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Old 01-09-2010, 02:43 PM   #1
 
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How to tell how big my panel is???


Hello All,

I have been looking at my girlfriends parents service panel, for the last 30 minutes or so and trying to tell how many amps it is.

I am pretty confident that it is a 200 amp because on the door there is a printer paper and it says "device ....200 amps..." something along those lines.

My question is, is there a way to confidently figure out how much amperage I have at the panel.

Can I add up all the circuits, and do some equation??

Its a 3100 sq ft two story house with electric oven, electric dryer and a lot of lights etc. - If that helps anyone figure it out or judge.

Would a picture help anyone???

My other question/problem trying to solve is is the panel big enough or have enough room to run a 60 amp sub panel about 125 feet away to a future 16 x 20 detached garage.

Thanks everyone in advance.
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Old 01-09-2010, 02:47 PM   #2
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Most likely, due to the size (square footage) of that house, you have a 200 Amp panel.

A picture posted here would be nice. Look carefully at the main breaker handle. The Amps should be molded into the handle either on the face, or the side.
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Old 01-09-2010, 02:56 PM   #3
 
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When working with the main the power will always be on unless turned off at the street so be carefull
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Old 01-09-2010, 02:56 PM   #4
 
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Thanks for the advice, I will try and get a picture up.

When you say look for the engrave you are referring to the main switcher breaker correct?

The problem I may have is the fact that the main switch breaker some how got sprayed a few years ago when the house got painted.

Thanks again.
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Old 01-09-2010, 02:58 PM   #5
 
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Quote:
Originally Posted by thevoz View Post
When working with the main the power will always be on unless turned off at the street so be carefull
Great advice.

Realistically when this goes on in the future I will be subbing out a lot of if not all the electrical work. Just trying to learn, but at least would want to hire an electrician to help mentor through the project.
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Old 01-09-2010, 03:58 PM   #6
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Quote:
Originally Posted by kbsparky View Post
Most likely, due to the size (square footage) of that house, you have a 200 Amp panel.
Can you post a general formula or rule of thumb for this or collection of cases, for those houses that have no main breaker?

Putting aside demand factor, can you say that it is at least the sum of all breakers larger than 20A?
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Old 01-09-2010, 03:59 PM   #7
 
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Quote:
Originally Posted by thevoz View Post
When working with the main the power will always be on unless turned off at the street so be carefull
I responded about this earlier, but thinking about it leads me to a second question.

Can anyone turn the power of the street, anyone being not the power company and someone at the house?

if you ever need it shut off at the street should you have you power company do it or any advice for things about this???
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Old 01-09-2010, 04:10 PM   #8
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In some cases their is a Main shut-off outside that shuts off power to the breaker panel
In most cases you need to have the POCO shut off power to the house
If a new meter etc are being run they disconnect at the pole usually

You are not allowed to pull the meter to disconnect power

You can't just add up the breakers to determine size of service
With subs I have over 1200a of breakers on a 200a service



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Old 01-09-2010, 04:15 PM   #9
 
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Quote:
Originally Posted by Scuba_Dave View Post
In some cases their is a Main shut-off outside that shuts off power to the breaker panel
In most cases you need to have the POCO shut off power to the house
If a new meter etc are being run they disconnect at the pole usually

You are not allowed to pull the meter to disconnect power

You can't just add up the breakers to determine size of service
With subs I have over 1200a of breakers on a 200a service
Thank you for the information.

When you say "subs" is that sub panels???

What doess POCO stand for?
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Old 01-09-2010, 04:16 PM   #10
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Sub = sub-panel

POCO = Power Co



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Old 01-09-2010, 05:29 PM   #11
 
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Quote:
Originally Posted by Scuba_Dave View Post
Sub = sub-panel

POCO = Power Co
Thanks for the knowledge
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Old 01-11-2010, 02:02 PM   #12
 
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The start of the pictures

Hello all, I took lots of pictures, sorry they are not edited yet. I am on a work computer and we do all the editing on my girl friends mac, I am having a tough time finding the picture manger on this hp to crop and resize them.

Will try and get them done this evening and back up.

Trying to determine the size of the panel, pretty confident it is a 200 amp service

Thanks everyone, hope this helps.

Mike
Attached Thumbnails
How to tell how big my panel is???-img_0880.jpg   How to tell how big my panel is???-img_0881.jpg   How to tell how big my panel is???-img_0882.jpg   How to tell how big my panel is???-img_0883.jpg   How to tell how big my panel is???-img_0884.jpg  


Last edited by canyonbc; 01-11-2010 at 02:17 PM.
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Old 01-11-2010, 02:06 PM   #13
 
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Continued...
Attached Thumbnails
How to tell how big my panel is???-img_0884.jpg   How to tell how big my panel is???-img_0885.jpg   How to tell how big my panel is???-img_0886.jpg   How to tell how big my panel is???-img_0887.jpg   How to tell how big my panel is???-img_0888.jpg  

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Old 01-11-2010, 02:10 PM   #14
 
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More...sorry they are not edited.
Attached Thumbnails
How to tell how big my panel is???-img_0889.jpg   How to tell how big my panel is???-img_0890.jpg   How to tell how big my panel is???-img_0891.jpg   How to tell how big my panel is???-img_0892.jpg   How to tell how big my panel is???-img_0893.jpg  

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Old 01-11-2010, 02:15 PM   #15
 
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Almost to the end of them.
Attached Thumbnails
How to tell how big my panel is???-img_0893.jpg   How to tell how big my panel is???-img_0894.jpg   How to tell how big my panel is???-img_0895.jpg   How to tell how big my panel is???-img_0896.jpg   How to tell how big my panel is???-img_0897.jpg  

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