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This Practice describes the requirements for metal-enclosed power switchgear assemblies employed in three-phase AC electrical systems having a voltage not greater than 1000 volts and located in a nonclassified area.
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This Practice provides requirements for design, fabrication, and testing of metal-enclosed, low-voltage AC power circuit breaker switchgear assemblies. This Practice describes the requirements for metal-enclosed power switchgear assemblies employed in three-phase AC electrical systems having a voltage not greater than 1000 volts and located in a nonclassified area.
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This Practice provides requirements for design, fabrication, and testing of metal-enclosed, low-voltage AC power circuit breaker switchgear assemblies. This Practice describes the requirements for metal-enclosed power switchgear assemblies employed in three-phase AC electrical systems having a voltage not higher than 1000 volts and located in a nonclassified area.
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