GB/T 4074.4-2024 《Test methods of winding wires—Part 4: Chemical properties》 Related products

"GB/T 4074.4-2024 Winding Wire Test Methods, Part 4: Chemical Performance" is a Chinese national standard that specifies the test methods for the chemical performance of winding wires, including solvent resistance, refrigerant resistance, direct soldering resistance and transformer oil resistance. This standard is equivalent to IEC 60851-4:2016 international standard and is managed centrally by the National Wire and Cable Standardization Technical Committee. It is suitable for evaluating the chemical Stability and adaptability of winding wires. It is of great significance for quality control and product compliance in the Wire and cable industry.