Reverse current electrolysis switches have been used for many years to minimize stray current corrosion damage to underground metallic structures. Various types of systems have been utilized with varying degrees of success.1, 2, 3, 4 During the past thirty years the power electronics industry has come of age resulting in new, more reliable, higher power devices for the corrosion engineer to utilize in the fabrication of reverse current switches. This paper will examine the need for such units as well as compare and optimize their usage.

Subject
Electric current, Voltage drops, Voltage, Structures, Impedance, Wiring, Waves, Electrochemical current, Rectifiers, Silicon, Equipment, Stray current, Electrode potential
© 1980 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1980
Association for Materials Protection and Performance (AMPP)
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