Researching possible configuration my new home for 320A service and need knowledge and assistance from the experts here. I have wire two of my previous houses, but the last one was about 7 years ago and both were 200A and much more simple in size and equipment than our current plans.
Info on new house: 3,100 Sq ft, All electric, 2 A/C units, heat pumps, 2ea double ovens 2 M/Ws, induction cooktop, elect H/W heater, elect dryer, oversized garage which will be sectioned off for partial use as workshop (woodworking equipment, welder, etc), planned Hot tub, planned Pool, and planned guest house with another garage, possible future water well.
Load calc says that I don't need the total 320A, however no one can predict the future and cheaper/easier to install now than retrofit later. We plan on retiring in the house and will spend roughly 40 to 60 years in it, so who knows what we will need 20 years from now and I would rather have the capability and not need it than need the capability and not have it. All surrounding houses are installed with 320A. Also, this is in the country and no permits required, but I do want to follow NEC.
Current plan is to install Milbank 320A meter base per Elect Co. specs and which will be purchased from them. Then install 2 SQ D QO142M200PC panels 35 feet from meter, each with surge protector. Then alternate placement of large draw items between the two panels. Ie, A/C unit #1 on panel 1 and A/C unit #2 on panel 2. I will install 12/2 20A for all standard outlet and 14/2 for all lights. Use GFCI in all required locations and/or AFCI in required locations. Have dedicated circuits for specific equipment such as fridge, 2nd fridge/freezer, comm closet, towel warmer, alarm system, electric fireplaces, etc.
My biggest concern is the prewire for future equipment, SPA, Pool, Guest House, water well.
I plan on installing 60A breaker, run wire and connect to Eaton CH60SPA panel mounted on back of house.
Repeat the same set up for Pool. Pool will have pump, heater, automatic cleaner, lights. Does 60A sound sufficient?
What is the proper set up for guest house? I know it needs to have it's own disco and panel, but since this is another "dwelling", I don't believe I can put 100A breaker in main panel, prewire to a 100A panel mounted to back of house and then run wire from this panel to guest house when built later. The SPA/Pool type set up is not allowed for this correct?
Info on new house: 3,100 Sq ft, All electric, 2 A/C units, heat pumps, 2ea double ovens 2 M/Ws, induction cooktop, elect H/W heater, elect dryer, oversized garage which will be sectioned off for partial use as workshop (woodworking equipment, welder, etc), planned Hot tub, planned Pool, and planned guest house with another garage, possible future water well.
Load calc says that I don't need the total 320A, however no one can predict the future and cheaper/easier to install now than retrofit later. We plan on retiring in the house and will spend roughly 40 to 60 years in it, so who knows what we will need 20 years from now and I would rather have the capability and not need it than need the capability and not have it. All surrounding houses are installed with 320A. Also, this is in the country and no permits required, but I do want to follow NEC.
Current plan is to install Milbank 320A meter base per Elect Co. specs and which will be purchased from them. Then install 2 SQ D QO142M200PC panels 35 feet from meter, each with surge protector. Then alternate placement of large draw items between the two panels. Ie, A/C unit #1 on panel 1 and A/C unit #2 on panel 2. I will install 12/2 20A for all standard outlet and 14/2 for all lights. Use GFCI in all required locations and/or AFCI in required locations. Have dedicated circuits for specific equipment such as fridge, 2nd fridge/freezer, comm closet, towel warmer, alarm system, electric fireplaces, etc.
My biggest concern is the prewire for future equipment, SPA, Pool, Guest House, water well.
I plan on installing 60A breaker, run wire and connect to Eaton CH60SPA panel mounted on back of house.
Repeat the same set up for Pool. Pool will have pump, heater, automatic cleaner, lights. Does 60A sound sufficient?
What is the proper set up for guest house? I know it needs to have it's own disco and panel, but since this is another "dwelling", I don't believe I can put 100A breaker in main panel, prewire to a 100A panel mounted to back of house and then run wire from this panel to guest house when built later. The SPA/Pool type set up is not allowed for this correct?
New Construction 400A service
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