Tender For Providing Early Streamer Emission Air Terminal Lighting Arrester Arrangements To (Spike Buster) To Zone-4 Zonal Office Building And Corporation Main Office Building In Tambaram City Municipal Corporation, Tambaram-Tamil Nadu
TDR : 38617440
Tender Notice
Corrigendum Details
BOQ
Expired
Tambaram
Tamil Nadu
Corrigendum : Tender For Providing Early Streamer Emission Air Terminal Lighting Arrester Arrangements To (Spike Buster) To Zone-4 Zonal Office Building And Corporation Main Office Building In Tambaram City Municipal Corporation
Name of work: Providing Early Streamer Emission Air Terminal Lighting Arrester Arrangements to (spike Buster) to zone-4 zonal office Building and Corporation Main Office Building inTambaram City Municipal Corporation.
Sl. No.
Item Description
1
Supply of Early Streamer Emission Air Terminal (ESEAT).Model: L The ESEAT has corrosion resistant stainless chrome body made up of AISI 316 grade of height 0.50 metres capable of working in hazardous atmosphere. The Air terminal is nonradioactive and requires no special licensing. The unit is fully utonomous (no battery, no external power supply is required), collects energy from the ambient electric field. The ESEAT model has been tested in a high voltage laboratory in accordance with NFC 17 102 in order to measure the average gain in triggering. The average gain in triggering time (ATS) obtained during the lab test for the offered model is 60 us. The ESEAT works on negative as well as positively polarized discharges. ESEAT has been tested for such discharges in Central Power Research Institute (CPRI). A dedicated tester is avilable to test the healthiness of the ESEAT on request (Page No. 37, Point No. 3 of Clause 8.6 of the Revised NFC 17-102 version 2011). ESEAT Model: L- Radius of protection: 86 Metres Level of protection considered for the Project-II level
2
Supply of Standard / Special Mounting Structure of height 4.5 mts. pipe, and 300 x 300 x 8mm MS plate, 3 mts.48mm OD Sclass C GI outer pipe,1.8 mtr, 38mm OD inner pipe, for roof mounting on concrete base and with FRP adapter Mounting Structure
3
Supply and errection of single core 70 sqmm multi strand copper condutor cable with bright annealed electro lytic bare for voltage grade up to 1100 U confirming to IS -694-2010 for DOWN CONDUCTOR
4
Supply and insallation maintenance free Earthing System comprising of 25mm dia Copper Bonded rod and 2 mtr. length earth electrode of low carbon steel rod with 100micron bonding and 50 kgs. of carbon based environment friendlybackfill compound and 5 Litrs of Earth Charging Liquid suitable clamp for Earth Electode
5
Lightning Strike recorder shall be weather proof type It\"s should have 6 digit event count. Should have the capacity to count smallest strike. It should be a voltage sensing type counter, so that it will not register nearby strikes and static discharges due to induction effect..
6
Supply of Test Link Box for each Down conductor in order to disconnect the earth termination system to enable measurement of resistance For TEST LINK
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