1. Brief Introduction to IEC60851-3
IEC 60851-3 is Part 3 of the IEC 60851 series for test methods of winding wires, formally titled Winding wires – Test methods – Part 3: Mechanical properties. This standard specifies unified test procedures for mechanical properties of various enameled, fiber-wrapped and film-covered winding wires, covering five core tests: elongation, springiness, flexibility and adherence, resistance to abrasion, and heat bonding. Annexes provide reference schemes for friction testing. General terms and general test provisions shall comply with IEC 60851-1. Widely applied in factory inspection and type certification of winding wires for motors and transformers, it unifies global criteria for judging mechanical performance of winding wires.
2. Main Items of IEC60851-3
Clause No. | Pego Equipment |
Clause 4 Elongation | |
Clause 4.1 Elongation at fracture | |
Clause 4.2 Tensile strength Clause 6.6 Adherence test | Universal Testing Machine |
Clause 5 Springiness | |
Clause 5.2 Round wire with a nominal conductor diameter from 0.080mm up to and including 1.600mm | |
Clause 5.3 Round wire with a nominal conductor diameter over 1.600mm and rectangular wire | Auto Winding Wires Springiness Test Apparatus |
Clause 6 Test 8 Flexibility and adherence | |
Clause 6.2.1 Mandrel Winding test of Round Wire | |
Clause 6.2.2 Mandrel Winding test of Rectangular wire | |
Clause 6.4 Jerk test (applicable to enamelled round wire with a nominal conductor diameter up to and including 1.000mm) | |
Clause 6.5 Peel test (applicable to enamelled round wire with a nominal conductor diameter over 1.000mm) | |
Clause 7 Test 11: Resistance to abrasion (applicable to enamelled round wire) | |
Figure No. | |
Figure 1, figure 2 and table 1 | |
Figure 3 | Auto Winding Wires Springiness Test Apparatus |
Figure 4 | |
Figure 5 | |
Figure 6, 7 and 8 | |
Figure 9 | |
