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01Oct92 UK: BICC COMPONENTS LAUNCHES NEW RANGE OF JOINTS WHICH CAN BE USED ON ALL TYPES OF 11 KV ELECTRICAL CABLES.

BICC Components has announced a range of joints which can be used on all types of 11 kV electrical cables.The new joint is easier to install, without specialised tools, and is claimed to provide improved electrical integrity when used on traditional impregnated paper cables or new design polymeric products.Two sizes of joint are available (185 and 300 sq mm) and the company can supply branch versions to use on aluminium and copper conductor cables. It has a shear-head mechanical connector which, when it reaches the correct torque, shears off and produces a constant electrical connection.The connector's solid centre provides better protection against the impregnant from paper cables attacking the polymeric insulation. There is a combined insulation and stress control moulding made from a rubber material and the entire joint is encapsulated in an acrylic or polyurethane resin which fills any gaps to provide a barrier to corrosion and moisture ingress, as well as giving mechanical protection.When used for impregnated paper cables, the company can supply a joint with a heat-shrink tube which acts as a barrier to retain the impregnant and protect the paper insulation during jointing. With this system installers do not have to use varnish and terylene tape to prevent possible leakage from the cable core insulation.