Electrical System

Question 1

What is the voltage of the direct-current system supplied by the engine-driven alternator?

Answer 1

14 volts

This system is powered by a 60-amp alternator.

Question 2

What is the capacity of the battery located on the left side of the firewall?

Answer 2

12-volt, 25-amp hour

This battery provides power to the electrical system.

Question 3

What does the split bus bar supply power to?

Answer 3

• Electronic system circuits
• General electrical system circuits

Both sides of the bus are powered at all times except under specific conditions.

Question 4

When is the power contactor activated?

Answer 4

When an external power source is connected or the starter switch is turned on

This action opens the circuit to the electronic bus.

Question 5

What is the purpose of isolating the electronic circuits?

Answer 5

To prevent harmful transient voltages from damaging the transistors in the electronic equipment

This isolation is crucial for protecting sensitive electronic components.

Question 6

What are the 3 primary busses of the electrical system?

Answer 6

Alternate
Electronic
Primary