DFSITC OF ESE EARLY STREAMER EMISSION TYPE LIGHTENING ARRERSTORS AT VARIOUS LOCATION AT TIFR MUMBAI

Supply of Advanced Early Streamer Emission (ESE) Type of Lighting Arrestor of covering a radius of 110 meter for level 3 protection. When mounted at a height of 5 meter above terrace floor level, Having triggering time 63 micro seconds. Lightning air terminal should be totally autonomous device. It is designed to work on positively as well as negatively charged cloud conditions. The internal triggering circuitry & electronics should contain ambient electric field sensor, charge accumulator, command & HV amplifier, transformer & triggering release. It is designed as per NFC 17-102 & IEC 60-1:1989. The ESE terminal should be tested by CPRI (Central Power Research Institute, Govt. of India) [Type Tested] for the Impulse current of 40 kA (8/20 micro sec) with 5 positive & 5 negative impulses. with following specification of current capacity≥200 KA (10/35µs), capacity against wind speed ≥150 m/s, dimension 39cm, lower diameter of ESE terminal should be 30.5 cm, weight=4 kg. The Air Terminal should be tested & certified for -20 °C to + 60 ° C successfully for its performance & healthiness. The ESE Lightning Arrestor should be tested in MSME-Development Institute, Mumbai Ministry of MSME, Govt. of India. Standard NFC 17-102

Mast height 2 meter with protection radius up to 70 Meter

Mast height 5 meter with protection radius up to 110 Meter

Supply of 2 digit Tercel Transient event counter with display digit from 0 to 99 for a minimum count impulse > 1 kAmp (8/20 micro seconds) with degree of protection IP 20. Model REP-LC1 Make: Fast Electrode Tercel

Supply & fixing of 5-meter long supporting mast with necessary concrete foundation including S.S. base plate, Guy Rope, D-Clamps, insulator, S.S. Fasteners, Fan Hooks etc. wire as per Technical Specification Clause No. 5

Supply & fixing of 2-meter long supporting mast with necessary concrete foundation including S.S. base plate, Guy Rope, D-Clamps, insulator, S.S. Fasteners, Fan Hooks etc. wire as per Technical Specification Clause No. 5

Making Chemical Earthing with using of Copper Bonded Electrode in size of 80mm dia., 3-meter-long connected with 32mm X 4mm GI internal earthing strip complete with boring excavation in size of 6 inch dia, insert Electrode, back fill with chemical compound with making provision of 1’x1’ chamber to ease the connection and maintenance. Chemical earthing pit

Supply of 70 Sq.mm Single core Copper Cable

Supply of 25 X 3 tinned Copper Strip

Laying of 70 Sq. mm Copper cable with G.I. Spaces/G.I Saddle etc. on wall or on mast.

Laying & fixing of 75 Sq. mm Copper Strip with G.I. Spaces/G.I Saddle etc. on walls as per site condition.

Supply of connector to link between mast and ESE air terminal.

Installation, testing & Commissioning of Fast Electrode Tercel ESE Lightning Arrestor Complete System

Laying of the cable in the ground with digging & refilling work as per Clause No. 3.0 – (Cable) of Section-I Technical Specifications.

Supply & crimping with termination of Copper heavy duty lugs for single core 70 sq.mm cable

Power Automation and Controls