Tender For Improvement/ Repair In External Electric Infra At Tech And Domestic Area Including Testing/ Maintenance Of Earthing Pits For Power Supply, Lightening Arrestor And Various Eqpts Installed At Air Force Station Yelahanka.
Tender Value
45 Lakhs
Estimated cost
Bid Submission
29 Oct 2026
0 days left
EMD
90000
Bank guarantee accepted
Document Fee
500
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Bengaluru Urban → Karnataka
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Improvement/ Repair In External Electric Infra At Tech And Domestic Area Including Testing/ Maintenance Of Earthing Pits For Power Supply, Lightening Arrestor And Various Eqpts Installed At Air Force Station Yelahanka.
BOQ
| Sl. No. | Item Description |
| 1 | Dismantling & taking out old unserviceable earthing pits including connected materials all as specified and directed. |
| 2 | M&L for earthing complete with galvanised steel earth plate electrode 600mm x 600mm x 6mm 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 normal ground level connected to galvanised earth lead wire of size 4.0mm dia up to a length of 7.5 mtr long by means of nuts, bolts, checknuts, washers of galvanised iron or steel all as shown in electrical plate No. 3 of SSR Part I of 2009 connected to earthing test point or disconnecting / testing link including excavation/ earth work in any strata, removal of surplus soil, GI pipe medium grade 20mm dia for watering and funnel, GI Pipe medium grade 15mm dia for earth lead protection, PCC 1:3:6 type C2 bed and chamber in PCC 1:2:4 type B1 including necessary form work, 10mm thick CI chamber cover with hinge, etc. complete all as specified and directed. |
| 3 | M&L for earthing complete with galvanised steel earth plate electrode 600mm x 600mm x 6mm 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 normal ground level connected to galvanised strip of size 25x4 mm up to a length of 7.5 mtr long by means of nuts, bolts, checknuts, washers of galvanised iron or steel all as shown in electrical plate No. 3 of SSR Part I of 2009 connected to earthing test point or disconnecting / testing link including excavation/ earth work in any strata, removal of surplus soil, GI pipe medium grade 20mm dia for watering and funnel, GI Pipe medium grade 40mm dia for earth lead protection, PCC 1:3:6 type C2 bed and chamber in PCC 1:2:4 type B1 including necessary form work, 10mm thick CI chamber cover with hinge, etc. complete all as specified and directed. |
| 4 | All same as per item No 3 here-in-before but galvanised strip of size 32 x 6mm complete all as specified and directed. |
| 5 | M&L for earthing complete with copper earth plate electrode 600mm x 600mm x3.15mm 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 normal ground level connected to copper strip of 20x3 mm up to a length of 7.5 mtr long by means of nuts, bolts, checknuts, washers of galvanised iron or steel all as shown in electrical plate No. 3 of SSR Part I of 2009 connected to earthing test point or disconnecting / testing link including excavation/ earth work in any strata, removal of surplus soil, GI pipe medium grade 20mm dia for watering and funnel, GI Pipe medium grade 40mm dia for earth lead protection, PCC 1:3:6 type C2 bed and chamber in PCC 1:2:4 type B1 including necessary form work, 10mm thick CI chamber cover with hinge, etc. complete all as specified and directed.Note for item Nos 2 to 5 :(a) Earthing value should be less than 5 ohms for Ser item No 2 to 4 and less than 1 ohms for ser item No 5.(b) If desired value of earth resistance not achieved during testing, the earthing work shall be redone by the contractor at free of cost to achieve the desire value of earthing resistance. The rate quoted by the contractor deemed to be inclusive of the provision. |
| 6 | Material and Labour for maintenance free earthing complete comprising of 17.2 mm dia 3 mtr long Earth electrode of low carbon steel electrode with 250 micron copper bonding, 50 pounds of Ecosafe based environment friendly backfill and suitable clamp, back-fill earthing enhancing compound should strictly be a Eco Safe carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive (like in metals) and should not depend on moisture for conduction. Back-fill compound should be environment friendly, should solidify when mixed water and set like concrete and should not leach /diffuse into the ground. Back-fill compound shall not mixed with any soil while pouring in the bore hole. Test Certificate as per IEC :62561-7 for Back-fill compound shall be submitted alongwith the material. 17.2 OD SS clamp both side, Eco friendly rust proof heavy duty weather proof Polyethylene Earth pit chamber with following dimensions : 254 mm dia (top),330 mm dia (bottom) & 260 mm (height) complete all as specified and directed. |
