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Upside down electrical outlets?

jake26

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Feb 13, 2010
Messages
251
I have been looking for information on this site and online to give my garage a makeover when I read on a site that electrical outlets installed in the garage should be a minimum 18" off the floor and be installed "upside down" to prevent damage if something was to fall on the cord.

Question 1: Does installing outlets upside down have any advantage

Question 2: What height should outlets in the garage be installed? In all the photos I have seen on this site, it seems people install them around 3' AFF.

Thanks!!
 
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Falcon67

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1) makes you nuts when you go to plug things in but the idea is that any metal falling in the area between the outlet and plug would hit the ground pin first.

2) I'm not a code guy, I put my outlets where I need them. Most are 36+ off the floor, a couple are down low for routing cords out of the way, under windows, etc. All are GFCI protected - except the 220V machine runs.
 

Costner

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Jul 24, 2009
Messages
339
Not this again!

Ok for the record there is nothing in the electrical code that dictates the ground must be up or down, so it is 100% A MATTER OF PERSONAL PREFERENCE!

Some people claim they want ground up because if a piece of metal falls on the plug and magically falls between the plug and the receptacle it will hit the ground plug and then fall off to the side. If the ground was down, in theory it could connect the hot and neutral leads and result in a short which could in turn result in sparks or a fire or the world coming to an end apparently.

However, in the real world - when is the last time someone actually heard of this happening? Yea there some stories being told, but what is the actualy chance? You would have better luck of winning the Powerball while being struck by lightning while Marissa Miller was asking you to apply sunscreen to her **** body.

In short... not gonna happen.

Now having ground down does also have some advantages. Specifically if you plug in any type of transformer you will note the cord always is oriented so it comes out of the bottom assuming the ground pin is on the bottom. this means if you installed the receptacle with the ground hole up, you would need to install the transformer upside down which would then have the tendency to pull away from the wall due to the stress and weight upon the cord.

I should note most residential installations have ground down because of the orientation of most cords and transformers whereas most commercial installations have ground up - but not always, and it isn't due to code reasons.

At the end of the day each person needs to do what they want to do. Install them ground up, install them ground down, install them sideways or install them on a 45 degree angle if you really have the desire - it really doesn't matter.
 

spongerich

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Apr 17, 2010
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Monroe, NY
I like to install mine with the receptacle facing inside the wall.

Makes it a little less convenient to plug things in, but nothing can fall on the exposed plug that way. ;-)
 

Mike83

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Jan 24, 2008
Messages
2,156
Location
Wisconsin
I have been looking for information on this site and online to give my garage a makeover when I read on a site that electrical outlets installed in the garage should be a minimum 18" off the floor and be installed "upside down" to prevent damage if something was to fall on the cord.

Question 1: Does installing outlets upside down have any advantage

Question 2: What height should outlets in the garage be installed? In all the photos I have seen on this site, it seems people install them around 3' AFF.

Thanks!!

You can install outlets IN the floor if you want! How else would cleaning people be able to vacuum huge lobbies and conference rooms?
 

Norcal

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Mar 16, 2008
Messages
13,754
If anyone says one way or the other is correct they are FLAT wrong, NEC code committees refuse to touch the issue.

Ground prong up/down threads get locked quickly at professional electrical forums.
 

User_Name

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Teegeeack
I've always installed outlets ground up. A world of little happy faces isn't for me.

But that's the Quebecois way. Every place I've had in Montreal was like that and it freaked me out. When my condo was being built I wanted to tell them to install the outlets the other way but figured it would confuse the electricians and freak out any local that might want to buy it when I decide to sell.
 

mrb

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Dec 31, 2008
Messages
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when installing a receptacle ground up, do you still have to tape it?
 

PassnThru

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Bowling Green KY
However, in the real world - when is the last time someone actually heard of this happening? Yea there some stories being told, but what is the actualy chance? You would have better luck of winning the Powerball while being struck by lightning while Marissa Miller was asking you to apply sunscreen to her **** body.

In short... not gonna happen.
So - you're saying that I don't really have anything left to live for :confused:
 

larry_g

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Apr 28, 2007
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16,877
Location
oregon
Not this again!



Some people claim they want ground up because if a piece of metal falls on the plug and magically falls between the plug and the receptacle it will hit the ground plug and then fall off to the side. If the ground was down, in theory it could connect the hot and neutral leads and result in a short which could in turn result in sparks or a fire or the world coming to an end apparently.

However, in the real world - when is the last time someone actually heard of this happening? Yea there some stories being told, but what is the actualy chance?

