Caps were also required when the lights were a small load to operate correctly with some 2 wire PIRs and timer switches that have no neutral connection. The timers current draw would be enough to make some fluorescent lights flicker etc.
I also connect the 2 bars to the side bolt on these, the coarse, rounded thread screws hager use can work loose. All those bushes and glands sat up on the cable protection lip are making me cringe. :openmouth:
I can imagine it just disappearing (loudly) under short circuit conditions, then the resulting blast/plasma etc. casing the busbars to flash over damaging everything before taking out the ACB. The conductor on the other side of the bolt is a 240mm2 Cu-Flex.
Went to change a trickle/boost wall fan today that ventilated a small storage room. Disconnected the old fan from the adjacent switched fused spur, moved the supply wires from the load terminals to the supply terminals, replaced the 13a fuse with a 3a one. New fan class II but took Zs reading at...
Supply cable is connected to load terminals so fuse is still live when the isolator is in the off position. I didn't remove the terminal shield, it was left of top when I got there.
That wiring does not look good at all and there seems to be some additional problems beside the loose wiring. The photos are very small so I can't see all the details. I would recommend calling in an electrician to check things over.
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