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November/December 2000

Fairs, Festivals, & Similar Events Covered by NEC Article 525 and other Associated Articles

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

The county fair is an event that children and adults look forward to. Often children in rural areas prepare projects, for 4-H all year long, and the county fair is the place where they get to show off their projects. Fair goers seldom realize that the fair may be a dangerous place they could go [...]

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A Review of the Assured Equipment Grounding Conductor Program

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Whether one is involved in designing, installing, or maintaining an electrical system, protection must be of primary concern. This includes not only safeguarding equipment and facilities from damage or improper operation, but it also includes the safety of personnel who may be exposed to the hazards inherent with any electrical installation.

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Ground-Fault Protection Requirements for Temporary Wiring on Construction Sites

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Insulation and grounding are two recognized means for preventing injury during electrical equipment operation. Conductor insulation may be provided by placing nonconductive material, such as insulation, around the conductor. Grounding may be achieved through the use of a direct connection to an available, effectively grounded electrode, such as a metal water pipe, structural steel, a [...]

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GFCI for Temporary Wiring

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Since the original introduction of the Ground-Fault Circuit Interrupters in the 1971 National Electrical Code, these devices have proven to their users and the electrical community that they are worth the added cost during construction or remodeling. Published data shows a decreasing trend in the number of electrocutions in the United States since the introduction [...]

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UL Requires American Standard-Sized Mounting Hardware


Question: Luminaires Some luminaires imported to the United States are provided with metric hardware for mounting the fixtures. However, UL Listing requirements specify that fixtures be  provided with American standard-sized mounting hardware. Is UL enforcing these requirements?

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How Important Are Connections?

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Everyone understands the importance of good connections in business and in life generally. Good electrical connections are important too. The Canadian Electrical Code provides some important information and contains many rules on connecting electrical equipment. In this article we will cover a few of the many connection principles contained in the code.

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Ask CSA: Improperly Installed Heaters Can Pose a Fire Hazard

[ 0 ] By  |  November 16, 2000  |  

Question. Recently, a major manufacturer initiated a voluntary recall of in-wall, or baseboard, electric heaters. The media reported that “under certain conditions these heaters could fail, causing the units to overheat, catch fire, and spew flames and molten particles. The heaters may also become energized, creating a potential electrical shock hazard.” Has CSA International ever [...]

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NFPA 79 – Electrical Standard for Industrial Equipment

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Should our electrical standard for industrial machinery keep current with what the rest of the world is doing? If you build machines for the global marketplace, you’d answer “do it or die.” A harmonized NFPA 79 paves the way for you to build a machine that your company can sell from Boston to Bombay. If [...]

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Figure 1. Figure 230.5 from the NEC Handbook, slightly modified and shown in Figure 1, provides a good example of drip loops.

Sunlight Resistant Requirement and Choices for Enforcement

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Abstract The requirement for sunlight resistance for conductors that are exposed to direct sunlight was added in Section 310-8 of the 1999 National Electrical Code (NEC).1 However, the implementation of this requirement has resulted in some confusion for the users of the Code. For the purpose of listing and or markings on the products, Code [...]

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Basic Standards Development Process

[ 0 ] By  |  November 16, 2000  |  IAEI November-December 2000

Introduction The first part of this series of articles provided a general understanding of the IEC and how it operates. Often more confusing though, to a new participant in the IEC, is the overall standards making process. This article will provide information on how to process an idea from its initial conception as a proposal, [...]

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