Read the passage below:
During routine facility maintenance, technicians utilize infrared thermography cameras to inspect electrical distribution switchgear under full operating load. High electrical resistance across loose lugs, corroded busbars, or failing contactors generates localized heat before any physical failure or circuit breaker trip occurs. By detecting these abnormal thermal signatures early, maintenance teams can service degraded electrical connections prior to equipment breakdown or catastrophic electrical fire.
According to the passage, how do technicians identify deteriorating electrical connections before system failures happen?
- ABy observing circuit breaker trips that happen during normal operating loads
- By spotting elevated temperature patterns produced by increased electrical resistanceCevap
- CBy repairing loose lugs and corroded busbars only after an electrical fire occurs
- DBy listening for high-frequency acoustic vibrations inside switchgear panels
Cevap
Technicians identify deteriorating connections by spotting elevated temperature patterns produced by increased electrical resistance.
The correct answer accurately restates the passage's factual claim that high electrical resistance causes localized heat, which is detected via infrared thermal imaging to service damaged components ahead of failure.
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Anahtar Kavram
Paraphrased Fact Recognition
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