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National Electrical Code

Q&A

Your most pressing NEC questions answered

Recent

Code Q&A: NEC Requirements for Using and Installing Wireways — Part 2

Nov. 22, 2023

Fig. 1. PVC conduit is permitted to be installed within concealed locations such as walls, floors, or ceilings.

Stumped by the Code? NEC Requirements for Installing PVC

Nov. 9, 2023

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Code Q&A: NEC Requirements for Using and Installing Wireways — Part 1

Nov. 9, 2023

pvc securely fastened

Code Q&A: NEC Requirements for Securing and Supporting PVC

Oct. 26, 2023

Q&A in letterpress type

Code Q&A: NEC Requirements for RMC Installed in Contact With Dissimilar Metals

Oct. 12, 2023

fmc securely fastened

Stumped by the Code? NEC Requirements for Installing, Securing, and Supporting FMC

Oct. 11, 2023

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Code Q&A: NEC Requirements for RMC

Sept. 28, 2023

Highlights

cable tray bushed conduit and tubing

Code Q&A: NEC Requirements for Cables and Conductors Transitioning From a Cable Tray to a Raceway

Sept. 14, 2023

Test your knowledge of the NEC.

metal wireways conductors connected in parallel

Code Q&A: NEC Requirements for Installing Conductors in Parallel Inside Wireways

Aug. 24, 2023

Test your knowledge of the NEC.

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Code Q&A: NEC Requirements for Using and Installing EMT

Aug. 10, 2023

Test your knowledge of the NEC.

Fig. 1. Examples of EMT uses not permitted by the NEC.

Stumped by the Code? NEC Requirements for Using and Installing EMT

Aug. 9, 2023

Answering your NEC questions

question answer on old typewriter

Code Q&A: NEC Requirements for Installing MC Cable Attics or Roof Spaces

July 27, 2023

Test your knowledge of the NEC.

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emt couplings and connectors

Code Q&A: NEC Requirements for Installing EMT Couplings and Connectors

July 13, 2023

TC cable uses permitted

Stumped by the Code? NEC Requirements for Installing TC Cable

July 12, 2023

cable trays cable splices

Code Q&A: NEC Requirements for Splicing Cables and Conductors Installed in Cable Trays

June 22, 2023

mc cable uses permitted

Stumped by the Code? NEC Requirements for MC Cable

June 14, 2023

fmc uses not permitted

Code Q&A: NEC Requirements for FMC

June 8, 2023

Test your knowledge of the NEC.

question answer

Code Q&A: NEC Requirements for EMT Bends

May 25, 2023

Test your knowledge of the NEC.

question answer blocks on question mark cards

Code Q&A: NEC Requirements for Installing MC Cable for Exposed Work

May 11, 2023

Test your knowledge of the NEC.

Fig. 1. The NEC requirements for flush-mounted box installations can be found in Sec. 314.20.

Stumped by the Code? NEC Requirements for Flush-Mounted Boxes

May 9, 2023

Answering your NEC questions