| 7 | Supply and fix in repairs GI strip of size 25mmx4mm as 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 earthing using clamps & nut bolt as required complete all as specified and directed. |
| 8 | All same as per item No 7 here-in-before but 4mm dia galvanised iron wire complete all as specified and directed. |
| 9 | Supply and fix in repairs aluminium strip 25 mm x 3 mm complete with saddles and fixing screws etc for roof conductors and down conductors above ground level and fixing upto 20 mtr height including removing u/s strips complete all as specified and directed. |
| 10 | Supply and fix in repairs copper strip 20mm x 3 mm complete with saddles and fixing screws etc for roof conductors and down conductors above ground level and fixing upto 20 mtr height including removing u/s strips complete all as specified and directed. |
| 11 | All same as per item No 10 here-in-before but Galvanised iron strip 32 x 6mm complete all as specified and directed. |
| 12 | Supply and fix in repairs single pointed air termination aluminium rod, 12 mm dia, 300 mm long and fixing upto 20 mtr height complete all as specified and directed. |
| 13 | S&F in repair porcelain strip holder on wall and roof of suitable size including removing broken u/s one complete all as specified and directed. Note for item Nos 6 to 13 : (a) Repairing/replacing/fixing work shall be carried out upto 20 mtr height on hangars/tech buildings/Over Head Water Tanks. (b) Necessary T&P such as Ladder/Crane and like as required for execution of work shall be borne by the contractor. (c) The rate quoted by the contractor deemed to be inclusive of all the above provision. |
| 14 | M&L for earth indicators made of 2 mm thick MS sheet of oval/Triangular/Rectangular shape of size 30 cm x 20 cm duly fixed over MS angle iron of size 25 x 25 x 3mm in size 0.9 metre in total length and 30 cm embedded in below ground level and 60 cm above ground level and angle iron embedded in cement concrete of 1:3:6 type C-2, of size 30 cm x 30 cm x 30 cm painting the steel surfaces with two coats of red paint for chemical earpits and yellow paint for Lightining Arrester( LA), Power Supply(PS) earth pits over coat of red oxide and writing the earth pit indication in alphabets with black colour of one inch height and marking all as per the direction of Engr -in-Charge and including necessary earth work and returning filling and removal etc all as specified and directed. |
| 15 | M&L for providing earthing chambers madeup of PCC 1:2:4 type B1,(using 20mm graded stone aggregate) including necessary formwork over 75mm thick PCC bed, 1:3:6 type C2 (using 40mm graded stone aggregate) with provision of 10mm thick CI chamber cover with hinge all as per electrical plate no.3 of SSR part-I including demolition of old unserviceable earthing chamber complete all as specified and directed. |
| 16 | M&L for Test point terminal box made of gun metal or phosphorous bronze, size 75x75x25 mm drilled and screwed including 3 Nos 8 mm dia 25 mm long hexagonal head screw including removing the existing all as specified and directed.u/d test point terminalblock complete all as specified and directed. |
| 17 | M & L for recharging of normal earth pits by excavating the earth at a radius of 600mm from the centre from the earth pit and at a depth of 900mm after removing the earth chambers and accessories carefully and keeping aside for reuse including adding and spreading Charcoal 10 Kg and Salt 10 Kg in 75mm layers each at ground level and watering, refixing the earth chambers and accessories after allowing the soil to settle down complete all as specified and directed. |
| 18 | M&L for Testing of existing earthing resistance with suitable digital Earth tester and recording the readings obtained including making the earthing good by pouring the salt water complete up to the satisfaction of the Engr-in-Charge complete all as specified and directed. |
| 19 | M&L for Testing of existing earthing resistance with suitable digital Earth tester and recording the readings obtained complete all as specified and directed.Note of item Ser No 18 & 19 : (a) Value of earth resistance should be less than 1 Ohms for equipments earthing and less than 5 ohms for LA & Power Supply earthings.(b) A register will be maintained for building/establishment/ section wise (for Equipment earthing, LA, Power etc) duly obtaining the sign of the user. |
| 20 | Supply and fix in repairs 10 mm dia and 1000 mm length solid aluminium blunt tip Air termination with Base plate (Vertical air terminal with accessories:Providing of Air terminals as per IS-IEC -62305) along with concrete block for fixing AT on Terrace with all mounting accessories complete all as specified and directed. |
