- Contact Person : Mr. Zou Yongming
- Company Name : Changzhou Zhongli Copper Industry Co., Ltd.
- Tel : 0086-519-81165393
- Fax : 0086-518-81665385
- Address : Jiangsu,Changzhou,No.8, South Hehuan Road, Zhonglou Economic Development Zone,
- Country/Region : China
- Zip : 213023
Compound paper covered wire
Advantages:
1. High resistance to high voltage in oil transformer.
2. Rise up the filling coefficient of the transformer, reduce volume and the cost of the transformer
Application:
Winding of large and middle type transformer
Guarantee:
Implement whole production process monitoring and inspection.
Technique standard
Dimensions of conductor(mm) of per piece | 0.6≤a≤7.5 30≥b≥2 | |
Tolerance for Dimensions(mm) of per piece | a≤3.15 t=±0.02;a>3.15 t=±0.03 | |
b≤3.15 t=±0.02;3.15<b<12.5 t=±0.03; 30≥b≥12.5 t=±0.05 | ||
Fillet radius r and Tolerance t | a ≤1.00 r=a/2 | 1.00<a≤1.60r=0.65 |
1.60<a≤2.24r=0.65 | 2.24<a≤3.55r=0.8 | |
3.55<a a≤6.00 r=1 | 6.00<a≤7.10r=1.2 | |
wrapping method | according to customer's requirement | |
Resistivity | ≤0.017241 | |
Yielding strength of semi-hard wire | σ0.2=85-270 | |
elongation rate of semi-hard wire | >25% | |
elongation rate of soft state wire | >34% | |
Standard | GB/T7673.4-2008 | |
Insulation thickness Δ of compound wire and tolerance T | Δ≤0.6 T=±0.06 | 0.6<Δ≤0.9 T=±0.08 |
0.9<Δ≤1.5 T=±0.1 | Δ>1.5 T=±0.12 | |
Compound paper covered wire
