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6521 blue color fish paper 
Detail
Code: 6521 Series: paper
Spec: 0.125-0.35mm Material: paper
Color: blue Brand: fish paper

1.Product introduction
The insulation of 6521 polyester film insulating paper is a two-layer electrical insulation composite material, which is made up of 100% sulfate wood pulp fiber insulating paper and 6020 high temperature resistant electrical insulating polyester film.

2.Product characteristics
6520 polyester film insulating paper has higher mechanical strength and better dielectric properties.

3.Product usage
6520 polyester film insulating paper is used for slot insulation, cushion insulation and turn-to-turn insulation in stator windings of motor and electrical appliances. At the same time, it is also applied to interlayer insulation, end seal insulation and liner insulation of dry-type transformer.

Serial number

Index name

Unit

Index value

1

Standard thickness

mm

0.15

0.17

0.20

0.25

0.30

2

Allowable thickness deviation

mm

±0.0020

±0.0020

±0.030

±0.030

±0.030

3

Nominal quantitation and allowable deviation

g/m²

190±27

215±32

250±38

310±46

370±55

4

Film standard thickness

um

25

25

25

25

25

5

tensile strength

Longitudinal

Unbending

N/10mm

≥135

≥150

≥180

≥210

≥270

After bending

≥80

≥90

≥100

≥120

≥160

Transverse

Unbending

≥80

≥90

≥100

≥120

≥150

After bending

≥60

≥60

≥70

≥80

≥100

6

breakdown voltage, unbending

Unbending

KV

≥6.0

After bending

≥5.0

7

Normal caking property

Non stratification

8

Hot caking property

130±2 10min  no bubble, no glue

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