Military Engineer Services - West Bengal
35578454 work services for provision of project nfs infra at af station barrackpore 1 supply and installation, testing and commissioning of copper wound transformer step down, outdoor type, oil cooled complete with standard fittings, ht 6.6kv 3 phase, lt 433 volts, 3 phase + 1 neutral, 4 wire with off load tappings on ht side to vary secondary voltage within limit, all as per is:1180 ( part i ) 2014, level 2 , 3 phase, & 50hz, type of cooling onan, outdoor type, off circuit tap switch changer, including all connected accessories as per standadrd schedule of capacity upto 100 kva, top up / first filling of oil and testing as per standard practice all as specified and directed.specification of transformer: ( a ) cooling type onan oil cooled as per is 335, bs 148, d 1473, iec pub 296 ( b ) winding copper wound as per astm b 49 ( c ) air clearance min air clearance for hv hv and lv lv as per is 1180 or latest ( d ) vector group dyn 11 ( e ) flux density should not be more than 1.55 tesla ( f ) star rate 5 star rated and labelled on the body with colour code, logo etc as per bee standard. ( g ) transformer tank shall be constructed robust rectangular shape with wall thickness not less than ms plate supported with adequate angle iron at all corners, joints etc with healthy fabrication method, painted inside with weather proof oil resistance paint, external body painted with weather proof paint after applying healthy zinc chromite primer. colour shall be get approved by ge ( af ) barrackpore. ( h ) radiators press fin type ( j ) pressure release device shall be provided with operating pressure before 0.25 kg / cm2 ( k ) ht / lt bushings shall confirm is 2099 / 1973 with standard make ( l ) ht / lt spindles shall be made up of brass and fitted properly on their respective terminals. no other metal shall be entaertained. if spindle materials found except the specification, contractor has to replace the same at site at his own cost. delay in rectification of any defect shall not be considered for extension of pdc. ( m ) silica gel with breather shall be placed at the place where moisture ingress can be avoided to maximum and it must be mentioned in the drawing during approval stage. ( n ) oil level guage, temp guage and pressure guage shall be provided ai the where indicated as per approved drawing. 2 note: ( a ) excavation earth work and pcc foundation ( 3mtr wiidth x 3mtr length x 1.2mtr above gl height and 0.75mtr below gl ) shall be included in quoted rate. provision for cable entry and exit at both ht and lt ends shall be done with adequate space / grooves for easy maintenance. plastering of foundation incl weather proof painting 2 coats shall be done by the contractor before installation of transformer. ( b ) all the arrangements for loading unloading and placement on platform shall be made by the contractor. ( c ) contractor shall submit test certificate from the manufacturer and cp vouchers before processing the rar. ( d ) contractor shall get the make, specification and drawing approved prior to placing order. ( e ) contractor shall arrange factory inspection of transformeron his own cost before despatching it from factory. ( f ) all defects shall be rectified at site till the satisfaction of engineer in charge. ( g ) testing of transformer at various load factors shall be done at site with the help of oem technician till achieving satisfactory result at site in front of engineer in charge. ( h ) all the ht / lt ug cables shall be properly connected it at their respective terminals without any contact before testing. ( j ) transformer shall be provided with robust lifting hook so that it can be easily lifted for transportation and shifting. ( k ) transformer shall be mounted on channel and wheel with stopper pin so it can be moved easily. 3 supply, laying & testing and connecting cable xlpe insulated, screened, pvc bedded, galvanized steel strip or wire armoured, electric power cables ( heavy duty ) with stranded aluminium conductor, 11000 volts grade, of size 3 core 95 sq mm, ( earth grade ) isi marked with valid cml no, complete all as specified and directed. 4 supply and fix cable jointing kit for 11 kv grade cable for out door termination cold shrink type joint complete with jointing material and accessories suitable for3 core xlpe armoured al conductor cable of size 70sqmm to 120 sqmm complete all as specified & directed. 5 s & f steel tubular sewaged pole complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 sp 55 ( 11.0 meter long ) for making 2 pole structure, conforming to is complete all as specified and dircetd. note: ( i ) the contractor should provide test certificate from the manufacturer. ( ii ) all welding works related to pole should be carried out at the factory premises of the manufacturers. 