What do the devices labeled "L" in Panel 2 of the illustrated switchboard represent? Illustration EL-0003

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Accepted Answer

synchronizing lights used as a backup to the syncroscope for paralleling purposes

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power available lights indicating that the generator is producing a voltage

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emergency lighting for the switchboard to enable the meters to be read in case of power failure

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load lights indicating that the generator breaker is closed and the generator is supplying power to the main bus

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