Question 3031 of 731 · Texas Journeyman Electrician Exam
When is a 1200 A feeder disconnect on a 480Y/277 volt system not required to have its own GFPE?
Exactly one answer is correct.
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Correct answer to question 3031
- D: When GFPE is provided on the supply side of the feeder
Explanation
An exception to 215.10 removes the requirement where ground-fault protection is already provided on the supply side of the feeder and on the load side of any transformer supplying it. A continuous industrial process where a nonorderly shutdown adds hazards is also exempt.
More questions: Feeders and Overcurrent Protection
- 3032What is the length limit for outside feeder tap conductors that terminate at a single OCPD that is part of or next to the building disconnect?
- 3033Under the 10 ft feeder tap rule, field-installed tap conductors that leave the enclosure must have an ampacity of at least what fraction of the feeder OCPD rating?
- 3035A feeder supplies a continuous load of 160 A only. What is the minimum rating of the feeder OCPD, assuming standard equipment not rated for 100 percent operation?
- 3036In a multi-tenant building, who must have ready access to the OCPDs protecting the conductors supplying a tenant space?
- 3037Arc energy reduction is required where the highest continuous current trip setting of a circuit breaker is at least what value?
- 3039May an OCPD be placed in a grounded conductor?