The branch-circuit conductors supplying fixed electric space-heating equipment and any associated motors shall be sized not smaller than <code>________</code> of the load.
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✓ Correct answer: A. 125%Fixed electric space-heating equipment is covered in Article 424. <br/><br/>Section 424.4(B) specifically requires branch-circuit conductors for fixed electric space-heating equipment and any associated motors to be sized not smaller than 125% of the load. <br/><br/>This mandate is necessary to protect conductors and overcurrent devices, particularly those in panelboards and load centers, from overheating during periods of prolonged operation.
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