Military Engineer Services-MES has published Repair Maintenance Of Ht Distribution Network And Allied Works At Site E And Nchc Amdalli Township Under Ge Sb Karwar. Submission Date for this Tender is 06-01-2022. Overhead Line Tenders in CWE NAVY VASCO Goa. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 30-Dec-2021 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 06-01-2022 |
| Sl. No. | Item Description |
| 1 | Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth for laying/taking out cable and getting outin soft/loose soil all as specified and as directed. |
| 2 | Returning,filling in including spreading,levelling, watering and well rammingin layer not exceeding 25 cm in soft/loose soil all as specified and as directed. |
| 3 | Removing excavated soil not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point all as specified and as directed. |
| 4 | Taking down carefully old unserviceable UG cable (LT/HT) of any size from the trenches/wall/pole and keeping aside for reuse and remove the unserviceable cable from site including removal of brick/PCC cable cover complete all as specified and as directed. Note : Excavation and earthwork shall be measured and paid Separately |
| 5 | Supplying & laying in repair includingtesting ofXLPE insulated, armoured, heavy duty, HT UG electric cable in trenches/wall/cable tray/saddling/GI pipe or specified as per site requirement with stranded aluminum conductor 11 KV grade of following sizes:- Note :- Excavation & earth work, sand cushioning and PCC cover for cable protection shall be measured & paid seperately |
| 6 | (a) 3 core 95 Sqmm |
| 7 | (b) 3 core 120 Sqmm |
| 8 | (c) 3 core 185 Sqmm |
| 9 | (d) 3 core 240 Sqmm |
| 10 | Laying only in repair including testing of serviceable, HT UG cable of following sizes obtained from item No 4 here in before all as specified and as directed. Notes : 1. Serviceable cable obtained from Sl item No 4 above shall be reused. 2. Excavation and earth work, sand cushioning, PCC coverfor cable protection shall be measured and paid separately. |
| 11 | (a) 3 core 95 Sqmm |
| 12 | (b) 3 core 120 Sqmm |
| 13 | (c) 3 core 185 Sqmm |
| 14 | (d) 3 core 240 Sqmm |
| 15 | Supply and lay un-reinforced pre-cast concrete cable cover, class HV, type 1, flat, size 300mm x 180mm x 40mm complete all as specified and as directed. |
| 16 | Laying only un-reinforced pre-cast concrete cable cover, class HV, type 1, flat, size 300mm x 180mm x 40mm complete all as specified and as directed. |
| 17 | Supply and spread dry river sand in trenches for cable cushioning all as specified in clause 19.75 of SSR Part-I and as directed. Note:- Punned thickness of sand only shall be measured & paid. |
| 18 | Supply & Laying in repair80mm dia GI tubing light grade with necessary fittings as in cable protection in trenches/fixed on wall / floor including necessary clamps bolts and nuts complete all as specified and as directed. |
| 19 | Supply, jointing & testing Indoor end termination type heat shrinkable 33 KV HT joint kit suitable for 3 core 185 Sqmm PVC / XLPE insulated stranded aluminium conductor all as specified and as directed. |
| 20 | Supply, jointing & testing Indoortermination type heat shrinkable 11 KV HT joint kit suitable for PVC / XLPE insulated stranded aluminium conductor of size 3 core 120 Sqmm to 185 Sqmm all as specified and as directed. |
| 21 | Supply, jointing & testing Indoor termination type heat shrinkable 11 KV HT joint kit suitable for PVC / XLPE insulated stranded aluminium conductor of size 3 core 240 sqmm to 300 Sqmm all as specified and as directed. |
| 22 | Supply, jointing & testing straight through type heat shrinkable 11 KV HT joint kit suitable for 3 core 120 Sqmm to 185 Sqmm PVC / XLPE insulated stranded aluminium conductor all as specified and as directed. |
| 23 | Supply, jointing & testing straight through type heat shrinkable 11 KV HT joint kit suitable for 3 core 240 Sqmm to 400 Sqmm PVC / XLPE insulated stranded aluminium conductor all as specified and as directed. |
| 24 | S&F Danger notice plate of 1.6 mm thick mild steel sheet vitreous enamelled white, with letters, figures & conventional skull & bones in signal red colourand fixed with MS clamps, bolts and nuts of approved size,forHT 25x20 cm size all as specified & as directed. |
| 25 | Testing of HT UG cable by checking the insulation resistance using 5000v / 10000v fault insulation locator tester, identify any number of cable fault in a single stretch (from source to load) having minimum length of 1500 RM and pin point the fault location complete all as specified & as directed. Note: Insingle stretch having minimum length 1500 RM whatsoever Nos of fault shall be paid as each job |
| 26 | Testing of HT UG cable by checking the insulation resistance using 5000v / 10000v fault insulation locator tester, identify any number of cable fault in a single stretch (from source to load) having length more than 1500 RM and pin point the fault location complete all as specified & as directed. Note : Insingle stretch havinglength more than 1500 RM whatsoever Nos of fault shall be paid as each job |
| 27 | Supply & fix in repairs Phase indication lamp LED type of colour complete all as specified and as directed. |
