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Electric Motor Winding Materials Enameled Copper Wire
Magnet wire is used in windings of electric motors, transformers, inductors, generators, headphones, loudspeaker coils, hard drive head positioners, electromagnets, and other devices.
Electric motors convert electrical energy into mechanical motion, usually through the interaction of magnetic fields and current-carrying conductors. Electric motors are found in numerous diverse applications, such as fans, blowers, pumps, machines, household appliances, power tools, and disk drives. The very largest electric motors with ratings in the thousands of kilowatts are used in such applications as the propulsion of large ships. The smallest motors move the hands in electric wristwatches.
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Item
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Electric Motor Winding Materials Enameled Copper Wire
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| Key word | Electric Motor Winding Materials Enameled Copper Wire |
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Coating
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Polyurethane
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Thermal grade
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155
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Characteristics
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Technical requests
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Test Results
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Sample 1
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Sample 2
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Surface
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Good
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OK
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OK
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Bare Wire Diameter
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0.080±0.002
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0.45
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0.45
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Coating Thickness
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≥ 0.008 mm
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0.011
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0.012
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Overall Diameter
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≤ 0.094 mm
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0.091
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0.092
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Conductor Resistance
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≤ 3.608 Ω/m
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3.456
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3.443
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Elongation
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≥ 16 %
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19
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19
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Breakdown Voltage
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≥ 425 V
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1578
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1496
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Pinhole Test
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≤ 5 holes/5m
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0
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0
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Continuity
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≤ 40 holes/30m
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0
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0
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Test Items
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Technical Requests
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Results
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Adhesive
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Coating layer is good
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OK
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Cut-through
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200℃ 2minsno breakdown
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OK
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Heat Shock
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175±5℃/30minno crack
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OK
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Solder Ability
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390± 5℃ 2SecNo blister, no expansion, no shed
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OK
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