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John Benoit
I installed a new meter box and panel box on a single family residence In Rensselaer County, NY area.  This was a OH service with 2 1/2" rigid from top of the meter box up to the mast head.   I am going out the back of the meter box with SEC cable to the top of the panel. The meter box is directly outside from the panel box, so I am going to… (Show more)
in Electrical
Tammy Gammon
I would like a clarification on Table 130.7(C)(15)(a). As an example, the first entry is: Panelboards or other equipment rated 240 volts and below Parameters: Maximum of 25 kA available fault current; maximum of 0.03 sec (2 cycles) fault clearing time; minimum working distance 455 mm (18 in.)   Does the fault clearing time "maximum of 0.03 sec… (Show more)
in Electrical
My employer is convinced shock protection PPE, such as class zero gloves in a 480 volt bucket, are required within the limited approach boundary according to NFPA 70E (2015 and 2018). After close examination of 70E, I see that is not the case. I am looking for confirmation from my peers to help explain to the management that the restricted… (Show more)
in Electrical
martin yarbrough
I have a storm water application for which I am not finding a clear definition in regards to the area classification.  NFPA 820 defines a "storm sewer" as a "pipe or conduit that carries storm water and surface water, surface water...".  A Storm Sewer is classified as a Class 1, Division 2 area.  What is the classification of the open air wet well… (Show more)
in Electrical
Ghada Hajjar
Reference to NEC Article 517, section 517.30 (B), (2) titled “Transfer switches”: The number of transfer switches to be used shall be based on reliability, design, and load considerations. Each branch of the essential electrical system shall have one or more transfer switches. One transfer switch and downstream distribution system shall be… (Show more)
in Electrical
Adam Plagge
After looking at the PPE requirements for testing different voltages around 120v and under 1.2cal im not exactly sure on what is required/suggested PPE for testing a 120v light or outlet. I just want to make sure I am accurately applying the 70e when testing small stuff.
in Electrical
Brian Randolph
I don't see a forum specific for my area - I work for a cable company, and there is a question on bonding wire, and if our bonding wire can be spliced if it is damaged.  I believe that it needs to be continuous, and that it CAN be spliced if proper splicing methods are used.  Need to define it for our quality inspections - basically, I am trying… (Show more)
in Electrical
Cory kruip
Hello,    We are a California Electrical Contractor and we installed a new 1200 amp switch gear section for a retail center. This was a upgrade of a existing 1000 amp switch gear section.    We are running into issues with the local city on the requirements on the working space for the existing electrical room. The code states in the NEC on… (Show more)
in Electrical
Michael Schnell
I was looking up the conduit fill for #6 THHN in 1" EMT and according to Annex C1 it says you can fit 7.    When I got to chapter 9 table 4 it says that the area of 1 inch EMT is 0.346    Next I look at Chapter 9 table 5 and it says the each #6 THHN is 0.0507   0.0507 x 7 =  0.3549 Am I doing something wrong? 
in Electrical
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