Product Testing

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Flexible Solar Panel

Hot-spot endurance test

Test Requirements:

a) No evidence of major visual defects permitted, as defined in IEC 61215-1, particularly lookingfor signs of melted solder, openings in the enclosure, delaminations and burn spots. If there is evidence of serious damage that does not qualify as a major visual defect, repeat the test on two additional cells within the same module. If there is no visual damage around either of these two cells the module type passes the hot-spot test.

b) Verify that the module shows the electrical characteristics of a functional photovoltaic device. MQT 02 is not a pass/fail requirement (Gate) for power loss.

c) Insulation resistance shall meet the same requirements as for the initial measurements.

d) Wet leakage current shall meet the same requirements as for the initial measurements.

e) Any damage resulting from determining the worst case shading shall be noted in the test report.

The data shows:

The data of the sample in the insulation test of hot-spot endurance test:

Maximum system voltage(V): 1000

Preset voltage(V):3000

Test voltage(V) : 1000

Dimensions L×W(mm):1080×540

Measured value(MΩ) : 6.75×103

Module area (m2 ): 0.58

Product (MΩ·m2 ): 2.21×103

The data of the sample in the wet leakage current test of hot-spot endurance test:

Maximum system voltage(V): 1000

Test voltage(V) : 1000

Dimensions L×W(mm):1080×540

Solution resistivity(Ω·cm) :773

Solution temperature(°C):21.1

Preset voltage(V):3000 

Measured value(MΩ) : 3.81×103

Module area (m2 ): 0.58

Product (MΩ·m2 ): 3.92×103

Test Results:

The product has no abnormal withstand voltage situation in the insulation test and wet leakage current test. The product passes the hot-spot endurance test.

Thermal cycling test

Requirements:

a) No interruption of current flow during the test; in the case of a module with parallel circuits, a discontinuity in current flow indicates an interruption of flow in one of the parallel circuit.

b) No evidence of major visual defects, as defined in IEC 61215-1.

c) Wet leakage current shall meet the same requirements as for the initial measurements.

The data shows:

The data of the two samples in the thermal cycle test:

Maximum temperature(℃):+85±2

Minimum temperature(℃):-40±2

Total number of cycles : 200

No findings abnormal withstand voltage during the test.

Data of two samples in wet leakage current test of thermal cycle test

Maximum system voltage(V): 1000

Test voltage(V) : 1000

Solution resistivity(Ω·cm) :776

Solution temperature(°C):23.9

Dimensions L×W(mm):1080×540

Measured value(MΩ) : 9.00×103 / 7.87× 103

Module area (m2 ): 0.58

Product (MΩ·m2 ): 5.22×103 / 4.56×103 

Test Results:

The sample passed the thermal cycle test, and there was no abnormal phenomenon, which met the test requirements.

PID test

Requirements:

—Module temperature: 60 ℃±2 ℃

—Chamber relative humidity: 85% ±3% relative humidity.

—Dwell: 96 h at the above stated temperature and relative humidity (not including stabilization). —Voltage: module rated system voltage and polarities applied for above given dwell duration and during ramp down of temperature to ambient conditions.

Suggested common temperatures to use for the detection of PID in modules that do not display degradation at 60 ℃ or when further acceleration is sought are 65 ℃and 85 ℃.

Sample data of wet leakage current test of PID pre-test

Maximum system voltage(V): 1000

Test voltage (V) :1000

Solution resistivity(Ω·cm):1227

Solution temperature(°C):20.2

Dimensions(mm): 1080×540

Measured value(MΩ) : 4.56×103 / 3.77× 103

Module area (m2 ): 0.58

Product (MΩ·m2 ): 2.64×103 / 2.19×103

No findings abnormal withstand voltage during the test.

PID test environment:

Voltage(V):1000

dwell(h): 96

Temperature(℃):85±2

Relative humidity(% RH):85±3

No findings abnormal withstand voltage during the test.

Test Results:

The sample has no abnormal withstand voltage phenomenon and passes the PID test.

