Standard electrical protection methods, such as gas tubes or solid-state devices are ineffective in protecting equipment from Ground Potential Rise. These devices are normally placed at each end of a communications network and are designed to direct foreign voltage impulses into a grounding system.

During a ground potential rise, these devices merely offer an additional path to remove ground references, and actually provide a path for current to flow in the reverse direction from which they were intended to operate. The only effective protection scheme against Ground Potential Rise is an Isolation device.

Kenton understand what is required to design and implement a safe and effective protection scheme, and have been providing isolation devices into major telecommunications companies for over 10 years.

Kenton manufacture a range of Wire-Line isolators that use state-of-the-art technology to isolate and protect telephone facilities and personnel from the hazardous voltages associated with Ground Potential Rise. The wire-line isolator breaks the copper continuity of the communication line as it enters the building, thus eliminating the conductive bridge. It acts as a dam between the site and exchange, whilst allowing all of the communication signals to pass through transparently but preventing any fault currents from passing onto the lines.