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OSHA 1910.269(l)(8)(ii) Note 2

OSHA 1910.269(l)(8)(ii) Note 2

OSHA 1910.269(l)(8)(ii) Note 2

OSHA 1910.269(l)(8)(ii) Note 2 contains this statement: "For example, the employer could estimate the heat energy just outside a substation feeding a radial distribution system and use that estimate for all jobs performed on that radial system."

Therefore, it seems that one could go maybe a couple pole spans outside the substation and determine the incident energy and use that for entire circuit. My concern would be that as one goes farther out on a distribution circuit the fault current lowers and the clearing time increases so that it could be possible that the incident energy is higher away from the substation.

Thoughts/opinions on using an estimate near the substation for the entire circuit?

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