2. EXAMPLE ELECTRICAL DESIGN OF A SMALL OFFICE
In your packet there is a floor plan of a small building that shows all the electrical outlets needed for the function of the building.
The following demonstrates the progression of placing electrical apparatus in the plan, step by step, until all the necessary devices are distributed and divided into electrical circuits that comply with the electrical code. `

7. EXAMPLE PROBLEMS involving electrical connections.
ONE: 120/240 v delta
lighting circuits, each with connected load of 1800 watts, single pole. For each circuit find:
Quantity of wires_________________
Amperage of each circuit__________
Circuit breaker size in amps________
Size of wires (awg)_______________
2. One electric range outlet, 2 pole, with total load of 9,600 watts. Find:
Amperage of circuit_______________
Quantity of wires required__________
Size of wires required_____________

8. 3. Two pole outlet for water heater with heat element load of 27 amperes. Find:
Amperage of circuit_______________
Quantity of wires required__________
Size of wires required_____________
Circuit breaker size in amps________
4. A single phase 2 pole attic fan motor rated at 2 horsepower. Find:
Size of wires ____________________

9. PROBLEM TYPE B
A commercial building has a 120/240 volt, 3 phase, delta electrical system with the following outlets:
1. A 3 pole A/C compressor rated at 33 amperes. Find:
Amperage for the circuit___________
Quantity of wires required__________
Size of wires required_____________
Circuit breaker size in amps________
Size of conduit required___________
2. A 2 pole electric heater element with a connected load of 5600 watts. Find:

10. 3. If the total load for the electrical panel from all connected circuits amounts to 86,000 watts, find:
Amperage for the panel____________
Quantity of wires required__________
Size of wires required_____________
Circuit breaker size in amps________
Size of conduit required___________
Size of ground wire_______________

11. END OF DAY 15