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Initial Troubleshooting and Amperage Measurement

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MASTER ELECTRICIAN DAD TEACHES SON HOW TO TROUBLESHOOT A 480 VOLT PANEL!

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What happens here

Two technicians approach a large 480-volt electrical panel. They hear a "buzz" sound coming from one of the circuit breakers. One technician uses a clamp meter to measure the current on an adjacent circuit breaker, noting a reading of 56 amps on a 100-amp circuit. He mentions that it was "buzzing" again, indicating an ongoing issue.

Goal: Identify the location of the "buzzing" and measure the current on a related circuit.

Tools and materials

  • 480-Volt Electrical Panel — The main subject of troubleshooting and repair, Clamp Meter Unknown

What they say

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Here it go. >> Yep. >> 256 amps on the 100 amp circuit breaker. >> Yep. >> How's that possible? >> Let's go. Let's start with this one. But always put a hand on the panel. Never let go of it. >> Let go. >> Never let go. And you have to always keep pressure on it cuz you don't know if these screws are any good or not. Just keep your hand on it. >> Yep. Keep your hand on it. Do the left side first and the right side or the

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