Surge/Lightning Protection
Surge/Lightning Protection
(OP)
I work with a lot of smaller facilities with low voltage electrical services(200-1000A) and I sometimes see a Secondary Surge Arrestor (MOV type) or lightning arrestor (spark gap type) on the line side of the main breaker.
This is usually in addition to a TVSS (Transient Voltage Surge Suppressor, MOV type) on the load side of the main breaker.
Now, I'd like to know whether or not it is worth installing a secondary surge arrestor since the TVSS units have higher surge ratings and lower clamping voltages. I guess the surge arrestor on the line side will protect the cables even if the breaker trips, and redundancy doesn't hurt.
Any thoughts?
Thanks
This is usually in addition to a TVSS (Transient Voltage Surge Suppressor, MOV type) on the load side of the main breaker.
Now, I'd like to know whether or not it is worth installing a secondary surge arrestor since the TVSS units have higher surge ratings and lower clamping voltages. I guess the surge arrestor on the line side will protect the cables even if the breaker trips, and redundancy doesn't hurt.
Any thoughts?
Thanks





RE: Surge/Lightning Protection
http://
and also:
"Fundamentals of Lightning Protection"
http://