This cable must not be kinked, crushed, or stretched. It must not be forced into sharp bends. Open ends must be protected from moisture.

Where the cable runs horizontally along brickwork, right angle corners are a problem. The cable must not be pulled tightly around the corner. If possible knock out a bit of mortar on the corner, so the cable can cut the corner. Even so, the corner needs to be taken gently, without putting the cable into a tight bend.

Flat bends on brickwork should have a radius of approx. 70mm. The cable should not leave a clip at a sharp angle to make the bend. Clips should support the bend where possible.

Where the cable passes through a wall in order to enter a patress (backbox) from the rear, the hole should be drilled from outside the building if possible in a mortar joint. This is to avoid damaging the brickwork. However, since the patress positioning might be critical this might not be possible. The hole should be sealed with mastic afterwards.

If open ends of cable are left outdoors overnight or during rain they must be left hanging downwards and temporarily sealed with tape.

Cable clips should be spaced 400mm max on horizontal runs; 4 courses of brickwork on vertical runs.