Insulated Joint Protection

Any site with induced AC voltage to levels that require mitigation needs a product that provides AC grounding, without compromising the cathodic protection voltage. The device must be suitable for conducting steady-state AC current while blocking DC current, when connected between pipeline and ground.

The steady-state induced voltage can be measured between the two points of interest using a multimeter set to AC volts. NACE recommends that a voltage of 15V or greater be mitigated, however even lower amounts can be a hazard or cause AC corrosion.