// CODE SNIPPET
620.52 Power From More Than One Source
JUMP TO FULL CODE CHAPTER
Where multiple disconnecting means are used and parts of the controllers remain energized from a source other than the one disconnected, a warning sign shall be mounted on or next to the disconnecting means. The sign shall be clearly legible and shall read as follows:
The warning sign(s) or label(s) shall comply with 110.21(B).
Related Code Sections
620.52 Special Equipment, Power From More Than One Source
On single-car and multicar installations, equipment receiving electrical power from more than one source shall be provided with a disconnecting means ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 620 Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chairlifts > 620.52 Power From More Than One Source
430.113 Equipment for General Use, Energy From More Than One Source
a motor receives electric energy from more than one source, the disconnecting means for the main power supply to the motor shall not be required ...
National Electrical Code 2020 of Minnesota > 4 Equipment for General Use > 430 Motors, Motor Circuits, and Controllers > 430.113 Energy From More Than One Source
(2) Special Occupancies, Feeders
a dual source of normal power consists of two or more electrical services fed from separate generator sets or a utility distribution network that has ...
National Electrical Code 2020 of Minnesota > 5 Special Occupancies > 517 Health Care Facilities > 517.30 Sources of Power > (C) Location of Essential Electrical System Components > (2) Feeders
(1) Special Equipment, Feeder Sources
Two or more feeders shall be permitted as more than one power source if such feeders are connected to, or derived from, separate utility services ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 695 Fire Pumps > 695.3 Power Source(s) for Electric Motor-Driven Fire Pumps > (C) Multibuilding Campus-Style Complexes > (1) Feeder Sources
(A) Special Conditions, Circuit and Equipment
Power source output circuit conductors and equipment shall be provided with overcurrent protection. Circuits connected to more than one electrical ...
National Electrical Code 2020 of Minnesota > 7 Special Conditions > 705 Interconnected Electric Power Production Sources > 705.30 Overcurrent Protection > (A) Circuit and Equipment