National Electrical Code (NEC)Commented on: 24 weeks ago (June 17, 2016)
I recommend you read through these two articles that we published last year. I think it will really help you understand the steps required to size the protection devices.
National Electrical Code (NEC)Commented on: 1 year ago (December 4, 2015)
NFPA publishes the National Electrical Code (NFPA 70). They offer free online access to many of their codes and standards. Follow the directions on this page to access the document on your own...
Solar & PhotovoltaicCommented on: 2 years ago (August 27, 2014)
We published an article in our December 2013 issue on the topic of PV interconnection basics (...
Motors & Motor ControlsCommented on: 2 years ago (August 27, 2014)
Have you checked with any electrical distributors in your area to see if they can connect you with a good source?
General Electrical Talk DiscussionCommented on: 2 years ago (May 19, 2014)
If I'm not mistaken, I believe HFT conduit is halogen free, flame retardant, and temperature resistant.
The NEC uses a capital i (I) when referencing classes. We should have done the same in our headline. Thanks for bringing this to my attention. I've corrected it on this article page.
Thanks Keith! You're correct. The author mistakenly pulled the wrong number from the table. I've corrected the text to reflect the proper VA value.
Here's an earlier article that Mike Holt wrote for us on the topic of properly sizing conductors and protective devices for A/C and refrigeration equipment.
I corrected the error in the main text.
Yes. A third restriction was added in the 2011 Edition of the NEC calling for the addition of a warning label to be applied to the enclosure that identifies the closet disconnecting means for any...