Question 8067 of 731 · Texas Journeyman Electrician Exam
What must be done regarding the ventilation of a transformer?
Exactly one answer is correct.
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Correct answer to question 8067
- D: Openings may not be blocked, and marked clearances must be kept
Explanation
Section 450.9 requires the heat losses of a transformer to be removed without excessive temperature rise. Ventilating openings must not be obstructed, and the clearances marked on the transformer must be maintained.
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