Odd 240v wall socket outlet

[Olderisbetter]

We have been have a big sort out to say the least, while opening old stock i found a wall outlet with this odd T shape on the earth pin, tried a standard plug and no go...

 

[cheb]

It's a special earth socket to restrict access. I vaguely remember hospitals or government departments being involved.

 

[cheb]

Here you go: https://www.plugsocketmuseum.nl/British2.html

That's a whole site devoted to mains plugs and socketry. Hats off to the man for doing it.

 

[My Old Landy]

Here you go: https://www.plugsocketmuseum.nl/British2.html

That's a whole site devoted to mains plugs and socketry. Hats off to the man for doing it.

Thanks for posting that. I have seen the T shaped ones but some of the others are new to me especially the rotational ones!

 

[colnerov]

Hi, A few years ago they refurbished one of the piers at my local airport and they fitted similar security sockets like that to deter passengers from plugging phones and laptops in to charge. However they didn't tell the cleaning company so the cleaners couldn't use the vacuum cleaners, they didn't say anything because it made their job easier. Until terminal management noticed the carpets were dusty and pulled the cleaning company up on it and they spoke to the cleaners, then it all came out and they were supplied with appropriate plugs.

Colin

 

[brightspark]

you can file the plug earth terminal down to make standard plugs fit or buy the proper ones for about 2 and a half quid used in airports and public spaces to stop un authorized use

 

[Olderisbetter]

In the same box was quite a few round 3 pin

 

[colnerov]

Hi, If those three round pin sockets are small they are usually used on lighting rigs in theatres.

Colin

 

[EM1L4]

We have been have a big sort out to say the least, while opening old stock i found a wall outlet with this odd T shape on the earth pin, tried a standard plug and no go...View attachment 305110

I’ve seen them used for ‘essential supplies’ that were covered by a UPS and Generator. Same story as everyone else has said, stops a muppet from using them and unplugging equipment/connect high power equipment

 

[EM1L4]

In the same box was quite a few round 3 pin
View attachment 305127

As @colnerov has said, often used for lighting although these look like 5a round pin as apposed to the 15a that is standard in theatres…

 

[Seadog]

We used to use the "T" slot ones for UPS.

 

[bricol]

Thanks for posting that. I have seen the T shaped ones but some of the others are new to me especially the rotational ones!

All our CAD stations were on the rotational ones, and some still are I think. Other than the plug being a big larger than usual, theres nothing much to indicate they are special - which has led to some amusement