Why do people say 110

Standardized power mains voltages started as and VAC systems. You know Tom w8ji? I'm also an amateur Radio Operator ka7gkn BHD commented. No I do not know Tom, but that section of the page gave the info I was looking for, I dabbled with amateur radio when in High school.

This standard specifies two voltage ranges, Range A and Range B, which included both service voltage and utilization voltage. Service voltage for this situation was usually interpreted to be at the meter, and utilization voltage was at the terminals of the utilization equipment. Electric supply systems were to be so designed and operated that most service voltages would be within the limits specified in Range A.

The occurrence of service voltages outside Range A was to be infrequent. Range A utilization voltage was specified to be between and V. The current line voltage, since the late 's in most locations and since the 's by written uniform standard ANSI Standard C In the USA, it is volts or volts.

My understanding is that there is a such an actual range in supplied voltage that residential supply could be either V or V and still be considered acceptable. So either description would work and measuring V or V with your voltmeter could be considered acceptable. Checking voltage on hundreds of water pump systems over the years maybe thousands I have measured voltages from the high 90's to as high as volts ac.

Then there is vac which is used in certain areas. Why I don't know, but it exists. The big thing is to know the difference between and volts as to what the two wires do. In you have a neutral. With volts you have two hots. No neutral. It's mainly ignorance. When somebody says or it's an instant clue that they probably don't know what they are talking about. Nobody in the United States has v or v service. In the United States, utility companies are required to provide a split-phase V feed to your house.

This consists of two legs of VAC that are degrees out of phase with one another. The picture below depicts one V leg in red and another in yellow. The 0V line in the middle is the voltage of your neutral line. AC power oscillates at 60 cycles per second 60 Hz in the U. Other parts of the world use a 50Hz standard. With the two legs feeding your house being out of phase, can you pick up V AC by using both legs rather than one leg and neutral. The neutral wire is not utilized in a V circuit as the current is fed by one leg and returned on the other leg.

A word of caution These voltages refer to 3-phase power systems, more typically found in commercial or industrial applications for large motors and other equipment. These power systems are 3-phase where V is the voltage between two phases of a Y-connected circuit that is V from neutral to any single phase.