Ningbo Leadwin International Trade Co., Ltd.
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  • Contact Person : Mr. Feng Sunne
  • Company Name : Ningbo Leadwin International Trade Co., Ltd.
  • Tel : 86-574-88183823
  • Fax : 86-574-56664782,83030721 Address: 1-2F,Building 2 ,58 Feng Qi Road, Yinzhou Zip: 315100 Country/Region: China (Mainland) Province/State: Zhejiang City: Ningbo
  • Address : Zhejiang,Ningbo,1-2F,Building 2 ,58 Feng Qi Road, Yinzhou
  • Country/Region : China
  • Zip : 315100

3025 cotton sheet

3025 cotton sheet
Product Detailed
3025 cotton sheet 1.Include 3025A,3025B,3027,3028 2.Thickness: 0.5-120mm

  3025 cotton sheet

1. Description:   3025 cotton sheet  is made from cotton cloth impregnated with phenolic resin under pressure and heat. We can produce  3025,3026,CE,LE,C,L etc. With high mechanical strength and electrical properties

2.Specifications:

1) Thickness: 0.5-120mm2) Width x length: 980 x 1,980mm ± 10mm; 1,000 X2,000mm ± 10mm ; 1030X(2000-2300) ± 10mm , (980-1030)x(980-1500) ± 10mm

3)Models: 

Include 3025A,3025B,3027,3028

3.Color:black,brown

4. Applications:   it is used for the insulating spare parts of electrical appliances and transformers, textile machines, gears, fixed frames for bearings and noise reduction.

PropertiesUnitIndex ValueFact Value
3025B(7yarns)3025B(7yarns)
Densityg/cm31.30-1.451.43
Flexural strengthMPa≥3638
Tensile strengthMpa≥3437.5
Impact strength parallel to laminationsKJ/M2≥56.6
Dielectric strength perpendicular to laminate                     (in 90°C transformer oil)MV/m≥0.81.14(3mm)
Reference standardQ/SDJY112-2010
PropertiesUnitIndex ValueFact Value
3025A(10 yarns)3025A(10 yarns)
Densityg/cm31.30-1.451.43
Flexural strengthMPa≥9198
Tensile strength Mpa≥5557.5
Adhesive strengthN≥55006310
Impact strengthKJ/M2≥67.2
Martens temperature°C≥125126
Dielectric strength perpendicular to laminate (in 90°C transformer oil,)0.5-1mmkv/mm≥4.04.6
1.1-2mm≥3.03.8
2.1-3mm≥2.02.2
Reference standardQ/SSD001-2011
PropertiesUnitIndex ValueFact Value
3026(32 yarn)3026(32 yarn)
SurfaceThe surface is smooth, free of impurities and defects, allowing the minor abrasions
Densityg/cm31.30-1.401.38
Flexural strengthMPa≥110direction 122
cross 93.5
Maximum absorption rate%10.64(10mm)
Adhesive strengthN≥55007400
Impact strengthKJ/M2≥7.019.5
Dielectric strength perpendicular to laminate (in 90°C±2°C transformer oil, )MV/m≥0.58.5(3mm)
Breakdown voltage   Parallel to lamination (in 90°C±2°C transformer oil,)kv≥120.5(10mm)
Reference standardJB/T8149.2-2000

We can also offer  cotton cloth (21yarns,18yarns)impregnated with phenolic resin sheet

3025 cotton sheet



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