

Tamil Nadu Electricity Board has published Power line should be protected by using suitable OBO Bettermann surge protection device. Submission Date for this Tender is 26-06-2012. Power line should be protected by using suitable OBO Bettermann surge protection device of min 5 KA/pole 3 poles for 3 phase) of lighting surge I impulse 10/350 micro seconds ) L-N & 30 KA / pole of switching surge of 1 Nominal 8 /20 microseconds ) multi shot. N-PE Natural to protective Earth) SPD should be of 25 KA of lighting surge I Impulse 10/350micro seconds ) suitable for type 1+2 as per IEC 61643-11 & Lighting protection Zone LPZ to 2 as per IEC 6205-4 L-N arrestors have to be pluggable & should have local & remote failure indication feature Tenders in coimbatore Tamil Nadu. Bidders can get complete Tender details and download the document.
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