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DOn't do this, but I have a super un-advisable three pin plug on one end of a lead with terminal blocks on the other end for testing if stuff works. Connect item's bare wires to terminal blocks, plug in, switch on, check for magic smoke, turn off, unplug and immediately remove wires of the thing from the terminal block. Lock the plug and lead away from anyone else in the house. Don't do this, but nothing has caught fire or exploded, yet. And I've been able to determine if stuff (eg, some light fittings we picked up off ebay) are working. Don't do this.
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Is there some sort of adaptor?
There are 3-core to 3-core waterproof adaptors (https://www.screwfix.com/p/hylec-2-entry-3-pole-in-line-cable-joint/92911) but the steel armour cables won't be earthed so it's a bodge.
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Our sparky has put some armoured cable behind a new wall.
Why is the sparks using armoured cable? Is this inside the house?
You need to protect cable runs with metal or RCCB's under Regs. Using armoured cable for lighting circuits is well over the top.
Armoured cable is for high impact industrial areas or buried cable outside.
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@%~}
Our sparky has put some armoured cable behind a new wall and wired some lighting loops behind.
I want to test the lights when they come and I’m happy about wiring those up but wondered what the best was to get a three pin plus on the end of the armoured so I can plug them in for a test.
Is there some sort of adaptor?
I’m baffled by what I’ve seen online about voltage drops and length of cable etc.