What do they call them thingies?

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You know the ones.

They are used for temporary connecting wires to the mains, mainly for when you are bench testing stuff.

They have 3 spring loaded terminals for the LNE connections, and a lid that closes over them and engages the fuse so you can not accidentally connect to it whilst it is live.

It also has a neon in the middle of the lid to warn you it is live.

If anyone knows what I'm banging on about I'll be amazed :lol:

TIA.
 
I've always known them as a safeblock too, or unsafe block whichever way you look at it :wink:
 
The only hazard was relying on the cover to stay open when working on the equipment powered by the safe block ( Or Big Crocky as a friend called his one ). A careless move on a crowed bench and the cover fell into the shut position switching on the equipment when not wanted to be switched on. Then Big Crocky had a vicious bite.....

It would have been easy to have made them with a prop or other device the ensure the lid could not fall shut by itself.
 
we used to have 2 of them screwed to the desk for doing 3 phase..
1 had the neutral and earth in it along with a single phase, the other the 3 phases.. ( so we had 2 red phases available )

we rigged a spring loaded wooden dowel that went across both of them with the 3 phase cleared last so that you had to make the neutral and earth one first

there was also a 3 phase isolator next to them for added safety..
 
Socket manufacturers helpfully make their sockets more suitable for matchsticks with matchstick holders.

Just use a screwdriver in the earth pin socket and the matchstick holders of the current pins open. They close and hold the matchsticks tight when you remove the screwdriver.
 

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