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What is the minimum arc rating (cal/cm2) of protection used by your company?
4
8
11 or 12
25
40
Something else (please explain)
We are not using PPE
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 Post subject: Minimum Arc Rating of Protective Clothing and PPE
PostPosted: Mon Nov 22, 2010 2:26 am 
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1637
Location: Scottsdale, Arizona
What is the minimum arc rating (cal/cm2) of protection that you and/or personnel at your company wear?

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Jim Phillips, P.E.
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PostPosted: Thu Dec 16, 2010 7:51 am 

Joined: Sun Dec 12, 2010 5:00 pm
Posts: 27
Location: Idaho
Electrical Lead

On our arc flash labels, it is stated at 18", but we have down to .4 at 18" up to 182.7 for extreme danger cases. PPE only up to CAT4.


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PostPosted: Wed Dec 29, 2010 8:56 pm 
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Joined: Thu Oct 18, 2007 7:10 pm
Posts: 263
Location: NW USA
Risk category 1 or risk category 2 to enter that plant ( two different locations with different policy) and then a fully rated arc flash suit (above 40 cal/cm2) to put on when encountering any higher than RC 1 switchgear.


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PostPosted: Mon Jan 03, 2011 7:14 am 

Joined: Fri Sep 05, 2008 8:10 am
Posts: 36
We are requiring non-melting clothing minimum. Coveralls rated HRC 2 and faceshields/balacalava available when required. Also HRC 4 suit and related equipment available when needed.

I should add this is a facility with the majority of equipment 2 or less.


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