High Quality Insulation Pressboard / Pre-Compressed Paperboard

• Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate
• Type: Insulation Sheet
• Chemistry: Organic Insulation
• Material: Paper
• Thermal Rating: A 105
• Maximum Voltage: >100KV
• Model NO.: KLY-ZB
• Classification: Organic Insulating Material
• Certification: ISO9001, IEC
• Color: Yellow
• Transport Package: Wooden Case
• Specification: 0.8-4mmx1mx2m
• Trademark: Kang Liyuan
• Origin: China Mainland
• HS Code: 4811900000
• Production Capacity: 20mt/Week

Product Description

Brief Introduction
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

 

Technical Data sheet

No

Index name

Unit

Index requirement

1

Thickness

mm

0.5

1.0

1.5

2.0

3.0

2

Thickness tolerance

%

±7.5

±5

±5

±5

±5

3

Apparent density

g/m2

1.00-1.25

4

Tensile Strength(min)

MD

N/mm2

>110

CD

N/mm2

>80 breadth:50

5

Elongation

MD

%

>7.0

CD

%

>9.0 breadth:50

6

Shrinking rate (max)

%

length:1.0      breadth:4.0 Thickness:6.0

7

Absorption of oil(min)

%

>10

8

Electricity strength

In air

KV/mm

≥10

≥10

≥10

≥10

≥10

In oil

≥40

≥30

≥25

≥25

≥25

±5

±5

±5

9

Moisture content

%

≤8.0

10

Ash Conent

%

≤1.0

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