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China Electrical Insulation Pressboard/Pre-Compressed Paperboard Manufacturer

China Electrical Insulation Pressboard/Pre-Compressed Paperboard Manufacturer

Product DescriptionDescriptionInsulation Pressboard is a special product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical pu…

Product Description

Description
Insulation Pressboard is a special product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, pressboard is excellently suited as an insulation material in electric machines, capacitors and oil-filled transformers. 100% wood or cotton thick board is characterized by its high density.

Application
Presspaper is used for electrical industrial board for motors, electric device, instruments, swith board, transformer for insulation and assembly pieces under 35kv. 100% wood or cotton thick board is characterized by its high density.
Good mechanical strength, low compression and high electric strength
Size: 0.8-4mmx1mx2m
Color: Brown, red
Package: Pallet
China Electrical Insulation Pressboard/Pre-Compressed Paperboard Manufacturer
 
Technical Data sheet
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