| Customization: | Available |
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| Insulation Level: | A |
| Brand: | Windoo |
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When the dry-type transformer is in operation, the insulation paper of paper covered copper wire can isolate the conductors with different potentials, withstand the working voltage between the windings, prevent short-circuits and discharges from occurring, and ensure the electrical safety of the transformer. For example, in dry-type transformers of 10kV and below, paper covered copper wire insulation paper can ensure that the winding does not have insulation breakdown problems under normal operating voltage.
Insulation reliability: high quality insulation paper has good electrical strength and stability, can withstand temperature, humidity and other environmental factors in the long-term operation of dry-type transformers and the role of electrical stress, to maintain insulation performance, reduce the risk of failure due to insulation aging.
| Conduct Diameter/mm | f/mm | Copper Conductor Resistance(at 20ºC) Ω/m |
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| Standard | Min | Max | Min | Max | |
| 1.000 | 0.990 | 1.010 | 0.010 | 0.02116 | 0.02240 |
| 1.060 | 1.049 | 1.071 | 0.011 | 0.01881 | 0.01995 |
| 1.120 | 1.109 | 1.131 | 0.011 | 0.01687 | 0.01785 |
| 1.180 | 1.168 | 1.192 | 0.012 | 0.01519 | 0.01609 |
| 1.250 | 1.237 | 1.263 | 0.013 | 0.01353 | 0.01435 |
| 1.320 | 1.307 | 1.333 | 0.013 | 0.01214 | 0.01285 |
| 1.400 | 1.386 | 1.414 | 0.014 | 0.01079 | 0.01143 |
| 1.500 | 1.485 | 1.515 | 0.015 | 0.009402 | 0.009955 |
| 1.600 | 1.584 | 1.616 | 0.016 | 0.008237 | 0.008749 |
| 1.700 | 1.683 | 1.717 | 0.017 | 0.007320 | 0.007750 |
| 1.800 | 1.782 | 1.818 | 0.018 | 0.006529 | 0.006913 |
| 1.900 | 1.881 | 1.919 | 0.019 | 0.005860 | 0.006204 |
| 2.000 | 1.980 | 2.020 | 0.020 | 0.005289 | 0.005600 |
| 1.120 | 2.099 | 2.141 | 0.021 | 0.004708 | 0.004983 |
| 2.240 | 2.218 | 2.262 | 0.022 | 0.004218 | 0.004462 |
| 2.360 | 2.336 | 2.384 | 0.024 | 0.003797 | 0.004023 |
| 2.500 | 2.475 | 2.525 | 0.025 | 0.003385 | 0.003584 |
| 2.650 | 2.623 | 2.677 | 0.027 | 0.003014 | 0.003190 |
| 2.800 | 2.772 | 2.828 | 0.028 | 0.002698 | 0.002857 |
| 3.000 | 2.970 | 3.030 | 0.030 | 0.002351 | 0.002488 |
| 3.150 | 3.118 | 3.182 | 0.032 | 0.002131 | 0.002258 |
| 3.350 | 3.316 | 3.384 | 0.034 | 0.001885 | 0.001996 |
| 3.550 | 3.514 | 3.586 | 0.036 | 0.001678 | 0.001778 |
| 3.750 | 3.712 | 3.788 | 0.038 | 0.001504 | 0.001593 |
| 4.000 | 3.960 | 4.040 | 0.040 | 0.001322 | 0.001400 |
| 4.250 | 4.207 | 4.293 | 0.043 | 0.001171 | 0.001240 |
| 4.500 | 4.455 | 4.545 | 0.045 | 0.001045 | 0.001106 |
| 4.750 | 4.702 | 4.798 | 0.048 | 0.0009375 | 0.0009928 |
| 5.000 | 4.950 | 5.050 | 0.050 | 0.0008462 | 0.0008958 |
Paper covered flat copper wire
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