At least for UL60950 (3d ed) and Ul 3101-1/3111-1, the spacing tables are
the same as EN60950:2k and EN 610101-1.

What UL standards have spacing requirements that are different than the EN
std w/equivalent scope? I would really appreciate this info.

thanks,
Brian

-----Original Message-----
From: David Sproul [mailto:david.spr...@alexanderlynn.co.uk]
Sent: Tuesday, October 08, 2002 8:51 AM
To: richwo...@tycoint.com
Cc: EMC-PSTC
Subject: RE: Creepage

Can anyone give a rational reason why UL ask for around twice the creepage
distances for 120V that EN standards ask for 230V.

I realise this is a bit vague, but I can dig out some examples if any needs
to be convinced.  I have been asked this by customers on a number of
occasions, and have always meant to find out so I would no longer have to
apologise for not knowing.




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