specified and as directed.

Material and labour for TMT bar 10 mm and over cut to length bent to shape required including cranking bending spirally for hooping for columns, hooking ends and binding with and including MS wire (annealed) not less than 0.9 mm dia or securing with clips etc complete all as specified and as directed.

Material and labour for form work to soffits of suspended slabs such as roof slabs, floor slabs, landings & similar works, flat rough finished surafaces of concrete; not exceeding 200mm thick (horizontal or sloping) complete all as specified and as directed.

Material and labour for 100mm thick plain cement concrete (1:3:6) type C-2 (using 40mm graded crushed stone aggregate) as in floor / hardstanding complete all as specified and as directed.

Material and labour for 75 mm thick cement concrete (1:3:6) type C-1 (using 20mm stone aggregate) as in sub base of floor or footpath complete all as specified and as directed.

Material and labour for 75 mm thick cement concrete(1:3:6) type C-1 (using 20mm stone aggregate) as in floor finishes or footpath finishing cement concrete surface even and smooth without using extra cement complete all as directed.

Material and labour for pre-polished chequered cement concrete tiles 30 cm x 30 cm x 25 mm thick, set, jointed and pointed in neat cement slurry including 15mm thick screed bed in cement mortar 1:4 complete all as specified and as directed.

Material and labour for machine pressed precast concrete interlocking paver block any shape and size confirming to IS 15658-2006 of 80 mm thickness of M-40 grade with grey cement and pigment complete all as specified and as directed.

Material and labour for sand cushioning under interlocking tiles complete all as specified and as directed.

Dismantling of stone slabs and tiles of any description or thickness in floors/aprons laid bedded and pointed in any mortar

Demolition of cement concrete ( Reinforced) as in roof , flooors ( Other than ground floor), beams, staircase, landing, chajjas, shelves and other similar suspended works complete all as specified and directed.

Material and labour in repair for air termination, single pointed, aluminium rod 12mm dia and 300mm long to be fixed on horizontal lightning conductor with sutable fixing arrangement complete all as specified and directed.

Material and labour in repair for Air termination, single pointed, copper rod 12mm dia and 300mm long to be fixed on horizontal lightning conductor with sutable fixing arrangement all as specified and directed .

Taking out old GI/aluminium strip of any size and type in any height and any location as directed by Engineer In charge.

Material and labour for Refixing of serviceable aluminium strip/GI strip retrieved from item No. 24 on top of "V" type procelain insulator suitable size , GI nuts and bolt ,screws cleats etc.(Cost of Procelain insulator deemed to be included in quoted rate)duly straightened properly as directed by Engineer in charge. Note: The distance between two porcelain insulator should be one meter.

Material and labour for aluminium strip 25 x 3.15mm with "V" type porcelain insulator or DMC insulator of suitabe size and fixing with GI screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

Material and labour for copper strip 20 x 3.15mm with "V" type porcelain insulator or DMC insulator of suitabe size and fixing with GI screws etc. for roof conductors and down conductors above ground complete all as specified and directed.

Material and labour in repair for Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed incl 3 Nos 8mm dia 25mm long hexagonal head screws for fixing strips to test point including necessary fixing arrangement to fix test point terminal block to test point junction box all as specified and directed. complete all as specified and as directed.

Material and labour in repair for fabrication of display board for earth pit nos, lacation and periodical test results for lightening arrester earthing, made of MS sheet 4.0 mm thick sheet, rectangular welding on 12 mm dia rod of height from ground level 30 cm including fixing in PCC 1:2:4 with 20 cm X 20 cm X 20 cm (below ground level) grade aggregate foundation. Dimension of board shall be 30 cm X 25 cm.The instruction shall be written black painted board in white letters not less than 2 " size for all type of boards complete all as specified and dierected by the Engineer -in-charge. Note : (a) All necessary MS sheet, aluminium screws and PCC works etc are deemed to the rate quoted by the contractor

S&F in repair for thermoplastic(polycarbonate) junction box for test point without terminal block of dimension 130x180x77 mm IP 66 halogen free and weather proof including four hexagonal anticorrosive screws for out door installation.

Material and labour in repair earthing complete with copper earth plate electrode 600mm x 600mm x 3 mm thick burried directly in ground (Earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below ground level connected to copper strip 20 X 3 mm as earth lead by means of bolts nuts, check nuts and washers of brass and as shown in electrical plate No 3 connected to earth test point,copper earth strip protected with and including GI pipe 40mm bore(dia) for earth lead protection ' light grade', GI pipe 20mm Bore(dia) ' Medium grade' for watering including necessary excavation any type of soil, RCC chamber cover plate, wire mess, funnel, etc complete and testing on completion.

