A three-wire installation provides a power source for a ________ service. A. 1,000 V B. 4,160 V C. 50 V D. 120/240 V

Three-phase electric power is a common method of alternating current electric power generation, transmission, and distribution. A three- wire installation is the isntallation that transport this current.

A three-wire installation provides a power source for a 120/240 V service.

Correct answer:D

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saadhussain514 saadhussain514 · Answer 2 · 2018-10-28T16:35:42+01:00

Answer:

The correct option is 120/240 V

Explanation:

A three wire installation can provide a power source for an independent 120 volt circuits as well as 240-volt circuit along with a neutral wire. These circuits can be in any number of different combinations of 120 volts or 240 volts. Line 1 to neutral and Line 2 to neutral are used to power 120 volt lighting and plug loads. Line 1 to Line 2 is used to power 240-volt single phase loads such as a water heater, electric range, or air conditioner.