Polyduct?

[benten69]

Plastic conduit through the wall makes it easier to get the cable through. Don't worry about the size as long as you can poke the cable through without damage.

I would be more concerned about clipping direct the swa cores and bedding. Put it in some properly installed conduit or trunking.

Perfect! Thanks for that! Will run some conduit for the bedding/cores in the house/garage and use some of it to feed through the wall also.

 

[Richard Burns]

The hole in the wall should be close to the cable size, the wall itself will act as a heat sink to allow the cable to cool, this would not be the case in ducts or trunking especially with lots of cables, a single cable is not so much problem.

SWA with the armour removed is not considered as protected by a sheath and so this would constitute exposed insulation which is not permitted.
Therefore it is good that you are enclosing it in conduit.