Tender For Special Repairs To External Electric Supply System And Allied Works At Avadi Military Stn Under Ge Avadi
Tender Value
1.46 Crore
Estimated cost
Bid Submission
16 Oct 2026
13 days left
EMD
2.22 Lakhs
Bank guarantee accepted
Document Fee
1000
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Thiruvallur → Tamil Nadu
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Special Repairs To External Electric Supply System And Allied Works At Avadi Military Stn Under Ge Avadi
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 30-Sep-2026 | Date Corrigendum | Date | 16-Oct-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | Item Rate BoQ BoQ_Ver4.0 Item Rate Normal INR Only INR Select, Excess (+), Less (-) Less (-) Tender Inviting Authority: COMMANDER WORKS ENGINEER,CHENNAI Name of Work: SPECIAL REPAIRS TO EXTERNAL ELECTRIC SUPPLY SYSTEM AND ALLIED WORKS AT AVADI MILITARY STN UNDER GE AVADI Contract No: CWE/AVD/ OF 2026-2027 Name of the Bidder/ Bidding Firm / Company : SCHEDULE 'A'(This BOQ template must not be modified/replaced by the bidder and the same should be uploaded after filling the relevant columns, else the bidder is liable to be rejected for this tender. Bidders are allowed to enter the Bidder Name and Values only) NUMBER # TEXT # TEXT # NUMBER # TEXT # NUMBER NUMBER TEXT TEXT # NUMBER # TEXT# TEXT # NUMBER # NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER # NUMBER # TEXT TEXT NUMBER # NUMBER # DATE NUMBER # NUMBER # TEXT # Sl.No. Description of items Item Code / Make Quantity Unit Estimated Rate Addition / Deduction Addition / Deduction Values Currency Conversion against each Item Quoted Currency in INR / Other Currency BASIC RATE In Figures To be entered by the Bidder Rs. P Excise Duty VAT Freight Charges ( Unloading & Stacking) Any Other Taxes/Duties/Levies Other Taxes 2 IIIrd Party i.e DGS&D / RITES etc Inspection Charges @0.34%+Service Tax Less for Cenvat Credit, if any respect of Supplies Under full Excise Duty Category TOTAL AMOUNT With Taxes TOTAL AMOUNT With Taxes TOTAL AMOUNT In Words |
| 2 | Earthwork excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m depth and getting out in soft / loose soil for laying cables / pipes / erection of poles etc complete all as specified and as directed. Note: Excavation shall be carried out manually at certain location where directed by the Engineer-in-Charge to avoid breakage of existing Electrical and water connections. Rate quoted by the contractor shall deemed to be include for the manual excavation. |
| 3 | Removing excavated material (soil) to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed. |
| 4 | Returning filling in soft / loose soil including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified and as directed. |
| 5 | M&L for filling the fine seived excavated dry soil as in cushioning to underground cable 8cm before laying the cable and 15cm after laying the cable and punned down to 18 cm thick complete all as specified.Note: Thickness shall be measured after punning. |
| 6 | M&L for unreinforced precast concrete cable cover, class HV , type 1, flat , size 300mmx180mmx40mm covering protection to the electric cable laid dry flat transversally along the length of cable on sand cushioning complete all as specified and as directed. |
| 7 | Supply, laying, commissioning and testing of HT XLPE insulated, screended, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) 6.35/11 KV suitable for 11000 volts grade (earthed cable) with stranded aluminium conductor of size 95 sqmm 3 core complete all as specifed.Note: (a) For MH Feeder cable shall be laid in HVF premises and necessary permission shall be obtained from HVF before commencement of work by the contractor .(b) The routine tests and acceptance tests as per IS 7098 (Part –II) shall be carried out at factory premises and contractor should submit paid couchers for cable alongwith the test report. |
| 8 | Supply and lay GI tubes, 'light grade' galvanised 80mm bore with all fittings laid in trenches for drawing cables under road/drain crossings etc., complete all as specified and directed. |
