Rank: Forum user 
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Hello, I have had a request to carry out some work whereby we may be exposed to live low voltage wall boards. Now apart from getting our guys trained, how are we supposed to do that without total isolation of electrical services?
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Rank: Super forum user
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Hi Birchall
What voltage are you describing as Low?
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Rank: Super forum user 
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low voltage including mains presumably. Not sure what you mean by wall boards, other than perhaps the 60s style electric heating systems embedded in housing stock internal walls?
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Rank: Super forum user 
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Any distribution systems around an office, workshop, warehouse, and certainly homes are all low voltage.
It is not until you get to heavy industry, and the "National Grid" do you see anything other than high voltage where access is strictly controlled, or at least should be.
Would need a bit more information on what you are describing.
If these are wall mounted distribution boards (aka fuse boxes) then there will be no risk if these are intact and adequately maintained, as long as you are not doing anything that these boards are not designed to prevent the entry of, or is going to damage them at all.
For example most distribution boards are not liquid or dust tight.
As I say more info please.
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Rank: Super forum user
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A lot more info.
No one should be exposed to live low voltage conductors unless trained to be close to /working on etc. Re electricity at work act 1989.
Low voltage is 230/400V ( not fully described here) so not 'safe' to play with.
Rob
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Rank: Forum user
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I believe low voltage to be anything below 1000 volts. Certainly more than enough to end badly if not careful!
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Rank: Super forum user
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It is Mark, but I steered clear of definitive limits as the original question was unclear.
The 1kV is also only a.c., is this d.c.?
We don't know.
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Rank: Forum user
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Hi, I am just seeking some clarification. As I understand it, we need to access these areas under controlled supervision. I think they are distribution boards and we are working near to them.
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Rank: New forum user
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Working in the electrical industry myself, I feel happy to comment on this thread. If the 'wall boards' you mention are consumer units or three phase distribution boards, the condition of these will make a big difference. I would expect that the condition of these to be satisfactory and have some sort of hinged front cover. If that is the case, then just make sure that you are careful working around them. For example, if you are using scaffold or splashing paint or water in the area, cover the units with sheeting and just take care. Other than that common sense takes over. It may be, that if you've been told wall boards, then these are commonly used in banks, shops etc. It is an illuminated display board. There will definitely be some point where you can isolate these, normally fed from a fused connection unit. get someone responsible to pull out the fuse and check the circuit before fitting it back. No one without the correct training should be responsible to carry out any isolation other than in an emergency.
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