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From: forbes@aries.scs.uiuc.edu (Jeff Forbes)
Newsgroups: sci.electronics
Subject: UL and CSA Approvement
Message-ID: <1990Dec16.210528.12149@ux1.cso.uiuc.edu>
Date: 16 Dec 90 21:05:28 GMT
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Organization: School of Chemical Sciences, Univ. of Illinois at Urbana-Champaign
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Since we have been having continued discussion about UL approved
devices, I have a number of questions about such approval.
I have seen a number of line powered devices that were CSA approved
but appeared not to be UL approved. Is one approvement schedule more
rigorous than the other? Is CSA approvement superior to UL approvement?
I believe that UL approvement is totaly voluntary in the United States, but
is CSA voluntary in Canada?

UL = Underwriters Laboratory
CSA = Canadian Standards Association

Jeff Forbes

"....I have not failed. I've just found 10,000 ways that won't work."
			Thomas Edison