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For the test buttons to work, then you would have to have it live with the cover off, exposing live terminals.
Lid should only be openable with a tool.
Lid should only be openable with a tool.
Discuss Butchering a consumer unit Part deux in the UK Electrical Forum area at ElectriciansForums.net
And this is where it gets interesting..... technically I'd argue that this is a commercial installation and therefore subject to a regime of testing and maintenance - by a skilled or instructed person.For the test buttons to work, then you would have to have it live with the cover off, exposing live terminals.
Lid should only be openable with a tool.
The lid is screwed with hinges. I could replace with thumb turn bolts.
I would be fitting a flat plastic plate properly screwed in place to shield the everyday user from live parts.
I did think of using a complete CU inside the box, but there would still be cables with only basic insulation exposed.
That is why I suggested a skeleton CU as they usually come with a large cover which if needed could be cut down to suit the applicationI did think of using a complete CU inside the box, but there would still be cables with only basic insulation exposed.
I agree. It's fine to screw a DIN rail into an old rewireable fuse enclosure like the one in question and fit MCBs with semi exposed live terminals, as long as the lid is secured by screws that require a tool, and it is labeled appropriately, and I have done so on a few occasions, but RCBOs, with their test buttons, means this solution can't be used.Sounds a bit too much like manufacturing custom equipment to me.
Don't get me wrong, I'm sure technically it is a good solution.
But if I make a “lid” which is screwed back.... but has a hole where the front of the rcbo’s protrude to access the test button and toggle switch.I agree. It's fine to screw a DIN rail into an old rewireable fuse enclosure like the one in question and fit MCBs with semi exposed live terminals, as long as the lid is secured by screws that require a tool, and it is labeled appropriately, and I have done so on a few occasions, but RCBOs, with their test buttons, means this solution can't be used.
What makes the test button on an RCD/BO any different to the trip mechanism on an MCB or even the pulling of the original ceramic fuse???RCBOs, with their test buttons, means this solution can't be used.
Because you can do those with the power isolated.... rcd test button needs power to operateWhat makes the test button on an RCD/BO any different to the trip mechanism on an MCB or even the pulling of the original ceramic fuse???
What makes the test button on an RCD/BO any different to the trip mechanism on an MCB or even the pulling of the original ceramic fuse???
Whatever the manufacturers claim, closing a MCB live, against a short circuit, is neither good for the MCB nor my nerves.I'll need some serious convincing that everybody isolates an entire board to 'reset' an MCB, especially when they're rated for functional isolation (as also are RCBO's).
Reply to Butchering a consumer unit Part deux in the UK Electrical Forum area at ElectriciansForums.net
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