Answering questions that may arise related to the meaning of portions of an IEEE standard concerning specific applications.

IEEE Standards Interpretation for IEEE Std 1410™-2004 IEEE Guide for Improving the Lightning Performance of Electric Power Overhead Distribution Lines

Copyright © 2011 by the Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue New York, New York 10016-5997 USA All Rights Reserved.

This is an interpretation of IEEE Std 1410-2004.

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December 2011

Interpretation Request #1
Topic: Lightening
Clause: Annex B, Table B.2 and Table B.3

Can you please clarify where the quantities of “Number of Flashovers/100km/yr” for corresponding values of “spans between arresters” can be determined from the information stated in Table B.2?

Interpretation Response #1
The quantities are obtained by using the information contained in Section B.4.2 Induced-voltage flashovers. This is the information just previous to Table B.