Question about General Electric 20 Amp, 1 Pole Thick Type THQL Ground Fault Interrupter Ge
While there is a practical limit for the number of outlets on a 15 or 20 amp general purpose lighting circuit in a _residence_, the National Electric Code (NEC) does not impose a # of outlets per circuit limit (residential ONLY).
However, some electrician's design general purpose lighting circuits in a residence using a point system. An outlet is 2 points and a light is 1 point. So, for a twenty amp circuit, (10 outlets x 2 points) = 20. Or, (5 outlets x 2 points) + (10 lights x 1 point) = 10 + 10 = 20. Or (8 outlets x 2 points) + (4 lights x 1 point) = 16 + 4 = 20. However you want to mix it up.
Now, if this is for a Commercial building, the the NEC allows no more than 180 VA (Volt Amps) per outlet. 180 VA / 120 Volts = 1.5 Amps.
20 amps / 1.5 Amps = 13.3 outlets. Drop the .3 and one determines that 13 outlets are allowed on a Commercial 20 amp circuit.
Also, if the 20 amp circuit is considered a continuous circuit (ON for more than 3 hours a day), then it can only be loaded to 80%. 80% of 20 amps = 16 amps.
Posted on Aug 08, 2010
Testimonial: "Thanks! That helps a lot..."
The reality is that a 20 amp circuit breaker itself does not determine much of anything except the wire gauge. You should use 12 gauge wire with a 20 amp breaker. That is because you want the breaker to always go first before the wire, so then a 20 amp breaker requires thicker wire then a 15 amp breaker.
As far as outlets, that depends on what you want to hook up and where.
If you have properly spread them out, you can hook up about 10 circuits to a 20 amp breaker. That is because most people do not use all rooms at once, so you can divide a breaker up into many different rooms at once, without risk of overload. This also has the advantage of making sure all the lights and sockets in a room do not go out with a single breaker, if there are more than one breaker to a room and each breaker goes to many rooms.
However, because it uses thicker wire, a 20 amp breaker is usually a specialty. It is used for large draws like refrigerator or microwave, and therefore may be hooked up to a single outlet.
It all depends.
Posted on Aug 09, 2010
Testimonial: "That's kind of what I thought. Thanks for verifying for me!"
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 23, 2016 | Cars & Trucks
Apr 14, 2008 | Dryers
Mar 20, 2015 | Ovens
Jan 24, 2013 | Electrical Supplies
Jan 13, 2013 | Heating & Cooling
Dec 01, 2012 | Coleman Cable Woods 59402 40Amp Timer for...
Sep 09, 2009 | Kenmore Microwave Ovens
Aug 31, 2009 | 2006 Ford Explorer
370 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: