Texas Electrical Excel

This Article is extracted from Mike Holt’s  Illustrated Guide to Understanding NEC® Requirements for Solar Photovoltaic Systems. Understanding NEC Requirements for Solar Photovoltaic Systems, Based on the 2011 NEC Click here to buy a copy or read more about it.       *Please note in the follwing extraction that  blue underlined text  indicates a 2014 NEC change. Section 690.47 – Grounding Electrode System (A) Alternating-Current PV System Grounding Requirements.  For ac PV systems, a grounding electrode system must be provided in accordance with 250.50 through 250.60, with the ac grounding electrode conductor installed in accordance with 250.64. Figure 690–109 Figure 690–109 (B) Direct-Current PV System Grounding Requirements.  For dc PV systems, a grounding electrode system in accordance with 250.166 for grounded systems, or 250.169 for unground...

18 Articles You MUST Highlight If you are preparing the electrical exam , you should know that the exam is open book.  Have you seen the size of the book?  The 2014 NEC book is at least 910 pages long!  We sell highlighted and indexed/tabbed book for those of you preparing for the master electrical exam and the journeyman electrical exam. We are sharing with you today some of the articles that we highlight in our books , feel free to share this with everyone you know.  Don’t forget to sign up for our newsletter if you want to see more free tips. Listed below are 18 Articles you MUST highlight in your book.   These articles and tables are based on the 2011 NEC book.  If you have an older version or newer version, make sure to highlight the article based on the title of the article. These articles will be ones that you will have to refer to during any electrical exam.  Whether you are studying for the ICC exam or the PSI exam, thi...