The first electric powered railcar ran in the early 1800's, but it wasn't until 1891 that traction stray current was recognized as a cause of corrosion. A resurgence in rapid transit construction brings a new interest in stray current corrosion mitigation. The proper design of new systems can virtually eliminate stray current. High speed equipment on old systems can result in extreme stray current problems. The resistance of the rail cross section, spacing of substations, freedom from earth contacts and the magnitude of the traction current are factors affecting stray current. Placing drainage bonds to the negative bus of an undergrounded d.c. systems requires careful design and cooperation with other utilities.
© 1982 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).
1982
Association for Materials Protection and Performance (AMPP)
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