6 m & l for ht 6.6kv gang operated ab ( air break ) switch outdoor type 200 amp rated vertical mounted, fixed in c channel, rotating movable type, providing operating vertical movable gi pipe of 25 mm bore with locking arrangement, including suitable handle covered with ht insulation, including fixing gang switchon two pole structure by providing gi nut bolts washers etc and providing pad lock completeall as specified and dircetd. 7 s&f expulsion fuse single pole of capacity 6.6 kv, up to 100 amp, fixed on 2 pole structure including insulators mounted on c channels made up of mild steel complete all as specified and dircetd 8 m&l for fixing lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp, 11 kvmounting on top of the 2 pole structure incl drilling holes on channel, complete all as specified and directed. 9 m&l for ms channel / angle / cross arms c type including making hole for clamping arrangements, drilling holes in any dia at any length, welding fabrication, , bending including all kind of nuts / bolts / washers and ms clamps of 5 mm thick and not less than 5 cm width suitable for mounting / fixing ms c channels on 2 pole structure, extending supports from the existing 4 pole structure upto new 2 pole structureincluding painting of 11mtr ht pole with the help of alumium paint x 2 coat after preparing the pole surfaces and 2 coats of metallic primercomplete job all as specified and as directed. 10 surface dressing in soft / loose soil for the depth not exc 15cm to remove bushes / green grass / medium tree roots etc to make a levelled platform around the transformer / 2pole / 4 pole structures etc as per the laid down procedure of ht switch yard all as specified and as directed by engineer in charge 11 excavation in trenches in soft / loose soil not exceeding 1.5 m wide and not exceeding 1.5m in depth, n.exc 10 sqm on plan andgetting out complete all as specified & directed . 12 excavation in trenches in soft / loose soil not exceeding 1.5 m wide and exceeding 1.5m but not exceeding 3.0 min depth, n.exc 10 sqm on plan andgetting out complete all as specified & directed . 13 returning, filling in, including spreading, leveling, watering and well ramming in layers n.exc 25cm as in soft loose soil complete all as specified and directed. 14 removing excavated soil to a distance n.exc 50m and depositing where directed at a level not exc1.5 m above the starting point complete all as specified and directed. 15 supply, filling in trenches, spreading, leveling sand cushioning 8 cm below cable and 15 cm above the cable punned down to 18 cmfor under ground cable complete all as specified & directed. ( note : for the purpose of payment, punned thickness of sand cushioning only shall be measured and paid for ) . 16 supplying and laying un reinforced precast concrete cable cover, class lv, type i, flat, as per is 5820 of size 250mm x 150mm x 40mm, laid perpendicular to the length of ug cable in trenches complete all as specified & directed . [ note: ( a ) pcc cable cover should be factory made with smooth finish over the surfaces without any crack. ( b ) surface should be imprinted with is no., lv and manufacturers name etc. ] 17 supplying and laying un reinforced precast concrete cable cover, class hv, type ii, flat, as per is 5820 of size 300mm x 180mm x 40mm, laid perpendicular to the length of ug cable in trenches complete all as specified & directed . [ note: ( a ) pcc cable cover should be factory made with smooth finish over the surfaces without any crack. ( b ) surface should be imprinted with is no., hv and manufacturers name etc. ] 18 supply and fix pin insulator porcelain vitreous 11000v grade, 150mm high, 150mm dia, nuts, bolts and washers etc, galvanised ms spindle, washers fixed on channels or directly on poles all as specified and as directed. 19 m&l for acsr conductor on 2 pole structure ht 11kv for jumpering, extension of bus from existing 4 pole structure, proper jointing with suitable clamps and termination with the help of suitable lugs in gods, drop out units, insulators and cable end terminations etc of weasel with permissible sag as per is rules etc all as specified and directed. 20 s&f danger notice plate of 1.6mm thick mild steel sheet, vitreous enamalled white, with letters, figures and conventional skull and bones in signal red colour and fixed with ms clamps, bolts, and nutsof approved size for ht 25x20 cm complete all as specified and directed. 21 m&l 100mm thick pcc ( 1:3:6 ) type c 2 using 40 mm graded crushed stone aggregate as in sub base / sub floor complete all as specified and directed. 22 m&l for pcc ( 1:3:6 ) type c 2 ( using 40 mm graded stone aggregate ) as in foundations, filling and mass concrete complete all as specified and directed. 23 m&l for pcc ( 1:2:4 ) type b 1 ( using 20mm graded stone aggregate ) as in coping of pole, concrete base work, protection of cable etc complete all as specified and as directed. 24 m&l for broken stone or boulders hardcore of gauge exc 63mm but n.exc 100mm deposited, spread and levelled in layers nexc 15 cm thick, watered and rammed to a true surface complete all as specified and as directed. 