Single Phase or Three Phase?
Single phase power. Household use, safer, less efficient.
Three phase power. Commercial/Industrial use, 73% more efficient, more expensive to install, motors last longer, speed control is better.
The horizonal line in the center is zero/off/no power. As you can see, in single phase, power output drops to zero then to full then back again. Three phase power never falls to zero. It only falls to 73% of full.
Three phase power is not allowed for household use. The highly efficient overlapping power band is dangerous. If someone grips a cable energized by three phase it is very difficult to let go. Short circuits are more dangerous.
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Electrical contractor serving the Lower Mainland of BC including Abbotsford, Agassiz, Aldergrove, Anmore, Belcarra, Burnaby, Chilliwack, Coquitlam, Delta, Hope, Langley, Maple Ridge, Mission, New Westminster, North Vancouver, Pitt Meadows, Port Coquitlam, Port Moody, Richmond, Squamish, Surrey, Vancouver, West Vancouver, Whistler & White Rock. Also serving the Cariboo region.
Pacific Star Electric
22323 Dewdney Trunk Rd.
Maple Ridge, BC Canada