The Hazards of Electricity The electrical inspector and electrician are no different from any other craftsman. As they accumulate more experience and expertise in their field they begin to achieve a level of comfort with the tasks they perform on a regular and routine basis. Unfortunately, as the comfort level increases, the potential for complacency [...]
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Definition Grounding electrode. A conducting element used to connect electrical systems and/or equipment to the earth. [See figure 1] General For many applications, grounding electrodes provide the essential function of connecting the electrical system to the earth. The earth is considered to be at zero potential. In some cases, the grounding electrode serves to ground [...]
(No Ratings Yet)A National Standard of Canada, CAN/CSA-B72-M87 Installation Code for Lightning Protection Systems provides guidance on lightning protection. The following information may be found in the standard. Lightning Lightning results from the build-up of an electrical charge on a cloud. When this charge has built up to a sufficient level, a lightning stroke to earth may [...]
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Overcurrent protection for motors and motor circuits is a little different than the rules for conductors as specified in Article 240, because motor loads have different characteristics than general lighting and other loads. Motor circuits draw a large amount of current at initial start-up, usually around six times the normal full-load current (FLA) of the [...]
(No Ratings Yet)Question: Installation instructions Does UL review installation instructions that are provided with UL certified products? Are they evaluated to make sure they comply with model codes? What codes are they evaluated for compliance with?
(No Ratings Yet)Inspectors play a key role in the implementation of the North American Safety System and the job is not easy. In addition to being the enforcer of the electrical installation code, the inspector must also determine if electrical products are acceptable for use. To do this, the inspector typically relies on some method of conformity [...]
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Assuming electrical circuits or equipment is dead or de energized can be a costly mistake. Phrases such as “I thought it was dead” have been used following an incident where an electrical shock or electrocution occurred. It pays to check it out. Every electrician who has worked for any length of time in the trade [...]
(No Ratings Yet)The Miami-Dade County [Florida] Building Code and Product Review Committee became the first governmental entity in the country to accept NECA’s National Electrical Installation Standards™ for regulatory use, in November 1999. The Committee adopted the first three published NEIS™ into the South Florida Building Code as official references for methods of construction. NECA’s South Florida [...]
(No Ratings Yet)May is the month designated to promote electrical safety. It is appropriate to set aside a time to emphasize this important issue. Too many accidents happen because individuals either fail to understand the hazards involving the misuse or abuse of electricity or they choose to ignore safety guidelines. One would think that members of the [...]
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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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