25 supply and fix voltage stabilizer for automatic operation, indoor type, three phase, naturally oil cooled, indoor type & designed for input variation between 300 v to 480 v with output voltage stabilized at 415 with accuracy ± 2.5% and speed of correction 8 volts per second and of capacity 100 kva complete all as specified and directed..note: ( i ) rate incl all kind of pcc, platform, foundation, preparation of site, well finishing with plastering and weather proof painting on foundation if required. ( ii ) contractor has to do testing and commissioning at his own cost upto the satisfaction of engineer in charge. ( iii ) drawing and specification of the voltage stabilizer shall be obtained from ge ( af ) barrackpore before ordering the product. ( iv ) all kind of cable connections, cable gland and connected acceesories shall deemed to be incl in quoted rate. ( v ) contractor has to submit original purchase vouchers and test certificate from oem before payment. 26 supply, commisioning and testing of isolation transformer indoor type, double copper woundn oil immersed, crgo core type, naturally cooled, built up with class a insulation, confirming to is 2006 : 1977, of capacity 100 kva, unbalanced, on load voltage ratio : 415 / 415 volt, phase and frequency : 3 phase & 50 hz, vector group: dyn 11, connection : delta / star, outdoor type , type of cooling onan including transformer oil and all acessories, complete all as specified and as directed. [ note: ( i ) unit quoted rate shall deemed to be included excavation and earthwork, all kind of pcc, platform, foundation, preparation of site, well finishing with plastering and weather proof painting on foundation if required. ( ii ) contractor has to do testing and commissioning at his own cost upto the satisfaction of engineer in charge and ge. ( iii ) drawing and specification of the voltage stabilizer shall be obtained from ge ( af ) barrackpore before ordering the product. ( iv ) all kind of cable connections, cable gland and connected acceesories shall deemed to be incl in quoted rate. ( v ) contractor has to submit original purchase vouchers and test certificate from oem before payment. ] 27 s&f cubical type double door apfc panel, outdoor type including mccb 200amps, ct / pt, power contactors, 5 stage with md xl capacitor and auto / manual option of capacity 30 kvar rating capacitor enclosed in cpri approved cubical feeder pillar box with all kind of accessories and multi function meter, apfc controller, led indicators, civil works such as pcc ( 1:3:6 ) type c 2 foundation, ms angle iron work etc and all wiring etc complete all as specified and as directed. [ note: ( i ) unit quoted rate shall deemed to be included excavation and earthwork, pcc foundation, ms angle iron frame work etc. ( ii ) contractor has to get approval of drawing with all dimensions from ge ( af ) barrackporebefore procuring the material at site. ( iii ) pcc foundation shall a height of at least 45 cm from gl and ms angle iron frame / stand should be at least 45 cm height from the top of the pcc foundation. ] 28 m&l for earthing complete with gi earth plate electrode of size 600x600x6 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to gi earth strip of size 32 x 6 mm earth lead by means of nuts, bolts, check nuts, washers of galvanized iron as steel, protected by galvanized iron pipe 40mm bore ( medium grade ) allas directed including cement concrete ( 1:3:6 ) type c 1 earth pit with precast rcc ( 1:1.5:3 ) type a 1 cover slab of size 45 x 45 x 5cm thick reinforced with 8mm dia tmt bars @ 15 cm c / c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe ( medium grade ) for watering, charcoal or coke and salt in alternate layers with necessary earth work in soft / loose soil complete all as shown in electrical plate no 3 of ssr part i including testing on completion complete all as specifed and directed. [ note : ( a ) proper earthing pit should be provided with pit cover. ( b ) excavation / earthwork is deemed to be included in the unit quoted rate. ( c ) gi strip upto 7.5m is deemed included in the unit quoted rate. ] 29 m&l for earthing complete with copperearth plate electrode of size 600x600x3.15 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to 25×3mm copper stripas earth lead by means of nuts, bolts, check nuts, washers of galvanised iron as steel, protected by galvanized iron pipe 40mm bore ( medium grade ) allas directed including cement concrete ( 1:3:6 ) type c 1 earth pit with precast rcc ( 1:1.5:3 ) type a 1 cover slab of size 42 x 42 x10cm thick reinforced with 8mm dia tmt bars @ 15 cm c / c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe ( medium grade ) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft / loose soil complete all as shown in electrical plate no 3 of ssr part i including testing on completion complete all as