On 03/06/2019 16:00, Steve Walker wrote:
On 03/06/2019 12:09, Martin Brown wrote:
On 03/06/2019 11:55, Scott wrote:
On Mon, 3 Jun 2019 11:39:27 +0100, Andy Burns
wrote:

Terry Casey wrote:

Just came across this topic on another forum:

http://golbornevintageradio.co.uk/forum/showthread.php?tid=7463

Temperature rise of 13A sockets is only tested for 60 minutes at 13A
(and double 13A sockets only tested to a combined 20A I think).

If it's okay after 60 minutes, is it not likely still to be okay after
10 hours?

At 13A for 1 hour a UK socket gets really rather hot. The sort of
thing that can happen when you have a 3kW fan heater in a very cold
room. I have seen moulded extension blocks melt or deform under such
loads.

Cheap extensions often do, but a decent plug and socket don't and
neither does a decent extension lead.

The fuse can be dissipating a few watts on its own at 13A. The plug
always gets warm to the touch - a good quality socket should not.

The trouble is that local shops will only stock the cheap stuff and most
people won't know any better and won't go to the trouble of sourcing
decent equipment or even better, the parts to make up their own,
dedicated lead.

Increasingly portable equipment is power limited to 2.4kW because of
this. Even the good sockets eventually go bad if the internal contacts
become corroded. I have seen some horrors inside damp penetrated walls
with crystals of copper sulphate growing on them.

In any case my understanding is that if you buy an electric vehicle
you get a 'deal' on a charging point.Â* I only hope it's a better deal
than the Brexit one!

I think it gives you 16 amps and speeds up the charging a bit.

Ideally you want a custom circuit dedicated to a charger - much like
running a welding set or similarly brutal high current device.

In my case, I might well repurpose the cooker circuit. We use gas these
days and on the opposite side of the kitchen to where the electric
cooker used to be - and due to getting a good length of free cable whenb
I was first wiring it, we have an unused cooker point fed from a 20+'
length of 16mm2 T&E and its own MCB.
I reckon a dedicated 32A circuit is the way to go.

--
Regards,
Martin Brown