Abstract
The traditional method for designing CP systems for pipelines involves assumptions pertaining to coating efficiency, current density requirements, and current output from anodes based on anode-to-earth resistance formulas. In this paper, the traditional methods are compared to an approach that 1) considers the possibility that coating damage can be discrete and 2) allows for nonuniform current and potential distributions along the surface of the pipe. Through a combined experimental and modeling program, it was shown that the nature of coating damage has a significant impact on the performance of a cathodic protection system.
© 1995 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).
1995
Association for Materials Protection and Performance (AMPP)
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