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It's alwas better to install the 200 amp then the 100.You may not need the 200 right now , but down the line should you deceid to change it would cost you more.

2015-07-16 18:11:24
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What gauge wire is required for a 100A sub panel 84 feet from 200A main service?

NEC 310.16 #3 Thhn Copper


Considering 100A 240V service has 2 poles at 100A each is the total usable power actually 200A at 120V?

No, amperage is not additive, but a constant. Think of power as water, its always the same temperature, hot (amps). The pressure is variable (volts). The true answer is undoubtedly more complex, but you get the point. If you need to draw 200 amps you would actually need a 400 amp service because code states you cannot have more than an 80% load on a breaker That's an interesting question and I had to run the theory through my brain a few times to confirm my answer. The answer is if you have a 100A 240V service, you could draw what appears to be 200A from that panel at 120V. If you install 100A 120V single pole breakers on each side of the panel (in reality this would be many breakers but let's keep it simple) then both breakers will operate just fine, giving the appearance of 200A. In reality, however, one breaker actually feeds through to the other breaker. The neutral only carries the unbalanced load so in this hypothetical situation the neutral at the panel carries 0A. So the answer to the question is...if you install ONLY 120v single pole breakers, you can run up to 200A on those circuits (or 80% of that as we have discussed.) But you are only running 100A on each leg of the service conductors and breaker.


What gauge of cooper service wire for 200A service to meter box and service panel?

bed


What gauge wire is required for a 200A sub panel off of a 200A main service?

In copper 2/0 (2 Ought)


A 60 amp electrical service panel at a 2800 square foot home would be undersized?

If it was preinstalled, it may have been adequate at the time of installation. It depends on the power requirements of the home. If this is a new install, the NEC has a minimum of 100A for service equipment. To be honest, I would install 200A minimum to allow for future expansion.


What is the minimum size alluminum ground for a 200A service?

250 mcm


If your service cable coming to the meter says 600V 3cd on it is it 100 150 or 200A and would upgrading to 100A from 60A be good enough for a 2-story single family 7 room home?

In my experience it is best to upgrade to an 200 amp service. The cost difference is minimal and is a selling point for the future. This includes replacing the service cable and Meter Box.


What wire gauge for a sub panel 100a sub panel off a 200a sub panel?

A #3 copper wire insulation rating of 90 degree is rated at 105 amps.


What gauge wire is required for a 100A sub panel off of a 200A main service?

4 gauge AWG copper minimum. Use this:http://www.electrician.com/vd_calculator.htmlI found this invaluable when wiring our outbuildings. This one puts out the wire size:http://www.alternate-energy.net/voltlosscalc03.html


What size pipe and size aluminum wire are required for a 100A sub panel off a 200A main service?

A #1 aluminum wire with a insulation factor of 90 degrees C is rated at 105 amps. Three #1 wires can be installed into an 1 1/2" conduit.


How much does it cost to move an electricity meter?

The meter is typically installed in the main circuit panel of the house. If you want to move it, you can do it as part of a service / panel upgrade. We did this when we moved into our new house - we replaced the 1950s vintage main circuit panel and 100A service with a newer 200A panel and service. It was about a grand, but we didn't actually move the panel from where it was, so it may cost more for what you want.


Will a 15000 kw transformer power a 2500sqft house?

A 15000 KW transformer will power a small city! One KW is one thousand watts, so 15000 KW is 15,000,000 watts. The average 2500 ft2 house in the US uses somewhere between 24000 and 48000 watts maximum (thats a 100A or 200A service). Did you perhaps mean 15000 watts? That would correspond to a 60A service, which is pretty small. If you have gas appliances (stove, furnace, water heater, clothes dryer) and no big electrical appliances, such as an air conditioner, then maybe a 60A service would do. Most jurisdictions require a minimum 100A service these days except in unusual situations, such as mobile homes and such. A house that size should have a 200A 42 circuit panel. This relates to a 50Kva transformer


What are standard amp ratings for household appliances to know what size service panel to install?

