On 9 Sep, 11:42, "Bob Mannix" wrote:
wrote in message

...





On 9 Sep, 11:25, Andy Cap wrote:
On Tue, 9 Sep 2008 03:21:27 -0700 (PDT),
wrote:
I was moving a washing machibe in a friends flat last night, and I
noticed that the 3 pin plug has signs of burning around the live and
neutral pins - not too serious - just enough to discolour the plastic
and turn it brown.

What could cause this to happen?

Thanks,
Mark.

Cheapo socket !

Andy C

Why would a cheap socket cause this to happen?

The metal wipers in the socket holes do not touch the pin over a big enough
area or firmly enough to give the minimum contact resistance or cut through
surface dirt/oxidation. This leads to heat and more oxidation, leading to
more heat.

This can happen over time with a decent socket - it never hurts to unplug
and plug back in every now and then (once or twice a year) to remake the
contact. Also loose wires inside a rewirable plug (not usual on a washing
machine now) can cause the same heating problem - check screw tightness too
if the plug is rewirable.

--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not)



Thanks,
Mark.- Hide quoted text -

- Show quoted text -- Hide quoted text -

- Show quoted text -

So there couldn't be a more sinister wirig problem at the root of
this?

Thanks,
Mark.