Over-Voltage Protection of Isolation Joints
hosted by World Pipelines

Isolation joints in pipelines may be subject to over-voltage failure due to lightning and, in some applications, AC faults. Without proper protection, such over-voltage events can damage the isolation kit and/or the flange and possibly ignite flammable contents within the pipeline. Various types of isolation joints appear in pipeline facilities, including fittings in measurement tubing, threaded unions, flanged isolators, and monolithic isolators. All types can fail if not properly protected.

This webinar will review the various types of isolation joints typical on a pipeline and explain why it is important to apply over-voltage protection on isolation joints. The use of solid-state over-voltage protection devices will be described and compared to other common solutions. Key application guidelines will be presented for these devices for use with isolation joints.