Been there and seen it happen. Had a utility rack running along the aisle way. Above the rack were metal safety signs saying safety glasses required etc. The signs were hung fron the ceiling with fish line. The lines broke and the sign dropped and hit the prongs. A bit of a flash and the breaker blew.

So who is this girl whom I am supposed to rub down?

lg
no neat sig line
 

Falcon67

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Location
Merkel, TX
I just remembered I have a GFCI that solves this whole problem - the ground pin is on the right side when looking at the outlet. I didn't tape it, so only score me 1/2 point. :thumbup:
 

mmhouse

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Aug 31, 2008
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754
Location
Desert Southwest
I guess the good news is that however you install them, if it turns out you don't like it you can always turn them over.

I suppose you'd have a problem if you installed them horizontally though.
 

1Garageman

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May 12, 2009
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Columbus, Ohio
I just remembered I have a GFCI that solves this whole problem - the ground pin is on the right side when looking at the outlet. I didn't tape it, so only score me 1/2 point. :thumbup:

I will hook you up with another 1/2 point:thumbup:! I am going to wire my garge wtih GFCI's and do the same thing.:beer:
 

Charles (in GA)

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Jan 11, 2006
Messages
12,489
Location
50 mi south of Atlanta
Not this again!

Ok for the record there is nothing in the electrical code that dictates the ground must be up or down, so it is 100% A MATTER OF PERSONAL PREFERENCE!

Some people claim they want ground up because if a piece of metal falls on the plug and magically falls between the plug and the receptacle it will hit the ground plug and then fall off to the side. If the ground was down, in theory it could connect the hot and neutral leads and result in a short which could in turn result in sparks or a fire or the world coming to an end apparently.

However, in the real world - when is the last time someone actually heard of this happening? Yea there some stories being told, but what is the actualy chance? You would have better luck of winning the Powerball while being struck by lightning while Marissa Miller was asking you to apply sunscreen to her **** body.

In short... not gonna happen.

Agreeded 100% +

In my house, the outlets are sideways. I have a log house. In this particular type of log construction, it is easy to install the boxes sideways. All ground pins are to the left. When I moved in, it drove me crazy, some were one way, some the other, just random. I replaced all receptacles ((they were the 59 cent variety (price stickers on some of them) and nothing would stay plugged in)) and put all the grounds to the left. I have nylon face plates, it doesn't matter, but the ground to the left just happens to put the neutral blade up.

In the shop, I put all receptacles with the ground down. They are secured with three screws each into industrial type 4" box dual receptacle faces. Receptacles grip so tight, they are not about to pull 1/2 out and let something fall on them, it just isn't going to happen.


Now having ground down does also have some advantages. Specifically if you plug in any type of transformer you will note the cord always is oriented so it comes out of the bottom assuming the ground pin is on the bottom. this means if you installed the receptacle with the ground hole up, you would need to install the transformer upside down which would then have the tendency to pull away from the wall due to the stress and weight upon the cord.

I should note most residential installations have ground down because of the orientation of most cords and transformers whereas most commercial installations have ground up - but not always, and it isn't due to code reasons.

I like ground down, because three pin plugs are easier for me to plug in, and I know that two pin plugs will need the wide blade to the left as I reach to plug them in.

I'm yet to see a three pin transformer. An examination of the transformer bricks and similar chargers in the house (cable modem brick, cordless phone brick, cell ph charger, camera batt charger, stinger flashlight charger, bricks for various computer accessories) showed that all were two prong, all had equal width blades, and could be plugged in either way. I have one, probably in the shop, that has unequal width blades and will only plug in one way. I didn't find it in my search.

At the end of the day each person needs to do what they want to do. Install them ground up, install them ground down, install them sideways or install them on a 45 degree angle if you really have the desire - it really doesn't matter.

Agree 101%

Charles
 
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Torque1st

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KC Metro, Kansas
Old cords and appliances like refrigerators were made with the ground pin up to lay flat against the wall. Newer cords are made for "happy face" outlets and the ground pin is down. If I am wiring for an appliance I wire the outlet so the cord lays right.

My mother had a cookie sheet drop down behind her refrigerator and sparks flew. Don't ask why she was storing a cookie sheet on top of the refrigerator. There is no telling what a mother might do... Which is why I wire everything ground pin up if there is no specific reason not to.
 
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BioHazard

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Old cords and appliances like refrigerators were made with the ground pin up to lay flat against the wall. Newer cords are made for "happy face" outlets and the ground pin is down. If I am wiring for an appliance I wire the outlet so the cord lays right.

This is exactly what I was going to say. As everybody else agrees, there is no code or requirement for this...however, many cords are designed to be used with in the ground down orientation. This is the "standard" way of doing it and the way most electricians will unless given specific instructions otherwise.

