['Electrical Safety']
['Clearance Distances']
12/27/2024
Copyright 2025 J. J. Keller & Associate, Inc. For re-use options please contact copyright@jjkeller.com or call 800-558-5011.
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The standards require the employer to establish minimum approach distances that employees must maintain from exposed energized parts. The employer must base those distances on formulas set by the standard or follow default minimum approach-distance tables contained in the standard.
Appendix B to the standard provides tables listing minimum approach distances for conditions common in electric power transmission and distribution work. Employers may use these tables to establish minimum approach distances under the exposure conditions covered by the tables. In addition, Appendix B provides guidance on:
- How to comply with the minimum approach-distance requirements in the standard,
- How to use portable protective gaps to limit maximum transient overvoltages at the worksite and thereby reduce minimum approach distances, and
- How to calculate minimum approach distance when employers use portable protective gaps.
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['Electrical Safety']
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