User's Manual

iSmartEV P03 User Manual
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III
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.
6. High voltage debugging must be carried out under the premise