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Laminated Cardboard, Transformer High-Density Cardboard Manufacturers

Laminated Cardboard, Transformer High-Density Cardboard Manufacturers

This paper is allowed to exist for little Pinholes, Undispersed fiber bundles and Tiny defects if it doesnt effect to meet the safety requirements in the manufacturing and applications of transformers and cables.

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.
 
Laminated Cardboard, Transformer High-Density Cardboard Manufacturers

 

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Laminated Cardboard, Transformer High-Density Cardboard Manufacturers
Laminated Cardboard, Transformer High-Density Cardboard Manufacturers
Laminated Cardboard, Transformer High-Density Cardboard Manufacturers

 

Product Parameters
 
ItemsStandard IEC(641-3-1):1992
Thickness Deviation 5.0%
Density1.10 -1.25 g/cm3
Tensile strength MD105 N/mm2
Tensile Strength CMD 80 N/mm2
Shrinkage
MD
CMD
Perpendicular

≤ 0.5%
≤ 0.7%
≤ 5.0%
Elongation
MD
CMD

≥ 3.0%
≥ 4.0%
Ash Content 1.0%
PH Value of Aqueous Extract6 - 9
Oil Absorption 9%
Conductivity of Aqueous Extract≤ 5 mS/m
Electrical Strength in Oil
0.5mm -1.5mm
up 1.5mm -3.0mm

≥ 40KV/mm
 35 KV/mm
Moisture Content≤ 6 %


Laminated Cardboard, Transformer High-Density Cardboard Manufacturers