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From: Paul Burke
Subject: Re: IEC Mains lead. What fuse??
Date: Fri, 27 Sep 2002 10:46:13 +0000
Organization: Scazon Systems
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Phil Allison wrote:
> ** A fuse box is not an appliance. You are obfuscating again.
I don't think anyone was trying to get into arguments about what is an
appliance and what isn't. The point is protection. With a spur system,
the only protection is the fuse/MCB in the box. That has to be rated for
the most thirsty appliance allowed. With a ring main, and fuses at the
appliance end, the protection is appropriate for the size of string
attached. The main fuse protects the ring itself. The mains wiring is
designed assuming that every outlet will not be loaded with the
permitted maximum, usually a fair assumption.
Since appliance lead failure is a common problem (for example, where
people run a lead under the carpet and then walk over it for years), it
is arguable that this is the best you can do.
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