May is electrical safety month, during which the electrical industry draws attention to all aspects of electrical safety for persons and property. Section 90.1(A) of the NEC provides the essence and basis for this concept that is integral to the rules in the Code. These rules are all built on a foundation and premise related [...]
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The requirements and necessity for, and the location of disconnects in a photovoltaic (PV) power system are always of great interest. While PV equipment manufacturers, designers, installers, and electrical inspectors are all interested in getting safe PV systems, there are usually some “friendly” discussions on the whys and hows of disconnects needed to achieve those [...]
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Several of the rules in the Canadian Electrical Code are quite complicated, and it requires our close attention to get them right. This article discusses two of those rules, 28-604 for motor disconnects and 4-004 for underground conductor ampacities. One of the trickiest CE Code rules to follow and interpret correctly is Rule 28-604 Location [...]
(No Ratings Yet)For several years I have heard horror stories associated with the accidental activation of the disconnecting means required by Sections 645-2(a), 645-10, and 645-11. Roger Witt, representing State Farm Insurance Company, submitted several Code change proposals to delete the requirement in the 2002 NEC. Mr. Witt’s substantiation is as follows: The disconnecting means requirement presents [...]
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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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