Military Engineer Services-MES has published Tender For Provision Of Transformer For Camp Area At Hq Eac (U), Af Under Ge (I) (Af) Shillong. Submission Date for this Tender is 18-02-2023. Transformer Supply Tenders in shillong Meghalaya. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 11-Feb-2023 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 18-02-2023 |
| Sl. No. | Item Description |
| 1 | Excavation in trenches in soft / loose soil, not exc 1.5 m wide and n. exc 1.5 m depth or n exc 10 Sqm on plan & getting out, for laying of cables, foundations of poles, struts, stays etc. and getting out including triming and forming bottom surface complete, all as directed. |
| 2 | Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cms thick in soft / loose soilback in trenches after cables have been laid and tested, poles, stays , struts have been erected and tested complete all as directed. |
| 3 | Removing excavated materials to a distance not exc 50m and depositing where directed at a level not exc 1.5 m above the starting point in soils complete all as directed. |
| 4 | Supplying, Fixing/laying,jointing and testing and commissioning, LT under ground cables, 1100 Volts grade, XLPE insulated, armoured heavy duty electric cable with stranded aluminuim conductors, laid in trenches, ducts/fixed on poles/walls/laid under roads/paths/drains/culverts or encased in GI pipe complete all as specified and directed of following sizes:- |
| 5 | 3.5 core 50 Sqmm |
| 6 | 3.5 core 185 Sqmm NOTE :- (a)Excavation & earth work, shall be measured and paid for seprately under respective items of the BOQ. (b) GI pipe for laying of cable, sand cushioning, cable protection cover shall be measured and paid for seprately under respective items of the BOQ (c)Road cutting involved during excavation for laying of cables etc shall be made good as per existing road.Nothing extra shall be admissible on this account.Quoted rates of the item shall be inclusive of the above provisions. |
| 7 | Supplying, laying, jointing, testing and commissioning120 Sqmm, 3 core, XLPE insulated, screened, PVCbedded, galvanised steel strip or wire armoured,electric power cable (heavy duty) with aluminum conductors, 11 KV grade of , IS 7098marked, suitable for HT 11 KV(E) system, laid in trenches / ducts / encased in GI pipe / fixed to pole complete all as specified and directed. (Note :- Excavation & earth work, GI pipe for laying of cable, sand cushioning, cable protection cover shall be measured and paid for seprately under respective items of the schedule.) |
| 8 | M & L for indoor type heatshrinkable cable end termination jointing kitfor LT 1100 Volts(Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :- |
| 9 | 120 to 185 Sqmm, 3.5 core |
| 10 | M & L for indoor type coldshrinkable cable end termination jointing kitfor HT 11000 Volts(Earthed) grade cable of following size complete with jointing material and accessories complete all as directed :- |
| 11 | 120 to 185 Sqmm, 3 core |
| 12 | M & L for dry sand cushioning to PVC under ground cable with screened and washed sand and punning to provide a required covercomplete all as specified and directed. Note :- Thickness after punning shall be considered for payment. |
| 13 | M & L for brick protection for UG XLPE cable withsub class "B" bricks, old size laid dry and flat abutting each other with gaps between adjacent brick 10mm with width equal to length of brick in trenches across the cable complete all as directed. |
| 14 | M& L for protection fencing with gate of overall size 5.0mtr x 5.0mtr x 1.2mtr for transformer and feeder pillar box . The fencing shall consists of expended metal sheet of mesh size 50mm x 20mm, flat iron of size 50mm x 6mm and angle iron of size 50mm x 50mm x 6mm which embedded in PCC block size 150mm x 150mm x 300mm (1:3:6 type C-2) with an angle iron gate of size 1.5mtr x 1.8mtr including locking arrangements. All steel work should be painted with two coats of synthetic enemel paint over a coat of red oxide zinc chrome primer after necessary prepration of new steel surfaces complete all as specified and directed. |
| 15 | M & L for brick work with sub-class "B" bricks of size one brick thick for foundation of transformer built in cement mortar 1:4 complete all as specified and directed. |
| 16 | Supply, installation, testing and commissioning of step down transformer out door typecomplete with standard fittings and accessories, HT 11 KV 3 Phase, LT 433 Volt, 3 Phase 4 wire with off load tap changer on primary side to carry secondary voltage tapping range + 7.5% with tappings at every steps 2.5 % all as per IS 1180 Part-I (2014 , With Latest Amendment No 1, 2, 3 & 4 of Energy Efficiency Level EEL-2) Level-2, for Transformer manufacturing ofcapacity400 KVA, copper wound, oil cooling with fins vector group : DYn 11, including initial oil filling (oil confirming to IS 335 and ISI Mark) complete all as specifiedincluding the following accessories :- (a)Three Nos porcelain bushing HT 11 KV with brass bushing rods, nuts, bolts & washers etc inside cable end box. (b)One cable box LV side consisting of 4 Nos porcelain with brass bushingrods complete with nuts and washers suitable for runs of 3.5 core LT UG cable. (c) Oil conservator with filler type drain valve and oil level gauge. (d)Dehydrating breather with first fill of dehydrating agent. (e)Explosion vents. (f)Thermometer pocket on tank cover. (g)One No 100mm dia, dial type thermometer vapour pressure type having range 0 to 120 degree centigrade (h) Bachholz relay |
