Yes, that's most-surely what led to my confusion about the way a 240v
So, a 240v circuit apparently doesn't have a direction....or rather, it
has 2 directions at the same time, from one leg to another, and vice-versa.
First off there is a single phase, a 240v circuit needs no neutral.
The potential of the two legs is 180 degrees different to cause that
A 120v circuit require a neutral return path.
If you have two signals that are 180 degrees out of phase they cancel
each other. That would be a two phase system and you only have one.
On Friday, June 10, 2016 at 9:11:36 AM UTC-5, Markem wrote:
The "potential" is a voltage term. The 2 "hot" wires are in phase for 240 s
ingle phase. If you took 2 120 Volt circuits from the same side of the pane
l (in phase) black to black, white to white...you would have effectively, t
he same circuit at 120 V. 240 out of phase? Not sure of the consequences of
As others are pointing out, you'll be fine.
Old fuses would blow with the initial spike of current when saw motor
A modern circuit breaker needs to heat up to trip (except in the case of
a short) so it can't get hot enough to trip from the very short current
spike of the motor's start-up.
At least that's my layman's explanation of it. :-)
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