Question 3023 of 731 · Texas Journeyman Electrician Exam
What is the role of a supplementary overcurrent protective device?
Exactly one answer is correct.
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Correct answer to question 3023
- A: It gives limited extra protection to specific equipment and cannot replace branch circuit protection
Explanation
Supplementary devices provide limited protection for specific applications and utilization equipment, in addition to the branch circuit OCPD. They may not be used as a substitute for the required branch circuit OCPD. See 240.10.
More questions: Feeders and Overcurrent Protection
- 3024Unless specifically permitted elsewhere, what is the maximum OCPD for 12 AWG copper conductors?
- 3025A feeder conductor has an ampacity of 115 A and does not supply receptacles for portable loads. What is the largest standard OCPD permitted under the next size up rule?
- 3026GFPE is required for a feeder disconnect rated 1000 A or more on which system?
- 3027Unless specifically permitted elsewhere, what is the maximum OCPD for 14 AWG copper conductors?
- 3028Three parallel sets of conductors give a total ampacity of 1140 A. What is the largest standard OCPD permitted?
- 3029Which standard OCPD rating comes directly after 800 A?