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Portable Solar Panel

Hi-power 4 * 100W dustproof experiment

Test conditions

Dustproof experiment on Hi-power 4*100W

Environmental conditions:

Temperature: 25 ℃, humidity: 66 % RH, normal atmospheric pressure.

Test based on standards:

IEC 60529:1989+A1:1999+A2:2013

Test arrangement:

Strictly according to the test requirements layout.

Sample condition:

The sample is in good condition before the test.

Test procedure

Prevent proximity hazard requirements

1.0mm diameter test metal wire shall not enter the shell and maintain sufficient clearance with the charged part.

Prevention of solid foreign matter in the test method

Test using dust box, talc powder should be filtered through a metal square hole sieve, wire diameter 50µm, sieve size of 75µm.

The amount of talcum powder is 2kg per cubic meter of test box volume, and the number of uses does not exceed 20 times.

The use of differential pressure to pump the air into the test equipment, pumping speed of fewer than 40 times the volume of the shell per hour.

Test time: 8h

Judgment requirements

After the test, check the sample, the test apparatus should not enter the shell phenomenon.

Test conclusion

Test metal wire and dust without entering the shell. hi-power 4 * 100W good dustproof effect. hi-power series of portable solar panels with good performance and quality.

Hi-power 4 * 100W waterproof experiment

Test conditions

According to the standard requirements for a Hi-power 4*100W waterproof test of IP67.

Environmental conditions:

Temperature: 25 ℃, humidity: 66 % RH, normal atmospheric pressure.

Test according to the standard:

IEC 60529:1989+A1:1999+A2:2013

Test arrangement:

Strictly according to the test requirements layout.

Sample condition:  

The sample is in good condition before the test.

Test procedure

The sample under test is fully immersed in water as specified. 

The height of less than 850mm shell of the lowest point, should be below the surface of the water 1000mm.

Height equal to or greater than 850mm of the highest point of the shell, should be lower than the water surface by 150mm.

Continuous test time: 30min.

Judgment requirements

After the test, check that the sample should be free of water.

If there is water ingress, it should not be enough to affect the normal operation of the equipment or damage security.

Conduct voltage resistance test.

Test conclusion

Solar panels only a tiny amount of water into the phenomenon. Does not affect the normal use of solar panels and power output.

Solar panels for voltage resistance test, there is no flying arc or breakdown phenomenon. The waterproof effect far exceeds the same type of products.

BXF-N-D-4 * 50W dust test

Test conditions

Dustproof test for BXF-N-D-4*50W.

Environmental conditions: 

Temperature: 25 ℃, humidity: 66 %RH, normal atmospheric pressure.

The test is based on the standard:

IEC 60529:1989+A1:1999+A2:2013

Test arrangement:

Strictly according to the test requirements layout.

Sample condition:

The sample is in good condition before the test.

Test procedure

Prevent proximity hazard requirements

1.0mm diameter test metal wire shall not enter the shell and maintain sufficient clearance with the live part.

Prevention of solid foreign matter in the test method

Test using dust box, talc powder should be filtered through a metal square hole sieve, wire diameter 50µm, sieve size of 75µm.

The amount of talcum powder is 2kg per cubic meter of test box volume, and the number of uses does not exceed 20 times.

The use of differential pressure to pump the air into the test equipment, pumping speed of fewer than 40 times the volume of the shell per hour.

Test time: 8h.

Judgment requirements

After the test, check the sample, the test apparatus should not enter the shell phenomenon.

Test conclusion

Test metal wire and dust no entry into the shell. BXF-N-D-4*50 good dustproof effect. Good performance and quality of BXF series portable solar panel.

BXF-N-D-4 * 50W waterproof experiment

Test conditions

Waterproof test of IP67 for BXF-N-D-4*50 according to the standard requirements.

Environmental conditions:

Temperature: 25 ℃, humidity: 66 %RH, normal atmospheric pressure.

