On this one, which like most of us, has tended to dominate my life.
Has anyone looked at HTM 2020 or recommendations from RETRA?
No matter what any of us say, if one of us is electrocuted, we would not have a leg to stand on in terms of the HSE. They take the guidance as it is.
Get electrocuted and we clearly did not follow the guidance, eg 'dead', ' insulated', see you in court afterwards.
RCD down to 10mA, isolation transformer(s), EARTH FREE ZONE, cordoned off, isolation trips around the department, etc, etc.
We haven't done the above, told to do so or accept the consequences when someone suffers.
Watch this space, in time that is.