In article om,
Dave Liquorice wrote:
As has been pointed out, all flexes have to be capable of carrying
somewhat more than 13 amps as a fault condition.

Hum, 0.75mm flex (2192Y type stuff) is 6A rated. This is the very
common two core oval flex, you can get it in 0.5mm 3A as well...

Well, what's the effective area of a fuse? Ratings depend on length as
well.

Yes 0.75mm it'll carry 13A and only get a bit warm but a 13A fuse
takes quite a while to blow at twice it's rating and we are now
getting on for 5 times over that of the flex. I'm not convinced that a
13A cartridge fuse will blow before the flex gets rather to hot under
controled overload conditions rather than a dead short.

Again, what sort of conditions give a long term 'fixed' overload rather
than short? Apart from extension leads?

But then if your flex is damaged, you shouldn't be using the
appliance anyway until properly repaired.

Have you left the real world Dave? B-)

No. The chances of an appliance lead being damaged to the point where it
won't blow the plug fuse but overheat to the point of danger is remote.
Including hoovers and irons. Where the damage will be obvious and should
be fixed. Otherwise, let Darwin apply.

--
*See no evil, Hear no evil, Date no evil.

Dave Plowman London SW
To e-mail, change noise into sound.