... -70220.80(1) The conducting wire used in the Piercing Clamp must meet the National standards,(2)The conducting wire in ... insulating sleeves wrench,when under charged operation,(5)The Piercing Clamp belongs to the disposable products,never repeated use after use ... (1) Simply structure easy installating ,(2) Reliable earting,(3)Good insulation performance Insulation Piercing Clamp (IPC)