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Code QuandariesSep 1, 2009 12:00 PM, By Mike Holt, NEC Consultant Q. What are the NEC grounding requirements for satellite dishes?... |
Addressing Ground Faults on MV Generators
Jul 1, 2009, By Sergio Panetta, P.E., i-Gard, and David D. Shipp, P.E., Eaton Electrical Systems & Services
Medium-voltage (MV) generators are not designed to withstand full fault current during a single phase-to-ground fault, which is why they are connected...
Pools and Spas — Part 3 of 3
Jun 1, 2009, By Mike Holt, NEC Consultant
How to meet Art. 680 requirements for wiring fountains, pools, and spas per the National Electrical Code (NEC)...
Primary Care Electrician
Apr 1, 2009, By David Herres, Master Electrician
Understanding the specific challenges involved in of working on electrical systems in health care facilities...
Plumber Electrocuted After Installing Unsafe Temporary Power Connection at New Construction Residential Housing Development
Mar 1, 2009, By Chris Shiver, P.E., Cerny & Ivey Engineers, Inc.
When plumbers Jim and Dave arrived at a new residential development, their task at hand certainly seemed routine performing trim-out work (installation...
Basic Training
Jan 1, 2009, By Michael Eby, Editor-in-Chief
You would think one of the most basic concepts of an electrical system would be the most widely understood. But after years of working in the electrical...
A Killer in the Ranks
Jan 1, 2009, By Tom Zind, Freelance Writer
Of more than 4,000 U.S. military deaths recorded in Iraq since the 2003 invasion, two, in particular, have haunted the halls of Congress, corridors of...
Understanding the Differences Between Bonding, Grounding, and Earthing
Jan 1, 2009, By Larry Ray and S. Frank Waterer, Square D Engineering Services/Schneider Electric
The importance of bonding and grounding in commercial, industrial, and institutional buildings cannot be overstated. The grounded circuits of machines...
To Catch a Thief
Nov 1, 2008, By Beck Ireland, Staff Writer
For the last five years, Mesa has been battling an escalating copper theft epidemic....
The Case of the Houseboat Electrocution
Oct 1, 2008, By Andrew Paris, P.E., Anderson Engineering
Soon after a young family purchased a vacation condominium on a local lake, they were anxious to entertain guests. One summer weekend, they invited another...
The 10 Worst Grounding Mistakes You'll Ever Make
Aug 1, 2008, By David Herres, Master Electrician
Proper grounding and bonding prevent unwanted voltage on non-current-carrying metal objects, such as tool and appliance casings, raceways, and enclosures, as well as facilitate the correct operation of overcurrent devices....
The How's and Why's of IG Wiring
Aug 1, 2008, By Thomas M. Gruzs, Emerson Network Power
It's hard to buy a new electrical device these days that doesn't contain electronics....
Cathodic Protection Systems and the NEC
Jun 1, 2008, By Whitt L. Trimble and Eddie Guidry, Fluor Enterprises, Inc.
During the 2005 National Electrical Code (NEC) review cycle, a relatively simple revision was made that created a significant change on the cathodic protection (CP) systems of petroleum and chemical facilities (plants)....
Article 600: Electric Signs and Outline Lighting
Jun 1, 2008, By Mike Holt, NEC Consultant
Every commercial occupancy needs a form of identification, the standard method of which is typically the electric sign. This is one reason why you'll be working with Art. 600 if you do much commercial or industrial work....
The Pros and Cons of IG Wiring
Nov 1, 2007, Edited by John DeDad, senior director, editorial and EC&M development
Confusion continues to surround the use, performance, and NEC requirements of isolated ground (IG) wiring. Can it be used anywhere, or is it restricted...
Observations on Supplemental Grounding and Bonding: Part 3
Sep 1, 2007, By William Bush, Panduit
In Part 2 of this article (August 2007), we described multipoint (or common-type) supplemental grounding and bonding between the T(M)GB [notation used...
