Military Engineer Services Tender

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The MES has issued a formal invitation for competitive bids for the Military Engineer Services project, for Special Repairs For Replacement Of 04 Pole Structure With Rmus At Wed V Under Ge U-i Visakhapatnam in Visakhapatnam, Andhra Pradesh, with an estimated contract value of Rs. 43,50,000. The bid opening date for this tender is 15-03-2024 and the last date for bid submission is 12-04-2024. Interested bidders for Military Engineer Services tender can download the important documents here to check the scope of work, eligibility criteria and technical requirements.

Military Engineer Services - MES Tender

Works
Civil And Construction
Civil Works Others
Eprocure
Opening Date15 Mar 2024
Closing Date12 Apr 2024
Tender Amount₹ 43,50,000 
Notes
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S & F Cable End Termination, Heat Shrinkable, Outdoor type suitable for 11 KV Grade, 3 Core, 240 Sq.mm, HT, XLPE Insulated, Armoured Power Cable Aluminium Conductor and testing after jointing complete all as specified and as directed. Make: M-Seal/ Birla-3M/ Denson/ Raychem

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Dismantling and Taking down existing 2 Pole Structure complete including ACSR Conductors, GoAB switches, lightning Arrestors, DO fuses, Cross Arms, Insulators and all other accessories and breaking concrete foundation, removing debris outside MD Land and making good the surface to match with the existing complete all as specified and as directed.

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Dismantling and Taking down existing 4 Pole Structure complete including ACSR Conductors,GoAB switches, lightning Arrestors, DO fuses, Cross Arms, Insulators and all other accessories and breaking concrete foundation, removing debris outside MD Land and making good the surface to match with the existing complete all as specified and as directed.

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Make of RMU/ VCB/ Vacuum Interrupter/ Relays/ FRTU : ABB/ SIEMENS/ SCHNEIDER

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Notes: [a] An operator situated in front, lateral and rear [A-FLR 21 kA – 1 Sec, Downwards Exhaust, for Tank as well as Cable Compartment] of the RMU Switch board during an internal fault shall not be exposed to the effects of Arcing. Internal Arc Type Test Report for IAC AFLR 21 kA for 1 Sec for both Tank & Cable Box shall be for minimum 3 Way / 3 Function RMU. [b] 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. [c] Construction of Plinth / Foundation for 11KV RMU: The rate quoted is deemed to be including the cost of Plinth / Foundation and shall not be paid as extra on this account. The foundation shall consists of Two Parallel Brick Walls built using bricks straight or curved on plan to any radius built in Cement Mortar 1:6 of length 2.10m, suitable thickness and height as per the manufacturer’s instructions over PCC Concrete Bed of 150mm thick in PCC 1:4:8, Type D-2, using 40mm graded stone aggregate over 150mm thick Hardcore of gauge not exceeding 63mm of broken stones or boulders, deposited, spread and levelled in layers not exceeding 15 cm thick watered and rolled, over 150mm thick Sand Bed, rendering to brick surfaces, 15 mm thick in Cement Mortar 1:4, and finishing the top surface even and smooth without using extra cement, applying Three coats of white washing including earthwork excavation of pit size 2.10 X 1.20 X 0.60 Metres complete all as per manufacturer’s recommendations, drawings, as specified and as directed. [d] The rate quoted is also deemed to be including the cost of disconnection of HT Cables up to 3 Core, 240 Sq.mm from existing 2 Pole / 4 Pole Structures, removing of cable loop and reconnection to RMU complete all as specified and as directed by the Engineer-in-Charge. [e] End termination joints shall be measured and paid separately. [f] The make of RMU/ VCB/ vacuum interrupter/ Relays/ FRTU offered shall be of same make. Different makes shall not be accepted.

