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From: Mike Page
Subject: Re: IEC Mains lead. What fuse??
Date: Tue, 24 Sep 2002 22:19:20 +0100
NNTP-Posting-Date: Tue, 24 Sep 2002 22:18:02 +0100
> 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
> fire hazard?
> I'm looking at this from a safety/liability point of view.
> (For an example of such leads check out rswww.com)
With mains power the emphasis for safety is on the fuse(s) in the appliance
rather than the one in the plug. It's difficult to conceive of a grey fault
(a not-quite-short circuit) upstream of appliance fuses that would cause a
fire hazard given adequate connector construction.
Many countries including some in Europe do not even have a lead fuse.
Indeed, some UK outlets (that we routinely refer to as "13A sockets") are
only rated at 10A, yet rely on a 13A fuse or 32A MCB.
If it's easy, use a 10A fuse. If it isn't, I wouldn't worry too much about
Mike Page firstname.lastname@example.org
BEng(Hons) AMIEE www.eclectic-web.co.uk
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