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[email protected] gopalansampath@gmail.com is offline
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Default Fuse calculation

On Saturday, March 24, 2018 at 7:19:46 AM UTC+11, dennis@home wrote:
On 23/03/2018 18:17, Sam wrote:
On 23/03/2018 18:16, dennis@home wrote:
On 23/03/2018 18:07, Sam wrote:
On 23/03/2018 17:57, whisky-dave wrote:
On Friday, 23 March 2018 17:46:17 UTC, SamÂ* wrote:
Â*Â* ANd don;t forget the FUSE is to protect the cable NOT the item
of equipent so it really doesnlt matter what current rating the
electric fire is, you put the fuse in that is correct for the cable.




Nonsense!

Fact.

Your view is too simplistic. Any fuse value below the rating of the
cable will protect it. Therefore a "univeral" cable rated at say
5amps feeding an appliance rated at say 2 amps will still be
protected by using a fuse suitable for the appliance.



If an appliance needs a fuse for protection it should be in the
appliance. Plug fuses are not there to protect the appliance and can't
be relied on to do so.

So?


So a 13A fuse is perfect protection if the cable is thick enough and a
3A if it isn't. Its illegal to supply anything unsafe for use with a 3A
fuse. It may even be illegal to supply leads that are unsafe with a 13A
fuse if the regulations have been passed.


Makes sense absolutely.