Implementation standard of welding wire front end

1, the appearance is standard, and the wiring nose should be clean. No obvious scratches, cracks and corrosion.

2, size standard, the size of the wiring nose must conform to the relevant national standards.

3. Electrical performance. The electrical performance of the wiring nose should meet the relevant national standards, including the rated current, voltage, contact resistance and other indicators, and must be verified by electrical tests.

4, environmental protection requirements, wiring nose must comply with the relevant national environmental standards, should not use substances harmful to the environment, such as lead.