answersLogoWhite

0


Best Answer

As wiring through a sub panel involves pulling more wire than direct wiring there is a tiny loss of power due to the additional wiring footage due to simple resistance of the conducting material (usually copper, sometimes aluminum). In and of itself, a sub-panel does not cause a loss of power. It is merely a convenience for operators to switch off circuits on a selective basis for maintanance without having to go to the center or having to call someone in Maintanance to switch off a circuit. For example in a Commercial building there are in the Main Breaker Box several Distribution Breakers which control electricity to each business or tennant. In the individual business or tennancy there are often sub panels which allow the local control of electric distribution. However if too much current is passed through a circuit the wire will heat up and may throw a breaker as resistance increases and a fault occurs. This may be quickly determined by laying a hand on the breakers. If one set is warm to the touch it is close to fault. Very likely the wire is too small.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Does a sub panel take away amp capacity from a main panel?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Aerobic fitness is defined as the capacity to take in, transport and utilize what substance?

Aerobic fitness is defined as the capacity to take in, transport, and utilize oxygen.


How many breakers in a 100 amp panel?

As many as there are spaces for. The physical amount of breakers that can be added to a load-center or for that matter an electrical panel is governed by the amount of slots that are available. This holds true no matter what the amp capacity of the unit is. What you don't want to do is, turn on more than 100amp worth of circuits at the same time! In other words if you have 200 circuits all hooked to the same 100amp box, all rated at 10amps each, you can only turn on 10 circuits at the same time without blowing the 100amp circuit breaker.


200 amp main and would like to add another 100 amp service in another room how can you do this?

If you are doing this you are effectively limiting your main panel to 100 A with normal duty cycles. This can get complicated and an electrician is advised. But basically you have a 100A breaker that would typically be for 220-240 volt service and you would connect to the main of the second panel. The size of the wire between the two panels would have to be sized correctly and you would only bond ground and neutral at the main panel and not the branch panel. You might want to move some of the loads from the main panel to the branch depending on load calculations. If you know what you are doing and have access to a clamp on amp meter you could measure how much of the 200 Amps you are using at the current panel. This can be dangerous, so get an electrician or be careful. <<>> In the trade this is called a sub panel. It is a complicated job in as much as you have to know wire sizes, ampacity of wires and proper electrical workmanship. Such a project should be left to a licensed electrical contractor to take out the proper permits and call for proper inspections. By taking this route it will leave you confident that if any mishaps happen to the installation down the road your insurance company will be behind you 100%.


How would you extend underground wire to your panel currently aluminum wire run to panel about 300ft I need to extend this to a new shop with a 100 amp panel 50 extra feet?

This is not a job for an amateur, but I will help you with some primary considerations. My answers are based on the United States' NEC (code) and do not take into consideration any local requirements. You do not want to extend your existing service conductors. You want to install a 100amp breaker into your existing panel and run conductors from there to your new panel. If this is a residential application you can run this with #4 copper conductors. If this is a commercial application you must run #3 copper conductors. I would answer this question based on what your shop is intended to do. If you are running professional equipment and are more or less "in business", use the commercial requirements. If you know how to properly ground a new service, and if your new panel has a main breaker, you can do what you need with 3 conductors. This will allow you to put neutral and ground conductors on the ground bar like you would in your primary panel. If you do not know how to properly ground a new service or doing so is not practical, you will need 4 conductors and your grounds and neutrals will have to be ISOLATED from each other in the new panel. Your neutral bar in this case would be insulated from the panel. In this case your new panel would become a sub-panel of the primary panel. Some panels do not have a main breaker and this is a critical consideration if you intend to wire it as a new service. Personally, I wouldn't install a panel without a main breaker whether or not it is a service or sub-panel.


Will concrete brick aluminum or copper take most energy to increase its temperature?

Whichever of them has the lowest specific heat capacity will take the least energy to raise its temperature, and whichever has the highest specific heat capacity will take the most energy.

Related questions

How long does it take to charge batteries with a solar panel?

No set answer to that. It depends on the capacity of the battery, the size and efficiency of the solar panel and the intensity of the sunlight.


How long does it take to charge 12V battery with 45watt solar panel?

That depends on the amp-hour capacity of the battery.


How do you take off the panel to get to the Radio on a 2001 Pathfinder?

Take a flat bladed screwdriver and carefully insert between the trim and the dash just above the clock. It will be stiff at first but if you work first at one side and then the other the panel will come away nicely. Once this panel is off you will see two screws holding the main front panel in place. Remove these and pull the panel toward you, from the top. the bottom half of the panel is held only by pressure clips. You can then access the mounting bracket screws for the radio and CD player.


How do you wire a garage sub panel box from a 100 amp breaker in the house main panel?

you propaly can't sub panel from 100 amp panel. Just not enough amperage to be worth while. i had to up grade t a 200 amp main first and then I was able to take a 60 sub panel from that.


Any details that take away from your main idea are called?

b


What is the main function of your lungs?

to take bad stuff away from the blood and replace it with oxygen


What is the main function of lungs?

to take bad stuff away from the blood and replace it with oxygen


How do you replace instrument panel lights?

you take apart the dash and get to the instrument panel. then you take the instrument panel out and on the back of the panel you'll will see the lights


How do you take take the door panel off a 1994 Hyundai Elantra?

My daughters 1999 had a problem with the power window. I removed all visible screw around panel, removed the window control panel by pressing in on the clips which are a part of the panel. Ascrew is located beneath this which needs to be removed. The door handle assembly on the inside has a screw and then the plastic assembly comes out with some keepers on the shaft which swing away and then the rod is lifted. At the bottom where the pocket is, there are 2 round serated panel holders up inside which need to be pried away from the body............Hope that this helps......howarddenton@hotmail.com


How do you take off door panel of impala?

Take off all the screws on the door panel.


Where is the flasher unit on a 1992 Chevy Lumina Euro?

Try above the brake peddle take off main dash panel. Its clipped up there


What is the function of your lungs?

the main function of our lungs in to take away carbon dioxide and refill the blood with oxygen