Space Separation Between Resistors and Reactors

For installations of resistors and reactors, a thermal barrier shall be required if the space between them and any combustible material is less than _____ .

a) 2 in.
b) 3 in.
c) 6 in.
d) 12 in.

See answer and applicable Code reference

The correct answer is: d) 12 in.

Article 470 covers the installation of separate resistors and reactors on electrical circuits. As noted in Sec. 470.3, "A thermal barrier shall be required if the space between the resistors and reactors and any combustible material is less than 12 in."

Hide comments

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.
Publish