Revised Standards for CCC Certification of Welding Machines in China
5. December 2024The newly revised welding machine standard, GB/T 15579.1-2024, now includes expanded provisions for certification under the China Compulsory Certification (CCC) system. Notable updates to the scope incorporate battery-powered arc welding machines, with specific requirements detailed in Appendix O. Terminological adjustments reflect advanced technologies, such as battery systems and energy efficiency, while environmental and insulation parameters now support operation at altitudes of up to 2000 meters. Adjustments to clearance and creepage distances ensure compliance with updated insulation configurations. Welding machines typically require CCC certification to be approved for import and sale in China.
The revised standard emphasizes stricter testing protocols and safety measures. It includes specific temperature ranges for heat tests, tighter tolerances for measurement devices, and revised criteria for continuity and load assessments. New safety provisions address insulation resistance, dielectric strength, and fault current measurements, allowing for linear interpolation to determine creepage distances and insulation voltage based on effective long-term values. Additional guidelines enhance the testing of contact currents and the safety of plasma cutting systems. Appendices M and N provide detailed procedures for efficiency and leakage current measurements, while Appendices K and O introduce configurations and safety protocols for battery-powered models. These revisions align Chinese standards with international norms, such as IEC, to ensure reliability and operational safety.
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