It must comply with a statutory requirement to be safe.No, I'm trying to show that a pedantic repetition of it must comply with a non statutory set of guidelines is not fitting of any person that calls themselves a member of any profession! (i realise you BAS are not an electrician/electrical engineer).
By far and away the easiest way to ensure that is to use the "non statutory set of guidelines".
I'm suggesting that the OP do the job properly, (which for him will require recourse to books). Do you have a problem with that?Sorry guys if you cannot think for yourselves to find safe means of achieving tasks without recourse to a book - what are you being paid for!