Connecting SWA armour to Earth

[sparksburnout]

I've got what seems a simple situation here that I am probably having a senior moment over. I am running a 3 core SWA to an outbuilding, it's overhead (catenary) then down internal wall into CU. The existing wiring is all in nice neat trunking into top of CU. Is there a fitting/gland that I can use inside the trunking to terminate the armour of the SWA onto a CPC to the MET? I can't fit a gland as there is a big cutout in the top of the CU the same size as the internal trunking aperture. I will be terminating the other conductors directly into the CU. Would it be OK under the circumstances (no stress on the cable) to just use a gland/banjo to extend the armour to the MET? It would be "floating" within the trunking?? I do not want to use T&E and then join this to the SWA anywhere prior to it leaving the building.

 

[shanky887614]

I've got what seems a simple situation here that I am probably having a senior moment over. I am running a 3 core SWA to an outbuilding, it's overhead (catenary) then down internal wall into CU. The existing wiring is all in nice neat trunking into top of CU. Is there a fitting/gland that I can use inside the trunking to terminate the armour of the SWA onto a CPC to the MET? I can't fit a gland as there is a big cutout in the top of the CU the same size as the internal trunking aperture. I will be terminating the other conductors directly into the CU. Would it be OK under the circumstances (no stress on the cable) to just use a gland/banjo to extend the armour to the MET? It would be "floating" within the trunking?? I do not want to use T&E and then join this to the SWA anywhere prior to it leaving the building.

have a look at an earth nut

or piranha nut, ill find a pic

 

[davesparks]

Either gland to the trunking, assuming its proper trunking (steel) or if it is wibbly wobbly plastic trunking fit a small adaptable box to gland the SWA into.
Alternatively use a galv through box to gland into.