Answer for USA
The NEC requires that required outlets be installed anywhere from 5 feet high on the wall to as much as 18 inches from the wall on the floor. However, they are typically placed from 12-18 inches high on the wall. This is purely arbitrary, depending on what you think looks best and how accessible you want them to be.
It is important that you note I said this is what is required for required outlets. You can place an outlet anywhere you wish, except face-up in a counter. Just if it does not fall within the measurements I gave above the outlet doesn't qualify for what is a required outlet.
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Before you do any work yourself
on circuits, equipment or appliances,
ensure the circuit is, in fact, OFF.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Well, i usually measure 20 inches above floor height.
That is a standard i use, and for switches i measure 52 inches.
for all the houses and buildings i have installed i applied this.
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Standard heights on receptacles is 12 inches (300 mm) to center and on switches 48 inches (1200 mm) to center. Counter plugs 43 (1090 mm) inches to center.
12 inches
There is no code ruling on this. I set mine 12" to center. If you are putting in a new outlet in an existing home I would suggest you just match it to the height of the rest of the outlets.
Yes, an electrical receptacle can be positioned three feet from the floor. Counter top receptacles fall into this category.
There is no required height but normally it is best to keep them 12 inches off the groung.
Because it has electricity flowing to the outlet.
Answer for USA, Canada and countries running a 60 Hz supply service.The NEC does not require a certain height. Place it where it is convenient for you.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
to many electrical cords plugged into one outlet
I use a hammer from the floor to the bottom of the outlet. This equates to about 13". Usual construction specifications from the electrical engineers is 300mm or 12 inches to center of the device.
A 15 amp 125 volt outlet is a household outlet.
the height will depend on local building codes' requirements and also what time of outlet (ground, countertop for kitchen and bath, and ceiling such as in garage doors). Typically wall outlets are 16 inches on center from the finish floor.
Most electrician use the height of an electrician's hammer to mark the bottom of an outlet box. That height is 18 inches.
The receptacle is usually 12" to center and a distance radius of six feet between outlets along the wall.
I have never heard of wall space requirement in the electrical terminology. There is a code rule for the positioning of receptacle outlets around a room. This type of outlet has to be counted as a device when estimating the number of outlets that can be installed on one circuit. If you are talking about horizontal placement of electrical boxes at 300 mm floor level, then this outlet will not be included in that measurement.