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 Post subject: Should Engineer Require an Arc Flash Risk Assessment?
PostPosted: Wed Oct 24, 2018 8:21 am 

Joined: Sun Aug 16, 2015 6:43 am
Posts: 3
Hi everyone, it's my first post on this forum, but it has been very helpful in the past to read through the topics.

I do both arc flash risk assessments as well as design engineering. I am currently designing and specifying a generator / automatic transfer switch installation for a public safety building. It is a single phase, 400A, 240/120VAC service.

What I am wondering is if you think that the specifying engineer should require an arc flash risk assessment as part of the project, or should I make a recommendation to the client that one be performed, or neither?

They have a budget in mind already that only includes the generator, transfer switch, and installation.

Thanks!


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 Post subject: Re: Should Engineer Require an Arc Flash Risk Assessment?
PostPosted: Thu Oct 25, 2018 7:20 am 
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Joined: Mon Sep 17, 2007 5:00 pm
Posts: 1479
Location: Scottsdale, Arizona
In a past life, I performed studies for both existing systems and systems where new equipment / construction was involved – the latter was usually specified by the designer. When I provided design services, the studies would often be part of the design.

As a minimum, it would be prudent to at least recommend the owner have a risk assessment performed and cite the appropriate standard requirements. i.e. NFPA 70E, IEEE 1584, OSHA etc. When the importance is emphasized (safety), perhaps they will consider the study.


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 Post subject: Re: Should Engineer Require an Arc Flash Risk Assessment?
PostPosted: Mon Oct 29, 2018 8:05 am 
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Joined: Fri Jul 08, 2016 10:01 am
Posts: 227
Location: Indiana
When we hire consultant engineers at the university where I work to perform electrical designs for new buildings and major remodels I require they perform the studies. On small projects I do the studies myself.

Here is what I require:

https://www.bsu.edu/-/media/www/departmentalcontent/facilities/pdf/26%200573%20arc%20flash%20hazard%20analysis%20short%20version.pdf

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 Post subject: Re: Should Engineer Require an Arc Flash Risk Assessment?
PostPosted: Mon Nov 05, 2018 10:14 am 

Joined: Mon Dec 07, 2015 9:45 am
Posts: 33
Location: Massachusetts
Most of our customers require a study be performed when new work is done, this is of course customers who have already had studies performed for all their facilities.

At a minimum the customer should be made aware they should have one performed, but ultimately it is up to them if they want to spend the money to do so.


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