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Electrical Wiring FAQ (Part 2 of 2)
Section - Is it better to run motors at 110 or 220?

( Part1 - Part2 - Single Page )
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Top Document: Electrical Wiring FAQ (Part 2 of 2)
Previous Document: What is 3 phase power? Should I use it? Can I get it in my house?
Next Document: What is this nonsense about 3HP on 110V 15A circuits?
See reader questions & answers on this topic! - Help others by sharing your knowledge

	Theoretically, it doesn't make any difference.  However, there
	is a difference is the amount of power lost in the supply
	wiring.  All things being equal, a 110V motor will lose 4 times
	more power in the house wiring than a 220V motor.  This also
	means that the startup surge loss will be less, and the motor
	will get to speed quicker with 220V.  And in some circumstances,
	the smaller power loss will lead to longer motor life.

	This is usually irrelevant unless the supply wires are more
	than 50 feet long.

User Contributions:

1
Dev
⚠
In a fire protection circuit, circuts are shown witha no example 6,8,4etc. what it mean?these circuits are connected between smode detector,junction box etc
2
kevin
⚠
My daughter dropped a small necklace behind her dresser. The necklace crossed a plug terminal and shorted the receptacle.
I bought a new receptacle and installed the same. I still have no power I suspect there could be a bigger problem,this is aluminum wiring.
I've killed the breaker and call an electrician but am curious as to what happened.P.s. there is a dimmer switch on the same circuit.
3
dennis
⚠
Regarding new construction wiring and running 12/2 and 14/3 wire in the same box.

I have multiple switches to lights. Ran 12/2 and 14/3 into switch box and inspector wrote correction needed.

What should I have done instead?

thank you
dennis
4
Robert
⚠
Does a grounding electrode facilitate the operation of a OCPD, to clear a ground fault ?
5
@dennis
⚠
Assuming you are installing two switches in a two switch box, you probably should have used 14/2 and 14/3 instead of replacing 14/2 with 12/2. If you are only installing one switch in a one switch box, you should only have one cable in the box.
6
P k
⚠
I prefer to use nothing smaller than12 awg /the smallest sized wire on a circuit determines the allowable ampacity
Ex: 15 amp-14awg. 12awg-20amp only rule for thumb other factors such as continuous load,heating and others if you do not know the safe NEC rules then please call a qualified journeyman Electrician better be safe

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Top Document: Electrical Wiring FAQ (Part 2 of 2)
Previous Document: What is 3 phase power? Should I use it? Can I get it in my house?
Next Document: What is this nonsense about 3HP on 110V 15A circuits?

Part1 - Part2 - Single Page

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Last Update March 27 2014 @ 02:11 PM