Tamil Nadu Housing Board Tender

Lightening

Lightning Rod : 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 workingin hazardous atmosphere. The Air terminal is non-radioactiveand requires no special licensing. The unit is fully autonomous (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. Theaverage gain in triggering time (ΔTs) obtained during the lab test for the offered model is 60 μs. 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.

MOUNTING STRUCTURE: Supply of Standard / Special Mounting Structure of height 4.5 mts. pipe, and 300 x 300 x 8mm MS plate, 3 mts. 48mm OD class C GI outer pipe,1.8 mtr, 38mm OD inner pipe, for roof mounting on concrete base and with FRP adapter.