QB/T 5246-2018Leather products - Test method of flexing resistance for belt (English PDF)

4.4.3 The retention force of the single-phase two-pole grounded socket in the integrated

AC power supply standard socket shall meet the requirements of Chapter 22 of GB/T

2099.1-2021.

4.4.4 The plug-in and plug-out life of the single-phase two-pole grounded socket in the integrated AC power supply standard socket shall meet the requirements of Chapter 21 of GB/T 2099.1-2021.

4.4.5 The integrated AC power supply standard socket shall be equipped with an AC type residual current circuit breaker or a related device that meets the AC type residual current protection function specified in GB/T 16916.1-2014.

4.4.6 The integrated AC power supply standard socket should be equipped with necessary anti-theft devices.

4.5 Installation and maintenance requirements

4.5.1 The integrated AC power supply standard socket can be used for floor-standing and wall-mounted installation.

4.5.2 All mechanical and electrical connections of the integrated AC power supply

standard socket shall be firm.

4.5.3 Integrated AC power supply standard sockets shall be easy to install and maintain.

4.6 Safety requirements

4.6.1 Protection against electric shock

Integrated AC power supply standard sockets shall meet the following requirements.

a) All high-voltage circuit parts shall meet the requirements of 5.1 personnel electric shock protection in GB 18384-2020.Class B live parts shall be arranged in the casing or behind the shield to prevent approaching the live parts from any direction;

b) The electric shock protection device shall meet the requirements of Chapter 10 of

GB/T 2099.1-2021 for protection against electric shock;

c) The degree of protection of all live parts shall at least meet the IPXXB level specified in GB/T 4208-2017;

d) The electrical clearance and creepage distance shall meet the requirements of

Chapter 8 of GB/T 7251.1-2013.When the altitude is greater than 2000 m, the electrical clearance and creepage distance shall meet the requirements of GB/T

16935.1.

4.6.2 Grounding safety

The integrated AC power supply standard socket shall meet the following requirements.

a) The grounding terminal in the integrated AC power supply standard socket shall meet the requirements of Chapter 11 Grounding measures in GB/T 2099.1-2021.

b) The exposed conductive parts of the integrated AC power supply standard socket, including the exposed conductive shielding and shell, shall be able to be grounded normally. The metal shell of the integrated AC power supply standard socket shall be provided with a grounding bolt. According to the test method a) in 5.2, its diameter shall not be less than 3 mm; there shall be a grounding mark. The door, cover or similar parts of the integrated AC power supply standard socket shall be connected to the main frame of the power supply standard socket with a protective conductor. According to the test method b) in 5.2, the result requires that the cross- sectional area of the protective conductor shall not be less than 1.5 mm2.

c) The resistance between any exposed conductive part of the integrated AC power supply standard socket that can be touched by a person and the ground shall not exceed 0.1 ohm; the measurement method shall be in accordance with the method c) in 5.2.

4.6.3 Linkage safety

Integrated AC power supply standard sockets shall meet the following requirements according to the test method of 5.3.

a) Integrated AC power supply standard sockets shall have the function of non- powered insertion and non-powered removal;

b) The socket has an error prevention function. Only a 10 A single-phase two-pole grounding plug that complies with the provisions of GB/T 1002-2021 can be normally connected. According to the test method of 5.3, other special-shaped conductors cannot be normally connected or are not powered after being connected.

4.6.4 General safety requirements

The integrated AC power supply standard socket shall meet the following requirements.

a) It shall have an overload protection function. According to the test method of 5.4.1, when the system has an output overload fault, the power supply standard socket shall be able to identify and cut off the AC output;

b) It shall have a short-circuit protection function. According to the test method of

5.4.2, the power supply standard socket shall cut off the AC output within the specified time after simulating a short-circuit fault; the socket shall not have any not be less than 5 Mohm.

4.10 Electromagnetic compatibility

4.10.1 Electrostatic discharge immunity

The immunity of the equipment housing port shall be measured according to the method specified in 5.7.1; it shall meet the requirements of performance criterion B in GB/T

18487.2-2017.

4.10.2 Radio frequency electromagnetic field radiation immunity

The immunity of the equipment housing port shall be measured according to the method specified in 5.7.2; it shall meet the requirements of performance criterion A in GB/T

18487.2-2017.

4.10.3 Immunity to electrical fast transient pulse groups

The equipment measured by the method specified in 5.7.3 shall meet the requirements of performance criterion B in GB/T 18487.2-2017.

4.10.4 Surge (shock) immunity

The equipment measured by the method specified in 5.7.4 shall meet the requirements of performance criterion B in GB/T 18487.2-2017.

4.10.5 Immunity to conducted disturbances induced by radio frequency fields

The equipment measured by the method specified in 5.7.5 shall meet the requirements of performance criterion A in GB/T 18487.2-2017.

4.10.6 Voltage sag and short interruption immunity

After the interruption of 40%, 70%, 80% of the rated voltage is tested according to the method specified in 5.7.6, the equipment shall meet the requirements of performance criterion B in GB/T 18487.2-2017.After the interruption of 0% of the rated voltage is tested according to the method specified in 5.7.6, the equipment shall meet the requirements of performance criterion C in GB/T 18487.2-2017.

4.10.7 Harmonic current emission limit

After the measurement according to the method specified in 5.7.7, it shall meet the requirements of the emission limit of Class A equipment less than 16 A specified in

GB/T 18487.2-2017.