| 9 | M&L for cutting of road/path for laying of GI tubing and making the good to disturbed road/ path including provision of PCC 1:2:4 type B-1 using 20mm graded stone aggregate all as specified and directed. |
| 10 | M&L for boring / drilling hole upto 75mm bore under the road without disturbing the top surface of the road in any type of soil by manually for laying cables,pipes etc without disturbing and damaging the road portion by using necessary tools,plants,machinery and equipments as required complete all as specified and directed by Engineer-in-Charge. Note : (a) Necessary infrastructure such as tools, Plants,Machinery and other equipments as required for boring shall be arranged by the Contractor and quoted rates shall deemed to be included in the quoted rate. (b) GI pipe shall be measured and paid separately under relevant items |
| 11 | M&L for plain cement concrete 1:3:6 type C2 using 40 mm graded stone aggregate as in foundation of poles and cable route indicator complete all as specified and as directed. |
| 12 | M&L for cable route indicator oval / rectangular shape of size 200mm x 150 mm x 6 mm thick made out of CI / MS, with letter imbossed as HT UG cable fixed to MS angle iron of size 25 mm x 25mm x 6mm , 450 mm long above ground and 150mm below ground level embedded in PCC 1:3:6 type C1 using 20 mm graded stone aggregate and including two coats of blue / red colour synthetic enamel paint over a coat of zinc chrome primer on exposed steel surface all as specified and as directed. |
| 13 | M&L for Cable end jointing kit for 11 KV (earthed) grade cable for Outdoor type termination heat shrinkable type joint complete with all jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm complete, all as specified and directed. |
| 14 | M&L for Cable Straight through jointing kit for 11 KV (earthed) grade cable for Outdoor/ Indoor type termination cold shrinkable type joint complete with all jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sq mm complete, all as specified and directed. |
| 15 | Design, Supply, Erection, Testing and Commissioning of 11 KV, 630A, 25KA for 3 sec, 3 way Motorized, Outdoor, Extensible RMU along with air insulated bus connected unit for auxiliary supply, type tested in line with latest IEC standards. The switchgear and busbar shall all be contained in a stainless steel enclosure filled with SF6 at 0.3 bar (300 hPa) relative pressure. The RMU tank shall provide full insulation, making the switchgear insensitive to the environment with degrees of protection of IP67. The switchgear operating mechanism shall have an IP2X protection and cable chamber shall have IP3X. The outer enclosure should be IP 54 type tested, should be powder coated with pure polyester based paint, suitable for the site installation conditions. Accidental overpressure due to an internal arc is limited by the opening of the safety valve, at the bottom of the metal enclosure, away from the operator. Plug in type of extensibility must be provided and coupling busbar should not be exposed to air to avoid oxidation of busbars. Extension of cubicle should only require 450mm to handle and the gap between the coupled RMU’s must be within 10mm.11kV 3 Way Ring Main Units |
| 16 | Each of the above Ring Main Unit shall comprise of the followings: (a) Load Break Switch (LBS) each comprising of the following: - 01 Sets (i) 11 KV, 630A, 25kA Motorized Load break switch; with built in line side manual earth switch- 01 No (ii) Potential Transformer- 11KV/110V, 25 VA, Cl-I, Auxilary Transformer, 11KV/Sqr 3/415 Sqr 3, 500 VA with surge suppresor (Rated voltage 9KV) (iii)Suitable ratio CT 400-200/1 A, Class 0.5, 2.5VA for protection- 1 Set(iv) Position indicator through clear front mimic in line with IEC 62271-103- 1 No(v) Live cable indicator with indications (Voltage Presence Indicator) at the front and three inlets provision to check the synchronization of phase- 01 No(vi) Cable box with termination bushing suitable for upto 2 RUN 3Cx300 Sqmm, XLPE cable- 1 No(vii) Fault passage indicator (FPI) with in-built Overcurrent, Short Circuit and earth fault indication (in (N-1) LBS). The FPI should be self-powered and should have internal lithium battery for external indication and setting of FPI in the absence of current- 01 No(viii) Cable Boots suitable for cable size up to 1R*3C*300 sqmm cable- 1 Nos(ix) LBS Status Signals as - LBS On, LBS Off, LBS Earthed, FPI Operated should be given to FRTU.