Impressed Current Cathodic Protection Safety Rectifier Guideline

Publication #: 2018-0036

Published: NOV 2018

Pages: 58p.

Filed Under: Health & Safety, Industry Operations

Impressed current cathodic protection systems are a technique for controlling the corrosion of a metal surface by making that surface the cathode of an electrochemical cell. Impressed current cathodic protection systems are in widespread use at thousands of oil and gas surface production facilities, and serve to prevent failure of piping and other facilities which may lead to uncontrolled release of products, resulting in safety hazards to workers and the public, and environmental contamination.

Cathodic protection rectifiers are used to convert AC current to DC current in order to supply impressed DC current to the protected facilities. The interiors of these rectifiers contain numerous energized electrical components; and for a cathodic protection worker, the interiors of these rectifiers pose the highest risk of electric shock hazard in the cathodic protection system. Tragically, a cathodic protection worker was electrocuted in 2004 as a result of accidentally contacting ener

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