4.10.8 Radio disturbance limit

After the measurement according to the method specified in 5.7.8, it shall meet the requirements of the radiated emission interference limit of Class A equipment specified in Chapter 4 of GB/T 9254.1-2021.

4.11 Flame retardant performance

The flame retardant performance of the non-metallic shell of the charging socket shall comply with the requirements of HB and above in GB/T 2408-2021.

4.12 Salt spray

4.12.1 The shell and bracket of the integrated AC power supply standard socket shall adopt double-layer anti-rust measures; the non-ferrous metal shell shall also have an anti-oxidation protective film or undergo anti-oxidation treatment.

4.12.2 Carry out a 48-hour salt spray cycle test according to the method specified in 5.8.

The charging socket installed outdoors requires a salt spray cycle test of no less than 96 hours. After the test, the integrated AC power supply standard socket shall have no rust, no blistering on the coating; it shall be able to work normally without functional and safety damage.

4.12.3 If there are printed circuit boards, connectors and other components in the integrated AC power supply standard socket, the salt spray corrosion resistance shall comply with the requirements of 7.3.2 in NB/T 33002-2018.

4.13 Weathering (xenon lamp)

Test according to the method specified in 5.9; select the total number of cycles based on the environment and service life. The indoor aging test time is not less than 100 hours; the outdoor aging test requires not less than 480 hours. The plastic parts and coatings of the integrated AC power supply standard socket shall not show abnormal appearance such as cracking and powdering.

4.14 Moisture resistance

After testing according to the method specified in 5.10, the insulation resistance and withstanding voltage tests of the integrated AC power supply standard socket shall meet the requirements of 4.9 and 4.8.1.

4.15 Metering function (optional function)

The power metering module shall meet the requirements of GB/T 28569.

5.1 Environmental requirements test

5.1.1 Low temperature test

5.4.1 Overload protection test

Connect the integrated AC power supply standard socket to the rated load through the mode 2 charging system specified in GB/T 18487.1-2023; set it to operate under the rated load state. Adjust the output current. When it exceeds the overload protection action value, check whether the power supply standard socket cuts off the AC output and issues an alarm.

5.4.2 Short-circuit protection test

Connect the integrated AC power supply standard socket to the rated load through the mode 2 charging system specified in GB/T 18487.1-2023; set it to operate under the rated load state. Simulate a short-circuit fault, to check whether the standard socket cuts off the AC output within the regulations and does not cause open flames, burning and other dangers.

5.4.3 Residual current protection test

The integrated AC power supply standard socket shall at least meet the action characteristic requirements of the AC type residual current operated circuit breaker in

GB/T 16916.1-2014.

5.4.4 Overtemperature protection test

Connect the integrated AC power supply standard socket to the test system; simulate the situation where the temperature of the temperature detection point of the integrated

AC power supply standard socket exceeds the set temperature protection value; detect whether the integrated AC power supply standard socket cuts off the AC power supply and can issue an alarm prompt.

5.5 Withstanding voltage test

5.5.1 Dielectric strength test

Apply 2000 V power frequency AC voltage between each non-electrically connected high-voltage circuit and between each independent live circuit and the ground (metal casing) for 1 min. Observe whether there is insulation breakdown and flashover during the test.

5.5.2 Impulse withstanding voltage test

Apply 3 short-term impulse voltages of positive and negative lightning waves between non-electrically connected high-voltage circuits and between independent live circuits and the ground (metal shell), with each interval not less than 5 s, impulse voltage 2.5 kV, pulse waveform 1.2/50 µs, power supply impedance 500 ohm; other circuits and exposed conductive parts are grounded during the test; no breakdown discharge shall occur at the test site.

5.6 Insulation resistance test

The insulation resistance test method of the integrated AC power supply standard socket shall be carried out in accordance with the requirements of 17.2 in GB/T 2099.1-2021.

5.7 Electromagnetic compatibility test

5.7.1 Electrostatic discharge immunity

The test shall be carried out in accordance with the electrostatic discharge immunity method specified in Tables 1 and 2 of GB/T 18487.2-2017.

5.7.2 RF electromagnetic field radiation immunity

The test shall be conducted according to the RF electromagnetic field radiation immunity test method specified in Table 1 and Table 2 of GB/T 18487.2-2017.

5.7.3 Electrical fast transient pulse group immunity

The test shall be conducted according to the electrical fast transient pulse group immunity test method specified in Table 1 and Table 2 of GB/T 18487.2-2017.

5.7.4 Surge (shock) immunity

The test shall be conducted according to the surge (shock) immunity test method specified in Table 1 and Table 2 of GB/T 18487.2-2017.

5.7.5 RF field induced conducted disturbance immunity

The test shall be conducted according to the RF field induced conducted disturbance immunity test method specified in Table 1 and Table 2 of GB/T 18487.2-2017.

5.7.6 Voltage sag and short interruption immunity

The test is carried out according to the voltage sag and short interruption immunity method, at 40% and 70% of the rated working voltage at the test level specified in Table

1 and Table 2 of GB/T 18487.2-2017.

5.7.7 Harmonic current emission limit

The test is carried out according to the harmonic current emission test method for Class

A equipment less than 16 A specified in 8.2.2 of GB/T 18487.2-2017.

5.7.8 Radio disturbance value

The test is carried out according to the requirements of Chapter 6 of GB/T 9254.1-2021.

5.8 Salt spray test

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