Contractor Talk - Construction and Remodeling Site
CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!
Go Back   Contractor Talk - Professional Construction and Remodeling Forum > Trade Talk > Electrical

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 07-17-2009, 11:54 PM   #1
Member
 
dmanola7's Avatar
Trade: Electrician
 
Join Date: May 2009
Location: Down South
Posts: 39
Send a message via Yahoo to dmanola7
Gfci protection

Is there a limit to the number of receptacles connected to the load side of a GFCI or GFCI C.B. ?
The job I am doing is @ a bar and there are (5) 4" square boxes with (2) receptacles per box spread out about 5' apart. There is one circuit feeding these receptacles and they are being utilized for coolers. There is no GFCI protection and the last set of receptacles falls out next to the sink. Would a 20A GFCI C.B. be sufficient protection for these receptacles?

dmanola7 is offline   Reply With Quote
Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Join Contractor Talk

Join the #1 Contractor Forum Today - It's Totally Free!

ContractorTalk.com - Are you a Professional Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for contractors to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your trade is you'll find that ContractorTalk.com is a great community to join. Best of all it's totally free!

Join ContractorTalk.com - Click Here JOIN FOR FREE

Old 07-18-2009, 07:50 AM   #2
woodchuck2
 
woodchuck2's Avatar
Trade: Electrical Contractor&Home Maintenance
 
Join Date: Feb 2008
Location: North Creek, NY/Lower Adirondacks
Posts: 1,135
Your worried about how many rec you can put on one GFCI? I would begin with breaking up circuits for these coolers and putting a GFCI at the start "line" of each circuit. Even if the coolers are not maxing out the circuit i think you will find over time the GFCI will be stressed and fail. I just ran into this in a kitchen at a local bar/restaurant where a GFCI had failed and they were running a cooler and 2 food warmers off of it. I talked the owner into installing 2 more circuits that were GFCI protected to operate each appliance. I am sure someone else will chime in with better advice for you but that is where i would go with your problem. Good luck.
woodchuck2 is offline   Reply With Quote
Old 07-18-2009, 08:04 AM   #3
Electron Flow Manipulator
 
480sparky's Avatar
Trade: Electrons for cash
 
Join Date: Jan 2009
Location: Iowa
Posts: 2,001
Not in the NEC.

You may have a local amendment that has a limit. And some manufacturers used to have a numerical limit, but I haven't seen any for years.
__________________
By the time you can make ends meet, they move the ends.
480sparky is online now   Reply With Quote
Old 07-18-2009, 07:51 PM   #4
Member
 
dmanola7's Avatar
Trade: Electrician
 
Join Date: May 2009
Location: Down South
Posts: 39
Send a message via Yahoo to dmanola7
Quote:
Originally Posted by woodchuck2 View Post
Your worried about how many rec you can put on one GFCI? I would begin with breaking up circuits for these coolers and putting a GFCI at the start "line" of each circuit. Even if the coolers are not maxing out the circuit i think you will find over time the GFCI will be stressed and fail. I just ran into this in a kitchen at a local bar/restaurant where a GFCI had failed and they were running a cooler and 2 food warmers off of it. I talked the owner into installing 2 more circuits that were GFCI protected to operate each appliance. I am sure someone else will chime in with better advice for you but that is where i would go with your problem. Good luck.
I think I am going to run another circuit and break up the load, all the receptacles and conduit are behind the coolers, so once I get the area cleared I will do it to Code Standards. The bar is filled with hot girls so the longer I am there the better lol. Thanks for the advice woodchuck
dmanola7 is offline   Reply With Quote
Old 07-19-2009, 12:37 AM   #5
huntington beach, ca.
Trade: electrical
 
Join Date: Oct 2007
Posts: 318
Quote:
Originally Posted by dmanola7 View Post
Is there a limit to the number of receptacles connected to the load side of a GFCI or GFCI C.B. ?
The job I am doing is @ a bar and there are (5) 4" square boxes with (2) receptacles per box spread out about 5' apart. There is one circuit feeding these receptacles and they are being utilized for coolers. There is no GFCI protection and the last set of receptacles falls out next to the sink. Would a 20A GFCI C.B. be sufficient protection for these receptacles?
Ok I would use a GCFI per 2 cooler's, depending on loads, if they are between 1-5 amps each. Most likely needs 2 circuits. These are continuous loads also.
hbelectric is offline   Reply With Quote
Old 07-19-2009, 10:18 PM   #6
In the learning
Trade: Student/Electrical
 
