iSmartEV P01 User Manual
II
To avoid personal injury, property damage, or accidental damage to the product,
please read all the information in this chapter before using the product.
Operation Specification For New Energy Vehicle Safety Maintenance
1. Identification of high voltage components: The orange wiring harnesses of the
vehicle are all high voltage wires.
2. High voltage parts: power battery pack, high voltage distribution box, on-board
charger, driving motor controller and DC-DC assembly, electric power assembly,
integrated compressor, PTC heater, maintenance switch.
3. When repairing the high voltage system, the power supply of the vehicle must
be OFF (and the vehicle is in the non-charging state), and remove the
maintenance switch; After the emergency maintenance switch is removed, it shall
be kept by full-time guardianship personnel, and ensure that no one will plug it in
during the maintenance process.
Notice: When the high voltage distribution box needs to be repaired or
replaced, remove the positive and negative high voltage connectors connected to
the battery pack carefully, and wrap the exposed wires with electrical tape to
avoid electric shock.
4. Five minutes after turning off the emergency maintenance switch, use a
multimeter to measure the high voltage circuit and ensure that there is no power
before checking and repairing the high voltage system.
4.1 Measure the voltage between the positive electrode of the battery pack and
the body to preliminarily determine whether there is electric leakage. If the voltage
is greater than or equal to 50V, it indicates that there is a leakage in the battery
pack. Stop the operation immediately.
4.2 When using a multimeter to measure high voltage, select the correct
measurement range. The accuracy level of the multimeter should not be lower
than 0.5, and the measurement range should not be less than or equal to 600V.
Please follow "One-hand Operation" principle;
4.3 One pen line of the multimeter is equipped with an insulated alligator clip (the
voltage is required to be 3KV; the overcurrent capacity is greater than 5A). During
measuring, clamp the clip to a terminal of the circuit first, and then connect the
other pen to the terminal to measure the reading. Only hold the pen with one hand
during each measurement; do not touch the metal part of the pen during
measurement.
5. The maintenance switch shall not be assembled during low-voltage debugging.
In high-voltage debugging, the full-time guardian shall instruct the assembly and
maintenance switch.
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