Suitable for the power cord produced in the extrusion process.

2 Requirements and methods for operator self-inspection items (including semi-finished products and finished products)

2.1 Power line conductor structure, surface quality

2.1.1 Requirements: The conductor structure and number should conform to the process regulations, the surface is smooth and clean, and there should be no defects such as warpage, oxidation, and oil stains.

2.1.2 Inspection method: Conductor structure and number are checked by reading, and surface quality is checked by visual inspection.

2.2 Outer diameter and eccentricity of power cord insulation

2.2.1 Requirements: The outer diameter of the insulation should meet the requirements of the process card, and there should be no obvious eccentric defects.

2.2.2 Inspection method: Every head in production should be inspected. The outer diameter of the insulation is measured with an outer diameter micrometer of 0-25mm and a scale of 0.01mm, and the eccentricity is carefully checked by visual inspection.

2.3 Surface quality of insulated wires

2.3.1 Requirements: The insulation should be squeezed and strong, smooth and round, uniform in color, free of particles on the surface, free of pores in the cross section, and severe in thickness.

2.3.2 Inspection method: Check carefully and carefully with the visual method.

2.4 Sheath size and eccentricity

2.4.1 Requirements: The outer dimensions of the sheath should meet the requirements of the process card, and there should be no obvious eccentric defects.

2.4.2 Inspection method: Every head in production should be inspected. The outer dimension is measured with an outer diameter micrometer of 0-25mm and a scale of 0.01mm, and the eccentricity is carefully checked by visual inspection.

2.5 Sheath surface quality

2.5.1 The sheath should be squeezed and strong, smooth and smooth, uniform in color, free of particles on the surface, no pores in the cross section, no serious thickness, and no serious twisting.

2.5.2 Inspection method: Check carefully and carefully by visual inspection.

2.6 Power cord plug printing

2.6.1 Requirements: The writing on the surface of the wire and cable must be legible.

2.6.2 Inspection method: Check carefully and carefully by visual inspection.

3 Requirements and methods of inspector inspection items (including semi-finished products and finished products) Power cord inspectors except 2.1 to 2.6 inspection.