Since 1997, the National Electrical Contractors Association (NECA) has been publishing a series of National Electrical Installation Standards™.
Using NFPA 79 as a model, other NFPA electrical documents can be integrated more fully for end users of the NFPA 70 series of electrical codes and standards.
Manufactured housing has its own set of construction standards that are found in 24 CFR Part 3280. This came into being in response to the National Manufactured Construction and Safety Standards Act of 1974 (42 U.S.C. 5403).
GFCIs appear similar to standard electrical receptacles, but also have "test” and "reset” buttons.
Qualified electrical inspectors can fulfill a much needed role on the local level in promoting electrical safety.
Some vehicle inspection diagnostic equipment used in garages and filling stations has not been marked for hazardous locations. Does UL List equipment for use in hazardous locations? Where can I find UL Guide and Listing Information?
Rule 8-104 of the Canadian Electrical Code prescribes maximum permissible operating loads for electrical equipment, and maximum loads that may be carried by service, feeder and branch circuit wiring.
This article will focus on some of the National Electrical Code requirements and common problems being experienced in the field today for high-voltage installations.
Over the past five years, I have worked on 26 interpretations and gained tremendous insight in understanding the NESC. Studying the interpretations is very important in understanding the NESC.
When approached to investigate flood-damaged electrical equipment to determine if equipment continues to meet safety requirements, UL investigates equipment on a case-by-case basis.