Relationship Between Contact Resistance Of Piercing Clamp And Resistance Of Branch Conductor Of Equal Length

cable piercing connector After puncture, a stable electrical contact is formed with the conductor, and the overall contact resistance is maintained within a range close to that of the resistance of the branch wire of equal length. According to the DL/T765.1-2001 testing standard, the electrical contact resistance of cable ipc connector should not exceed 1.1 times the resistance of the branch conductor of equal length; such a resistance level is considered a reasonable engineering parameter in power distribution networks.

Achieving this resistance performance is based on the design of the contact blade and the preset torque control device within electrical piercing connector. The puncture mechanism directly forms a metal contact point on the conductor insulation layer. The interface between the blade and the conductor eliminates the surface oxide film through mechanical extrusion, increasing the actual contact area and thus reducing the resistance contribution.