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1926.964(c)(12) Boom-Current Test
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The employer shall ensure that employees perform a boom-current test before starting work each day, each time during the day when they encounter a higher voltage, and when changed conditions indicate a need for an additional test.
This test shall consist of placing the bucket in contact with an energized source equal to the voltage to be encountered for a minimum of 3 minutes.
The employer shall immediately suspend work from the aerial lift when there is any indication of a malfunction in the equipment.
The leakage current may not exceed 1 microampere per kilovolt of nominal phase-to-ground voltage.
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