In Canada, CSA is one of four nationally accredited Standard Development Organizations (SDO) and publishes Canada’s electrical code and electrical product standards. The Canadian Electrical Code (CE Code) is the governing electrical code for the majority of Canada, and consists of two parts. The CE Code, Part I establishes requirements for electrical work and the [...]
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Arc-fault circuit interrupters (AFCIs) have just become required for installation in residences under the 2002 National Electrical Code (NEC). Not surprisingly, questions have been raised regarding their application and even the need for them. There have been marketing pitches, technical opinions and, quite frankly, intentional misinformation floating around various industry channels. The intent of this [...]
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The purpose of electrical codes is practical safe guarding of persons and property from the hazards associated with electricity. Numerous prescriptive requirements address safety from the minimum standpoint. Codes and standards are the minimum rules for electrical safety, so one can easily surmise that for electrical safety one must do at least what is required [...]
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It has long been recognized that harmonic currents, particularly the 3rd harmonic, flowing in a wye distribution system serving multiple computer loads, are detrimental to system operation. Problems caused by these harmonic currents include overheated transformers, switchgear and wiring; random circuit breaker tripping; and reduced useable system capacity. Conventional methods used to mitigate the harmful [...]
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Interpretation of Soil Measurements After completing the soil resistance measurements at the proposed substation site, the next step is the development of a mathematical equivalent soil model that is a good approximation of the actual soil resistance data. The most common models are the uniform soil model and the two-layer soil model. The uniform soil [...]
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A recent Harris poll indicated the Green Bay Packers are “America’s Football Team.” If you’re a sports fan and you hear “Green Bay Packers,” you automatically think of their home, Lambeau Field, and their legendary coach, Vince Lombardi. The Packers have been playing at the same location since September 24, 1957. On that day, the [...]
(No Ratings Yet)What is the IAEI all about? To me the IAEI’s primary concern is safety! It insists on electrical safety wherever electricity is used. It insists on electrical safety for installers, industry workers, owners, and for future generations. To ensure greater electrical safety we support standards by sponsoring representatives on code-making bodies and standard developing committees. [...]
(No Ratings Yet)Question: Listed RHH wire Is Type RHH wire in EMT, with a two-hour fire rating Listed as circuit integrity cable? Is this acceptable because it is Listed RHH wire?
(No Ratings Yet)Question: Assigned ampacity for wires and cables Does UL allow an assigned ampacity for wires and cables that is greater than that assigned by the NEC when the wires are part of a UL Listed product?
(No Ratings Yet)Question: Luminaires What are the differences and applications of Type IC, inherently protected, and Type Non-IC luminaires?
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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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