Wiska provides a pack of 2 brass continuity earthing plates suitable for earthing SWA cable in the Wiska Combi 308 Weatherproof Junction Box. It is simply to fit the clamp into the Combi 308 and screw the BW/CW SWA gland into the threaded entry.
Earthing accessory
Speeds up installation of SWA cable
Two entries
Screw supplied to attached earth wire
Supplied with screws to clamp on BW/CW cable gland is not included