Tightening Torque Management Of Parallel Groove Clamps

When torque is insufficient, the contact surface between the bolt and nut cannot achieve the ideal contact state, potentially leading to a decrease in the mechanical properties of the single bolt parallel groove connector connection. The torque wrench should be applied continuously in the same direction. Avoid rotating in the opposite direction before reaching the specified torque. Such reverse operation will increase the risk of thread damage and prevent the mating parts of parallel groove clamp from mating properly.

If under-tightening of the torque wrench occurs during the installation of parallel groove connector, common manifestations include bolts failing to firmly engage the conductor or slight loosening. Such situations typically require on-site re-inspection and adjustment of the force parameters to ensure the stability of the mechanical and electrical connections after aluminium pg clamp is put into operation.