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110.18 Arcing Parts
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110.18 General, Arcing Parts
Parts of electrical equipment that in ordinary operation produce arcs, sparks, flames, or molten metal shall be enclosed or separated and isolated ...
National Electrical Code 2020 of Minnesota > 1 General > 110 Requirements for Electrical Installations > 110.18 Arcing Parts
240.41 Wiring and Protection, Arcing or Suddenly Moving Parts
Arcing or suddenly moving parts shall comply with 240.41(A) and (B ...
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530.17 Special Occupancies, Portable Arc Lamps
with the arc or bare live parts. The enclosures shall be ventilated. All switches shall be of the externally operable type ...
National Electrical Code 2020 of Minnesota > 5 Special Occupancies > 530 Motion Picture and Television Studios and Similar Locations > 530.17 Portable Arc Lamps
630.13 Special Equipment, Disconnecting Means
A disconnecting means shall be provided in the supply circuit for each arc welder that is not equipped with a disconnect mounted as an integral part ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 630 Electric Welders > 630.13 Disconnecting Means
(B) Special Occupancies, Service Overcurrent Protective Devices
-to-phase shall be current limiting. Informational Note: The phrase "evidence of impending failure" means that there is evidence such as arcing ...
National Electrical Code 2020 of Minnesota > 5 Special Occupancies > 590 Temporary Installations > 590.8 Overcurrent Protective Devices > (B) Service Overcurrent Protective Devices