Codes & Standards

Jim Dollard has an extensive background in codes and standards. Send questions about the National Electrical Code (NEC) to Jim at codefaqs@gmail.com. Answers are based on the 2020 NEC. RVs...

The Great Chicago Fire started on Oct. 8, 1871. One of the most significant fires of its time, it left around 300 dead and 100,000 people homeless. The fire occurred...

A chief electrical inspector friend wanted to know about the construction of an oxygen-generating facility in the Raleigh/Durham, N.C. area. His question was whether the construction should be based on...

In the construction industry, one of the important objectives, aside from completing the project within set timelines, is attaining code compliance and final approval(s). In the electrical field, there are...

NEC Chapter 5 provides requirements for special occupancies and specific rules for electrical equipment installed and operated in hazardous (classified) locations, such as fuel dispensing facilities, chemical plants and bulk...