switch gear wire
switch gear wire
(OP)
what is switch gear wire, is that an "European" term. I gather that it is basically an over-insulated flexible wire for jumpers on MV instrumentation. Is there a US equivalent?
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RE: switch gear wire
RE: switch gear wire
RE: switch gear wire
One product is called [slang, maybe?] “Natvar rod”—a round, semi-rigid solid-copper conductor with an orange plastic covering. It was not insulated for phase-to-ground contact, but likely to resist incidental contact in >600V applications. One use is in metalclad gear for instrument-transformer and arrester jumpers.
Can’t find a link for the material.
RE: switch gear wire
RE: switch gear wire
good for 5KV. But I remember working with high voltage microwave tubes that used a #14- #10 colored (PFTE?) that was used up to 30kV.
However, I do not think it was that good because I remember showing a tube to a sales rep. He said what is the pretty blue wire for?, shortly before being knocked to his butt.
The tube manufacturer quickly issued saftey bulletin for this!
RE: switch gear wire
http://appprod.mysouthwire.com/ProductCatalog/XTEInterfaceServlet?contentKey=prodcatsheet49
http://appprod.mysouthwire.com/ProductCatalog/XTEInterfaceServlet?contentKey=prodcatsheet189
RE: switch gear wire
The material in §G of http://www.ciic.com/pphlogger/dlcount.php?id=whsalisb&url=http://www.whsalisbury.com/images/catalog.pdf makes decent ‘fully rated’ 15/25/35kV jumpers for use inside metalclad MV gear/unit substations. Midspan it may be supported by drilled Micarta or FRP sheet, spaced about the same distance as transfomer bushings or switch/breaker poles. Another means of support are Glastic knobs.
RE: switch gear wire