This three part training session focuses on key mitigation concepts including touch/step potentials, lightning & AC fault considerations, ground mat design, and the use of decouplers in mitigation design.
A common application of DEI products in cathodically protected systems is to provide over-voltage protection due to lightning. A typical example would be that of providing over-voltage protection of an insulated joint in a gas transmission pipeline.
Over-voltage protection is greatly affected by the proximity of the device relative to an insulated joint or other structure being protected. This effect is independent of the protective device being used, as it is mainly due to the length of the conductor.