Mich. Admin. Code R. 408.41730 - Circuit protection
Rule 1730.
(1)
Circuit protection shall be provided by fuses or circuit breakers for each
feeder and branch circuit and shall be based on the current carrying capacity
of the conductors and power load.
(2) A fuse puller shall be used to install or
remove a cartridge fuse when 1 or more terminals are energized.
(3) A circuit protection device shall not be
placed in a grounded circuit except where the device simultaneously opens both
the ground and energized circuit.
(4) Circuit protection in existing
installations shall not be changed to increase the load in excess of the load
rating of the conductor or equipment.
Notes
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