Question 9051 of 850 · Texas Journeyman Electrician Exam
At a marina, receptacles that provide shore power to boats must have individual ground-fault protection not exceeding what level?
Exactly one answer is correct.
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Correct answer to question 9051
- A: 30 mA
Explanation
Shore power receptacles at marinas and boatyards require ground-fault protection not exceeding 30 mA. Leakage current into the water can cause electric shock drowning, so tighter protection is applied at each boat connection.
More questions: Special Occupancies
- 9052At a marina, feeder and branch-circuit conductors installed on docks must have ground-fault protection set to open at not more than what level?
- 9053At a marina, 125-volt, single-phase, 15- and 20-ampere receptacles that do not provide shore power require what protection?
- 9055On a floating pier, electrical connections must be located at least how far above the deck?
- 9056At a marina, the disconnecting means for a shore power connection must be located within what distance of the receptacle it controls?
- 9057On a construction site, a 125-volt, single-phase, 20-ampere receptacle on a temporary power pole used by workers requires what protection?
- 9058Temporary electrical power for holiday decorative lighting is limited to a maximum period of how many days?