Columns

I was told that I could not plug one extension cord into another on a construction site. The NEC does not seem to prohibit this practice. Where do I find such information?

IAEI and the NEC Code-Making Panels

IAEI continues to play an important role in the NFPA consensus code-making process by supporting inspector members on the code-making panels of NFPA 70 – National Electrical Code.

Disconnect, Disconnect, Where For Art Thou?

Allowable Ampacities – Conductors in Cable Trays

Are all split bolt clamps Listed to be used for connecting copper grounding electrode conductors to steel rebar direct buried in earth, and if so how can these clamps be identified?

Signs

Does UL List the spiralshaped compact fluorescent lamps (e.g. light bulbs)?

The Development of Codes, Standards, and PV Equipment. How are they related?

Rule 10-700 Grounding Electrodes

Compliance with Safe Installations by Using Deviations from the CE Code Requirements