Columns

If underground service entrance cable Type USE conductor insulation is not marked as an RHW conductor, can USE cable be used inside for premise wiring?

Has UL listed any CSST? Does UL list connectors to bond CSST?

Continuous Currents through Curious Cables

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.

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

Signs

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