| 28 | M&L for testing of resistance of earthpits of transformer,panels etc after testing the report shall be furnished in standard format approved by Engineer-in Charge. |
| 29 | Disconnecting HT supply and taking out defective trolley of 33 KV VCB 400/630/800 Amps of any make and type, servicing of trolley of VCB by cleaning isolating contacts moving parts removing dust particles from bus bar chamber spout gear mechanism and moving parts, repairs to motor change spring mechanismtightening of nut and bolts of entire trolley components all as directed inserting in trolley testing commissioning and putting on the supply on load complete all as specified and as directed. |
| 30 | All as per item No. 21 here in before, but for 11 KV VCB all as specified and as directed. |
| 31 | Taking out ACB of Siemens make, of capacity 800A to 3200A Amps, 3 pole , 415volts,125 KA indoor type from its sub cubicle and carrying out routinemaintenance as per manufacturer maintenance manual, examine the movingisolating contacts for any discolouration, cluster contacts, remove the arc chutes, check the SMC moulding are intacts, examine the moving contacts main contacts silver tips, spring mechanism, clean all contacts with a suitable solvent and contacts regreased with HP multipurpose grease, all contacts setting checked, readjusted if required, and regreased with HP multipurpose grease, all tripping device like manual trip, under voltage, shunt trip release, overcurrent and earth fault tripping device to be tested, readjusted and confirm all tripping device is in healthy condition, check and record IR value of ACB, with 1.1. KV LT megger calibrating ground fault / short ckt, overload relays for tripping & timing complete and rendering test report all as specified and as directed. |
| 32 | NOTES for item Nos 21 ,22 & 23 : (i) The scope of work includes following :- (a) Inspection & cleaning the mechanism house (b) Operation of door interlock, interlocking plate & shutter operation inside of panel. (c) Check the Mechanical ON-OFF function, electrical & mechanical operation and damage part of VCB/ACB. (d)Re-greasing and oiling of breaker mechanism, adjustment of various mechanism setting as required, checking contact tightness, contact erosion pins, manually vaccum check of VCB/ACB. (e) Racking-Rack out operation in Test & service position of VCB/ACB trolley. (f) Megger test (IR value - 1KV / 2.5KV) E-RYB, RY-YB, BR-R"R, Y"Y, B"B. (g) CRM Test (contact resistance) of Vacuum Interrupter R, Y, B in on condition outside of panel. (h) Time test of contract pole by Test kit (in mile second). (j) Function of closing coil, Trip coil, spring charging motor, auxiliary contact, limit switches etc. (k)Checking & lubrication of various interlocks. (l)Submission of test report in standard format of vacuum circuit breaker. |
| 33 | (ii)Tools and plants and testing instruments required for servicing of VCB/ACB shall be arranged by the contractor. (iii)The unit rate quoted shall be deemed to include the cost of grease, lubricating material, cleaning materialetc as required. (iv)After servicing, report shall be furnished in standard format approved by Engineer-in-Charge. |
| 34 | S& F in repairs ACB of Siemens make, of capacity 2000 Amps, 4pole , 415volts,125 KA indoor manual draw out type with microprocessor release fromas per manufacturer standards, all contacts setting checked, readjusted if required, and greased with HP multipurpose grease, all tripping device like manual trip, under voltage, shunt trip release, overcurrent and earth fault tripping device to be tested, adjusted and confirm all tripping device is in healthy condition, check and record IR value of ACB, with 1.1. KV LT megger calibrating ground fault / short ckt, overload relays for tripping & timing complete and rendering test report all as specified and as directed. |
| 35 | Supplying and laying synthetic Rubber insulated mats 3 mm thick for voltage upto 33 KVfor electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as specified and as directed. |
| 36 | M & L for calibration of relaysfor primary current/voltage injection test complete for 33 KV/11KV VCB panels and ACB panels/ DG panels complete all as specified and as directed. |
| 37 | S&F in repair of current transformer 33 KV indoor type of ratio 100/1-1 single phase, 50hz, current ratio 800-400, including removing of old unserviceable CT complete all as specified and as directed. |
| 38 | S&F in repair of potential transformerindoor type, primary voltage 33KV, secondary voltage11 KVsingle phase, 50hz, current ratio 800-400, including removing of old unserviceable PT complete all as specified and as directed. |
| 39 | S&F in repair of 11 KV bus bar supporting spout / insulators 130 mm long, 60 mm dia /as per sample single pole for indoor use400 to 800 Amp suitable for existing panel complete all as directed and as specified. |
| 40 | S&F in repair of Brown 33 KV Epoxy Bus Bar Support Insulators 300 /100 mm dia /as per sample single pole for indoor use400 to 800 Amp suitable for existing panel complete all as directed and as specified. |
| 41 | S&F in repair of fuse indoor type,33 KV,type PTAVT, Amps 3.15, 50hz, current ratio 800-400, including removing of old unserviceable fuse complete all as directed and as specified. |
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