However, the cable sheath should enter the connector case and be held by the clamp.
Inside there may be a connector for the CPC(earth wire) but, even if there is, it will just be for 'parking' it.
That's why I suggested she get an electrician in to look at them all. Every room in the house has these lights and all done by previous owner. All covered by two layers of insulation.
Yea that's the old 'whoops, my holesaw's hit the joist, eh, I'll just ram the fitting up there anyway'
I've seen fittings like this where the guy has just carried on with his holesaw, gone all the way through and taken out 2/3 of the joist. Rough. Just move it over
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