The Effects of High-Voltage DC Power Transmission Systems on Buried Metallic Pipelines

The types of high-voltage direct-current (HVDC) system configuration and the detrmental effects that this type of transmission can have on its surroundings are summarized. Discussed in detail are the test procedures followed and camred out to determine some of the effects on a major pipeline by simulated conditions, followed up by tests with the actual HVDC system and subsequent tests with the operating HVDC system at its initial and ultimate load levels and how the experienced interference was offset by conventional cathodic protection methods.