GB/T 7673.2-2008Paper covered wires - Part 2: Paper covered round wire (English PDF)

1 Scope

GB/T 7673 provisions of this part of the copper core and aluminum core wrapped round wire requirements. Suitable for oil-filled transformers and other electrical wire windings.

This section should be used in conjunction with the GB/T 7673.1.

Conductor nominal diameter range specified in this part is. (1.000 ~ 5.000) mm.

2 Normative references

The following documents contain provisions which, through GB/T reference in this 7673 constitute provisions of this part. For dated references,

All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encourage an agreement under this section

Parties to study the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 228 metal materials at room temperature tensile test method (eqv ISO 6892-1998)

GB/T 4074.2 Winding wires test methods - Part 2. Measure (GB/T 4074.2-1999, idt IEC 60851-2.1996)

GB/T 4074.3 Winding wires test methods - Part 3. Mechanical properties (GB/T 4074.3-1999, idt IEC 60851-3.1996)

GB/T 4074.5 Winding wires - Test methods - Part 5. Electrical properties (GB/T 4074.5-1999, idt IEC 60851-5.1996)

Part 1 GB/T 7673.1-2008 Paper covered wires. General

3 definitions, code, product representation, test methods and appearance General

Definition, code, product representation, test methods and appearance General shall comply with GB/T 7673.1-2008 in Chapter 3.

4 materials, insulation, wrapping, welding and size 4.1 Conductor material shall comply with GB/T 7673.1-2008 4.1 provisions round conductor nominal diameter deviation should comply with regulations in Table 1

GB/T 7673.1-2008 Appendix A requirements.

Table 1

Conductor diameter/mm

Nominal value Minimum Maximum mm

Copper conductor resistance at 20 °C / (ohm/m)

Minimum Maximum