Accepted industry practice for corrosion protection of buried pipelines is the use of an insulating non-metallic pipe coating, supplemented by cathodic protection. The coating shields the pipe from the corrosive environment and the cathodic protection insures that faults in the protective coating which could become corroding anodic areas, are protected electrochemically. As the pipeline ages, coating effectiveness as a barrier to the corrosive soil usually diminishes and more reliance is placed on cathodic protection to prevent attack.
© 1978 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).
1978
Association for Materials Protection and Performance (AMPP)
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