James G. Stallcup

Code Contributor

James G. Stallcup is the CEO of Grayboy Inc., which develops and authors publications for the electrical industry and specializes in classroom training on the NEC and OSHA, as well as other standards. Contact him at 817.581.2206.

Articles by James G. Stallcup

March 2012
Last month, I discussed using the grounded conductor to ground and bond a separately derived system. In this issue, I discuss using the grounded conductor to ground and bond the distribution panel in a structure when supplied from switchgear in a substation or another structure. READ MORE
February 2012
In the November 2011 issue, I wrote about the rewrite of Section 250.30(A)(1) through (A)(8) in the 2011 National Electrical Code (NEC). Last month, I discussed the grounding and bonding procedures using the grounded conductor at the service equipment and outside utility transformer. READ MORE
January 2012
At a recent workshop that I was teaching, a question was asked about how the grounded conductor was to be installed and used when routed from the outside utility transformer to service equipment located inside the facility. READ MORE
December 2011
At the end of each workshop on the National Electrical Code (NEC), I allow time for discussion. At a major healthcare facility in Houston, I fielded questions pertaining to installations of receptacles and other related equipment. Here are those questions and my answers, which are based on the 2011 NEC. READ MORE
November 2011
Section 250.30 is the topic of much discussion in every workshop that I instruct on the changes in the 2011 National Electrical Code (NEC). The section has been completely rewritten in an effort to make the requirements easier to read, understand and apply. Equipment-bonding jumper—250.102(D) Section 250.102(D) outlines an equipment--bonding jumper (EBJ) that is installed on the load side. READ MORE
October 2011
New Article 399 in the 2011 National Electrical Code (NEC) covers requirements for outdoor overhead conductors rated over 600 volts (V) that are used for the installation of feeders or branch circuits located on the load side of the service point. Articles 399 and 225 are worth a discussion of their permitted use. READ MORE
September 2011
I am writing this article in my hotel room in Anchorage, Alaska, where I just finished a two-day workshop on the changes to the 2011 National Electrical Code (NEC). A number of engineers at the seminar were very interested in the fire-pump requirements as outlined in 695.3 and 695.4. READ MORE
August 2011
This article outlines procedures for means of providing safe access, pathways and areas considered appropriate for egress to and from photovoltaic (PV) systems. It contains techniques for inspecting the location of PV direct current (DC) circuit conductors installed on or in buildings or structures. READ MORE
July 2011
This article continues outlining the procedures for means of providing safe access, pathways and areas considered appropriate for egress to and from photovoltaic (PV) systems. The cell, module, panel and array generally make up a PV system. However, for complete operation, the system must be connected, and pathways must be provided for safe access and egress procedures. READ MORE

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