specifed and directed. [ note : ( a ) proper earthing pit should be provided with pit cover. ( b ) excavation / earthwork is deemed to be included in the unit quoted rate. ( c ) copper strip upto 7.5m is deemed included in the unit quoted rate. ] 30 supply & installation of chemical earthing by using pipe in pipe copper electrode pipe by using advance encapsulated compound based cpri tested maintenance free, corrosion free pipe in pipe technology of latest one complete. earthing system confirming is 3034:1987. the outer and inner pipe should be50 mm & 32 mm 3 mtrs length, 1.5mm thick wall, copper pipe as electrode with additional special alloy coating 300mm on the topside for additional corrosion protection of the terminal. the annular space between the pipes being filled up with compact fill ( cf ) ( crystalline conductive compound ) . the compact fill ( cf ) mixture which is machine pressed in the pipes should not disintegrate or collapse when outer pipe corrodes. the inner pipe should be extended with terminals for connectivity the job includes digging the pits and refilling the same by conductolite back fill compound ( ground enhancer ) , the bfc should be eco friendly ( bentonite or graphite ) after taking proper testing of soil resistance, it should not contain environmentally hazardous material / metal having rohs certification from nabl accredited lab. good earth is to be arranged to fill the excavated pits by mixing the same with bfc 2 bags ( each bag contains 25 kgs of bfc ) including frp ( fiber reinforced plastic ) cover having high mechanical strength, chemical resistance able to bear 2 ton of loads with detachable easy locking lid complete all as specified & directed. ( note : earth test value should not exceed 0.5 ohm after installation at site. ) 31 s&f earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthling etc. as required by using copper strip of size 25 x 3mm complete all as specified & directed. 32 s&f earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit / pipe or fixed to poles or any other indicated situation for loop earthling etc. as required by using aluminium strip of size 32 x 6mm complete all as specified & directed. 33 supply, laying & testing lt electric cable xlpe insulated screened pvc bedded, galvanized steel strip or wire armored, electric power cables ( heavy duty ) with stranded aluminum conductor, 1100 volts grade, of size 3½ core 95 sq mm complete all as specified and as directed. 34 supply, laying & testing lt electric cable xlpe insulated screened pvc bedded, galvanized steel strip or wire armored, electric power cables ( heavy duty ) with stranded aluminum conductor, 1100 volts grade, of size 4 core 10 sq mm complete all as specified and as directed. 35 m&l for thermoplastic cable junction box out door typemounted on pole byms clamp of suitable sizes, with metric knockout for cable entry of size 10 sqmm , dimension of box are 130 x 180 x 77 mmcomplete with terminals complete all as specified and directed. ( make hensel, cat no kf 1000 h or equivalent model in sintex / c&s ) 36 m & l for steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 sp 31 ( 9.0 metres ) conforming to is complete all as specified and directed. note: ( i ) the contractor should provide test certificate from the manufacturer. ( ii ) all welding works related to pole should be carried out at the factory premises of the manufacturers. 37 supply and fix led street light 35w ip 65 / 66, outdoor type, die cast alumium housing with heat resistant / heat sink body fixed with and including street light bracket 1.5 rm length, made out of gi pipe of light grade 40mm bore, bend to shape, threaded and drilling holes for wire entry, including ms clamps ( 02 nos ) of suitable size in proper shape and size complet all as specified and as directed. 38 m&l forpvc insulated two core 1.5sqmm multistrand copper conductor for connection of securiry light from junction box to security lightall complete as specified and directed. 39 s&f steel tubing of size 25 mm bore, light grade with all fittingsfor protection of cables, fixing on street light poles including gi clamps, nuts and bolts and washers all as specified and directed. 40 m&l for painting of lt pole 9mtr high complete with applying two coats of aluminium paint over a coat of red oxide primer after preparation of surfaces of pole including over the nut bolts, clamp and channels complete all as specified and directed 41 m&l for painting of ht pole 11mtr high complete with applying two coats of aluminium paint over a coat of red oxide primer after preparation of surfaces of pole including over the nut bolts, clamp and channels complete all as specified and directed 42 m&l for numbering ht / lt pole after making circle in black colour paint and writing clearly by using soft brush or with the help of stencil sponge in white colour width of letter shall be maximum 1cm and height shall be max 4cm complete