Kerala State Electricity Board-KSEB has published Idamalayar Hep Erection Of Switchyard Equipment Erection Of Switchyard Equipment For Two 110Kv Feeders In Connection With Bay Extension Work At Idamalayar Generation Division. Submission Date for this Tender is 02-07-2022. Feeder Pillar Tenders in Ernakulam Kerala. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Loading one 110/66KV CT / CVT / PT / CC from the place of its storage to department lorry using required lifting device without causing any damage to equipment and its parts. |
| 2 | Unloading one 110/66KV CT/PT/CVT/CC from department lorry to substation site using suitable lifting device and dragging to safe place without causing any damage to CT as per the direction of the department officers. |
| 3 | Loading one set 110/66KV Circuit breaker with its interrupting poles, mechanism box, structures and all its accessories safely without causing any damage using necessary lifting devices to department lorry and fastening for transportation. |
| 4 | Unloading one set 110/66KV Circuit breaker with its interrupting poles, mechanism box, structures and all its accessories safely without causing any damage using necessary lifting devices from department lorry to substation site and stacking properly for safe storage. |
| 5 | Loading one set 110/66KV Bus Isolator with its insulator stacks, supporting channels, connecting pipes, isolating rods, mechanism box, structures and all its accessories safely without causing any damage using necessary lifting devices to department lorry and fastening for transportation. |
| 6 | Unloading one set 110/66KV bus isolator with its insulator stacks, supporting channels, connecting pipes, isolating rods, mechanism box, structures and all its accessories safely without causing any damage using necessary lifting devices from department lorry to substation compound and stacking properly for safe storage. |
| 7 | Loading one set 110/66KV Line Isolator with its insulator stacks, supporting channels, connecting pipes, isolating rods, earth switches, mechanism box, structures and all its accessories safely without causing any damage using necessary lifting devices to department lorry and fastening for transportation. |
| 8 | Unloading one set 110/66KV Line isolator with its insulator stacks, supporting channels, connecting pipes, isolating rods, earthing rods, mechanism box, structures and all its accessories safely without causing any damage using necessary lifting devices from department lorry to substation compound and stacking properly for safe storage. |
| 9 | Loading one 110/66KV LA from the place of its storage to department lorry, if required, after dragging up to 50M using suitable lifting device carefully without causing any damage to equipments and fastening in the lorry make it ready for transportation as per the direction of the department officers. |
| 10 | Unloading one 110/66KV LA from department lorry to substation site using suitable lifting device and dragging to safe place without causing any damage to LA as per the direction of the department officers. |
| 11 | Loading MS / GI materials hard ware fittings of line work and clamps for equipments and bus from the place of its storage to department lorry and make it ready for transportation as per the direction of departmental officers. |
| 12 | Unloading MS / GI materials, hard ware fittings of line work and clamps for equipments and bus from department lorry to substation site and stacking for proper storage as per the direction of departmental officers. |
| 13 | Erection of 1 No. 110/66KV CT/PT/CVT/CC/220KV NCT on the already erected structure of above 1.5m height after opening of crates at the place of storage, leading to site carefully keeping at vertically not allowing tilting from vertical position more than the specified angles, keeping lines and levels as per the direction of the departmental officers, including all labour charges, hire charges of tools& tackles etc. |
| 14 | Erection of 1 No. 110/66KV LA/Post insulator on the already erected structure after opening of crates at the place of storage leading to site carefully, keeping lines and levels as per the direction of the departmental officers. |
| 15 | Unpacking carefully and leading one set of 3 pole EHT110/66KV Circuit Breaker from the place of storage, including support structure , mechanism box compressor, pipe lines etc. to site , cleaning and erecting on foundation using suitable lifting tools, after disassembling necessary parts if required, to lines and levels and assembling all the parts , connecting mechanism etc. in complete shape and making ready for commissioning as per the direction of departmental officers. |
| 16 | Erection of one set 110/66KV Bus Isolator on the already erected structure including opening crates and conveyance of all accessories from the place of storage to the place of erection to lines and levels, erection of mechanism box , checking operation and aligning properly, including cutting, welding etc.complete as per the direction of departmental officers. |
