13A Sockets with USB sockets

I had one for a while. No problem with interference that I noticed but amperage was crap for a modern phone or tablet. I reverted back to walmart.

In article <rsddag$jcn$ snipped-for-privacy@dont-email.me, "Brian Gaff (Sofa)" snipped-for-privacy@blueyonder.co.uk> writes

I have a number of multi-outlet strips with USB outlets. I haven't taken an AM radio near them, but VHF seems fine. I'll try and find a working AM radio and take a look.

Come on Brian, you're not an idiot. Amperage? You mean "at a decent current" if you want to be taken seriously.

Amperage is a perfectly good colloquialism. Maybe not in the rarefied circles you inhabit.

Well if you are going to be pedantic. Its been a long boring time. My brain is a trifle addled at times. Brian

It also hints at the magnitude of the current, 'amperage' to me suggests a few amps.

They seem fine here. But are metal plate sockets in steel backing boxes. Plastic may not be as good.

I have one from TLC. Two gang plate but only one socket. The USB side drives anything I've tried. One USB delivers 2.1 amps. Total for all four,

You need to check the spec before buying. Same as anything, really.

Yes, there is no switching of the input power to the USB circuit - the circuit is being powered 24/365. In the case of Brian's request, if the usb circuit in these wall plates does produce RF interference then it cannot just be easily unplugged.

They tend to mostly offer the low power 1A option so not really that useful. There is one in our village hall because a wall wart might walk.

There is no guarantee which ones will be electrically noisy. The worst I ever saw was a BT DECT phone charger which doubled as a mobile phone jammer. Cheap and nasty Chinese chargers have a bad habit of missing out some or all of the interference suppression measures to save cost.

Consuming power, admitedly not much per socket but a lot of tiny amounts soon add up to a big amount. 25 million households, average of one of these sockets per house hold (some may have none some several...) 0.25 W each = 6.25 MW,

Most of them do to a greater or lessor extent, in my experience a moderately RF quiet one is rare.

Not to mention the fire risk from some elctronics permenantly connect to the mains and subject to all the spikes and crap on that. And if it does catch fire no easy way of removing the power.

More the point is that the circuits have common components that would fail after a lifetime much shorter than expected for a main socket. Many of the USB circuits have electrolytic capacitors that have been shoehorned into a tight space unsuited for keeping them cool.

I recently saw one with 2 or 3 USB sockets, featuring a push button to turn power off and on to them, as well as the usual switches for the 13A sockets.

When I hear people using "amperage" I want to make sure I don't use anything electrical that may have been working on as it indicates someone who is clueless.

Surely a socket is already in a fire proof'd enclosure?

I suppose you always say "electromotive force" and never voltage.

I believe the MK ones use no power unless a USB plug is inserted.

I had installed some USB sockets in two bedrooms on both sides of the two double beds.

All was well until a power cut. When the power was restored, only two of the 4 double sockets worked on their USB ports

So they were replaced.

Then another time, when I had a need to de-energise the circuit for some works, the two remaining double sockets never worked on their USB ports again when the RCBO was turned back on.

It seems if the caps dry out, the USB power circuits remain operative until the next power cycle..... then the USB ports no longer work

The USB socket we are all referring to is already 20 years old and there's no reason to change it.