McCready00
Active Member
except for motors.. is there anything bad that could be happening for lighting equipements.. or sound equipments.. ?
i haven't seen the most i mportant issue with swapping phases brought up yet...
a tear in the fabric ofthetime/space continuum..
no, that's only if you cross the beams.
except for motors.. is there anything bad that could be happening for lighting equipements.. or sound equipments.. ?
The answer varies by type of three phase....
WYE is the most common, providing 208 V phase to phase, and 120 V from any phase to neutral. Only three phase motors will care about phase order.
DELTA is 240 V phase to phase, and two of the phases are 120 V to neutral. The third phase is 208 V to neutral!! Mix up the phases with a delta, and the "wild leg" will damage or destroy 120 V loads! Motor rotation is also a factor here.
Delta isn't very common in stage environments, but you need to be aware of it. Be very cautious when you encounter it. This is why you should always measure all of the voltages before hooking up in an unfamiliar situation.
Common thing to watch out for when working on cruise ships.
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