Central Coalfields Limited Tender

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Central Coalfields Limited - CCL Tender

Works
Electrical Generators And Transformers
Electrical and Electronics
Eprocure
Opening Date20 Sep 2024
Closing Date1 Oct 2024
Tender Amount₹ 9,63,470 
This is an estimated amount, exact amount may vary.
Notes
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Input Voltage-0-415-440VC(Isolation transformer), Shield1- Copper Shield between primary and each secondary with ground terminal. Output Voltage-0-230-250-415VAC, output current-3.5A, VA rating-7500VA, Shield2- Copper shield after the outer layer of secondary connected to transformer mounting, Winding Material-Copper, Dielectric test voltage between winding and shield- 10KV, Core material-CRNO stamping, Mounting-foot mount with L Clamp.

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Earthing with copper earth plate 600mm x 600mm x 3mm thick including accessories and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7metre long etc with charcoal/ coke and salt as required.

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Supply and laying 25mm x 5mm copper strip at 0.50 metre below ground as strip earth electrode including connection/terminating with G.I nut, bolt , spring, washer etc as required.(jointing shall be done by overlapping and with 02 set of G.I nut bolt & spring washer spaced at 50mm)

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Supply installation of Lightning protection system ESE type as per DGMS (Tech) Cir. No. 07 dt. 27.10.2008 & 10 of 23.06.2020 Advanced Early Streamer Emission type Lightning Protection System The lightning protection system shall be advanced type which is designed to send upward streamer earlier than the other surrounding metallic points, attract lighting to a preferred point and safety convey the lighting energy to ground with a Predetermined route. Lighting Air terminal with Adaptor: Air terminal designed and tested to NFC17 AND UNE-21186, Air radius minimum 60 Mtrs with stainless steel design suitable for all weather conditions. Air terminal made of non-corrosive materials, utilize advance and sustainable technologies. Provide complete protection by capturing dangerous lighting discharges and safely channelling it to earth. Test certificate will be provide as per Standard NFC17 and UNE-21186 from NABL or internationally recognized laboratory Down Cable / Conductor: High Voltage Multi copper insulated cable of minimum 50sq.mm cross section for lighting current dissipation to the earthing system with necessary accessories, Down cable / conductor should be in single length approx 90 Mtr, From the Air terminal to the earthpit. Electronic Lightning Strike Counter - Lighting strike recorder counter shall be weather proof type it should have six digits event count. Should have capacity to count smallest strike, it should be a voltage sensing type

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Supply and complete connecting re-wiring with 4 sqmm fire proof 1100 volt wire with all accessories like lugs, clips and washer etc and fixing with conduit pipe.

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Total impact of GST for the purpose of CTC

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