Prior to revenue operation on the WMATA Upper A-Route, the operators of nine high pressure natural gas pipelines indicated that they had a possible stray current interference problem. An ambitious test program was conducted which resulted in solutions which were both unique and innovative. The solutions included a combination of traction power segregation and the development of special fasteners for the wood tie and ballast tracks. The program when completed proved to be successful and the stray current activity associated with the Upper A-Route was virtually eliminated.

Subject
Rail, Costs, Test methods, Substations, Voltage, Pipelines, Installation, Traction, Stray current, Corrosion protection, Risk reduction, Fasteners, Negative return
Keywords:
Stray current, transit system, track fastener, track isolation, mainline segregation, track-to-earth resistance, pipeline sectionalization
© 1994 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).
1994
Association for Materials Protection and Performance (AMPP)
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