EVITP EVITP Maintenance and Troubleshooting

Question 1

What is the first step when troubleshooting a non-functional EVSE that shows no power?

Accepted Answer

Check the circuit breaker and power supply

Answer

Verifying the circuit breaker and power supply status is the first diagnostic step for a non-functional EVSE.

Question 2

Which diagnostic tool is commonly used to test the continuity of EVSE wiring?

Accepted Answer

Multimeter

Answer

A multimeter is the standard tool for checking continuity, voltage, and resistance in EVSE wiring.

Question 3

How often should EVSE equipment undergo routine preventive maintenance inspections?

Accepted Answer

Annually

Answer

Annual preventive maintenance inspections help identify wear and potential issues before equipment failure occurs.

Question 4

What does a ground fault in an EVSE typically indicate?

Accepted Answer

An unintended path of current to ground

Answer

A ground fault indicates current is flowing along an unintended path to ground, which is a safety hazard requiring immediate attention.

Question 5

Which component in an EVSE is responsible for communicating charging status and current capacity to the vehicle?

Accepted Answer

The pilot circuit

Answer

The pilot circuit (Control Pilot) is the signal line that communicates charging state and current capacity between the EVSE and the vehicle.

(EVITP) Electric Vehicle Infrastructure Program Practice Test