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(D) Back-Fed Devices
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Plug-in-type overcurrent protection devices or plug-in type main lug assemblies that are backfed and used to terminate field-installed ungrounded supply conductors shall be secured in place by an additional fastener that requires other than a pull to release the device from the mounting means on the panel.
Related Code Sections
(D) Equipment for General Use, Back-Fed Devices
Plug-in-type overcurrent protection devices or plug-in type main lug assemblies that are backfed and used to terminate field-installed ungrounded ...
National Electrical Code 2020 of Minnesota > 4 Equipment for General Use > 408 Switchboards, Switchgear, and Panelboards > 408.36 Overcurrent Protection > (D) Back-Fed Devices
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National Electrical Code 2020 of Minnesota > 7 Special Conditions > 710 Stand-Alone Systems > 710.15 General > (F) Back-Fed Circuit Breakers
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adjacent to the back-fed breaker from the power source that displays the following or equivalent wording:
WARNING: POWER SOURCE OUTPUT CONNECTION - DO NOT ...
National Electrical Code 2020 of Minnesota > 7 Special Conditions > 705 Interconnected Electric Power Production Sources > 705.12 Load-Side Source Connections > (B) Bus or Conductor Ampere Rating > (3) Busbars
625.46 Special Equipment, Loss of Primary Source
Means shall be provided such that, upon loss of voltage from the utility or other electrical system(s), energy cannot be back fed through ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 625 Electric Vehicle Power Transfer System > 625.46 Loss of Primary Source