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Testing Capability

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Photovoltaic products
No. Testing Object Item/ Parameter Testing Standard (Method)
No. Name
1PV grid-connected inverter1Contact currentMethods of measurement of touch current and protective conductor current GB/T 12113-2003 Figure 4
Technical specification of PV grid-connected inverter NB/T 32004-2018 11.2.2.3
2Impact tolerance voltageHigh-voltage test techniques for low-voltage equipment Part 1: Definitions,test and procedure requirements GB/T 17627.1-1998 6.1~6.2
Technical specification of PV grid-connected inverter NB/T 32004-2018 11.2.2.4.2
3Power frequency tolerance voltageTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.2.2.4.3
4Clearance and creepage distanceInsulation coordination for equipment within low-voltage systems - Part 1: Principles requirements and tests GB/T 16935.1-2008 6.2
Technical specification of PV grid-connected inverter NB/T 32004-2018 11.2.2.4.6
5Partial dischargeInsulation coordination for equipment within low-voltage systems - Part 1: Principles requirements and tests GB/T 16935.1-2008 appendix C
Technical specification of PV grid-connected inverter NB/T 32004-2018 11.2.2.4.7
6Glow wire Fire hazard testing for electric and electronic products—Part 11:Glowing/hot-wire based test methods—Glow-wire flammability test method for end-products(GWEPT) GB/T 5169.11-2017
Technical specification of PV grid-connected inverter NB/T 32004-2018 11.2.4.1
7square array insulation impedanceTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.2.6
8residual current in square matrixTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.2.7
9Automatic switch machineTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.3.1
10Maximum conversion efficiencyTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.4.3.1
11MPPT efficiencyTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.4.3.2
12Inversion efficiencyTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.4.3.3
13Weighted total efficiencyTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.4.3.4
14Harmonic and waveform distortionTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.4.4.1.1
15Power factorTechnical specification of PV grid-connected inverter NB/T 32004-2018 11.4.4.1.2
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