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Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer

Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer

Transformer electrical Pressboard/Pre-compressed BoardTransformer electrical Pressboard/Pre-compressed Board having characteristics of high mechanical strength, electrical strength

Product Description

 
Product Description

Transformer insulating Pressboard

1.The Insulation Transformer Pressboard is manufactured from 100% high quality sulfated insulating wood pulp. without sizing or used fillers. This paper is highly refinded and cleaned to ensure uniform thickness and formation. It is allowed to exist for little Pinholes, Undispersed fiber bundles and Tiny defects if it doesn't effect to meet the safety requirements in the manufacturing and applications of transformers and cables.
2.It is suited for making electromagnetic wire of transformers and other electrial insulating equipments Specification:
3.nominal thicknesses:1.0-8.0mm  
4.size:1000mmX2000mm   2000mmX4000m

Transformer electrical Pressboard/Pre-compressed Board  is made with high grade unbleached Sulphate wood pulp ,having characteristics of high mechanical strength, electrical strength, tensile strength, high elongation, low compressibility and proper bending resistance.
 
Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer

 

Detailed Photos
Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer
Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer
Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer

 

Product Parameters
 
NoIndex nameUnitIndex requirement
1Thicknessmm0.51.01.52.03.0
2Thickness tolerance%±7.5±5±5±5±5
3Apparent densityg/m21.00-1.25
4Tensile Strength(min)MDN/mm2>110
CDN/mm2>80
breadth:50

5ElongationMD%>7.0
CD%>9.0
breadth:50

6Shrinking rate (max)%length:1.0      breadth:4.0 Thickness:6.0
7Absorption of oil(min)%>10
8Electricity strengthIn airKV/mm≥10≥10≥10≥10≥10
In oil≥40≥30≥25≥25≥25±5±5±5
9Moisture content%≤8.0
10Ash Conent%≤1.0
Electrical Insulated Pressboard/ Presspaper/ Paperboard /Precompressed Board for Transformer