GB/T 4910-2022 Tinned round copper wire
1 Scope
This document specifies the model, specification, material, diameter deviation, mechanical and electrical properties, coating, solderability, restricted substance requirements, acceptance rules, packaging and marking of tinned round copper wires.
This document is applicable to tinned round copper wires for the connection of electric wires, cables and electronic equipment, including tinned soft round copper wires, solderable tinned soft round copper wires and tinned hard round copper wires.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including all amendments) applies.
GB/T 728 Tin ingot
GB/T 2423.28-2005 Environmental testing for electric and electronic products - Part 2: Test methods - Test T: Soldering
GB/T 3048.2 Test methods for electrical properties of electric cables and wires - Part 2: Test of electrical resistivity of metallic materials
GB/T 3952 Copper drawing stock for electrical purpose
GB/T 4909.2 Test methods for bare wires - Part 2: Measurement of dimensions
GB/T 4909.3 Test methods for bare wires - Part 3: Tensile test
GB/T 4909.9-2009 Test methods for bare wires - Part 9: Test for continuity of coating - Sodium polysulfide solution method
GB/T 4909.10 Test methods for bare wires - Part 10: Test for continuity of coating - Ammonium persulphate solution method
GB/T 4909.11 Test methods for bare wires - Part 11: Test for adherence of coating
GB/T 4909.12 Test methods for bare wires - Part 12: Solderability test of coating - Solder globule method
GB/T 26125 Electrical and electronic products - Determination of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers)
GB/T 26572 Requirements of concentration limits for certain restricted substances in electrical and electronic products
3 Terms and definitions
No terms and definitions are specified in this document.
4 Product representation method
Contents
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Product representation method
5 Materials
6 Diameter deviation
7 Tensile strength and elongation
8 DC resistivity at 20℃
9 Coating
10 Solderability
11 Requirements for restricted substances
12 Acceptance rules
13 Packaging and marking
