110.24

[novemberaudi]

until recently I worked for a large multistate contractor where all the jobs had professional engineering. I am now working for a residential, small commercial contractor. My point is I have limited experience calculating available fault current. We recently reconfigured a 200a single phase service on a commercial building. New meter, Generac ats with main breaker, and new load center. The install passed inspection with no field fault current markings.

I have 3 questions. 1) Is this rule usually enforced. 2) Is it as simple as calling the utility? 3) Is it required on temp services?

 

[LEO2854]

until recently I worked for a large multistate contractor where all the jobs had professional engineering. I am now working for a residential, small commercial contractor. My point is I have limited experience calculating available fault current. We recently reconfigured a 200a single phase service on a commercial building. New meter, Generac ats with main breaker, and new load center. The install passed inspection with no field fault current markings.

I have 3 questions. 1) Is this rule usually enforced. 2) Is it as simple as calling the utility? 3) Is it required on temp services?

That depends on the inspector , inspecting commercial stuff,but the POCO will supply that information.

But you're in mass an 110.24 is deleted in the 2011 MEC.:thumbsup:

It is also deleted in the 2014 MEC too.