A new design concept has been introduced for cathodic protection of offshore pipelines. Basis for the design has been the new ISO draft Standard 15889-2 on pipeline cathodic protection for offshore pipelines. Several of the new design parameters have been challenged and the new concept gives a significantly increased distance between anodes.

The paper will give a detailed overview with regard to selection of protection potentials and the current density requirements.

Subject
Test methods, Materials, Galvanic anodes, Piping, Cathodic protection, Repassivation potentials, Pipelines, Current densities, Coating breakdown, Protection potential, Stress corrosion cracking, Electrode potential, Anodes
Keywords:
Cathodic protection, pipelines, new design
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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