INTRODUCTION TO EV SAFETY AND OVERVIEW
Generally, currents approaching ___ milliamps are lethal if they pass through sensitive portions of the body.
100
The charging port lid on the LEAF is located where?
At the front of the vehicle
Nissan's holistic approach to zero-emission, eco-friendly technologies includes which of the following?
Hybrid electric vehicles Clean diesel Research and investment in fuel cell technology
Which EV specialist level of authorization can work on electrical components that are powered off, such as the PDM and traction motor, but cannot shut off the HV system
Level 1
EV falls into which of these voltage categories?
Low range: From 120V to 1500V DC / From 50V to 1000V AC
Which of the following primary factors affect the severity of the shock a person receives when he or she is part of an electrical circuit?
Magnitude of energization Energization time Current path Type of power supply
Technician A says that when you are conducting an inspection or maintenance procedure unrelated to high-voltage circuits, such as the inspection of very low-voltage circuits of the headlamps or wipers, you should turn the power switch to OFF. Technician B says that when there is a risk of electric shock, such as during the removal and installation of the high-voltage battery, motor, inverter, DC-to-DC converter, AC compressor, or electric heater the high-voltage system must be shut off by a Level 2 EV Specialist.
Both technicians A and B
Express Service Technician's are authorized to do which of the following?
Clean the vehicle Connect the charging cable to the vehicle charging port Verify fluid levels
Nissan LEAF uses a nickel metal hydride (NiMH) battery that provides sufficient energy storage to address the majority of customer needs.
False
The Shop Foreman is authorized to work on energized electrical vehicles
False
A Level 2 Authorization is required to access live components in the transmission chain or repair the HV battery.
True
A ground wire installed between a high-voltage unit or component with leakage and the vehicle body will prevent a person from getting an electric shock.
True
Even when current leaks at two points of the vehicle body, with protection equipment it is possible to cut the electric path and prevent an electric shock.
True
Nissan LEAF owners will have the ability to use their mobile phones to set charging functions.
True
The Nissan LEAF is classified as a non-polluting, zero-emission vehicle.
True
Which technician is right? Technician A says that a person can get an electric shock when they are in direct contact with the positive and negative high-voltage battery terminals. Technician B says that a person can get an electric shock when they are in direct contact with the positive high-voltage battery terminal and another part of their body is touching any person or object that is not properly insulated. Technician C says that a person can get an electric shock when they are in direct contact with a high-voltage unit or component in which electricity leakage occurs.
Technician A Technician B Technician C
Which technician is right? Technician A says that Level 1 activities include diagnosing while the HV Transmission Chain is not energized. Technician B says that Level 1 activities include the removal and installation of HV components after the HV Transmission Chain is properly shut off for repairs Technician C says some Level 1 activities require a Level 2 technician to shut off the High Voltage system.
Technicians A, B, and C
Which EV component transforms the electrical energy into mechanical energy?
Traction motor