| 17 | Erection of one set 110/66KV line Isolator on the already erected structure including opening crates and conveyance of all accessories from the place of storage to the place of erection to lines and levels including erection of mechanism box checking operation and aligning properly as per the direction of departmental officers. |
| 18 | Uncoiling, paving out, stringing and fixing of bus bar using ACSR Kundah / Moose single conductor for one phase of 66/110KV bus of span up to 30M by cutting the conductor to sufficient length, crimping using compressor / bolting the two ends, washing, cleaning and drying the insulator discs, fixing the conductors to the yard structure with sufficient tension using string of insulators and hardware complete. at both ends, fixing of arcing hornes including transportation of materials from the stockyard to the site under the supervision and direction of department staff at site.(All materials will be supplied departmentally at free of cost). |
| 19 | Providinginterconnection between equipments using ACSR Moose/ Kundah/ wolfSingle conductor at both ends with compressed/ bolted ends including uncoiling and cutting of conductor as per the direction of departmental officers. |
| 20 | Providing droppers and connecting to lines / equipments or jumper between two buses without suspension insulators using ACSR Moose/ Kundah/ wolfSingle conductor at both ends with compressed/ bolted ends including uncoiling and cutting of conductor as per the direction of departmental officers. (For one phase) |
| 21 | Fixing departmentally supplied marshalling kiosk in the existing PT/CT structure by making suitable fixing arrangements including cutting , welding, drilling holes etc as required. |
| 22 | Uncoiling 12/7/6 core 2.5 sq mm control cable (armoured and un armoured) from cable drums and cutting to required length and laying through trench/pipe/cable tray grouping the same neatly using cable tie and carefullyincluding for providing loops wherever necessary and cable marker, at both ends of cable as per direction of departmental staff at site. |
| 23 | Uncoiling 4/2 core 2.5sqmm control cable (armored or unarmored) from cable drums and cutting to required length and laying through trench/pipe/cable tray neatly and carefully including for providing loops wherever necessaryand cable marker at both ends of cable as per direction of departmental staff at site. |
| 24 | Uncoiling 5/4/3/2 core 4sqmm control cable(armoured or un armoured) from cable drums and laying through trench/pipe/cable tray neatly and carefully including for providing loops wherever necessaryand cable marker at both ends of cable as per direction of departmental staff at site. |
| 25 | Uncoiling 20/19 core 2.5sqmm, 12 core 4 sqmm control cable (Armoured or un armoured) from cable drums cutting to required length and laying through trench/pipe/cable tray grouping the same neatly using cable tie and carefullyincluding for providing loop wherever necessary and providing cable marker at both ends of cable as per direction of departmental staff at site. |
| 26 | Fixing all type of terminal connecting strip with terminal connectors in the marshalling box or panel boardwherever necessary (terminal connecting strip will be supplied departmentally ) charges includes for providing necessary suitable hole etc complete as per direction of departmental staff at site. |
| 27 | Termination of cables in panel by using cable glands of fixing the cable rigidly by any means as per direction of departmental staff at site charges include for providing necessary suitable hole in the gland plate etc. |
| 28 | Doing termination of all sizes of PVC insulated copper control cable 2.5mm², pealing, providing number and letter ferrules in the wire, stripping ends, crimping with suitable lugs and connecting to the terminals in the panel board and marshalling kiosk etc., neatly and carefully including cost of copper sockets and ferrules as per the direction of Departmental Officers at site. |
| 29 | Doing termination of all sizes of PVC insulated copper control cable 4.0 mm², pealing, providing number and letter ferrules in the wire, stripping ends, crimping with suitable lugs and connecting to the terminals in the panel board and marshalling kiosk etc., using cable tieand cable tie neatly and carefully including cost of copper sockets and ferrules as per the direction of Departmental Officers at site. |
| 30 | Making of cable clamps using 25x 3 mmGI strip (hot dipped)as per no of cablesin cable tray cutting and holing to required length and for fixing as per the direction of departmental officers at site including supply of suitable nut and bolts |
| 31 | Transportingby head load, the materials issued departmentally to the site from the place of storage and distribution to erection site. (Distance to be specified ) |
| 32 | Drilling holes in yard structure |
| 33 | Erection of yard structures and assembling of columns and beams using bolt and nut including punching of holes. |
