wrote:

On Tuesday, 20 February 2018 22:01:29 UTC, Roger Hayter wrote:
tabbypurr wrote:
On Tuesday, 20 February 2018 10:05:01 UTC, Roger Hayter wrote:
yamman m wrote:

Hi guys I'm needing an extension lead as my old 1 from years back is
lookin tired and old. I have plenty 1.5mm & 2.5mm grey twin & earth
left over from previous property. We are in a rented property for next
8 months hence don't want permanent fixtures. I'm needing a 5 metre
long extension to power max 4 devices namely 2x 55w flo lights. 1x 17w
lizards heat mat and 50w cage feeder. I plan on using new 13 amp fused
plug on the 2.5mm cable and a new 4 way extension socket on the other
end. Any opinions on this been safe,ok,unsafe,dangerous? thanks for
help and advice


Non-expert diy view from me. Don't use the solid wire cable, as it is
not designed for flexible use,

+1

and if you fix it semi-permanently it is
likely to create a risk in future if someone uses it for something else.

ok if fixed in place and unwired at end of use

Get 6m of 1.5mm^2 flex and use a 3A fuse in the plug. Mark the
extension with a label (to remind yourself) saying "maximum 500W" and

1.5mm^2 is rated to over 13A.

The OP describes a semi-permanent installation some of which is likely
to be switched on all the time which is going to use less than 1A.
What is not to like about protecting it from currents higher than 3A
under fault conditions where it could overheat?

It would also be bad practice to use the semi-permanent extension for
other appliances and a little note on the sockets to that effect, and
the current limit, would be good.

too many errors.

Name one!

--

Roger Hayter