NO

Properties

Units

Values

3025

3026

3027

3028

1

Apperance

——

Surface should be smooth, not allow any impurities and other obvious defects, end should be without any delamination and cracks. Allow a small amount of stain.

2

Density

g/cm3

1.30-1.42

1.30-1.42

1.30-1.42

1.30-1.42

3

Vertical bending strength

MPa

≥105

≥110

≥90

≥100

4

Tensile strength

MPa

≥65

≥85

≥60

≥80

5

Impact strength

(Charpy, notched, vertical)

KJ/m2

≥8.8

≥7.0

≥7.8

≥6.0

6

Adhesive strength

N

≥5400

——

——

——

7

Vertical electric intensity

(90 ± 2 ℃ transformer oil)

MV/ mΩ

≥2.0

≥1

——

——

8

Insulation resistance     (after immersion in water)

mg

≥1.0×106

≥1.0×106

≥5.0×107

≥5.0×107

9

Water absorption

KV

210-540

190-540

133-373

127-373

10

Parallel breakdown voltage

≥1

≥1

≥18

≥20

11

Temperature Index

≥120

≥120

≥120

≥120