// CODE SNIPPET
(2) Separately Derived Power Systems
Related Code Sections
(2) Special Equipment, Separately Derived Power Systems
Separately derived systems shall comply with the applicable articles of this Code , except as modified by this article. Separately derived systems ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 640 Audio Signal Processing, Amplification, and Reproduction Equipment > 640.9 Wiring Methods > (A) Wiring to and Between Audio Equipment > (2) Separately Derived Power Systems
645.14 Special Equipment, System Grounding
Separately derived power systems shall be installed in accordance with Parts I and II of Article 250. Power systems derived within listed information ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 645 Information Technology Equipment > 645.14 System Grounding
647.5 Special Equipment, Three-Phase Systems
Where 3-phase power is supplied, a separately derived 6-phase "wye" system with 60 volts to ground installed under this article shall be configured ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 647 Sensitive Electronic Equipment > 647.5 Three-Phase Systems
250.169 Wiring and Protection, Ungrounded Direct-Current Separately Derived Systems
Except as otherwise permitted in 250.34 for portable and vehicle-mounted generators, an ungrounded dc separately derived system supplied from a stand ...
National Electrical Code 2020 of Minnesota > 2 Wiring and Protection > 250 Grounding and Bonding > 250.169 Ungrounded Direct-Current Separately Derived Systems
(C) Special Conditions, Grounding
All sources of power shall be grounded as a separately derived source in accordance with 250.30. Exception: Where the equipment containing the main ...
National Electrical Code 2020 of Minnesota > 7 Special Conditions > 708 Critical Operations Power Systems (COPS) > 708.20 Sources of Power > (C) Grounding