Code Quiz: Circuit Connections for Fixed Electric Heating Systems

NEC requirements for circuit connections on fixed electric heating systems


Fill in the blank with the appropriate answer.

When installing resistance heating elements, and making electrical splices and terminations outside the thermal insulation, the splices and terminations shall be installed in a ______, in accordance with Sections 110.14 and 300.15.


A. box or fitting

B. box

C. listed termination device

D. electrical tape

Answer: A

Article 427 of the 2011 NEC focuses on fixed electrical heating equipment for pipelines and vessels. As noted in 427.19(B), "Splices and terminations outside the thermal insulation shall be installed in a box or fitting in accordance with 110.14 and 300.15."

Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.