(x) LBS On, LBS Off & FPI Reset should be Control commands from FRTU to LBS- 1 NoNOTE:- LBS shall have 3 positions, open or disconnected, closed and earthed, and will be constructed in such a way that interlocking prevents unauthorized operations. Manual opening and closing will be driven by a fast-acting /snap action mechanism, independent of operator action. LBS and earth switch shall have a min of 1000 (M1) mechanical operations, 100 electrical operations at rated current and 5 nos operations ar rated SC current. |
| 17 | (b) Vacuum circuit breaker (VCB) each comprising of the following:- 2 Sets(i) 11 KV, 630A, 25kA Motorized VCB with spring assisted mechanism and series trip coil; with built in manual line side three position disconnector cum earth switch- 01 No(ii) Position indicator through clear front mimic in lin with IEC 62271-103- 1 No(iii) Self powered /auxiliary powered relay with O/C, S/C, E/F protection. Relay should have a front USB port for laptop interface, LCD display,10 event records, 5 fault records, min 2 setting group and keypad for setting parameters for the relay- 01 No(iv) Suitable ratio CT 100-50/1-1 A, Class 0.5, 2.5VA, 5P10 for protection- 1 Set(vi) Live cable indicator with indications (Voltage Presence Indicator) at the front and three inlets provision to check the synchronization of phases- 1 No(vii) Cable box with termination bushing suitable for upto 1 RUN 3Cx300 Sqmm, XLPE cable- 1 Set(viii) Cable Boots suitable for cable size up to 1R*3C*300 sqmm cable- 1 Set(ix) Breaker Status Signals as - Breaker On, Breaker Off, Breaker Earthed, Relay Operated should be given to FRTU.(x) Breaker On, Breaker Off should be Control commnds from FRTU to Breaker- 1 NoNOTE:- The circuit breakers shall have 2 positions: open or disconnected and closed. A separate and independent 3 position earthing switch and disconnector shall be fitted to open and earth the cables in such way that interlocks prevent all unauthorized operations. An operating mechanism can be used to manually close the circuit breaker and charge the mechanism in a single movement. An independent mechanism shall be fitted for the 3 positions earthing switch and disconnector Circuit breaker shall be fitted with a local system for manual tripping by an integrated push button. There will be no automatic reclosing. Circit breaker shall have a min of 2000 mechanical and electrical operations and 50 nos SC operations. Disconnector and earthswitch shall have a min of 1000 (M1) mechanical operations, 100 electrical operations at rated current and 5 nos operations ar rated SC current. |
| 18 | (C) Air Insulated Bus Connected Unit comprising the following 1 Set(i) Air Insulated enclosure with necessary bus connection- 1 No(ii) 11KV/230V AC, 1KVA control transformer - 1 No(iii) Battery and battery charger, (I/P-230V AC, O/P - 24V DC)- 1 No(iv) As a minimum, the FRTU shall be capable of performing the following functions: (a) Acquiring analog values from Multifunction Transducers or alternativelythrough transducer- less modules and the status inputs of devices from the substation, processing and transmitting to Master stations. Capability to acquire analog inputs from analog input cards receiving standard signals viz current loops 4-20ma, etc.(b) Receiving and processing digital commands from the master station(s) (c) Data transmission rates - 300 to 19200 bps for Serial ports for MODBUS and 10/100 mbps for TCP/IP Ethernet ports(d) Use of IEC 60870-5-104 protocol to communicate with the Master station(s)(e) Use of MODBUS over RS485 interface, Protocol to communicate with the Protection Relay.(f) Have required number of communication ports for simultaneous communication with Master station(s), MFTs.(g) FRTU shall have the capability of automatic start-up and initialization following restoration of power after an outage without need of manual intervention. All restarts shall be reported to the connected master stations.(h) Remote database downloading of FRTU from master station from SCADA/DMS control center.(i) Internal battery backup to hold data in SOE buffer memory & also maintaining the time & date.(j) Communication with at least four master stations simultaneously on IEC 60870-5-104 |
