Cart (Loading....) | Create Account
Close category search window
 

IEC method of calculation minimum approach distances for live working

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Gela, G. ; EPRI Power Delivery, Lenox, MA, USA ; Hotte, P.W. ; Charest, M.

After 10 years and as many drafts, the proposed IEC standard 61472 is now in the final voting stage. The standard, when published, will define the IEC method of calculating minimum approach distances (MAD) for live working for use worldwide. The standard 61472 provides a method of calculating MAD for voltages between 1 kV and 800 kV AC. In common with other standards, the MAD is taken to consist of two components: an electrical component, DU, and an ergonomic component, DE. The component DU is calculated to minimize the risk of breakdown for all voltages expected at the worksite. The rationale for calculating DU is based on IEC Publications 71-1 and 71-2. The component DE depends on work procedures, training, workers' skill, type of construction, contingencies such as inadvertent movement and errors in judging distances. Guidelines for selection of DE are included in IEC 61472, but without giving specific values. Atmospheric conditions and specific details of the worksite (such as the effects of broken insulators and electrically floating conductive objects) are counted for through the application of correction factors. Guidelines for selecting the values for these factors are included. This paper provides an overview of the IEC method of calculating MAD, its background and theoretical foundations, and gives comparisons with the IEEE/ESMOL method, which is defined in IEEE Std 516-1995. The paper concentrates on systems voltage levels above 72.5 kV, and on phase-to-ground distances

Published in:

Power Delivery, IEEE Transactions on  (Volume:15 ,  Issue: 2 )

Date of Publication:

Apr 2000

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.