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SWG / AWG Submersible Winding Wire Enamelled Copper Wire for Motor Winding
In practice, maximum current density can vary from 2.5 A/mm2 for a wire isolated from free air to 6 A/mm2 for a wire in free air.If the wire is carrying high frequency currents (above 10 kHz), the skin effect may affect the distribution of the current across the section by concentrating the current on the surface of the conductor.
If active cooling is provided by blowing air or circulating water, then much higher current densities can be achieved - proportionally to the effectiveness of cooling.
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Item
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SWG / AWG Submersible Winding Wire Enamelled Copper Wire for Motor Winding
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| Key word | SWG / AWG Submersible Winding Wire Enamelled Copper Wire for Motor Winding |
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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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