| 21 | Supply and fix in repair 8 mm dia solid Aluminium Conductor for roof top mesh grid meets the requirement of IS IEC 62305 (As specified in Drawing) complete all as specified and directed. |
| 22 | Supply and fix in repair conductor holding clamp suitable for mesh grid Conductor holder each at 1 meter distance to meets the requirement of IS IEC 62305 complete all as specified and directed. |
| 23 | Supply and fix in repair cross universal connector for T and cross connection, to route vertical down conductor /mesh formation meet the requirement complete all as specified and directed. |
| 24 | Supply and fix in repair Expansion Piece with connector to compensate the expansion and contraction of Solid Round Al. Conductor during temperature variations to be provided on conductors length over 20 meters with Expansion Piece Connector for to connect Solid Round Al. Conductor at both ends to meet the requirements of IS/IEC 62305 complete all as specified and directed. |
| 25 | Supply and fix in repair Straight Splicers for Aluminium Conductor meet the requirement of IS IEC 62305 tested as per IS IEC 62561-7 Standard complete all as specified and directed. |
| 26 | Supply and fix in repair test link in order to disconnect the earth termination system for enabling measurements. to connect Aluminium round conductor to Ring Earthing complete all as specified and directed. |
| 27 | Supply and fix in repair 10 mm copper bonded Round steel solid Conductor in compliance with IS/ IEC 62305 and IEC 62561-2. The coating shall be smooth, continuous & free from flux stains(Ring Earthing) should be tested and use exclusively for lightning protection ,earthing system and ring equipotential bonding complete all as specified and directed. |
| 28 | Supply and fix repair conductor holding clamp suitable for 10mm Cu. Bonded Steel Conductor complete all as specified and directed. |
| 29 | Supply and fix in frepair SS Straight Connector for connecting Ring Conductor suitable for 10mm Cu. Bonded Steel Conductor to meet the requirement for IS/IEC-62305 complete all as specified and directed. |
| 30 | Supply and fix repair SS Cross Splicer -Providing of cross universal connector For T and cross connection, to route vertical down conductor with stud connection meets the requirements of IS / IEC 62305 complete all as specified and directed. |
| 31 | Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m deep for laying of cables, pipes, foundation for poles etc., and getting out in hard/dense soil all as specified and as directed. |
| 32 | Returning filling in excavated soil upto a depth of 30 cm after riddling of excavated soil (in lieu of sand) for cushioning of cable and refilling of trenches with left over normal excavated soil including spreading, leveling, watering and well ramming in layers complete all as specified and as directed. |
| 33 | Removing surplus soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point as directed. |
| 34 | Supplying and laying un-reinforced precast concrete cable cover, class LV, Type 1 with peak, size250 mm x 150mm x 40mm all as specified and as directed. |
| 35 | Supply and laying in trenches, LT underground cable of size 16 Sqmm 4 core XLPE insulated armoured and PVC sheathed 1100 Volts grade with aluminium conductor multistranded including cable connecting lugs, glands,jointing materials etc., laid in trenches, floors, roof, ducts and fixing using clamps, saddle for pole, wall including taking down complete all as directed. |
| 36 | All as per item No 35 here-in-before but 25 Sqmm 3.5 core |
| 37 | All as per item No 35 here-in-before but 35 Sqmm 3.5 core |
| 38 | All as per item No 35 here-in-before but 50 Sqmm 3.5 core |
| 39 | All as per item No 35 here-in-before but 70 Sqmm 3.5 core |
| 40 | All as per item No 35 here-in-before but 95 Sqmm 3.5 core |
| 41 | All as per item No 35 here-in-before but 120 Sqmm 3.5 core |
| 42 | All as per item No 35 here-in-before but 240 Sqmm 3.5 core |
| 43 | All as per item No 35 here-in-before but 300 Sqmm 3.5 core |
| 44 | Note : For Sl No 35 to 43, necessary excavation and connected items shall be measured and paid separately under respective items of this schedule. |
| 45 | M & L for boring of holes under roof, pavement, hardstanding by trenchless technology and necessary machine including GI pipe of 50/80/100mm dia suitable for 0.4mpa working pressure complete all as directed. |
| 46 | Supply and laying GI tubing light grade 50mm dia in trenches/fixing on pole /wall/crossing in drain etc.for protection of UG cable complete all as directed. |
| 47 | Supply and laying GI tubing light grade 80mm dia in trenches/fixing on pole /wall/crossing in drain etc.for protection of UG cable complete all as directed. |
