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in the olden days, electrical engineers figured if you drop razorblade or pin between the receptacle and the plug, the metal will get in contact with the ground prong thus minimizing the chance of energizing a metal object. this is why most outlets in schools and hospitals are installed ' upside down". nowadays we install them 'downside up' to see a smiling face. ha ha.
Outlets can be installed in either orientation, as long as they are properly grounded. Some electricians believe that placing the ground connector on top reduces the risk of objects falling on it. Ultimately, as long as the outlet is functioning properly and safely, the orientation is a matter of personal preference.
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How do you plug in nema 6-20 into a North American 3 prong outlet?
You cannot plug a NEMA 6-20 plug, which has two hot wires and a ground wire, into a standard North American 3-prong outlet. The outlet is designed for 3-prong plugs with two hot wires and a neutral wire. You would need to install a NEMA 6-20 outlet with the appropriate wiring to accommodate the NEMA 6-20 plug.
Is it safe to plug in three prong appliances into a three prong wall outlet that has no ground to it?
No, it is not safe to plug in three-prong appliances into a three-prong outlet that lacks proper grounding. Without a ground wire, the appliances may not be protected against electrical faults, posing a risk of electric shock or fire. It is recommended to have an electrician install a grounded outlet to ensure safe operation.
Why are some outlets upside down?
Are you asking about a standard USA 120 Volt domestic wall socket containing a pair of outlets, where one outlet is positioned below the other one but looks upside down? If so, here goes:Each pair of socket outlets is made like this: a springy brass contact strip is fitted underneath the top outlet's left hole to connect it to the bottom outlet's left hole. Another springy brass contact strip is fitted underneath top outlet's right hole to connect it to the bottom outlet's right hole.One supply wire is connected to the left-hand contact strip and the other supply wire goes to the right hand contact strip.It doesn't actually matter which outlet hole is the hot and which is the neutral because the system allows you to put in an ungrounded plug either way round.If there are any ground holes these are positioned above and below each pair of the contacts described above, at the mid-way point. The top outlet's 3 holes then look like one triangle and the bottom outlet's 3 holes look like another triangle that is upside down to the top one!Another answerThe NEC does not specify what position a duplex receptacle is placed. However, some electrical plans, such as those for hospitals, may call that receptacles be placed with the ground hole facing up. This is to help prevent contact being made with the hot and neutral with something falling on a plug of a cord. The ground prong may help protect this from happening.The other school of thought is that with the ground hole facing down on a duplex receptacle if the plug of the cord has something fall on it the last blade to disengage would be the ground pin.Another explanationReason why "ground-down" is best/safer: the socket for the ground pin should be down because, if the plug starts to work its way out from weight on the cord, the first things to disconnect will be the power pins and that all-important ground pin will be the last to go, thereby providing its protection until no longer needed because the power pins have been disconnected first.
Does the anatomical position change if the body is upside down?
If the body is upside down then it is no longer in the anatomical position. But no, it would not change.
Is Uranus an upside down planet?
Yes, Uranus is often described as an "upside-down" planet because its rotational axis is tilted at about 98 degrees. This means that during its orbit around the Sun, Uranus appears to be rotating on its side.
Why would a steering wheel be upside down when enterina a car?
Steering wheel was installed upside down or the steering wheel is turned 180 degrees.
How do you know which outlet is controlled by a switch?
Plug a lamp into a working socket of an outlet to ensure the lamp works. Then turn off the switch and plug lamp into all outlet sockets, top and bottom outlets until the lamp doesn't light. Then turn on the switch and the lamp should light. Often a switch in a bedroom is only connected to one socket in a duplex outlet. It is possible to remove a jumper in an outlet to isolate the sockets for just this purpose. Often an electrician will install the outlet upside down (The third prong pointing up, to identify the outlet.
Piston rings installed upside down can cause what?
a.Higher Compressionc.Engine Knockingb.Increased Horsepowerd.Oil Consumption
Why your FN FAL wont cycle the round?
because gas plug has probably installed upside down
Why are the slides in a projector upside down?
The image on a projector is often upside down because of the orientation of the projector relative to the screen. Projectors are designed to be installed upside down or right-side up depending on the installation setup, and the image can be adjusted using the projector settings to correct the orientation.
Why would the Desktop display upside down on the monitor?
Is it the monitor, the video card or a setting? If you have access to another monitor, plug it in and see if it too is upside down. If that's it, the yolk is installed wrong on the monitor CRT.
How is memory installed on the Apple Mac Mini?
Memory is installed on the Apple Mac Mini by turning it upside down and removing the cover. The memory module can then be easily removed and replaced.
Why is there no power to outlet when light switch is turned off?
Some rooms have an outlet controlled by a light switch at the door. This is normally in bedrooms. It is possible that the switch is wired to only one of two outlets in a duplex outlet since it is easy to configure a duplex outlet to separate the bottom and top outlets.
What sports are upside down?
Gymnastics is kind of an upside down sport because the handstand you do it upside down and that's the only sport you do upside down flips and etc...
If a bat spends more time upside down than not upside down and it sleeps upside down are it's dreams also upside down?
Dude are you serious? And probably not
Do kangaroos sleep upside down?
No they do not sleep upside down.
When was Upside Down created?
Upside Down was created in 1979.