If anybody thinks it's a safety issue you're off your rocker, you can make a safety arguement about it with the outlet in ANY orientation.

http://en.wikipedia.org/wiki/NEMA_connector#Non-locking_connectors
NEMA wall receptacles can be found installed in any orientation. Neither NEMA nor the U.S. National Electrical Code nor the Canadian Electrical Code specify a preferred orientation, and different orientations may be found in the same building. However, the orientation with the ground pin on the bottom is the most common, which places the neutral pin on the upper left and the hot pin on the upper right.

Or if you're one of those who are confused about your orientation and still experimenting...
03.30.acenti.jpg

It swings both ways. :thumbup:
 

BioHazard

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BTW - all the outlets in my shop are mounted at 4'. This way they're above bench height if I put something against the wall, and, I'm less inclined to pull on the cord if I don't have to bend over to unplug it.

Also, the likelyhood of something "falling" on 4' high outlets is rather small. If you're really worried about safety with the outlets, you could install outdoor type "flap" covers for each outlet. They also sell "in use" covers. I had those flap things in my shop when I moved in, instead of proper GFCI outlets - god I hated them.
 

Stick Figure

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Omaha, Ne
When i moved my shop to one location, the inspector came out and made them move all of the outlets up past a certain level (i forget what the code was). Including wiring. Yes they tried to just extend them up and leave wire nuts inside the wall at the original height. When i asked what the big deal was, I was told it had to do w/ gasoline fumes. I guess they stay low and the outlet is suppose to be high enough to not ignite them if there is an arc. Probably not common but i'm sure its happened at least once.
 

FNFS2000

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Jan 12, 2009
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heard of it being job spec, but some engineers will make you do all kinds of weird stuff...
 

hidollartoys

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K. C. Metro area
If the outlet is turned horizontal on which side should the grnd pin be. I suppose it depends on if you are right handed or left handed. :lol_hitti

Why don't we get together, I will bring the dead horse and you guys can bring your own clubs. Everyone has a horror story about electricity. I wont mention my finger/light socket incident, but I have been searching for a fingerproof socket ever since.:wtf:
 

JBurgess

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Arizona
When i moved my shop to one location, the inspector came out and made them move all of the outlets up past a certain level (i forget what the code was). Including wiring. Yes they tried to just extend them up and leave wire nuts inside the wall at the original height. When i asked what the big deal was, I was told it had to do w/ gasoline fumes. I guess they stay low and the outlet is suppose to be high enough to not ignite them if there is an arc. Probably not common but i'm sure its happened at least once.

That would be 513.3(B)(1). But it applies to comercial garages, not residential. 18" is the hieght.
 

ddawg16

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Jul 11, 2008
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21,005
Location
S. California
On airplanes the ground pin is up....

All of my cords that have the 90-flat against the wall shape are designed to have the ground pin down (otherwise, the cord goes up).

With this being a democratic board....do both.....I'm actually thinking of changing my sockets....all of them are 4' off the ground 4-plex....so I'm thinking of putting one side up, the other down....

Might look a little funny.....but at least all of my screws are turned vert.
 

marklandon

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Jul 12, 2008
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Location
Bullhead City AZ
The only time I know that the ground is up on the outlet is when a metal cover is use so if the cover screw comes out and the plat falls down with a cord pluged in the ground is up and the cover won't short out.
 

thdewey

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Feb 26, 2008
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Gastonia, NC
1. I placed all of my garage outlets 'upside down'. I just think it makes sense in a garage (a lot of flat metal tools, parts and materials). All the house outlets are 'right side up'. Now I'm used to the arrangement.

2. I placed all of my outlets @ 48.5" off the floor. I used OSB on the walls. It was practical to only cut at the edge of the 48" panels 1/2" off floor.

Best of luck.
 

no2tracks

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Dec 7, 2008
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Colorado Springs
I've witnessed sparks flying twice. While working as an electricians apprentice at Hewlett-Packard, some clipped leads from circuit boards fell off a bench onto and across the hot and neutral prongs of a plug in a outlet, shorting the circuit. After that all our installations were ground up.

Another at a bike shop that had a power strip across the wall just above the back of a workbench. I know, a bad installation idea, but not mine. A tape measure fell down across several plugs and shorted the circuit. Later a metal rule fell there too. I do all my installs ground up from now on.

Just my$.002
 

gatchel

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West of King of Prussia, PA
I put the gound pins up on all receptacles except for the kitchen ones that are along the counter tops. They go gound pin down just in case some metal object (aluminum foil) slides up the backsplash and may possibly make contact with the pins..my $0.02 also.
 
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