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I have a slightly odd requirement that means I am wanting to route a 3 core 4mm SWA cable (14mm outside diameter) from outside through a cavity wall into a garage to the isolator just inside. The cable is actually carrying DC feed from a small solar ground installation.
How should I shield the cable at the point it enters the wall so no water can get in?
I was thinking of a small IP55/65 junction box with a hole through the rear and a gland on the bottom but it means threading the box onto the cable before feeding into the wall which is a bit awkward. I know I could terminate it into the enclosure and then run dc cable through the wall but it is a seafront location and it seems far more sensible just to do the termination the other side of the wall straight into the isolator.
Are there any other options such as a large wall plate like I would use for coax?
How should I shield the cable at the point it enters the wall so no water can get in?
I was thinking of a small IP55/65 junction box with a hole through the rear and a gland on the bottom but it means threading the box onto the cable before feeding into the wall which is a bit awkward. I know I could terminate it into the enclosure and then run dc cable through the wall but it is a seafront location and it seems far more sensible just to do the termination the other side of the wall straight into the isolator.
Are there any other options such as a large wall plate like I would use for coax?