- Location
- New Jersey
- Occupation
- Journeyman Electrician
Ground up or down?
- Thread starter chris kennedy
- Start date
- Status
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
T&M, I'll paint them pink if asked.
Last edited:
- Location
- Massachusetts
'Zactly. If they wanted 4/0 to the ground bar, I'd do it too.
Remember, the Code is a minimum, not a mandate.
Chris, if they asked you to shave (and paid for it), would you do that, too? :grin:
- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
Two questions:
1. What is a "wall wart"?
2. Did the IT guy specifically ask for two receptacles to be ground up, and the other two to be ground down?
One comment:
I am in the middle of several projects for which IT equipment is to be placed in racks, and for which there is a quad receptacle between each rack. Much of the rack-mounted equipment is plug and cord connected. So in your installation I would not be surprised to learn (if this indeed is true) that the up/down request was based on having some equipment higher than the outlet box and other equipment lower than the box, and based on the IT guy's notion of cord management.
1. What is a "wall wart"?
2. Did the IT guy specifically ask for two receptacles to be ground up, and the other two to be ground down?
One comment:
I am in the middle of several projects for which IT equipment is to be placed in racks, and for which there is a quad receptacle between each rack. Much of the rack-mounted equipment is plug and cord connected. So in your installation I would not be surprised to learn (if this indeed is true) that the up/down request was based on having some equipment higher than the outlet box and other equipment lower than the box, and based on the IT guy's notion of cord management.
- Location
- Massachusetts
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
Lets not get carried away.
I believe it is spelled 'Wahl wart'.:grin:
These installs are on phone boards and yes, two transformers will be plugged in each. Server racks sit in the middle of the rooms and will be fed from overhead.
- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
Thanks, Bob and Chris. One wonders how such names get started. 
- Location
- Massachusetts
Your very welcome.
One wonders how such names get started.
It hangs on the wall and is as attractive as a wart. :smile:
They are very common in IT rooms.
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
I should have gotten a picture of the one the Telco provider uses, tan with green indicator light and slightly larger than the ones shown. Surge supressor?
ItsHot
Senior Member
- Location
- A little piece of heaven!
wart?
wart?
They may look like a "wart", but they sure fall off easier! oh...that's what the little screw is for!:-?
wart?
They may look like a "wart", but they sure fall off easier! oh...that's what the little screw is for!:-?
gar
Senior Member
- Location
- Ann Arbor, Michigan
- Occupation
- EE
090809-0953 EST
My general argument for ground pin down is:
(1) The plug ground pin is longer than the other two pins.
(2) Most cords hang down from the outlet location.
(3) A plug with the ground pin down and as the plug works its way out of a loose socket the ground pin is likely to disconnect last. Thus, the equipment chassis remains connected to ground until after the power connections disconnect.
(4) If the ground pin is up then it might be possible that as a plug is working its way out of the socket that the hot pin remains energized after the ground pin separates.
(5) In addition to this I think it looks better if the ground pin is down.
In reality there probably is no significant safety problem.
I have been in motels where the sockets are so poor that I can not keep the plug in the socket.
.
My general argument for ground pin down is:
(1) The plug ground pin is longer than the other two pins.
(2) Most cords hang down from the outlet location.
(3) A plug with the ground pin down and as the plug works its way out of a loose socket the ground pin is likely to disconnect last. Thus, the equipment chassis remains connected to ground until after the power connections disconnect.
(4) If the ground pin is up then it might be possible that as a plug is working its way out of the socket that the hot pin remains energized after the ground pin separates.
(5) In addition to this I think it looks better if the ground pin is down.
In reality there probably is no significant safety problem.
I have been in motels where the sockets are so poor that I can not keep the plug in the socket.
.
- Location
- Massachusetts
A heads up to all.
If this thread turns into discussion of the merits of ground up or ground down it will be closed.
That topic has been discussed to death. The bottom line is it is the designers or installers choice, the NEC is silent on the issue.
Should a receptacle be installed with its ground connection point up or down?
If this thread turns into discussion of the merits of ground up or ground down it will be closed.
That topic has been discussed to death. The bottom line is it is the designers or installers choice, the NEC is silent on the issue.
Should a receptacle be installed with its ground connection point up or down?
- Location
- Massachusetts
And now it's closed.
- Status