GB/T 18487.3-2001Electric vehicle conductive charging system AC/DC Electric vehicle charging station (English PDF)

4.1 A.C. charging station

A.C. electric vehicle charging station is all the equipment having special function of controlling charging and used for delivering A.C. power to the electric vehicle, which is installed in the same envelope.

A.C. electric vehicle charging station may be connected to the electric vehicle in three different connection modes.

4.2 D.C. charging station

Use supply wires and connectors to connect the charging station to the electric vehicle. The supply wires and connectors are permanently attached to the charging station in the connection mode C in GB/T 18487.1-2001.

6.1 A.C. voltage/current input

The recommended value of rated voltage and rated current shall be in accordance with the national standard.

6.2 D.C. voltage/current output

The maximum permissible values of rated output voltage and current are 1000V and 400A.

8.1 Control functions

For mode 3 charging, the electric vehicle charging station shall provide the control functions listed in 6.2 of GB/T 18487.1-2001

8.2 Safety connection check

Continuously check the earthing connection. Charging is permissible only when the electric vehicle is in intact and correct connection.

8.3 Emergency service

An emergency disconnection device shall be installed to isolate the A.C./D.C. electric vehicle charging station to turn off the A.C.

8.4 Permissible temperature

The maximum permissible surface temperature of parts of the A.C./D.C. electric vehicle charging station which are hand touched, at an ambient temperature of 40°C, shall be.

8.5 Charging station protection degree (IP)

8.6 Location of connectors

The lower part of the plug-socket installed (case A and B connections) shall be located at a height between 0.4 m and 1.5 m above the ground.

Connector sheath shall be provided if connection mode C is adopted. The riding position of the connectors after charging is finished shall meet the previous requirements. The D.C. electric vehicle charging station shall provide a method to indicate whether the connectors are in right position after disconnection.

8.7 Cable housing on the A.C./D.C. electric vehicle charging station

The A.C./D.C. electric vehicle charging station shall provide a method to store the cable correctly on the station after the disconnection.

8.8 Extension cable

The use of an extension cable is to prohibit use of any unsafe (risk of overload, absence of protective conductor, etc.) connected components between the electric vehicle and the electric vehicle charging station.

8.9 Metering

Metering (if necessary) shall be undertaken periodically to the charger and the associated tests shall be carried out in accordance with IEC 61036.

8.10 D.C. voltage/current output

For D.C. charging station, the subclauses about the D.C. output value shall be the acceptable comprehensive value of the D.C. charging station and the electric vehicle.

The relevant references may be found in GB 17478.

8.10.1 Rated output and maximal output power

The D.C. charging station shall be able to deliver D.C. voltage to the electric vehicle in the [permissible] voltage range and the [permissible] current range within the limit of its maximum power at an ambient temperature of 40°C.

8.10.2 Output voltage and current error

The error between the output voltage and current of the D.C. charging station, compared to the setting point sent by the electric vehicle shall not be greater than 1 % for the voltage and 5 % for the current.

8.10.3 Periodic and random deviation

The periodic and random error of the output current shall not be greater than 10 % peak-to-peak, within the range [Imin, Imax] of the D.C. charging station.

8.10.4 Turn on inrush current (A.C./D.C. side)

When turning on, the peak of the inrush current shall be limited within 10% of the maximum rated current of the charging station.

8.10.5 Transient process of turning off voltage

When the switch disconnects, the peak of the voltage shall not exceed 140% of the actual working voltage.

8.10.6 Response time to a setting point sent by the electric vehicle

The rise time of the outputs of the D.C. charging station to a step voltage signal (rise time between 10 % and 90 % of the setting point) sent by the vehicle, shall be less than 5s, with a unique overshoot less than 10 % during a few ms. The fall time to 0 A of the D.C. charging station shall be less than 50 ms after the D.C. charging station receives a shutdown order.

9.1 Protection against electric shock in case of a fault (non-contact)

RCD shall not be automatically reset. Manual reset may be accessible to the user.

Automatic reset of other personnel protection devices should comply with national regulations.

9.2 Earthing electrode and continuity between the exposed conductive parts

and the earthing circuit of the D.C.

9.3 Inspection of electrical continuity of the protective conductor of the

electric vehicle

In mode 3 charging, if the vehicle charging station detects failure in the electrical continuity of the protective conductor, the output of the electrical supply to the vehicle shall be switched off immediately.

10.1 Dielectric withstand characteristics

10.1.1 Dielectric strength

The dielectric withstand voltage at the frequency of 50 Hz shall be as follows.

10.1.3 Insulation resistance

The insulation resistance with a 500V D.C. voltage applied between all inputs/outputs connected together (power supply included) and the vehicle shall be.

10.2 Leakage current

The leakage current shall be measured (see Figure 1 and Figure 2), the station being supplied under 1.1 times the rated voltage after the damp heat test (see 11.1.4).

The value of the leak current shall not exceed that in Table 2.

10.3 Protective measures

The protective measures against overcurrent and overvoltage shall comply with the requirements of GB 16895.5 and IEC 60634-4-443.

10.4 Electric clearance and creepage distance

Electrical devices installed in the charging stations shall have electric clearances and creepage distances complying with those specified in relevant standards. For bare live conductors and terminations (e.g. bus bars, connections between apparatus) electric clearances and creepage distances shall be chosen in accordance with GB/T

16935.1.

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