El servicio eléctrico más popular para cargas pequeñas comerciales u otras cargas pequeñas se denomina:
a. 120/240V monofásico, de tres cables.
b. 120/240V trifásico, de cuatro cables.
c. 120/208V trifásico, de cuatro cables.
d. 277/480V trifásico, de cuatro cables.
a. 120/240V monofásico, de tres cables.
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