I can then use and earth wire with and eye to connect the earth to the Piranha nut.
In fact rather than messing about with bolts and having to drill through the box whether it be metal clad or plastic could I not use Piranha nut instead of the nut and earth tag even if I am glanding to a straight forward metal 2 x 2 box?
Apart from being a bit more costly are their any issues with this?
I have since been advised that I could use the earth tag that comes with the gland by using it inside the plastic back box bend up the eye tag and put a bolt through the eye hole and connect an earth cable to act as an additional earth.
Is this recommended?
Also advised that as I am earthing the swa cable anyway the other end is going into a metal box that I dont need to take the above action in the MK weatherproof socket ?
I have many times used both banjo washers and the special earthing tags for flame proof fitting to get an earth in a plastic box. But it is very easy for the gland to warp the box and a lot of care is required.
As long as you test the earth loop impedance and it falls within the requirements no problem with not using link other end.
But I was assuming you would not test as required and you may lack some skill so I did not want to suggest something which may cause problems.
PS if steel nuts I would not put banjo on inside keep brass or copper as connection route.
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