----- Original Message -----
From: "Stephen Sprunk" <stephen@sprunk.org>
On 18-Mar-14 17:54, Niels Bakker wrote:
* web@typo.org (Wayne E Bouchard) [Tue 18 Mar 2014, 23:53 CET]:
I have had to do this at times but it is not strictly allowed by codes and not at all recommended.
It's an active fire hazard. The cables aren't rated (= built) for the power draw.
That's a problem in the other direction, but plugging a 20A device into a 30A feed shouldn't be a hazard at all.
Plugging a 20A *PDU* into a 30A receptacle can be dangerous if a) there is more than 20A of load plugged into it b) it has no breaker, and c) the cordset is only 12A, which is what you would expect on a 20A PDU. Cheers, -- jr 'up the voltage' a -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://www.bcp38.info 2000 Land Rover DII St Petersburg FL USA BCP38: Ask For It By Name! +1 727 647 1274