Lighting Panels

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4 Terms

1
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Describe the different voltages that you would encounter in these panels.

480/277 VAC depending on 480V transformer secondary feeding the panel

2
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Locate a lighting panel at your site and point-out-and-identify the following components.

Main disconnect- generally at top or bottom of panel (larger than other breakers)

3
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Describe/Demonstrate which components remain energized in a panel after a breaker has been de-energized

all adjacent breakers, incoming cables (main feed), Bus Bar, All wiring not connected to the de-energized breaker

4
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Describe different levels of PPE required to work on energized Panels

Class 0-4, refer to Lima P&G Electrical Safe Practices document