Test according to standard: 

IEC 60529:1989+A1:1999+A2:2013

Test arrangement:

Strictly according to the test requirements layout.

Sample condition:

The sample is in good condition before the test.

Test procedure

The sample under test is fully immersed in water as specified.

The height of less than 850mm shell of the lowest point, should be below the water surface 1000mm.

Height equal to or greater than 850mm shell of the highest point, should be lower than the water surface by 150mm.

Continuous test time: 30min.

Judgment requirements

After the test, check that the sample should be free of water.

If there is water ingress, it should not be enough to affect the regular operation of the equipment or damage security.

Conduct voltage resistance test.

Test conclusion

Solar panels only a small amount of water into the phenomenon. Does not affect the normal use of solar panels and power output.

Solar panels for voltage resistance test, there is no flying arc or breakdown phenomenon. The waterproof effect far exceeds the same type of products.

SPC series portable solar panel impact test

Test conditions

Test the performance of SPC-TF series portable solar panels under standard test conditions. Subject the SPC-TF series charging pack to the iron ball drop impact test and view the test results.

Module temperature: 25℃

Irradiance: 1000W/m2

Sample data

SPC-TF series

Maximum power: 134.34 Pmax(W)

Open circuit voltage: 27.14 Voc(V)

Short-circuit current: 6.31 Isc(A)

Maximum power point voltage: 24.19 Vmp(V)

Maximum power point current: 5.55 Imp(A)

If the power drop is less than 3%, the test is passed.

Tested, solar cell breakage from EL is smaller and the power drop is 2.25%.

Test conclusion

SPC-TF series portable solar panel passed the iron ball drop impact test. The performance of the solar panel was not affected. Test results show that the solar module surface has a strong impact resistance.

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Flexible Solar Panel

SGM series IEC 61730 test

Test requirements

PV modules are suitable for operation at non-air-protected locations outside the country, exposed to direct and indirect (albedo) solar radiation, at an ambient temperature range of at least -40°C to +40°C, and up to 100% relative humidity and rain.

The product components are supplied without any operations that may affect compliance with IEC 61730 series requirements.

Integration of the PV module into the final assembly does not require any changes to the PV module from its originally evaluated form.

The continuity of the equipotential connection is not interrupted by the installation.

Any adjustable or removable structural members are provided with locking devices.

PV modules are free of accessible splinters, sharp edges, or sharp points.

Keep parts from loosening or turning.

Specific data

Internal wiring has sufficient current-carrying capacity for the application in question.

External wires and cables are adequate.

External DC connectors meet the requirements of IEC 62852.

The PV module junction box meets the requirements of IEC 62790.

Polymer front and back sheets meet the following requirements: thin layer insulation, for electrical insulation.

Heat-indexed backsheet: Adhesion strength to sealant or glass is appropriate.

The insulation barrier is fixed in place while maintaining its required electrical and mechanical properties.

The end connections are designed so that contact pressure is not transmitted through insulating materials other than ceramic, cloudy, or other suitable materials.

Terminations for electrical connections are suitable for the type and range of conductor cross-sectional area and meet the relevant requirements of IEC 62790.

Insulated terminals are designed to prevent gap and creepage distances from being reduced due to displacement.

Joints and connections are mechanically fastened and provide electrical continuity.

The thermal performance is adequate for the intended application.

The bypass diodes are rated to withstand the current and voltage for their intended use.

Mechanical connections are durable and can withstand the thermal, mechanical, and environmental stresses that occur during use.

Screws and mechanical connections are rated to withstand the mechanical stresses that occur during normal use.

Rivets used for electrical and mechanical connections are locked to prevent loosening.

The shape/compression/tight fit of metallic components not individually equipotential connected is electrically connected.

Requirements for bonding materials are met.

Other connections (e.g., welding or brazing) and the materials and processes used to create the connection are suitable for the application and intended use.

Other connections relied upon for equipotential connections meet the requirements of (MST 13).

Test Conclusion

SGM series solar panels meet all requirements and perform well.

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