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Frankie
Frankie asked in Science & MathematicsEngineering · 9 years ago

What phase standard is needed for a single family dwelling?

What phase standard is needed for a single family dwelling?

A. two phase, 120volts

B. Single phase 120/240 volts

C. Three phase 120/208 volts (wye: y)

D. Three phase, 120/240 volt(delta)

4 Answers

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  • ?
    Lv 7
    9 years ago
    Favorite Answer

    B in USA and Canada and some other countries.

  • whycantigetagoodnickname
    Lv 7
    9 years ago

    Single phase generally for domestic use

    3 phase for industrial use

    2 phase is practically never used

  • Static Ninja
    9 years ago

    B

  • ThinMan
    Lv 7
    9 years ago

    It is (b).

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