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Eletrician Insulating Paperboard

Eletrician insulating paperboard has good mechanical strength, high electrical strength, greater tightness, smaller shrinkage, good flatness, widely used in transformer, capacitor.

E-mail:yolo@ztaero.com

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Specification:

Charasteristic for eletrician insulating paperboard

Pressboard is made from 100% superior sulfate insulating wood pulp. It has good dielectric and high mechanical properties. 

Usage for eletrician insulating paperboard

Pressboard is widely used for transformers, high pressure electric apparatus, current transformers, switches, etc.

Technical parameters

Properties

Units  

 Values

 

 

≤1.6mm

>1.6-3.0mm

>3.0-6.0mm

Thickness Tolerance  

%

≤ ±7.5

≤ ±5.0

Density

g/cm3

1.0-1.2

Tensile Strength

 MD

 Mpa

≥80

≥80

≥80

 

TD

 

≥55

≥55

≥50

Elongation

 MD

 %

≥6.0

 

 TD

 

≥8.0

Shrinkage

 MD

%

<0.7

 

TD

 

<1.0

 

Thickness

 

<5.0

 Moisture Content

%

≤8.0

 Ash Content

%

≤1.0

 Electric Conductivity

Ms/m

≤8.0

 PH of Water Extractives

 

6.0-9.0

Electric breakdown Strength in oil

KV/mm

≥40

≥30

≥25

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