Testing Capability

All
No. Testing Object Item/ Parameter Testing Standard (Method)
No. Name
6Insulation and sheath material of cable and optical cable3Measurement for determining the density - Water absorption tests - Shrinkage testCommon test methods for insulating and sheathing materials of electric and optical cables - Part 13:Methods for general application - Measurement for determining the density - Water absorption tests - Shrinkage test GB/T 2951.13-2008IEC 60811-1-3:2001
4Hot set testCommon test methods for insulating and sheathing materials of electric and optical cables - Part 21:Methods specific to elastomeric compounds - Ozone resistance, hot set and mineral oil immersion tests GB/T 2951.21-2008
IEC 60811-2-1:2001
5Immersion in mineral oil testCommon test methods for insulating and sheathing materials of electric and optical cables - Part 21:Methods specific to elastomeric compounds - Ozone resistance, hot set and mineral oil immersion tests GB/T 2951.21-2008
IEC 60811-2-1:2001
6Pressure test at high temperature - Test for resistance to crackingCommon test methods for insulating and sheathing materials of electric and optical cables - Part 31:Methods specific to PVC compounds - Pressure test at high temperature - Test for resistance to cracking GB/T 2951.31-2008
IEC 60811-3-1:1985+A1:1994+A2:2001
7Weightlessness test--thermal stability testCommon test methods for insulating and sheathing materials of electric and optical cables - Part 32:Methods specific to PVC ompounds - Loss of mass test - Thermal stability test GB/T 2951.32-2008
IEC 60811-3-2:1985+A1:1993+A2:2003
8Carbon black contentCommon test methods for insulating and sheathing materials of electric and optical cables—Part 41:Methods specific to polyethylene and polypropylene compounds—Resistance to environmental stress cracking—Measurement of the melt flow index—Carbon black and/or mineral filler content measurement in polyethylene by direct combustion—Measurement of carbon black content by thermo gravimetric analysis(TGA)—Assessment of carbon black dispersion in polyethylene using a microscope GB/T 2951.41-2008IEC 60811-4-1:2004
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