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S & F Cable End Termination, Heat Shrinkable, Outdoor type suitable for 11 KV Grade, 3 Core, 185 Sq.mm, HT, XLPE Insulated, Armoured Power Cable Aluminium Conductor and testing after jointing complete all as specified and as directed. Make: M-Seal/ Birla-3M/ Denson/ Raychem

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Earthing complete with Galvanised Steel Earth Plate Electrode 600 X 600 X 6 mm thick burried directly in ground [earth pit not less than 2.25 m deep below ground level] with top edge of Plate not less than 1.50 m below normal ground level connected to 32 X 6mm GI Strip [Earth Lead] and GI pipe 50 mm, Medium Grade for earthing lead protection to the extent of maximum 7.5m, Earth Plate Electrode surrounded by 150mm thick packed layers of Charcoal and Common Salt filled in alternate layers, connected to the Plate by means of GI Bolts & Nuts complete all as per Electrical Plate No. 3 of SSR Part – I, connected to panel / DB including testing on completion including main earthing, Charcoal, Common Salt, PCC [1:2:4, Type B1] Pit with RCC 1:2:4, Type B1 Cover, 50 mm thick with 6 Nos, 8 mm dia TMT bars in both ways, MS frame made with 40 X 40 X 6 mm Angle Iron, MS Funnel with 20 mm bore, medium grade GI Watering pipe, wire mesh, earth work excavation, return filling, removal of surplus soil etc. and disconnecting and taking down existing Earthing of any description and making good disturbed surfaces complete all as specified and as directed.

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[B] Each Vacuum Circuit Breaker [VCB] shall be comprising of the following: [i] 11 KV, 630 Amps, 21 kA/ 3s, 3 Pole Motorised VCB (Non draw out type) with 3 pole manual disconnector and 3 pole manual earth switch, Motorized Spring Assisted Mechanism and Series Trip Coil – 1 No. [ii] Self Powered Relay with O/C, S/C, E/F Protection. Relay shall have a Front USB for Laptop Interface, LCD Display, 10 Event Records, 5 Fault Records, min 2 setting group and keypad for setting parameters for the relay – 1 No [iii] Resin Cast ring core Protection CT, Plate mounted type : 100-50/1A, 5P10, 2.5 VA-01 Set. [iv] Resin Cast ring core Metering CT, Plate mounted type : 100-50/1A, Cl. 1.0, 2.5 VA-01 Set. [iv] Live Cable Indicator with indications at the Front and Three Inlets to check the Synchronization of Phases – 1 No [v] Making capacity - 52.5 kAp [vi] Cable Termination Bushing suitable for up to 1 Run, 3 Core, 240 Sq.mm, XLPE Cable – 1 Set [vii] Cable Termination Cover Boots [Push on type] – 1 Set [viii] Circuit Breakers shall have Two 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 unauthorised operations. An operating mechanism shall 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 shall be no automatic reclosing. Circuit Breaker shall have a min of 2000 Mechanical and Electrical Operations and 50 Nos Short Circuit Operations, Disconnector and Earth Switch shall have a minimum of 1000 [M1] Mechanical Operations.

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Supplying, Installing, Testing & Commissioning of Factory Made, Floor mounted, 12 kV, 630 Amps, 21 kA for 3 Seconds, SF6 Insulated, Motorised, Outdoor extensible type, 3 Way RMU Consisting of 1 No. of VCB as Incoming and 2 Nos. of VCBs as Outgoing with SCADA Compatible complete all specified and as directed and shall comprise of the following:

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[A] RMU shall be floor mounted, 12 KV, 630 Amps, 21 kA for 3 Seconds, SF6 Insulated, Motorized, Outdoor extensible type, RMU with Air Insulated Bus Connected Metering unit, Type tested in line with latest IEC Standards, suitable for operations at a height up to 1000 Meters above sea level and Ambient Temperature range from 5ºC to 50ºC without any de-rating, Switchgear and Busbar shall all be contained in a Stainless Steel Enclosure [Minimum 2.5mm thick SS 304 Grade] filled with SF6 at 0.3 Bar [300 hPa] Relative Pressure, RMU Tank shall provide Full Insulation and Switchgear shall be insensitive to the environment with Degree of Protection of IP67, Switchgear Operating Mechanism shall have an IP2X Protection and Cable Chamber shall have IP3X Protection, Outer Enclosure shall be IP 54 type tested, 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 shall require 450mm to handle and the gap between the coupled RMU’s must be within 10mm.

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