JT/T 1011-2015Routine Inspection Methods for Battery Electric Vehicle (English PDF)

4.1 When performing high-voltage circuit maintenance, the maintenance area

is isolated by the isolation bar, and the warning sign is hung.

4.2 Personnel performing high voltage circuit maintenance shall be qualified by professional training.

4.3 When performing high voltage circuit maintenance or high voltage system

insulation test, disconnect the high voltage circuit and connect it after the operation is completed.

capacitor bank

Cooling system

1) Check fan working conditions;

2) Check inlet hose conditions and fixing;

3) Clean dustproof net.

1) The fan shall work normally, no aging or damage;

2) The case inlet hose shall have no breaking, dents, the clamp shall be firm;

3) The dustproof net shall be clean, without impurities.

Pre-heat system

1) Check working conditions;

2) Check appearance.

1) The pre-heat system shall work normally;

2) The surface shall be clean, dry, intact, no damage.

Management system

1) Check the fixing of module plugin;

2) Check the system working conditions.

1) The module plugin shall be firmly plugged in, no corrosion;

2) The data display of management system shall be normal.

Low voltage electrical control system

Low voltage electrical controller

1) Check working conditions;

2) Check the fixing;

3) Clean with air gun or brush.

1) The controller shall work normally;

2) The controller shall be connected as specified, firmly installed;

3) The radiator, wire plug shall be clean, dry.

Cooling fan

1) Check the connection of wiring;

2) Check the fixing;

3) Clean the appearance.

1) The wiring plugin shall be well connected;

2) The fan body shall be firm;

3) The surface of fan shall maintain clean.

High voltage electrical control system

Drive motor

1) Clean the appearance;

2) Check the wiring connection;

3) Check the fixing;

4) Check the working conditions;

5) Check the cooling system.

1) The motor surface shall be clean, dry;

2) The wiring plugin shall be well connected;

3) The motor installation brackets and shock cushion shall be intact, firm;

4) When the motor is working, there shall be no abnormal vibration or noise;

5) The motor cooling system shall work normally, no leakage, with sufficient coolant.

Generator

1) Clean the appearance;

2) Check the wiring connection;

3) Check the fixing;

4) Check the working conditions;

1) The generator surface shall be clean, dry;

2) The wiring plugin shall be well connected;

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