all as specified and as directed by engineer in charge 43 m&l for cable duct after cutting the existing pcc floor of existing bldg to the dimension of 30cm width, 45cm depth including plastering of duct inner wall, sand filling in duct upto the thickness of 30cm including duct cover made up of ms sheet having thickness not less than 5mm all as specified and as directed.note: work involves the following: ( i ) cutting of pcc floor of existing nfs bldg ( ii ) plastering of cut wall of new duct ( iii ) sand filling up to 30cm ( iv ) ms sheet cover as duct cover of thickness 5mm ( v ) removal of debris ( vi ) making good of disturbed portion as per existing whether kota stone floor or granite or any. 44 m&l for cable route indicator made up of ci metal in circular shape of dia not less than 8cm with casted letters from factory as mes ht cable punched / bolted with ms angle of thickness not less than 3mm vertically planted to the depth not less than 30cm below gl and 15cm above gl including pcc coping to fix bottom of angle under the ground all as specified and as directed. 45 s&f gi pipe, light grade, 80mm bore including all fittings for passing copper / aluminium earth strip in hard standing, pavement etc and using as cable protection cover in 2 pole structure and as per ground requirement including make good disturbed surface complete all as specified and directed. 46 m&l for re routing of pipeline of any size and type including taking out old serviceable fittings, ci / gi / di specials / control valves from trenches between cpwd sub station and new nfs building and re laying and jointing in new trenches complete all as specified and as directed. ( note: excavation and earth work shall be measured and paid separately. ) 47 m&l for re routing of pipeline of any size and type including taking out old serviceable fittings, ci / gi / di specials / control valves from trenches between cpwd sub station and new nfs building and re laying and jointing in new trenches including all king of ci / gi / ci specials, fittings and tail piece complete all as specified and as directed. ( note: excavation and earth work shall be measured and paid separately. ) 48 m&l for ms pipe heavy grade 150mm bore, inserting into wall for making passage of drawing ug cable from outside of cable trench to inner duct chamber including cutting of brick masonry / pcc / rcc wall incircular shape and well finishing of disturbed portion all as specified and as directed. 49 s&f cubical housing cabinet type lt feeder pillor box outdoor type, platform mounted factory made, totally enclosed dust and vermin proof openablefrom both front and rear side made out of 3.15mm thick crcams sheetof overall size 1200 mm ( height ) x 1500 mm ( width ) x 600 mm ( depth ) and built upon suitable size angle ironframe work , having front and rear hinged doors, gi earthing strips at rear side , bottom detachable gland plate complete with suitable size zinc plated and passivated nut, bolts , spring and washers.the cabinet and all members should be chemically treated with msr solution for anticorrosive treatment and apply powder coated paint ( ral 7032 ) the panel should be suitable for 415 volts , 50hz, 3 phase4 wire systemand internal connection should be provided with aluminium strips of suitable size and necessary foundation workand comprisingfollowing: bus bar chamber ( a ) sheet steel bus bar chamber having front hinged covers with a set of electrolytic grade high conductivity tp&n solid aluminium bus bars, rated 400 amps supported at required intervals sleeved with heat shrinkable pvc sleevings.the bars shall be colour coded at required intervals for identification 01 set ( set of four ) .incomer ( a ) mccb of 4 poleof capacity 200 ampswith breaking capacity of 36 ka ( thermal setting 100%, magnetic setting upto 70% ) 02 nos ( incoming and apfc panel ) outgoing feeders ( a ) mccb of 3 poleof capacity 160 ampswith breaking capacity of 35 ka ( thermal setting 100%, magnetic setting upto 70% ) 1 no ( for existing change over ) . ( b ) mccb of 3 poleof capacity 25 ampswith breaking capacity of 25 ka ( thermal setting 100%, magnetic setting upto 70% ) 1 no ( for security lights ) . ( c ) mcb 32 amps c curve spn with breaking capacity 10ka 3 no ( for internal panel wirings ) . ( d ) time switch ( astro mini ) 110 240 vac 1 phase 2 w, 1 c / o, base / din with accessories of 10amps 1 no. ( e ) power contactor 4 pole 20amps 1 no. ( f ) bakelite cable connector 4 way 40 amps 1 no.indicating devices ( a ) led indicating lamps for main supplyindicating r, y b 01 set ( set of 3 ) . ( b ) digital voltmeter ( 96mmx96mm ) 0 500 volt with selector switch of 10amps 01 no. ( c ) current transformer havingratio 200 / 5, 5 va rated burden 3 nos. ( d ) digital ammeter 0 to 400 amps, square type ( 96mmx96mm ) 01 no. ( e ) voltmeter selector switch ( 6a ) 3 position with off 01 no. ( f ) ammeter selector switch ( 6a ) 3 position with off 01 no....