Periodic testing using a special sensing device may be performed to detect potentially dangerous loose or corroded bus bar and controller connections. What is the name of this testing technology?
• Non-contact temperature measurement methods used on electrical equipment • How heat buildup can indicate loose or corroded electrical connections • Typical maintenance tools used for preventive testing of switchboards and bus bars
• Which of these choices refers to a technology that can "see" temperature differences on electrical components from a distance? • If a connection is loose or corroded, what physical effect happens at that point, and which option is designed to detect that effect? • Which terms in the options sound like established, real-world diagnostic tools used by marine electricians and surveyors?
• Identify which option clearly relates to temperature/heat imaging rather than sound, vibration, or chemistry. • Eliminate any answer choices that sound made-up or are not commonly found in marine electrical maintenance manuals. • Ask yourself: which method is actually used with a handheld camera-like device to scan bus bars and controllers for hot spots?
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