Properties

Unit

Grade

3240

Flexural strength

perpendicular to

laminations

≥

MPa

340

A: under normal

conditions

E-1/150: 150±5 °C

—

Impact Strength

parallel to

laminations

(Charpy)

≥

kJ/m2

33

Insulation

Resistance after

immersion in water (D-24/23)

≥

W

5.0×108

Dielectric strength

perpendicular to

laminations 

(in 90±2°C

transformer oil,

1 mm in thickness)

≥

kV/mm

14.2

Breakdown voltage

parallel to

laminations

(in 90±2°C

transformer oil)

≥ 

kV

35

Permittivity

(48-62Hz)

≤

—

5.5

Permittivity (1MHz)

≤

—

5.5

Dissipation factor (48-62Hz)

≤

—

0.04

Dissipation factor (1MHz)

≤

—

0.04

Water absorption

(D-24/23, 1.6mm in thickness)

≤

mg

19

Density

g/cm3

(1.70-1.90)

Flammability

Class

—

Color

—

Natural