Exam (elaborations)
114.1 QUESTIONS WITH CORRECT ANSWERS 2024
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Exam of 1 pages for the course Enphase at Enphase (114.1)
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114.1An integral thermal protector for recess luminaires will automatically restore power once
Iluminar has cooled
T/F - answerT
A class P ballast has ___ thermal protection to prevent ballast overheating that can
cause fires - answerBuilt in
Fluorescent lamps will have a longer life (in hours) if ___.
I. They are clean frequently.
II. They are frequently switched off.
III. They are left on for long periods of time. - answerIII only
A class P ballast has thermal protection to prevent ballast overheating, the most open,
when the ballast case temperature reaches ___° - answer110°C
Where a recess luminaire contains a thermal device to protect against overheating, This
device will ___.
I. Automatically disconnect power to the luminaire when the temperature gets too high.
II. Have to be manually reset when the temperature gets too low.
III. Automatically restore power to the luminaire when the temperature cools. - answerI
& III only
When a ballast case, temperature reaches 110°C the thermal protection for a class P
Balis must be open within ___.
I. One hour
II. Immediately.
III. 10 MINUTES.
IV. TWO HOURS. - answer2 hours
Where installed an illuminae which of these fluorescent lamps should be replaced
a. A lamp that is blackened on both ends.
b. A flickering lamp.
c. A lamp that is blackened on one end.
d. Replace only the lamp not burning. (although one of the two lamps in the two lamp
luminaire is ON)
e. All of these. - answerAll of these
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