The conductor housings are connected by means of a self-gripping joint clamp. The self-drilling screws, as supplied, ensure an extra firm connection with longer system lengths (from 80m length 2 pc. per joint; from 200m length 4 pc. per joint). Adhesive tape (T50) is used to ensure a permanent shroud around the housing joints, prior to fitting the joint clamps, for both indoor and outdoor installations.