Xuchang Rainyan insulation material co.,ltd

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4.green/blue/brown insulation paper 
Detail

.highly purified insulation paper
.stable electrical and chemical properties
.Good compatibility with liquid dielectric

1 Features

· Insulation class A (105 °C)

· Calendered presspaper, good forming properties, 100 % sulphate pulp

· Colour natural

· High purity and high oil-absorption

· Good compatibility with liquid dielectrics

· High electric dielectric strength

· Presspaper can be coated with baked enamel or laminated with Polyester Film

2 Applications

electrical insulation brown paper rolls is  appropriated  for  uses  as  electric  industrial  board  for  motors,  electric device, instruments, switch board, oil transformer for insulation and assembly pieces. 100%(sulfate wood pulp) thick board is characterized by its high density, good mechanical strength, low compression coefficient and high electric strength.

3 Available

Thickness: 0.10mm – 0.50mm

Both in roll and sheet are available

Width: 500mm – 1250mm

Special sizes are available on request

Different colours are available on request

Test project

Unit

AQL Value

Test Value

Test Mode

Thickness tolerance

%

±10

-1.6

JB/T8989.2-1999 IEC60641-2.1979

Density

g/cm3

1.00-1.20

1.08

Tensile strength

Length-wise

N/mm2

≥80

88

Cross-wise

≥40

43.6

Elongation

Length-wise

%

≥1.5

3.2

Cross-wise

≥7.0

7.4

Shinkage

Length-wise

%

≤1.0

0.92

Cross-wise

≤1.5

1.4

Thickness-wise

≤7.5

7.2

Ash content

%

≤1.0

0.63

PH Value of aqueous extract

6.0-9.0

7.1

Conductivity of aqueous extract

ms/m

≤8.0

4

Oil absorption

%

≥10

11.6

Electric strength in oil

KV/mm

≥55

66.9

Moisture

%

≤8.0

7.8