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
C. listed termination device
D. electrical tape
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."
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