| 34 | Dismantling charge for structure is 50% oferrection charge |
| 35 | Pulling the power transformers of weight 20T to 30T, on the rail track, travelling for a distance up to 30M, using sleepers, rails, jacking, pulling and keeping ready for placing on the correct plinth as per the direction of departmental officers at site, safely without damaging any equipments and observing all safety precautions. |
| 36 | Covering the transformer with tarpaulin using ropes, bamboos etc. |
| 37 | Giving three phase connection to the filter unit from the supply mains using cable including fitting three numbers of fuse units near the filter unit and laying the cable from control room to filter unit and trial run of filter unit after giving connection etc. complete. ( Only iffound absolutely necessary and where departmental staff is not available ). |
| 38 | Hot oil circulation after draining oil from transformer, evacuating the transformer by using vacuum pump after providing LT connection to the pump , connecting the hose to transformer, operating carefully and continuously for attaining sufficient vacuum and keeping in vacuum for 24 hours and operating filter unit carefully and continuously for 24 hours except halt due to poor voltage and trouble in filter plant etc complete as per the direction of dept. officers. |
| 39 | Disconnecting the power connections to the filtering plant/ vacuum pump, coiling the cable, disconnect the hoses and coiling them and folding and removing tarpaulin used for covering the transformer, moving the filter plant and vacuum pump to a distant place as directed by the department staff. ( where departmental staff is not available and is found absolutely necessary). |
| 40 | Oil draining using 5000LPH capacity oil filtering plant after placing the filtering plant in a suitable place near to the transformer and empty tank. Operating the plant and filling the old oil in to empty oil barrel and shifting the same to a distance up to 50M for safe storage from a10/12.5 MVA110 or 66/11kV transformer. |
| 41 | Filling the filtered oil into the main and OLTC tank then conducting hot oil circulation till to obtain a satisfactory value of Megger and BDV for the oilincluding collecting of sample and taking BDV in each interval, taking Megger reading etc. and after filtering provide the breather. |
| 42 | Turning the transformer of weight 20T to 30T,up to 90 degree using required tools safely and taking all precautions as per the directions of the departmental officers ( only if it is absolutely necessary and where departmental crane is not available) |
| 43 | Dismantling the accessories of Transformer such as EHT and HT bushings, conservator tank, connecting pipes, bucholtz relay, radiator etc. using the required tools and leading the same for safe storage. |
| 44 | Re-assembling of all accessories like HV & LV bushings, conservator tank, all pipelines, cooling fins valves and relays etc. |
| 45 | Connecting Vacuum Pump and creating vacuum pressure up to -760 Hg/mm and keeping the same for 24 Hours and monitor the same after leading the plant to yard including connecting equalising connection for OLTC. |
| 46 | Stringing and fixing earth wire of size 7/9, 7/10 or 7/3.15 between top of the columns and to terminal tower at 33/66/110/220KV substations with compressed / bolted ends at proper tension including uncoiling and cutting of conductor , jumpering, giving earth bond connections by drawing the end of the conductor through the columns, jointing where ever necessary providing back stays at the time of stringing etc. as per the direction of the departmental officers. |
| 47 | Welding one end of the bended GI strip of size 50x6mm with the riser of the already laid earth mat, welding 150mm in length, 6mm thick on both sides & end of the strip & other end of the strip with yard structure at 2 points 50mm apart each welding points having 50mm length and 6mm thick on both sides & end of the strip including the charges for connecting the strip with structure using bolted joints as per the directions of the department officers. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes(No.E7018) cost of anti corrosive paint etc. complete. |
| 48 | Welding overlapping joints of 50x6mm GI strip with 50mm long, 6mm thick welding on all three sides after doing 2 Nos. bolted joints at the centre as specified after cleaning the surface. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes( No.E7018) cost of anti corrosive paint etc. complete. |
| 49 | Welding one end of the bended GI strip of size 50x6mm with the riser of the already laid earth mat, welding 150mm in length, 6mm thick on both sides & end of the strip and connecting other end with nuts & bolts if required as per the directions of the department officers. Charges includes hire charges of DC arc welding set, current charges, cost of low hydrogen content DC arc welding electrodes(No.E7018) cost of anti corrosive paint etc. complete. |
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