Material and labour in repair earthing complete with galvanised steel earth plate electrode of size 600mm x 600mm x 6 mm thick burried directly in ground (Earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below ground level connected to galvanised earth lead by means of bolts nuts, check nuts and washers of galvanised iron or steel using GI strips 32 X 6mm as earthing lead as shown in electrical plate No. 3 of SSR Part-I connected to earth test point all as specified or indicated including GI pipe 40mm bore(dia) for earth lead protection ' light grade', GI pipe 20mm Bore(dia) ' Medium grade' for watering including necessary excavation any type of soil, RCC chamber cover plate, wire mess, funnel, etc complete and testing on completion.

Material and labour in repair earthing complete with galvanised steel earth plate electrode of size 600mm x 600mm x 6 mm thick burried directly in ground (Earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below ground level connected to galvanised earth lead by means of bolts nuts, check nuts and washers of galvanised iron or steel using galvanised earth lead wire 4.0mm as earthing lead as shown in electrical plate No. 3 of SSR Part-I connected to earth test point all as specified or indicated including GI pipe 20mm bore(dia) for earth lead protection ' light grade', GI pipe 20mm Bore(dia) ' Medium grade' for watering including necessary excavation any type of soil, RCC chamber cover plate, wire mess, funnel, etc complete and testing on completion.

Material and labour for Advance encapsulated compound based Chemical earthing CPRI tesed maintenance free , pipein -pipe technology upgraded (Zinc coated). , Zinc & Alloy coated (80 -100) microns with pure zinc (99.9%) & Alloy coating (200-250) microns.Earthing system conforming IS 3034. The outer and inner pipe should be 76.2mm and 41.9mm dia respectively of 3 mtrs long zinc coated with with additional special alloy coating 300mm on top side for additional protection of the terminal . The annular space between the pipes to be filled up with Compact fill (CF) (Crystalline Conductive) mixture which should be machine pressed in the pipes not disintegrate or collapse when outer pipe corrodes . The inner pipe should be extended with terminals for connectivity.The job includes digging the pits ,lowering the pipe in pipe earth electrode,filling of pure conductolite back filling compound (BFC Conductolite ) having excellent moisture retaining capacity in 250 mm around the electrode min 4 bags of 25 KG per pit per unit. The BFC should be eco friendly it should not contain environmently hazardous material/metal having ROHS certification from NABL accredited lab.The earth pit should be provided with a FRP earth pit cover for protection and safe guard of terminals. The material of earth electrode should have good electrical conductivity & anti corrosion property in wide range of soil conditions. The job also include Material and labour for in PCC(1:3:6) type C-1 around the FRP cover for support and foundation and colouring the PCC work with desired colour.complete all as specified and directed. Note :- (i) Design of earth electrode should be of pipein-pipe technology . (ii) Contractor have to submit literature of earth electrode and get the make approved of GE before procurement. (iii) The earth electrode shall be CPRI tested to withstand short current test for 60kA rms for 1.0 second and 150kA for peak current. (iv) Contarctor has to fill pure back fill compound 250 mm all around the earth electrode up to full depth of pit. (v) Copper strip will be laid below 20 cm from ground level and connecting the test point through plinth protection using HDPE pipe for protection, deemed to be included in the item. (vi) Contarctor shall submit the test report of earthing after satisfactorily completion.

Taking down old broken and damaged earth pit chamber and Material and labour for construction of new earth pit chamber with RCC cover and handle of as per electrical plate No 3 of SSR Part Iand PCC 1:2:4 Type B-1 including GI funnel and wire mesh , and synthetic enammeled paint 2 coat as per colour code complete all as specified and directed.

Supply and fix in repair GI tubing medium grade 40mm bore as in supports to air termination rods all as directed.

Supply and fix in repar shackle type insulator LT 1100 volt grade porcelain vitreous white or brown including galvanised mild steel straps, washers, insulator bolts, nuts 12 mm dia, 75 mm height and 90 mm dia, section of straps 31mmx3mm of insulator complete all as specified and directed.

Material and labour for ACSR conductors (weasel type) for LT OH lines on poles including stringing, binding with aluminium wire 14 SWG or aluminium tape including jumpers complete connecting of disconnected cable, service cable and street light connection including dismantling of unserviceable ACSR conductor of any size from any position complete all as specified and as directed.

Goswami Traders (BID ID -3179766)

M/s Dhani Enterprise (BID ID -3180033)

S. R. TRADING (BID ID -3179917)

SANDIP BARUAH (BID ID -3179682)