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3241 Semiconductor Laminated Glassfiber Sheet

It adopt electrical non-alkali glassfiber cloth impregnated with epoxy resin and add conductive ingredients and then formed by baking.

Semiconductor laminated glassfiber sheet 3241

 

E-mail:jiangqian@ztaero.com


It adopt electrical non-alkali glassfiber cloth impregnated with epoxy resin and add conductive ingredients and then formed by baking. It is with high mechanical and semiconductor properties, good heat resistance, suitable for large motor slot wedge Anti-corona material. Heat resistance class is B.

Technical parameters

No.

Project

Unit

3021

3025

3025—A

3026

3027

3241

1

Appearance

Smooth surface, uniform color, no bubbles, no wrinkles, edge cutting neat, no stratification.

2

Density

g/m³

1.25~1.4

1.3~1.4

1.75-1.90

3

Vertical layer bending strength(normality)

MPa

≥120

≥100

≥90

≥110

≥125

≥300

4

Tensile strength

MPa

≥100

≥80

5

Parallel impact strength

(Simply supported beam)

KJ/m2

≥7.8

≥50

6

Parallel layer shear strength

MPa

≥10

≥25

≥25

≥20

≥25

≥30

7

Adhesive strength

N

≥3600

8

Electrical strength

Vertical layer(in 90℃transformer oil )( thickness 1mm )

Kv/mm

≥15.8

≥5.1

≥5.1

≥5.1

≥5.1

≥8.0

Parallel layer breakdown voltage(in 90℃transformer oil )

kv

≥35

≥20

≥35

9

Insulation resistance after water immersion

Ω

≥5*107

≥1.0*108

10

Dielectric constant(1MHz)

≤5.5

11

PTI

≥100

12

Water absorbing ( thickness 1-20mm)

mg

180~970

206~406

136~277

64-193