Tension Clamp for Earth Wire Tension Clamp For Earth Wires are for use by trained craftsmen only. Dead-end clamps should not be used by anyone unfamiliar or untrained in their use. Wire Tension Clamp Tension clamps are designed to non-rigidly secure installation cables to brackets, fasteners on buildings, or utility poles. Cable clamps are installed at the beginning and end of cable runs, suspensions, branches and turns. Tension clamps can also be used where cables sag on large straight sections or form under the influence of increased tensile loads. The design of the products is simple. One of the most popular consists of a cone, a pair of plastic toothed wedges that act as clamping devices, and a steel ring. The principle of operation is simple and consists of self-tensioning the cable using the movable wedges of the clamp. The sale of tension clamps and their use significantly reduces the time and physical costs of installation work. This cable attachment element offers the following advantages There is no need to strip the insulation to expose the mating cable during use; Simple installation, reducing the possibility of errors; No special training of installers is required; No special tools are required to prepare cables for installation; Reduced risk of cable damage and compromised integrity.