Insulated Piercing Grounding Connector with Tap Ring for Maintenance

An Insulation Piercing Connector (IPC) is a specialized electrical fitting used to connect branch lines to main insulated overhead conductors (like ABC cables) without stripping the insulation jacket. Inside the weatherproof plastic housing, sharp metallic contact teeth (usually made of tinned copper or aluminum alloy) pierce through the cable insulation sleeve under a specific tightening force, making contact with the inner metal conductor to establish a highly reliable electrical joint.

The shear-head torque nut is designed to guarantee safe and standardized installation. It controls the clamping force dynamically during tightening. Once the optimal tightening torque (approx. 20 Nm for model JJCF10-240/16) is reached, which ensures the contact teeth have fully pierced the insulation and established perfect electrical contact without damaging the conductor strands, the top hexagonal head of the nut automatically shears off. This prevents under-tightening (causing poor contact) o

The JJCF10-240/16 is specifically configured with a wire range of 50-240mm on the main side, while its branch connection is dedicated to grounding systems. In MV/LV distribution networks, it serves as a safety portal for lightning protection bypass, temporary line earthing during system maintenance, and arc-voltage drainage. It allows electrical utility workers to safely hook earth wires or voltage detectors to the grounding device without compromising the overall insulation of the overhead lin

es. All Hebei Yifa Insulation Piercing Connectors (including the JJCF series) are rated IP67 waterproof. They feature thick, flexible silicone/rubber sealing rings embedded inside the reinforced glass-fiber polyamide casing. This heavy-duty shell is highly resistant to aggressive outdoor factors, including intense UV rays, ozone, acid rain, and extreme seasonal temperatures ranging from -40C to +85C. Under testing, the sealed joint can withstand 10kV AC underwater voltage for 1 minute without