| 48 | Supply and fix cable route indicator made out of 3 mm thick MS sheet of size 30 cm x 20 cm duly painted with two coats black paint over a coat of red oxide primer and writing cable direction, capacity, size of cable with white paint, mounted on angle iron 50x50x3 mm, angle height 75 cm, (30cm below ground level and 45 Cm above ground level ) with PCC 30cmx30cmx 30cm all as specified and as directed. |
| 49 | Supply, installation and commissioning in repair LT out door loop in loop out terminal box with sloping canopy of size 600x450x250mm made out of 3 mm thick CRCA sheet duly painted with two coats of synthetic enamel paint over a coat of rex oxide, front and rear hinged doors mounted on 40x40x6 mm MS angle iron frame 90 cms height erected in ground with PCC foundation 1:4;8 with 40mm stone aggregate including supply and fixing insulated aluminium bus bar of size 50x 6mm for three phase and neutral 200mm length respectively mounted on insulators and terminating with suitable cable with glands and provision of one MCCB 63 Amps 4 pole ,415 Amps, 50 Hz of breaking capacity 16 KA as incomer including taking down old terminal boxes complete all as specified and directed. |
| 50 | Supply, install, testing and commissioning inrepairs of LT Panel board CPRI approved outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 500 Amps rating mounted on porcelain insulators .The panels shall be factory made, double door, made out of 3.15 mm thick MS sheet totally enclosed dust, vermin and rust proof front operated, front and rear opening with locking arrangement fixed with MS angle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable size incl lugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following: INCOMING MCCB 4 pole 200 Amps 25 kA With thermal and magnetic release - 01 Nos OUTGOING MCCB 4 pole 100 Amps 25 kA With thermal and magnetic release - 01 Nos MCCB 4 pole 63 Amps 25 kA With thermal and magnetic release - 01Nos MCCB 3 pole 40 Amps 16 kA With thermal and magnetic release- 01 Nos Multifunctional VAF meter, PF meter - 1 No RYB Neon indicating lamp -1 set of three for each outgoing and incoming MS work incl angle iron frame and PCC work Space for mounting of additional MCB In future. Internal wiring including copper lugsNote: Bottom portion of the Panels should minium 45 cmm above the ground level and 30 CM below ground level |
| 51 | Supply, install, testing and commissioning inrepairs of LT Panel board CPRI approved outdoor type, floor mounted, factory made suitable for 415 volt, 3 PH, 4 wire, 50 HZ, AC supply system having bus bars chamber with aluminium bus bars duly insulated by insulation of RYB colour 500 Amps rating mounted on porcelain insulators .The panels shall be factory made, double door, made out of 3.15 mm thick MS sheet totally enclosed dust, vermin and rust proof front operated, front and rear opening with locking arrangement fixed with MS angle iron frame of size 50X50X5 mm duly embedded in PCC platform and duly powder coated with 7 tank process with colour as directed including internal wiring with multistranded copper conductor cable of suitable size incl lugs and cable gland to incoming and outgoing cable all as directed at site and comprising of the following: INCOMING:- MCCB 4 pole 160 Amps 35 kA with thermal and magnetic settings - 01 Nos OUTGOING:- MCCB 4 pole 125 Amps 25 kA, with thermal magnetic settings - 01 Nos MCCB 4 pole 63 Amps 16 kA - 01 Nos MCB DP 32 Amps 16 kA - 01 Nos Multifunctional VAF meter, PF meter - 1 No RYB Neon indicating lamp -1 set for each outgoing and incoming MS work incl angle iron frame and PCC work Space for mounting of additional MCB In future. Internal wiring including copper lugsNote: Bottom portion of the Panels should minium 45 cmm above the ground level and 30 CM below ground level |
| 52 | Fabricate, supply ,install testing and commissioning inrepairs of LT panel intdoor type 415 Volts, 50 Hz, 3 phase, 4 wire for accomodating the following accessories totaly enlosed self supporting structure fully compartmentalized suitable for indoor use with bottom cable entry with suitable cable glands made out of CRCA sheet 2mm thick with angle iron frame works with suitable legs of ISA 50x50x5mm with four legs grouted PCC (1:2:4) type B1, foundation block with suitable monting arrangement for aluminium bus bars 400 Amps capacity, hindged door at front with suitable locking arrangement, provision of louvers at sides, CPRI approved, dust and vermin proof, powder coated and with following asseccories suitable for incoming/outgoing arrangements complete all as specifed and directed(a) 4 Pole MCCB 250 Amp, 50 Hz, 415 V,36 KA , with thermal and magnetic setting , Incomer -1 No(b) 4 Pole MCCB 200 Amp, 50 Hz, 415 V,25 KA with thermal and magnetic setting , Incomer, -01 No(c) 4 Pole MCCB 160 Amps 50 Hz 415 V, 25 KA with thermal and magnetic setting , Incomer-01 nos (d) SPN MCB 32 Amp , 10 KA-01 Nos (e) Digital VAF meter -01 No(f) CT's 200/5- set of 3 No(g) LED type Indication lamps (RYB)-one set with each incoming and outgoing Note: Bottom portion of the Panels should minium 45 cmm above the ground level and 30 CM below ground level |
