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Old 03-05-2014, 09:57 AM   #1
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What Amp Service Can I Expect?


Hello,

I am trying to find out what the possible maximum amp service is with my current residential configuration. The associated power company is notorious for poor customer service and I have already gotten conflicting answers from them. To complicate matters, I have an unusual service feed that has already been discussed here (with photo):

Help Understanding "Farm Generator System”...

Briefly, I have SIX 2 gauge wires coming from the meter. FOUR of them feed into a 200 amp breaker on one set of bus bars, then to the rest of the home. TWO wires feed directly to another set of bus bars and previously there was just a 50 amp well equipment sub-panel on that pair.

Why am I asking? There have been some voltage spike issues in the neighborhood and my goal is to install a whole-house surge protector (yup, that is a whole other debate). Rearranging all circuits downstream of just one of the bus bar pairs would make that easier and more efficient. However, I don't want to reduce my growth options if my service is capable of more than 200 amps.


Peace,
Dr. Z.

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Old 03-05-2014, 10:19 AM   #2
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What Amp Service Can I Expect?


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Hello,

I don't want to reduce my growth options if my service is capable of more than 200 amps.

Peace,
Dr. Z.
There should be no reason to need more than a 200 amp service for a residential application

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Old 03-05-2014, 10:20 AM   #3
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What Amp Service Can I Expect?


Thanks for your opinion, really, but that still doesn't answer my question...
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Old 03-05-2014, 10:26 AM   #4
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Thanks for your opinion, really, but that still doesn't answer my question...
A liscensed electrician will be around soon...
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Old 03-05-2014, 10:36 AM   #5
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What Amp Service Can I Expect?


This won't answer your question either but why do you need whole house surge protection? It seems like it would be simpler and cheaper to just protect the devices that are vulnerable to surges.
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Old 03-05-2014, 10:46 AM   #6
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This won't answer your question either but why do you need whole house surge protection? It seems like it would be simpler and cheaper to just protect the devices that are vulnerable to surges.
HA, like I mentioned, whole-house surge protection is a completely other debate. The short answer is I was given a brand new Leviton unit and might as well install it:

http://www.leviton.com/OA_HTML/Produ...minisite=10251

Yes, I also have surge protection on the more expensive/sensitive equipment in my home.
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Old 03-05-2014, 10:48 AM   #7
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What Amp Service Can I Expect?


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This won't answer your question either but why do you need whole house surge protection? It seems like it would be simpler and cheaper to just protect the devices that are vulnerable to surges.
Not necessarily, good quality surgs protectors can be expensive and whole house models have come down in price. It is still recomended to have a surge protector at each outlet with somwthing you want to protect though, even with whole house protection.
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Old 03-05-2014, 12:05 PM   #8
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What Amp Service Can I Expect?


Update:

I was finally able to reconstruct the severely faded specifications decal of my utility feed panel (HA, nothing like digital imaging forensics) and now see that the maximum rating of the equipment is 200 amps. So, my question is now mute because it wouldn't make any difference if I could get more amp service. All of my circuits are now downstream of one bus bar pair and the whole-house surge protector will soon be installed.

Regardless, maybe this post will help others if someone qualified would like to answer...


Peace,
Dr. Z.

Last edited by Zeigh; 03-05-2014 at 12:09 PM.
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Old 03-05-2014, 02:14 PM   #9
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What Amp Service Can I Expect?


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There should be no reason to need more than a 200 amp service for a residential application
Unless you have grow lights....... lol

Want to upgrade home from 200A to 400A service
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Old 03-05-2014, 03:31 PM   #10
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What Amp Service Can I Expect?


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There should be no reason to need more than a 200 amp service for a residential application
Then I guess the 800A service on the last residential project I worked on as a construction manager was unnecessary? I could have sworn that those 12 HVAC units, 4 pool pumps, and 3 kitchens required it.
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Old 03-05-2014, 04:35 PM   #11
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Wow, who lived in that residence, Bill Gates?
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Old 03-05-2014, 05:17 PM   #12
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Then I guess the 800A service on the last residential project I worked on as a construction manager was unnecessary? I could have sworn that those 12 HVAC units, 4 pool pumps, and 3 kitchens required it.
Is this for an apartment complex or something? Im talking about a house
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Old 03-05-2014, 06:25 PM   #13
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Is this for an apartment complex or something? Im talking about a house
You are clueless, I do 320/400 amp services all the time. Anything around 8000k sq ft. requires this type of service if not bigger, especially with geo thermal with electric heat as backup.
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Old 03-05-2014, 06:30 PM   #14
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You are clueless, I do 320/400 amp services all the time. Anything around 8000k sq ft. requires this type of service if not bigger, especially with geo thermal with electric heat as backup.
8k or 8000k?
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Old 03-05-2014, 07:01 PM   #15
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8k.... Oops.

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