Zeke
Well-known member
Maybe he's calling it a duplex. 
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Service drop amps
- Thread starter paulmars
- Start date
If the apartment is properly seperated from the house it shouldn't be a problem. That 2nd service generally requires a second (different) address. Like 12345A and 12345B.you have 2 services for 1 building? oooofff
A 26a kiln will require a 40 amp ckt. A kiln is considered a continuous load.House and attached apartment. House built that way.
Yes i want to bdl ck on what was done in 2012 when the fuse boxes were upgraded to breaker boxes.
Yes im thinking of adding a 26a kiln. I might put it on the dryer 30a breaker witha switch so only one can be operated at a time, but not sure i need too.
just did two residential load calculations on the house, not apartment
https://www.ladbs.org/docs/default-...lation-form-in-form-00.pdf?sfvrsn=1ca8e453_20
says 106 amps
Electrical Load Calculations for Residential Service Panel - Online Load Calculator
says 119 amps
https://www.ladbs.org/docs/default-...lation-form-in-form-00.pdf?sfvrsn=1ca8e453_20
says 106 amps
Electrical Load Calculations for Residential Service Panel - Online Load Calculator
says 119 amps
Many homes don't run anywhere near the rating of the service or load calcs. It is common for 4 homes each with 200a services to be fed from a single 25 KVA transformer, which means 104A split between them. My home runs on the order of 8A unless ac or pool pump kicks on.
The size of the service is more important in an all electric powered home vs. one with fuel sources.
If you are all electric: dryer, range, hot water, ac/heat and all were to turn on at same, then this could be the closest you ever come to tripping a 100a main. The reality is, all of those won't be in use at the same time, much less turn at the same time. The rating of their circuits does not mean they each draw that amount.
Add the 40a kiln ckt. If there is a voltage dip when running it and another large load (ac, dryer, etc), call POCO and indicate you're getting lower voltage and need them to come out and check connections, etc. This could trigger the service lateral getting upsized. (from the pole to mast).
The size of the service is more important in an all electric powered home vs. one with fuel sources.
If you are all electric: dryer, range, hot water, ac/heat and all were to turn on at same, then this could be the closest you ever come to tripping a 100a main. The reality is, all of those won't be in use at the same time, much less turn at the same time. The rating of their circuits does not mean they each draw that amount.
Add the 40a kiln ckt. If there is a voltage dip when running it and another large load (ac, dryer, etc), call POCO and indicate you're getting lower voltage and need them to come out and check connections, etc. This could trigger the service lateral getting upsized. (from the pole to mast).
Lots of red flags, fuse boxes upgraded got me. If I had to speculate, I'd guess he rents out the attached apartment, that's why there is a 2nd meter. I'm wondering how old this place is if it had fuse boxes, those went out of fashion in what, the 60s...50s? I have the house Dad built in 71 and it has a square D breaker box like one we'd buy today. Good news is back then they probably used big pure copper wire. I don't know, I'm only 51. He may have a legitimate concern if this place is really old.you have 2 services for 1 building? oooofff
is the Range gas or electric, what about water heaters and furnace. You have central AC? Try to figure out if you have a lot of high load appliances and use your kiln smartly.
wyliesdiesels
Well-known member
Yup
We have a 50KvA ****** powering at least 6 homes
We have a 50KvA ****** powering at least 6 homes
yep. When I bought this house, we had the service upgraded from 100A to 200a. Utility declined to replace the #6 aluminum triplex, so I have goofy looking 6 to 4/0 splices at the weather head. linesman who put the seal on the meter said "if they burn up, we'll replace them. " Their engineers do the calculations based on the square footage of hte house, modified by knowing if you have unusual loads. my house didn't get any bigger, so there's no change in calculated demand. (and probably no real change, either. My peak is probably higher, but average is lower.)On the utility side they don't really care what size your main breaker is. They size stuff to the actual load. They know a residential 200A service will use less than 60A 99% of the time.
Had electrician here giving quote.he said my meter drops were 2/0 and capable of 1000amps. He also said id need a 2nd mast for the 2nd meter and 2 meter boxes. Another electrician said need to replace my mast with 2.5" dia. And that we cant use two meter boxes w\one mast,code requires 1 dbl ganged. 3rd quote said two boxes from single mast is fine with a trough.
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