| 17 | Serial item No 12.00 Contd.... (i)Rating plate and terminal marking plate (j)Earthing arrangement (k)Oil level gauge (l)Oil drain filter valve (m) Oil drain valve (n)Lifting hook (o)Oil conservator with filling hole and cap (p)Air relief valve plug (q)Four plate solid cast steel detachable rollers (r)Earth bushing for neutral outside the cable box for providing independent earthing for neutral NOTE :- (i)Certification of electric strength shall be submitted by the contractor, after filling the oil. (ii) Connected allied items shall be measured and paid separately under respective items of this BOQ. (iii)The consolidated rate for Srl No. 12.00 & 12.10 shall be quoted against Srl No. 12.00 of BOQ. |
| 18 | Supply, installation, testing & commissioning CPRI approved outdoor cubical type LT feedr pillar box suitable for 415V, 3 phase , 4 wire 50 Hz, AC supply system fabricated outer shell from MS sheet 3mm thick and MS angle of size 50x50x6 mm frame front and back openable single door system lockable /openable by keys from both sides having lock system totally enclsoed dust, weather & vermin proof having and inner shell 2mm thick made of MS sheet compartmentlisedfor each control gear front openable single door system lockable/openable by keys having louvers and air vent gaskets for natural flow of Air. "U" type gasket shall be used to make the inner shell completely vermin proof and to accomodate incommer/outgoing MCCBs andTPN copper busbars of rating 1.5 times that of controlling MCCB. TPN busbar and extension link shall be insulated with color coded heat shrinkable sleeve and shall be mounted on suitable size SMCinsulator at suitable inteval throghout the length of TPN busbar.supported on SMC insulator, bottom base channel of MS section not less than 100mm x50mm x5mm thick, entire panel shall have a common aluminium earth bar of size 25mm x 5mm at the rear with 2 Nos earth stud, solid connections from main bus bar to switchgears with required size of copper bus bars. All control wiring with minimum 1.5 sqmm PVC insulated multistranded copper conductor cable, cable alleys, cable gland, plates in two halfand general construction confirming to IS:8623/93. Computer cut self adhesive vinyl danger notice plate having conventional symbol of bone & skull be provided on the busbar chamber and front of outer shell and The degree of protection of outer shell shall be IP-54 and mountedon suitable PCC foundation. A detechable pre drilled gland plate of thickness 3mm should be used at bottom shell.Provision of threaded earthing stud at bottom & lifting lugs of suitable size at top to lift the feeder pillat box safely shall be made. Indicating lamps LED type, 230volts, AC at the incomer of the unit to show three phase availability at the outgoing of incomer including tamper proof digital meter to measure voltage, current with CT & PT (Make- Secure/L&T/HPL/Schneider). An inspection lamp with 5 watt LED bulb shall be fitted on top side of inner shell. The degree of protection for inner shell shall be IP-42 & including carry the following controls:- |
| 19 | Serial item No 13.00 Contd.... INCOMING & OUTGOING (a)MCCB 400Amp, 4 Pole, Ics 36KA, 415volts, 50Hz - 01 No (b)MCCB 125Amp 3 Pole, Ics 25KA 50 Hz - 04 Nos (c) MCCB 63 Amp 3 Pole, Ics 25KA 50 Hz - 02 Nos (d) Spare compartment to accomodate MCCBs of rating 40Amps-02 Nos. |
| 20 | Serial item No 13.00 Contd.... Notes(a) All armoured cables shall enter through bottom of the feeder pillar duly glanded and socketed and connected to MCCB/cable terminal. Cost of glanding socketing etc are deemed to be included in the unit rate of feeder pillar. (b) All the out going cable shall be terminated in bakellite cable connector and shall be duly glanded and socketed. (c) All the cables (power and control wiring ) should be terminated duly socketed with heavy duty tinned copper lugs, GI bolts/screws nuts, flat washers and spring washers as required. (d) White acrylic marker plate (for feeder / switch marking ) to be provided with black lettering by heat press machine as indicated in drawing and to be pasted over the panel door/near the cable connector with high quality adhesive. (e) The cost of platform/foundation with PCC shall deemed to be included in the quoted rates. (f) The consolidated rate for Srl Nos. 13.00, 13.10 & 13.20 shall be quoted against Srl No. 13.00 of BOQ. |
| 21 | M & L for earthing complete with galvanized steel earth plate 60 cm X 60 cm X 6 mm thick buried vertically in ground to depth not less than 2.25 metres deep below ground level, with top edge of earth plate not less than 1.5 m below ground level, connected to galvanized iron strip 32x6mm earth lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel besides welding at all joints as shown in drawing and including excavation and earth work, GI pipe light grade 40mm bore for protection of earth wire and connected to continous earth lead on pole/test point, supplying and laying charcoal dust common salt PCC 1:2:4 type B1, chamber and MS angle iron frame 40x40x3mm and RCC cover 40mm thick (1:2:4) type B1 using 20mm graded stone aggregate reinforced with 6mm dia round bars @ 75mm C/C both ways with MS handle 12mm dia, PGI/CI funnel and wire mesh, 20mm dia GI pipe medium grade for watering all as shown in electrical plate No 5 on srl page No 497 of SSR Part I (2009)drawing and connection to earth test point including testing and including dismantling and taking out old earthing complete all as specified and directed. Note : (i) The cost of earth lead /strip and GI pipe for protection of earth lead/strip upto 7.5m is included in the quoted rate. (ii)The cost of excavation, earth work is included in the quoted rate. |
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