The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Parking lot pole light swap....
by gfretwell
10/24/16 08:46 PM
International Wire Colour Codes
by Tjia1981
10/23/16 12:08 PM
Son of Sparky
by HotLine1
10/20/16 07:43 PM
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 14
HotLine1 7
ghost307 7
renosteinke 6
Potseal 4
Who's Online
0 registered (), 339 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#202141 - 07/20/11 12:15 PM floor receptacle in commercial kitchen
cgw Offline

Registered: 07/29/04
Posts: 133
Loc: Rochester NY
Is a conduit up out of the floor supporting a box with a receptacle an acceptable installation?
(for a piece of kitchen equipment out in the middle of the floor (not near a wall))

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#202146 - 07/20/11 02:08 PM Re: floor receptacle in commercial kitchen [Re: cgw]
renosteinke Offline
Cat Servant

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
Sure, you can do it. BUT ....

Be aware that the thing will have the living daylights beat out of it as the tables get shifted about and the floor gets hosed off. Plan accordingly.

Which means ... 3/4 rigid stub-ups, a second support to keep the box from twisting, compression connectors to allow future box replacement, and cast-iron FS-type boxes (not the wimpy Bell boxes). AND have the GFCI somewhere else.

#202152 - 07/20/11 04:43 PM Re: floor receptacle in commercial kitchen [Re: cgw]
Tesla Offline

Registered: 06/16/04
Posts: 1280
Loc: Sacramento, CA
Normally pendent drops are used.

The Health Inspector will normally be your objecting party.

#202153 - 07/20/11 05:05 PM Re: floor receptacle in commercial kitchen [Re: cgw]
HotLine1 Offline


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA

I agree with Reno & Tesla. I would also add...check with your local AHJ first.

Edited by HotLine1 (07/20/11 05:44 PM)

#202157 - 07/20/11 06:55 PM Re: floor receptacle in commercial kitchen [Re: cgw]
gfretwell Offline


Registered: 07/20/04
Posts: 9026
Loc: Estero,Fl,usa
In the fast food business I saw a mix of the FS boxes Reno described on 3/4" RMC stub ups and pendants.
They really try to put in a stem wall with regular receptacles on them and FRP sheathing or tile for the wash down. I imagine with the GFCI requirement the pendants are even more attractive.
Greg Fretwell

#202166 - 07/20/11 08:30 PM Re: floor receptacle in commercial kitchen [Re: cgw]
ghost307 Offline

Registered: 05/09/05
Posts: 883
Loc: Chicago Illinois USA
If you're using GRC and cast boxes, you'll have to use Erickson couplings if you want to make any future box replacement easier. Also, the permanent location of the box will interfere with any future rearrangement of the Kitchen.
I vote for using drops like you see at all of the McDonalds.


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals