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Subject:	High voltage clearance (air gap)
From:	Hal Winslow <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Wed, 4 Jun 2003 15:28:33 -0400
Content-Type:	text/plain
Parts/Attachments:	text/plain (23 lines)

Hi,
I've tried a search of the archives, but can't seem to dig up any answers.
And I don't have a copy of IPC-222X handy to look up the answer...

So with those disclaimers out of the way, can someone tell me the air space
I need between high voltage nodes (like the leads of large T/hole caps) to
withstand 1kV?  I'm familiar with the 3mm/kV rule of thumb for surface
creepage, but not sure what to design for through an air gap.

Thanks,
Hal Winslow

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