When a building or structure is supplied with electrical power, the equipment and conductors at the point of delivery to the premises are defined by the National Electrical Code as the service. This definition reads: “Service. The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises [...]
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During a visit to a new building site to inspect electrical equipment installations, an electrical inspector has the responsibility of advising the building manager that certain equipment may not comply with local codes. As a result, the building occupancy may be delayed until the matter is resolved. The electrical inspector’s job can be made easier [...]
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The attack on the World Trade Center (WTC) in New York City has raised concerns among Americans regarding the fire safety of high-rise structures. Until September 11, 2001, few people envisioned the total collapse of a high-rise building except under controlled conditions such as an implosion for demolition purposes. Today, the public’s concerns are heightened.
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There have been numerous inquiries to my office about the requirement of increased clearances for combustible sleeving and electrode boots from conductive and combustible materials, (which equates to everything) when used with high voltage GTO cables and terminations. The growing necessity to increase the clearance requirements has brought changes to Section 34 (high voltage sign [...]
(No Ratings Yet)The IAEI is fortunate to have many supporters who willingly give of themselves to help the organization do its work better. With ever increasing cost to operate and to provide services to both members and customers, it is difficult to find the resources to do everything that should be done.
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There have been many changes in the world of neon installations during the beginning of this millennium. These changes involve the requirements in 600.32 of the National Electrical Code. This section was created with the hopes of mechanically preventing many electrical fires that had been appearing for years. The issues and problems that have ensued [...]
(No Ratings Yet)In the article titled, “Overhead Line Design From Scratch — Part 1″ in the March/April 1998 issue of IAEI News, I discussed aerial conductor choice based upon steady-state ampacity, maximum operating temperature, and the sag/tension characteristics of the conductor at the maximum operating temperature. During the operation of the line, if we allow the conductor [...]
(No Ratings Yet)In 1992, CANENA (a Spanish acronym for Council for Harmonization of Electrotechnical Standards of the Nations of Americas) was created as a forum to harmonize standards and promote the reduction of non-tariff trade barriers for electrotechnical products between Canada, Mexico, and the United States of America. Committed to developing draft-harmonized standards for the Nations of [...]
(No Ratings Yet)Question: Meter socket Is a meter socket with a marked rating of 160A/ 200A max intended to be installed on a 160 A or 200 A circuit?
(No Ratings Yet)Question: Low-voltage lighting system NEC 411-3 requires lighting systems operating at 30 volts or less to be Listed for this purpose. Does UL List low voltage lighting systems for installation in accordance with Article 411?
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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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