Question

Make all the necessary calculations and draw the riser for a underground service for a 2800 square foot residence with the following appliances:

Dish Washer                1500 VA

Garbage Disposal      1200 VA

Refrigerator                1200 VA

Range                         8000 VA

Water Heater              4500 VA

Clothes Washer          1500 VA

Dryer                           6000 VA

From the obtained result, determine the size of:

The Feeder (Use THWN Conductors)

The Conduit (Use Rigid Metallic Conduit)

The Main Breaker

Draw the riser indicating the ground scheme and conductor size.

Assuming that one 6000 VA dryer is located in the building, where the temperature is 50°C (132°F), What will be the size of the THWN conductors feeding it?

Assume one 8 k-VA air conditioner. 
Justify all results. 

Answer 1