Socket with slimest back connections?

[Mark Wright]

Hi, The walls have been chased out and he fitted 25mm back boxes and to be fair you can't really go any deeper but one socket on a ring is feeding a spur so three cables and yes you can fit it in but really id like a bit more room.

Are there any sockets that have very thin connections on the back?
Thanks

 

[DPG]

There not fused though are they?

https://www.-----------------------...et-outlets-incorporating-usb-charging-points/

That report covers many types of fault, not just over current protection.

 

[Avo Mk8]

Not going too off topic but technically now you mention it an unfused supply off a ring? maybe theres a reg being broken there.

If you are talking about USB 13A sockets, since 2016 when the socket British Standard was revised to cover built-in electronics, the design has to incorporate a fusible link or fuse, and the psu must be SELV, meeting creepage and clearance distances and transformer insulation requirements etc. etc.
USBs got off to a bad start before that revised standard, when the market was flooded with dubious products, though I think China also makes 'proper' ones now.
But these days I like to think if you buy an approved product from a reputable manufacturer/source, there should no longer be a problem!
Newer technology allows a phone or tablet you plug in to negotiate with the USB charger what voltage/ current it wants.
I guess you could say that's that's an added safety feature, or something else to go wrong!

 

[Mark Wright]

If you are talking about USB 13A sockets, since 2016 when the socket British Standard was revised to cover built-in electronics, the design has to incorporate a fusible link or fuse, and the psu must be SELV, meeting creepage and clearance distances and transformer insulation requirements etc. etc.
USBs got off to a bad start before that revised standard, when the market was flooded with dubious products, though I think China also makes 'proper' ones now.
But these days I like to think if you buy an approved product from a reputable manufacturer/source, there should no longer be a problem!
Newer technology allows a phone or tablet you plug in to negotiate with the USB charger what voltage/ current it wants.
I guess you could say that's that's an added safety feature, or something else to go wrong!

I'd be interested to know if these sockets do have a fused link or fuse.

But really I'm only referring to Rings etc Even if you took a selv spur of a Ring you have to fuse it.

 

[MJPD29]

Just a thought, mk usb sockets advertise as fitting 25mm box, not sure about how well 3 cables would fit though.

 

[davesparks]

But really I'm only referring to Rings etc Even if you took a selv spur of a Ring you have to fuse it.

SELV spur? What on earth is that?

 

[Mark Wright]

I've seen a few I'm going to investigate. But I think Dave's post about the collar has cracked it.

 

[mainline]

Not going too off topic but technically now you mention it an unfused supply off a ring? maybe theres a reg being broken there.

You lost me

 

[Mark Wright]

SELV spur? What on earth is that?

hehe why not

 

[Avo Mk8]

I'd be interested to know if these sockets do have a fused link or fuse.

Well if the socket has a CB mark from an accredited test house, then it must have (eg. a fusible link - typically looks like a resistor!)

 

[mainline]

hehe why not

I can see the purpose of having a 1:1 transformer socket outlet.

 

[mainline]

SELV spur? What on earth is that?

I think he's on about a selv fan supply.

SELV Filterless Extractor Fan

Designed to deliver the lowest possible maintenance

www.cef.co.uk

 

[nicebutdim]

I can see the purpose of having a 1:1 transformer socket outlet.

For shaving?

Apparently there are people out there who shave.

 

[pc1966]

Fused plugs are only required in the UK where we use Rings.

the flex is protected by the Fuse/MCB at the DB on a radial.

Only in specific cases where MCB and cable are specified together to meet adiabatic limit, etc.

That is why they often have thicker cables and limits on MCB for non-UK systems. We now also have thicker more expensive cables on most equipment because no one makes just for the UK market any more!

 

[mainline]

For shaving?

Apparently there are people out there who shave.

I meant a BS 1363 type.

I didn't shave until after I was born.

 

[Mark Wright]

The collar/spacer thing worked great. This forum always has the best advice.

The only thing, I bought some longer screws from a well know distributors and they basically stripped the thread of the backbox. Where do you buy 3.5 screws?