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 Post subject: 130.2(B)(2)(5) Elements of Work Permit
PostPosted: Sun Apr 22, 2012 2:55 pm 
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(5) Results of the arc flash hazard analysis
a. Available incident energy or hazard/risk analysis category

Add language and change to:

a. Available incident energy and working distance [color=#000000]or hazard/risk analysis category[/color]

[color=#000000]Reason: Incident energy calculations are based on a specific working distance which if varied, will change the incident energy.[/color]

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PostPosted: Sun Apr 22, 2012 5:59 pm 
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At the current time almost everyone is keeping the working distance the same as it is specified in IEEE 1584, right, wrong, or indifferent, except in isolated cases. Doing this has value only in cases where it varies from the default. There is more value in knowing the barricade boundary (limited approach or arc flash boundary, whichever is greater), which indicates how to set up the work site.


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PostPosted: Mon Apr 23, 2012 6:18 am 
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Good idea - working distance should be included, but how about: Available incident energy at the corresponding working distance.

Adding "corresponding" is the exact wording in 130.5(C)(1) Equipment Labeling


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PostPosted: Mon Apr 23, 2012 12:32 pm 
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K. Engholm wrote:
Good idea - working distance should be included, but how about: Available incident energy at the corresponding working distance.

Adding "corresponding" is the exact wording in 130.5(C)(1) Equipment Labeling

Good idea! "corresponding" it is.

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