| 19 | (k) RTU shall be capable of acquiring analog values through transducers having output as 4-20 mA, 0-10 mA, 0-+10 mA etc using analog input modules.(l) FRTU shall have one TCP/IP Ethernet port for communication with Master station(s) using IEC 60870-5-104 protocol.(m) FRTU shall one serial RS 485 ports for communication with MFTs to be connected in daisy chain using MODBUS protocol. Minimum 15 analog values (including 4 energy values) to be considered per energy meter- 1 No(n) Connection with adjacent modules will be direct through busbar, via bushing. VT’s and CT’s from the manufacturer and according to IEC61869-3 and IEC 61869-2 respectively shall be accepted. |
| 20 | Note:- (i) RMU degree of protection shall be IP54 for outer enclosure and IP67 for SF6 tank(ii) The make of vacuum interrupter, FRTU offered is the same make as the Ring Main units( or is from the technology partner OEM)(iii) An operator situated in front, lateral and rear (A-FLR 21kA – 3sec, downwards exhaust, for tank as well as cable compartment) of the RMU switchboard during an internal fault will not be exposed to the effects of arcing. Internal Arc Type Test Report for IAC AFLR 25 kA for 3 sec for both tank & cable box should have been for minimum 3 way /3 Function RMU.(iv) Ring Main Units shall be manufactured by OEM only.(v) All operations shall be from front of the RMU, including access to cable bushings. Bushings along the sides or the rear of the RMU are not acceptable.(vi) Contractor shall arrange factory inspection /Visit for the offrs detailed by Accepting Officer during the /fabricationcommencement of work. and test result will be submitted to this office (vii) RMU will be commence in presence of SEI and contactor will fwd a letter for SEI inspection of RMU for testing, till time 10% amt of eqpt will be reserve as security. (viii) Rate of commencement, Platform as per OEM shall be included in the quoted rate. (ix) RMU shall only be manufactured by OEM only. |
| 21 | Supply, installation, testing and commissioning of outdoor type vacuum circuit breaker, 11 KV, 350 MVA Horizontal Drawout type shall be of Platform mounting, sheet steel clad, free standing, and dust & vermin proof. The MS sheet 3.15mm thickness must be as per tested design of manufacturer. The switchboard shall be suitable for 11 KV, 3 Ph.50 Hz , AC system and complete with VCB, air insulated Copper Busbar rated for 630A for 11kV switchboard and suitable for a short circuit capacity of 25 kA for 3 Sec. Switchgear should be as per latest IEC 62271 (62271-1, 62271-100, 62271-200). The shutters which should be provided for Horizontal drawout type with Electrical and Mechanical interlock and automatic safety shutter gear including pad locking arrangement safety purpose must also be of earthed metallic sheet steel only. The shutter mechanism should be coupled with the movement of the withdraw-able truck. Except the busbar compartment. The switchboard shall be painted with light grey, shade no. RAL 7032, both inside and outside with IP-54 ingress protection, Inbuilt Anti-pumping Feature. VB should be Energy management Solution enabled. 1. EMS software should have inbuilt E-mail & SMS trigger functions.2. EMS software must have a separate screen with minimum of 10 Analog Gauges for parameters viewing.3. EMS Dashboard must have provision to show daily as well as monthly comparative energy consumption.4. Must be able to generate Electricity bills directly from software.5. True Close Door Operation as per IEC.6. Individual Shutter Assy for Bus Bar Side & Cable Side.7. By Default Test / Service Indication. 8. Spout with Copper Terminal. Make of VCB: Siemens /Crompton Greaves/ ITE Gurgaon/ L&T/Alstom/ Areva |
