In what year was the requirement for a 4-wire, 240 volt circuit established?

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Multiple Choice

In what year was the requirement for a 4-wire, 240 volt circuit established?

The establishment of the requirement for a 4-wire, 240-volt circuit was set in the National Electrical Code (NEC) revisions, specifically in 1996. This code amendment was implemented to ensure safety in residential electrical installations. The 4-wire system includes two hot wires, one neutral wire, and one ground wire, which enhances the safety and functionality of electrical systems. The incorporation of a neutral wire in the 4-wire circuit allows for the connection of both 120-volt and 240-volt appliances, providing flexibility and reducing the risks of electrical faults. Prior revisions did not require this configuration, which is why the changes made in 1996 were significant in promoting safer electrical practices in homes.

In what year was the requirement for a 4-wire, 240 volt circuit established?

Prepare for your Residential Electrical Inspections Test. Study with detailed questions and explanations, reinforcing your knowledge for success in electrical inspections!

In what year was the requirement for a 4-wire, 240 volt circuit established?

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