The power for a rural underground system is generally brought to the periphery of the area by an overhead distribution system, and on our system it is at 7200 volts. The supplying source is connected to a fused disconnect switch, or a protecting oil switch located under the line near the top of the pole for safety purposes. A lightning arrester is always connected at this point to protect the switch and all of the underground components from lightning surges.
Subject
Water,
Materials,
Voltage,
Conductors,
Vaults,
Transformers,
Cables,
Metals,
Steel,
Copper,
Soil,
Drainage,
Electrolytes
© 1969 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).
1969
Association for Materials Protection and Performance (AMPP)
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