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I am a Canadian electrical inspector and want to know what is the UL White Book and is there a UL White Book for Canada?

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?

Disconnect, Disconnect, Where For Art Thou?

Allowable Ampacities – Conductors in Cable Trays

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

Signs

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?

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

Why Are You a Member of IAEI?

Rule 10-700 Grounding Electrodes