| reply to hdtvtechno22
Re: Anyone here a experienced knowledgeable electrican? electrican was here today
the main circuit breaker was burnt out. that was replaced with a new one same #100
and the wire was replaced from the circuit breaker to the meter.. |
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 Killa200Premium
join:2005-12-02
Southeast TN
 ·Charter
| reply to Speedy Petey
said by Speedy Petey:The sum of the breaker's ratings is a completely meaningless number. This is NO indication of actual or calculated load.
I'm aware of that, but in this case it IS actually helpful... in THIS case.
said by nunya:You can't judge a panel by adding up all the branch circuits.
Think about it, if I install a 225A (200A) lighting panel with 60 20A breakers, the sum total of the breakers would be 1200 Amps.
The size of the service (and main breaker) is determined by a load calculation. We can pretty much assume that most circuits in a building will not be at their full rating most of the time.
True, but what i was getting at is the sum of the branches, for once in a blue moon, was LESS than the panel main rating, making it fairly hard for a mains overload situation, as the entire array of branch circuits would have to be at max to do so. Therefore, i would start looking upstream at the main itself being faulty, or as you pointed out one of several issues with it's lugs. |
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Killa200Premium
join:2005-12-02
Southeast TN | reply to nunya
Remove, Double Post |
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 nunyaWho is John Galt?Premium,MVM
join:2000-12-23
O Fallon, MO
kudos:8 | reply to Killa200
I re-read your post and now I get what you were saying, sorry.
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...because I care. |
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Killa200Premium
join:2005-12-02
Southeast TN | Tis fine. If your having any weather like over here, its hot enough to not think about anything lol. |
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| reply to Killa200
said by Killa200:I'm aware of that, but in this case it IS actually helpful... in THIS case.
Sorry, but I don't agree at all, not even in THIS case. But that's OK.  |
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TheMGPremium
join:2007-09-04
Canada
kudos:1 | said by Speedy Petey:said by Killa200:I'm aware of that, but in this case it IS actually helpful... in THIS case.
Sorry, but I don't agree at all, not even in THIS case. But that's OK. I think what he was getting it is that since the sum of the branch circuit breakers in the panel pictured in this thread does not exceed the main breaker's rating, it would normally be very difficult if not impossible to trip the main breaker from a simple overload.
This is a rather rare situation. Most of the time, the sum of the branch circuit breaker ratings greatly exceeds the main breaker's rating. |
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| reply to hdtvtechno22
one of the electrican thinks to put in a increased 125amp main circuit breaker |
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nunyaWho is John Galt?Premium,MVM
join:2000-12-23
O Fallon, MO
kudos:8 Reviews:
·Charter
 ·surpasshosting
 ·voip.ms
| Upgrading the circuit breaker to 125A would require placing a new feeder cable and possible replacing all or part of the service equipment. The panel would also have to be 125A rated.
The only reason to do this is if the service is actually overloaded. We've already learned in this case there was another problem.
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...because I care. |
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| yeah they also said something about replacing the panel
when you say "feeder cable" is that the cable that comes from the power-company cable pole to the meter..?
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 SteveI know your IP addressConsultant
join:2001-03-10
Yorba Linda, CA
kudos:5 | reply to hdtvtechno22
Obviously you can tell that we do not, in fact, have any experienced knowledgeable electricians here  |
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 HallPremium,MVM
join:2000-04-28
Dayton, OH
kudos:2 | reply to hdtvtechno22
said by hdtvtechno22:one of the electrican thinks to put in a increased 125amp main circuit breaker But the other electrician determined the existing main breaker was at fault. Since it's been replaced, is the problem still occurring ? |
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| its all good now,, the circuit breaker doesnt get hot anymore..and the a/c stays on without problems!
glad that took care of it!
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mworks
join:2006-06-13
Faison, NC | Glad you got it worked out.
One thing that should be pointed out for anyone else reading is that if you are in a situation where the breaker is tripping a lot don't keep doing whatever it is that is tripping the breaker. Breakers are built pretty good but repeated tripping can lead to a condition where the breaker doesn't trip anymore, meaning you can overload the wiring and start a fire because the breaker remains in the on position due to excessive wear. |
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HallPremium,MVM
join:2000-04-28
Dayton, OH
kudos:2 | I would hope breakers were designed such that a component would wear out after so many trips and then not allow them to be switched back to the "on" position. It simply wouldn't lock when "on" anymore. No ? |
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 John GaltForward, MarchPremium
join:2004-09-30
Happy Camp
kudos:5 | reply to hdtvtechno22
In my experience, repeated tripping leads to a condition where the CB will not not stay latched in the ON position.
Of course, the failure modality of breakers varies with the manufacturer and the causative factors involved in its failure. |
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