The topic of grounding and bonding as it relates to the National Electrical Code (NEC) and proper installations still seems to be a mystery to many electricians, engineers and inspectors. In the author’s travels around the U. S. and Canada, this seems especially true as it relates to services, separately derived systems, and when another [...]
(1 votes, average: 5.00 out of 5)A few months ago I spoke with a very successful contractor about a trip that he and his wife made to see the pyramids and he spoke of the process of constructing the pyramids then versus now. Of the “Seven Wonders of the Ancient World,” the only one still in existence is the Great Pyramid [...]
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As the chairman of the IAEI CEO/Executive Director Search Committee, I am pleased to report the process of recruiting a replacement for James Carpenter is complete. While it has been a lengthy task of great importance to the association, the committee was committed to making a selection based on a dedication to the future of [...]
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Connecting the utility-interactive inverter to the utility grid properly is critical to the safe, long-term, and reliable operation of the entire system. The ac output circuit requirements and the circuits that carry the inverter current in the premises wiring are somewhat complex. However, meeting Code requirements can and should be accomplished to ensure a safe [...]
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You’re on the operating table, the surgery is almost over. The procedure has gone well. The doctors and nurses are walking in liquid on the floor covered with antiseptic, your blood, and other fluids. As your doctor is making the final repairs, a nurse is at the computer typing in some data; then she turns [...]
(10 votes, average: 4.80 out of 5)
With any hazard there is a definable risk and a definable impact and it is no different for the arc-flash hazard. Quite often the impact in business interruption far outweighs the physical damage to equipment and industry statistics would suggest that the average physical equipment damage is around $50,000 and the business interruption cost around [...]
(1 votes, average: 5.00 out of 5)
Requirements for the correct location and placement of a receptacle on a peninsular are found in Article 210, Part III. It is more specifically found in subsection 210.52(C)(3). The National Electrical Code® informs us that at least one receptacle is required for each peninsular that has a countertop dimension of 24 inches or greater for [...]
(16 votes, average: 5.00 out of 5)
Since at least 1940, the National Electrical Code has contained a requirement for ampacity correction of installations subject to high temperature conditions. In the 2005 NEC, a new fine print note was added to inform code users that if conductors in conduit were exposed to direct sunlight in close proximity to rooftops, they might experience [...]
(3 votes, average: 3.67 out of 5)
After a well-known fiasco of the 1990s, electric vehicles are making a rapid and confident comeback. They are here to stay and to change our lives. Are we ready for them? Let’s take a look. Section 86 of the 2009 edition of the Canadian Electrical Code has been revised to clarify that an electric vehicle [...]
(No Ratings Yet)
This article looks at Rule 10-814 and the bonding conductor sizes given in Table 16 as they apply to resistance grounded systems. We’ll review the question—are the Table 16 minimum wire sizes appropriate when maximum available ground faults are limited by resistance grounding, or are there any circumstances when bonding conductors might need to carry [...]
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IAEI, as the keystone of the electrical industry, is a membership driven, non-profit association promoting electrical safety throughout the industry by providing premier education, certification of inspectors, advocacy, partnerships and expert leadership in Electrical Codes and Standards development.
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