Altitude Derating
Altitude Derating
(OP)
Hello,
Are there any good references or standards for altitude deratings for switchgear? I've seen some info in IEEE/ANSI C37.20.3-2001 but that's about the only standard with altitude derating info that I have found.
Are there any good references or standards for altitude deratings for switchgear? I've seen some info in IEEE/ANSI C37.20.3-2001 but that's about the only standard with altitude derating info that I have found.






RE: Altitude Derating
http://www.powl.com/main/Uploadpdf/pv_ag.pdf
There are two issues - the dielectric rating and the continuous current rating. The derating factors are different for each.
RE: Altitude Derating
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Paraphrasing Yogi Berra, engineering is 90% technical and the other half is administrative.
RE: Altitude Derating
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