Precautions For Using Tension Clamps When Using Insulated Wires

When using insulated wires, we need to pay attention to the fact that bolted type strain clamp is clamped on the outer diameter of the "wire" rather than the outer diameter of the "conductor" when used, so the dead end strain clamp model to be used should be selected according to the outer diameter of the wire rather than the outer diameter of the conductor. For example, in the power line, JKLGYJ-150/8 steel core reinforced cross-linked polyethylene insulated overhead cable is used. It is calculated that its conductor outer diameter is 15.30mm, plus its insulation thickness of 3.4mm and conductor shielding thickness of 0.5mm, it can be known that its conductor outer diameter is 23.1 mm. According to the table above, the bolted dead end clamp that should be used is NLL-5.