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Old 12-14-2017, 12:59 PM   #1
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I have a customer that wants arc flash labeling on one panel. It has a soft start in it that runs a 50 hp motor. I could provide wire and service info. Who should I call to have the analysis done and get the arc flash label?
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Old 12-14-2017, 04:13 PM   #2
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A electrical engineering firm that has experience in arc flash studies. I don't understand why you would want to label 1 piece of equipment.
You just can't pull numbers out of the sky.

Arc flash studies begin with information from the utility company and finish at the terminals of the loads.
It could take weeks if not longer to do such a study.
It is not blue collar work it is strictly white collar work and it has to be updated and redone every 5 years.

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Old 12-14-2017, 04:17 PM   #3
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I hope you didn't make an agreement to provide this at your expense. Pass on the information from the good poster above to your client and explain how expensive electrical engineer's can get. Good luck.


All else fails, pull a number out of your ass and go get your label.......
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Old 12-14-2017, 05:11 PM   #4
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Just use a sharpie.

I second what Mike said.
LC's advice is sound.
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Old 12-14-2017, 05:14 PM   #5
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We provide "ARC FLASH AND SHOCK HAZARD" labels at no charge to our customers, anything above and beyond that we stay out of it. I would suggest getting friendly with a EE if you want some kind of involvement with this process but I would leave that 100% to the customer.
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Old 12-14-2017, 05:19 PM   #6
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WQe complete Arc Flash Studies working with a local EE, we do all the footwork, he crunches the numbers and supplies drawings and labels.

There is one EC in our area that offers arc flash work(?) all his labels say the same thing NO LEVEL OF PPE IS SAFE FOR WORKING ON THIS EQUIPMENT
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Old 12-14-2017, 09:42 PM   #7
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Yes, arc flash studies are considered engineering work. Any "qualified person" can gather info, but an EE must present the final study.

In some states doing engineering work without a PE license, is a fineable offense.
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Old 12-15-2017, 12:26 AM   #8
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I was thinking I could provide the data to a firm that would provide the labels. If I understand correctly with the proper software itís just a matter of entering the transformer, breaker and wire information to determine the arc flash hazard.
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Old 12-15-2017, 05:30 PM   #9
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Dude, listen to the posters on this one. You do not want you name on this one. Only an EE and others with letters can do this. It ain't cheap so the less you touch the more you keep. Did you ask why? Follow the other posters and just pass it on. You can go as far as getting pricing for them but that's as far as I would go.
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Old 12-15-2017, 09:49 PM   #10
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Quote:
Originally Posted by GeneC View Post
Dude, listen to the posters on this one. You do not want you name on this one. Only an EE and others with letters can do this. It ain't cheap so the less you touch the more you keep. Did you ask why? Follow the other posters and just pass it on. You can go as far as getting pricing for them but that's as far as I would go.
We do not pass anything on, we do all the footwork and if necessary do the one line filling all the data for the engineer, he is our sub.
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