| 53 | Supply and fix in repair MCCB 400 Amps, 4 pole 415 Volts,50 Hz,36 KA adjustable thermal setting type and confirming to IEC 60947-II complete all specified and directed. |
| 54 | Supply and fix in repair MCCB 315 Amps, 4 pole 415 Volts,50 Hz,36 KA adjustable thermal setting type and confirming to IEC 60947-II complete all specified and directed. |
| 55 | Supply and fix in repair MCCB 200 Amps, 4 pole 36 KA adjustable thermal setting type and confirming to IEC 60947-II complete all specified and directed. |
| 56 | Supply and fix in repair MCCB 125 Amps 4 pole 25KA, adjustable thermal setting type and confirming to IEC 60947-II complete all specified and directed. |
| 57 | Supply and fix in repair MCCB 100 Amps 4 pole 25KA adjustable thermal setting type and confirming to IEC 60947-II complete all specified and directed. |
| 58 | Supply and fix in repair MCCB 63 Amps 4 pole 16KA adjustable thermal setting type and confirming to IEC 60947-II complete all specified and directed. |
| 59 | Supply and fix in repair energy saving rectangular LED flood light fitting 150 Watts, 240 volts AC, cool white colour, CCT 5700°K, CRI>70, THD<10%, system lumens not less than 100lumens/watt with innovative thermal management, available with multiple optics, equipped with IP-66 protection, 5 KV surge protection, aluminium die cast housing, life of luminaires should not be less than 50000 burning hours and suitable for large area lighting including fixing on High mast pole/Buildings/TARMAC poles etc. by means of clamps, nuts, bolts and any other accessories complete all as specified and as directed. |
| 60 | Servicing, cleaning and repairing by dismantling and taking out air circuit breaker 400/630/800 amps capacity 3 pole 415 volts 50 Hz and removing mechanical assembly fixed and moving contact set and replacing mechanical parts like spring, bushes, levers and checking for worn out contacts, overvoltage and under voltage settings and replacing the following electrical parts (i) fixed contact assembly (ii) moving contact assembly, (iii) pole assembly (iv) Arc chute. Reassembling, testing and commissioning completely all as directed by Engineer in chargeNote:- Replacement of unserviceable electrical parts will be measured and paid for separately under relevant items of this schedule. |
| 61 | Supply & fix contact assembly for 630/800 Amps 3 pole 415 volts ACB all as specified and as directed. |
| 62 | All as per item No 61 here-in-before but 400 Amps capacity |
| 63 | Supply & fix moving contact assembly for 630/800 amps 3 pole 415 volts ACB all as specified and as directed. |
| 64 | All as per item No 63 here-in-before but 400 Amps capacity. |
| 65 | Supply & fix pole assembly for 630/800 amps 3 pole 415 volts ACB all as specified and as directed. |
| 66 | All as per item No 65 here-in-before but 400 Amps capacity. |
| 67 | Supply & fix Arc chute for 630/800 amps 3 pole 415 volts ACB all as specified and as directed. |
| 68 | All as per item No 67 here-in-before but 400 Amps capacity. |
| 69 | Supply & fix charging motor for 630/800 amps 3 pole 415 volts ACB all as specified and as directed. |
| 70 | All as per item No 69 here-in-before but 400 Amps capacity. |
| 71 | Supply & fix control relay for charging motor for 630/800 amps 3 pole 415 volts ACB all as specified and as directed. |
| 72 | All as per item No 71 here-in-before but 400 Amps capacity. |
| 73 | Supply and fix in repair glow signage boards with base frame made from angle iron and backside form ACP sheet 3mm thick with IP 68 Protection LED module , good quality virgin monomer Acrylic sheet , MES Logo & Southern Command logo in letters with 5 mm sun board channel , including complete wiring and power supply with IP 68 protection , each letter will be made with computer offset for having same letter style and type as approved by Engineer - in- charge, complete all as specified and directed.Note : Layout of display board will obtained from Engr - In - charge before placing the order Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Oct 08, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedOct 29, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
TodayNov 05, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
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