Join Date: Jul 2009
Location: Greensburg PA
Posts: 11
Send a message via AIM to electrichelper Send a message via Yahoo to electrichelper
What I recommend is splitting the circuits to whatever, depending on amperage draw on each cooler. Then do voltage drop. There are two ways to run this circuit. You can run just breakers, due to easy access in my opinion since it's a bar, or place a GFCI receptacle at the beginning of each circuit for protection, but not so much convenient for being able to access it. As far as the limit, NEC states no limit but just look at local codes and specs in the direction booklet. Hopes this helps and good luck to you....
electrichelper is offline   Reply With Quote
Old 07-20-2009, 04:16 PM   #7
ampman
 
ampman's Avatar
Trade: providing pathways for electrons and protons
 
Join Date: Apr 2009
Location: central florida
Posts: 773
would the coolers be considered dedicated appliances not requiring gfi
__________________
an army of sheep lead by a lion will defeat an army of lions lead by a sheep
ampman is offline   Reply With Quote
Old 07-21-2009, 05:31 AM   #8
Pro
Trade: contracts/negotiations
 
Join Date: Nov 2007
Posts: 236
Inductive loads can cause false GFCI trips from kickbacks from compressor cycling. If it goes undetected, things may spoil.
Electric_Light is offline   Reply With Quote
Old 07-21-2009, 05:37 AM   #9
Member
Trade: Electrical Helper
 
Join Date: Nov 2008
Location: NJ
Posts: 50
Quote:
Originally Posted by Electric_Light View Post
Inductive loads can cause false GFCI trips from kickbacks from compressor cycling. If it goes undetected, things may spoil.
If you are concerned about this you could have an alarm of some sort downstream of the GFCI, and have it go off when there is no power.
crazyboy is offline   Reply With Quote
Old 07-21-2009, 05:49 AM   #10
Pro
Trade: contracts/negotiations
 
Join Date: Nov 2007
Posts: 236
Quote:
Originally Posted by crazyboy View Post
If you are concerned about this you could have an alarm of some sort downstream of the GFCI, and have it go off when there is no power.
What are you going to do when it goes out Friday evening, then not discovered until Sunday night?
Electric_Light is offline   Reply With Quote
Old 07-21-2009, 08:24 AM   #11
Registered User
Trade: Electrical Contractor
 
Join Date: Jul 2009
Posts: 3
Around here All 110v Cord and plug appliances in a commercial kitchen have to be GFCI protected, Even dedicated ones. So those would need GFCI protection. I know a Bar is not a Kitchen, but they still consider that food service around here. I thought it would be a nightmare, and was worried about the warranty period of my first job. Amazingly, I have hade no issues in about a dozen jobs now. I guess the GFIS have been improved a lot in recent years. The GFCI protection on exterior Pop machines however, have been tripping. I know that wasn't a question, but thought I would give some warning.

And yes it does happen when no one is around and things do go bad. The Code doesn't address these things. There are alarms that can contact you in event of failure, but not heavily used do to cost. I have only installed these in large foods stores

Last edited by DavidsElectric; 07-21-2009 at 08:27 AM.
DavidsElectric is offline   Reply With Quote
Old 07-21-2009, 08:39 AM   #12
Electron Flow Manipulator
 
480sparky's Avatar
Trade: Electrons for cash
 
Join Date: Jan 2009
Location: Iowa
Posts: 2,001
Quote:
Originally Posted by DavidsElectric View Post
...........I thought it would be a nightmare, and was worried about the warranty period of my first job. .............
If whatever is plugged in is tripping the GFI, you don't have a warranty issue.... you have a safety issue. You should not be condemned to solving a problem with someone else's equipment, rather you should be commended for creating a safe environment your installation has provided.

The GFI didn't trip because it's installed incorrectly, it tripped because there's a safety issue and it is doing it's job protecting people.
__________________
By the time you can make ends meet, they move the ends.
480sparky is online now   Reply With Quote
Old 07-21-2009, 04:48 PM   #13
Member
Trade: Electrical Helper
 
Join Date: Nov 2008
Location: NJ
Posts: 50
Quote:
Originally Posted by Electric_Light View Post
What are you going to do when it goes out Friday evening, then not discovered until Sunday night?
What am I going to do? Well nothing. But you could have it trip a dialer when it loses power so it will call you on Friday evening. BTW what bar have you seen that's closed on a Friday evening?
crazyboy is offline   Reply With Quote
Old 07-23-2009, 06:04 AM   #14
Pro
Trade: contracts/negotiations
 
Join Date: Nov 2007
Posts: 236
Quote:
Originally Posted by crazyboy View Post
What am I going to do? Well nothing. But you could have it trip a dialer when it loses power so it will call you on Friday evening. BTW what bar have you seen that's closed on a Friday evening?
Although the specific example maybe for a bar, the described event can happen elsewhere.
Electric_Light is offline   Reply With Quote
Old 07-24-2009, 12:19 PM   #15
CK1
Blame-Storm Mediator
Trade: MEP
 
Join Date: Jul 2009
Location: So Cal. (Behind the Curtain)
Posts: 7
In answer to your initial question, the rule of thumb is 5 devices on the load side of the GFI receptacle....

