Suitable for 3C certified 227 IEC 02 (RV), 227 IEC 06 (RV), 227 IEC 08 (RV-90), 227IEC 52 (RVV), 227 IEC 53 (RVV) wire and cable power cords, VDE certified H03VVH2 -F, H03VV-F, H05VV-F, H05VVH2-F wire and cable, UL/CUL certified SPT, SJT, SVT, ST, XTW, CXTW, SRDT wire and cable, as the basis for manufacturing and inspection.
The number of single copper wires is allowed to be greater than the number listed in the table, and the nominal diameter of a single wire is determined according to the nominal cross-sectional area and the corresponding number of wires.
227 IEC02 (RV), 227 IEC06 (RV), 227 IEC08 (RV-90), 227 IEC52 (RVV), 227 IEC53 (RVV), H03VVH2-F, H03VV-F, H05VV-F, H05VVH2-F type wire and cable The average value of insulation thickness should not be less than the specified nominal value, and the thickness of the thinnest point should not be less than 90%-0.1mm of the nominal value. 227 IEC52 (RVV), 227 IEC53 (RVV), H03VVH2-F, H03VV-F, H05VV-F, H05VVH2-F type wire and cable sheath thickness average value should not be less than the specified nominal value, the thickness of the thinnest point Should not be less than 85%-0.1mm of the nominal value. The difference between the maximum outer diameter and the minimum outer diameter (f value) measured on the same section of the round sheathed cable shall not exceed 15% of the upper limit of the specified average outer diameter. Measure two places and take the largest difference.
The allowable diameter of copper single wire for stranding: 0.125~0.165mm for SPT-1, SPT-1W, SPT-2, SPT-2W type; 0.125~0.260mm for SPT-3 type 18~14AWG; SPT-3 type 12~10AWG It is 0.125~0.410mm. Exception: SPT-2 type in the reel wire "for general purpose extension cord assembly only" words, copper single wire diameter of 0.254mm is allowed. The SPT-1 type 20AWG flexible cord has only 2 cores, and should be marked with the words "Not for mass retailing" on the label of the reel.
Six Hazardous Substance Limits for PVC Materials for Electrical Wires:
Cadmium (Cd) and its compounds ≦100ppm
Lead (Pb) and its compounds ≦1000ppm
Hexavalent chromium (Cr6+) and its compounds ≦1000ppm
Mercury (Hg) and its compounds ≦1000ppm
Polybrominated biphenyl (PBBS) ≦1000ppm
Polybrominated diphenyl ether (PBDES) ≦1000ppm
Four Hazardous Substance Limits for Copper Wire for Electric Wires:
Cadmium (Cd) and its compounds ≦100ppm
Lead (Pb) and its compounds ≦1000ppm
Hexavalent chromium (Cr6+) and its compounds ≦1000ppm
Mercury (Hg) and its compounds ≤ 1000ppm For the PVC raw materials and parts required for the production of products, the quality control department shall verify the R o H S report of the supplier, or submit it to the testing center for inspection of harmful substances, and issue a test report to ensure the quality of the products. Department, as the basis for judging whether the environmental protection of the manufactured products is qualified or not. For packaging and other auxiliary materials, the supplier's R o H S report is verified by the quality control department and its compliance is confirmed.
The marks on the cord should include the following contents: certification mark (see picture), safety certification number, product standard, product model specification, manufacturer's name, and manufacturing year.
GB/T 2951.1 General Test Methods for Cable Insulation and Sheathing Materials-Part 1: General Test Methods: Section 1: Measurement of Thickness and Overall Dimensions-Mechanical Properties Test.
GB/T 2951.2 General Test Methods for Cable Insulation and Sheathing Materials: Part 1: General Test Methods Section 2: Thermal Aging Test Methods
GB/T2951.4 General Test Methods for Cable Insulation and Sheathing Materials Part 1: General Test Methods Section 4: Low-Temperature Test
GB/T 2951.6 General Test Methods for Cable Insulation and Sheathing Materials Part 3: Test Methods for PVC Mixtures Section 1: High-Temperature Pressure Test - Anti-cracking Test
GB/T 2951.7 General Test Methods for Cable Insulation and Sheathing Materials Part 3: Test Methods for PVC Mixtures Section 1: Weight Loss Test - Thermal Stability Test
GB5023.1 PVC insulated cables with rated voltages up to and including 450/750V - Part 1: General requirements
GB5023.2 PVC insulated cables with rated voltages up to and including 450/750V - Part 2: Test methods
GB/T18380.3 Wire and cable burning test method - Part 3: Cable burning test under flame conditions
IEC 60228 Conductors of cables IEC 60227-1 PVC insulated cables of rated voltages up to and including 450/750V Part 1: General requirements
IEC 60227-2 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V - Part 2: Test methods
The allowable diameter of a single copper wire for stranding is 0.125~0.165mm for SPT-1 and SPT-2; 0.125~0.260mm for 18~14AWG for SPT-3; 0.125~0.410mm for 12~10AWG for SPT-3. Exception: The SPT-2 type is marked with the words "General Purpose Extension Cord Assembly Only" on the plug of the reeled power cord, and the diameter of the copper single wire is allowed to use 0.254mm. The green wire shall be able to be separated between the two insulated circuit conductors in such a way that the green color is seen in the tear-off. The power cord should be marked with the English word "green conductor for grounding only" on the surface of the flexible cord of the plug cord.
