During recent years there has been a trend towards development and application of current density monitoring equipment in combination with potential measurements on the North Sea structures. In the same period there has also been a strong development of numerical methods for computer modeling of offshore cathodic protection systems. This paper presents results obtained with such modern techniques in monitoring of North Sea platforms. In particular the results demonstrates that the current density requirements for CP in the North Sea are considerably lower than normally anticipated. It is furthermore shown that the sacrificial anode weight may be reduced by introducing changes in the design rules, taking these findings into account.

Subject
Steel structures, Galvanic anodes, Anode potential, Anodic protection, Modeling, Cathodic protection, Anode surfaces, Current densities, Anodic current, Steel, Risk reduction, Sacrificial protection, Anodes
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
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