Question 2015 of 850 · Texas Journeyman Electrician Exam
Under the 2023 and 2026 NEC, when is surge protection required for an existing dwelling service?
Exactly one answer is correct.
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Correct answer to question 2015
- B: When the service equipment is replaced
Explanation
Starting with 2023, 230.67 applies when service equipment is replaced, not only to new services. A meter change by the utility does not trigger it. See 230.67.
More questions: Services and Service Equipment
- 2016Where must a service head generally be located in relation to the point of attachment of the service drop?
- 2017What is the minimum width of the working space in front of service equipment?
- 2018Which of the following may not be used to support overhead conductor spans?
- 2019Which types of surge protective device satisfy the dwelling unit service surge protection rule?
- 2020Service-entrance cable run on the outside of a building must be supported within 12 in. of the service head and at intervals not exceeding what distance?
- 2021A commercial service supplies 120 A of continuous load and 40 A of noncontinuous load. What is the minimum ampacity of the service-entrance conductors?