A standard new installation panel these days is a 200 amp 42 circuit board. -- I am an Electrician. I'm not sure of your question. For most homes built in North America 100A (Amp) service panel is plenty big enough. If you are installing a garage with a work shop or other specialized higher power appliances you might want a 200A service panel. Just so you know that on a 100A service panel you could have a number of breakers that when you add the ratings for each breaker it adds up to more than 100Amps. This is normal as you never uses every circuit to its maximum rating at the same time. If you have electric heat, electric dryer, A/C, hot tub, pool, multiple TV's and a workshop with multiple piece of equipment running you might want to consider a 200A service panel.


Can you change 100 amp service to 200 amp service?

Home owner big jobYes but none of the equipment from the 100 amp service can be reused, it will be a total rebuild. 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%.Some 200A upgrades can be accomplished simply by making the existing service panel a subpanel of a new 200A main panel and adding as many more 100A subpanels as you may need in your installation. It is not very difficult but requires a licensed electrician to deal with the power-grid side of the connections to the new 200A drop.


Can you run a service line from your existing 200A service 150 feet to a 40A service in your barn?

As long as you do it according to local code, there's no electrical problem with it.


What size aluminum wire for a 220v 200a service in conduit undrreground at 180 ft?

250 MCM aluminum minimum


What gauge electrical wire is required to upgrade your electircal service to 200A if your incoming service is underground?

4/0 Aluminum or 2/0 Copper type USE.


What cause the Main Breaker trips when I start a 30KW 3-phase Motor(Star Delt Starter)?

The wiring is like this:[[30KW Motor ---- Star Delt Starter(100A Breaker inside) ----- 200A Breaker------50A Breaker(Inside the breaker box which located inside the factory) -----100A Main Breaker]]Once I try to start the Motor, the Main Breaker trips immediately.


Can a 15kw diesel generator support 200 amp service at 240 volts?

Need to know what voltage the generator is outputing. The maximum voltage a 15kW generator will support at 200A is dependent on service voltage and configuration, the rated generator voltage, the power factor and the load frequency. If this is a typical service to a residential unit, eg. 220V single phase, then the generator will not be able to safely support 200A.


Can a 200A 240V house panel be fed by number 2 conductors from a service entrance meter panel with 200A main breaker?

Absolutely not. #2awg conductors are only good for about 100 amps depending on Cu or al. see nec table 310-16.


Typical house amp ratings?

I've seen the service entering very old homes without updated wiring to be 120v/30A. This was in a very old home wired in 1946. Homes in the 60's were being wired 120V/240V with 100A-150A services. Homes in the late 70s and early 80s were being wired with 200A services. In a lot of cases, this was to accommodate the use of all-electric appliances, including baseboard heat and water heaters. A few months ago, I helped wire a house with 2-200A breaker panels, with a 100A sub-panel in the garage. I've also heard of new larger homes being wired for 400A, 800A, and more. The sky is definitely the limit. For branch circuits: the amp ratings are generally 15A, 20A, 30A, 40A, and 50A.


How many watts produced by a 200 amp service?

A typical 200 amp residential service carries 240 volts, and 200A x 240V = 48,000 watts (W= V x A).


What is the estimated cost of upgrading from 60A panel and replaced with a new 200A service?

Doing it yourself or hiring an electrician? Yourself: About $300. An Electrician: About $2000


How much will it cost to upgrade electricity from 100A to 200A?

Depending on where you are located, and the rise in the price of wire, the distance or the amount of wire needed also the how many breakers you need, A all around guess "two thousand dollars", that could go up or down without seeing anything. Also the labor rate is a big factor.


Is there a good formula to use when calculating a load for an 8-suite apartment building if the existing service is 200a and the landlord wants to upgrade each suite to a 100A main?

== == == == Multi-unit load calculation Use NEC Annex D.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.