AND, GFI are not designed to handle appliance or equip. loads. They're for plugs.

GFI's are almost as sensitive on the Nuetral as they are on the ground. It will wear out and fail after a while and the devise is like a diode, it has a finite amount of on/off cycles.

ALWAYS seperate appliances from standard counter-top GFI's.

Ofcourse, that's just my opinion based on 25 years in the business and having done houses in So. Cal as big as 50,000 sq.ft.
CK1 is offline   Reply With Quote
Old 07-24-2009, 12:52 PM   #16
Electron Flow Manipulator
 
480sparky's Avatar
Trade: Electrons for cash
 
Join Date: Jan 2009
Location: Iowa
Posts: 2,001
Quote:
Originally Posted by CK1 View Post
...........GFI's are almost as sensitive on the Nuetral as they are on the ground..........
Huh?
__________________
By the time you can make ends meet, they move the ends.
480sparky is online now   Reply With Quote
Old 07-24-2009, 08:27 PM   #17
ampman
 
ampman's Avatar
Trade: providing pathways for electrons and protons
 
Join Date: Apr 2009
Location: central florida
Posts: 773
Quote:
Originally Posted by 480sparky View Post
If whatever is plugged in is tripping the GFI, you don't have a warranty issue.... you have a safety issue. You should not be condemned to solving a problem with someone else's equipment, rather you should be commended for creating a safe environment your installation has provided.

The GFI didn't trip because it's installed incorrectly, it tripped because there's a safety issue and it is doing it's job protecting people.
how many times have you been called out for a bad gfi when it was something that was plug in that had a ground fault people don't understand what we do.
__________________
an army of sheep lead by a lion will defeat an army of lions lead by a sheep
ampman is offline   Reply With Quote
Old 07-24-2009, 08:41 PM   #18
Electron Flow Manipulator
 
480sparky's Avatar
Trade: Electrons for cash
 
Join Date: Jan 2009
Location: Iowa
Posts: 2,001
Quote:
Originally Posted by ampman View Post
how many times have you been called out for a bad gfi when it was something that was plug in that had a ground fault people don't understand what we do.
It's an excellent opportunity to educate them then!
__________________
By the time you can make ends meet, they move the ends.
480sparky is online now   Reply With Quote
Old 07-25-2009, 07:13 AM   #19
Pro
Trade: Electrical
 
Join Date: Dec 2007
Posts: 100
Quote:
Originally Posted by CK1 View Post
GFI's are almost as sensitive on the Nuetral as they are on the ground. It will wear out and fail after a while and the devise is like a diode, it has a finite amount of on/off cycles.

As the GFCI is only monitoring the amperage between the current carrying conductors and tripping on an imbalance, could you elaborate on this statement. I would be most interested in your reasoning.
Ponsse is offline   Reply With Quote
Old 07-26-2009, 01:19 AM   #20
EMF, PLC specialist
Trade: Professional Pan Handler
 
Join Date: Jul 2009
Location: OC, Cali-phony
Posts: 44
Ya know you probably need a dedicated 15 or 20A circuit for that cooler alone GFCI or not. I don't normally use GFCI on major appliances, unless the job call for, because it suck to much juice and if it short out it'll trip the breaker anyway, probably just as fast as it trip GFCI. If you do try GFCI at the breaker it's much easier.
Softy is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Kitchen - use 20A GFCI at start w/ 15A outlets??? tmdelisle Electrical 25 07-28-2009 12:38 AM
AFCI Protection porject in class electrichelper NEC Discussion 2 07-14-2009 06:31 AM
GFCI question stp57 Electrical 6 04-18-2009 10:49 PM
GFCI protection for indoor spa/ hot tub Magnettica Electrical 30 04-25-2008 09:05 PM
gfci and bathroom outlets 72chevy4x4 Electrical 9 11-24-2007 09:11 PM


Top of Page | View New Posts


All times are GMT -5. The time now is 09:52 AM.


Contractor Talk™ © 2003 - 2009 The Building Network LLC