Hi,
I'm a little perplexed by a simple light fitting replacement that has turned unexpectedly interesting.
Replacing the fitting I linked the loop to a junction block and sealed it with insulation tape (as the new fitting didn't have any connectors as standard. I connected the live and neutral as normal and as there was no earth on the metal light fitting I connected the earth to it (with a screw and washer, basic but serviceable).
Upon switching the lighting circuit back on the light comes on as expected but my pen mains voltage tester seems to think the metal casing is live.
I've crawled into the loft just to make sure I didn't screw into any cabling when re-mounting the fitting and that seems all fine.
Am I doing something incredibly stupid or does it appear that the earth for this loop is live somehow?
I am an amateur and so any help would be extremely gratefully received.
I'm a little perplexed by a simple light fitting replacement that has turned unexpectedly interesting.
Replacing the fitting I linked the loop to a junction block and sealed it with insulation tape (as the new fitting didn't have any connectors as standard. I connected the live and neutral as normal and as there was no earth on the metal light fitting I connected the earth to it (with a screw and washer, basic but serviceable).
Upon switching the lighting circuit back on the light comes on as expected but my pen mains voltage tester seems to think the metal casing is live.
I've crawled into the loft just to make sure I didn't screw into any cabling when re-mounting the fitting and that seems all fine.
Am I doing something incredibly stupid or does it appear that the earth for this loop is live somehow?
I am an amateur and so any help would be extremely gratefully received.