From: John Woodgate
Subject: Re: IEC Mains lead. What fuse??
Date: Tue, 24 Sep 2002 22:07:14 +0100
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Tue, 24 Sep 2002 21:58:37 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that firstname.lastname@example.org wrote (in <3d906fd8.18
email@example.com>) about 'IEC Mains lead. What fuse??', on Tue, 24
>Just bought some IEC mains leads which are rated at 10A. However, the
>fuse fitted in the (UK) plug is 13A!
>My question is this: Should the fuse be replaced with a 10A fuse or is
>the 13A one supplied by the manufacturer considered safe in this
>situation? Surely with a 13A fuse fitted an appliance could draw 11A
>despite the lead being rated at only 10A which could be a potential
>I'm looking at this from a safety/liability point of view.
The 10 A is almost certainly the rating of the IEC 60320 appliance
connector, not the cable.
Either cut one up and measure the conductors or *carefully* measure the
resistance and calculate the conductor size from that. For 13 A, you
only need 1.25 mm^2, which is not a harmonized size.
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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