| 22 | Metal clad switchgear complete with Vacuum circuit breaker having rupturing capacity upto 350 MVA, rating upto 630Amp 25KA Horizontal Draw out/Horizontal Isolation VCB with following accessories complete all as specified and directed by Engineer-in-Charge.11 KV 350MVA , 630 Amp VCB Horizontal drawout type, vacuum interrupter 01 Set, Motorised/ Manual spring charging mechanism- 230V AC, closing & Tripping coil suitable for 24 V DC, 4 NO + 04 NC Auxilary Switch, on / Off indication, mechanical spring charge/ discharge indication, breaker position indicator, mechanical operating counter, automatic safety shutter, secondary plug in contact, anti pumping relay etc.Current transformer :- 11 KV Epoxy Resing Cast current transformer, CT Ratio 100-50/5+5A, core I CL 1.0 with 15VA burden for metering core II CL 5P 10 with 15VA burden for portection -03 NosPotential Transformer:- 11 KV Epoxy Resin Cast Potential Transformer, Ratio 11/√3 KV/110/√3 V,3 Phase, Drawout type, Core I- CL1.0 with 100 VA burden for metering & Protection.Meters:- Misc Type 96 Sqmm Ammeter with selector switch, Misc type 96 Sqmm Voltmeter with selector switch,Relays(Non drawout case type):- Micro Processed based Non - Directional IDMT, Master trip relay model No AVAJH-13, Trip circuit sup[ervision relay, Auxilary relay-01 NoIndication lamps/ push Button:- RYB indication lamp- 03 Nos, breaker ON/ FF indicating lamps 02 Nos, Spring charging indication lamp - 01 No, Auto Trip indication lamp- 01 No, Trip Circuit healthy indication - 01 No. |
| 23 | Miscellation items:- Trip / Netural / Close switch, Trip circuit healthy push button, fuse/ MCB for AC/ DC Supply, Panel space heater with thermostat, panel illumination with switch, 5 Amp 3 Pin socket with switch, copper busbar, earthing busbar, control fuses, ferrules & wiring, MS Cubical with posder coating, Power pack 24VDC with 7 AH Battery.Note:- (i)Contractor shall arrange factory inspection/ Visit for the Officer detailed by Accepting Officer during the fabrication commencement of work and test result will be submitted to this office (ii) VCB will be commence in presence of SEI and contactor will forward a letter for SEI inspection of VCB for testing, till time 10% amount of equipment will be reserve as security. (iii) Rate of commencement, Platform as per OEM shall be included in the quoted rate. (iv) VCB shall only be manufactured by OEM only. |
| 24 | M&L for earthing complete with galvanized steel earth plate electrode 600x600x6mm thick buried in ground vertical to a depth not less than 2.25 mtrs deep below ground level with top edge of plate not less than 1.5 mtr below normal ground level connected to galvanized GI strip of size 32 X 6 mm and 40 mm dia bore 7.5 mtr long light grade GI protection pipe for earth strip and GI watering pipe 40 mm dia medium grade from the top edge of earth plate fixed with deep cut on one end of pipe and fix from earth plate up to one feet above ground level of other end and plugged watering pipe at top with MS cap and grouted in PCC 1:2:4 of size 30 X 30 X 30 CM etc and 15 CM alternate layer of charcoal and salt around all sides of earth plate all as shown in electric plate no 3 of SSR part I of 2009. Note: All joints either strip to strip of strip to earth plate are fixed with welded joints. |
| 25 | Dismantling old unserviceable ACSR conductor of assorted sizes as in overhead lines from poles and taken on credit complete all as specified and as directed. |
| 26 | Dismantling old unserviceable cross arms of mild steel channel or angle sections etc., from poles and taken on credit complete all as specified and as directed. Note: The porcelain insulators shall also be dismantled alongwith the conductors and taken on credit. |
| 27 | Dismantling old unserviceable electrical poles of any type/size including demolition of PCC work complete and taken on credit complete all as specified and as directed. Total in Figures 0.0 0.0 INR Zero Only 4.0 Construction of chamber for 100mm sluice plates item5 10.0 Nos Quoted Rate in Figures Select 0.0 0.0 Zero Only Quoted Rate in Words INR Zero Only Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 30, 2026
11:30 IST
Tender Published
Tender notice published.
Completed
Oct 16, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 13 daysOct 16, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 13 daysOct 19, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 16 daysTender Documents
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