ELECTRICAL WIRING:RESIDENT.-TEXT (PB)
ELECTRICAL WIRING:RESIDENT.-TEXT (PB)
19th Edition
ISBN: 9781337116213
Author: MULLIN
Publisher: CENGAGE L
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Chapter 32, Problem 8R

When a transfer switch transfers to standby power, the electrical connection inside the switch: (Circle the correct answer.)

  1. a. maintains connection to the normal power supply as it makes connection to the standby power supply.
  2. b. breaks the connection to the normal power supply before it makes connection to the standby power supply.
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