A 1500-square-foot house will have a 12 kW electric range; a 5 kW electric clothes dryer; eight individually controlled 2 kW, 240-volt electric baseboard heaters; a 9 kW-rated air conditioner; a 3 kW electric water heater; a 6.8-amp, 120-volt garbage disposal; and a 10-ampere, 120-volt freezer. Use the standard method to calculate the following: (Objective 6-3)

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter29: Service-entrance Calculations
Section: Chapter Questions
Problem 3R: a. What is the ampere rating of the circuits that are provided for the small-appliance loads? _____...
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A 1500-square-foot house will have a 12 kW electric range; a 5 kW electric clothes dryer; eight individually controlled 2 kW, 240-volt electric baseboard heaters; a 9 kW-rated air conditioner; a 3 kW electric water heater; a 6.8-amp, 120-volt garbage disposal; and a 10-ampere, 120-volt freezer. Use the standard method to calculate the following: (Objective 6-3)

 

  1. Minimum-size service entrance: ______ amp
  2. Minimum-size service conductors: ______ copper; ______ aluminum
  3. Minimum-size service neutral conductor: ______ copper; ______ aluminum
  4. Minimum-size grounding electrode conductor: ______ copper

     

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