Transformer insulation parts

Type

1.0mm

1.5mm

2.0mm

3.0mm

4.0mm

5.0mm

Thickness（mm）

1.02

1.51

2.01

3.03

4.01

5.03

 Density(g/cm³)

1.07

1.14

1.19

1.21

1.24

1.24

Tensile strength (Mpa)

Lengthways  

130.1

145.6

147.3

162.7

132.3

139.2

Widthways

85.4

89.1

87.4

101.2

118.8

104.5

Elongation (%)

Lengthways

4.4

4.6

4.5

4.4

5.9

5.5

Widthways

4.5

4.9

4.7

5.2

6.0

5.4

Shrinkage (%)

Lengthways

0.21

0.18

0.19

0.23

0.22

0.25

Widthways

0.24

0.26

0.26

0.26

0.29

0.31

Thickness ways

1.6

1.4

2.0

2.6

2.7

2.9

Compressibility (%)

9.1

8.4

6.1

5.5

4.1

4.3

Compression recoverability (%)

57

58

60

67

70

72

Ashes (%)

0.25

0.27

0.29

0.29

0.27

0.29

Oil absorbency (%)

14.8

14.1

13.7

12.9

11.43

10.21

PH

6.60

6.68

6.37

6.71

6.35

6.51

Conductivity (ms/m)

2.1

1.7

1.9

2.4

2.7

2.5

Electrical strength（KV/mm）

48.1

47.3

46.22

45.1

44.4

43.6

Moisture （%）

3.4

3.1

3.2

3.7

3.7

4.1

  Notes：all  confirm to standard GB/T19264.3-2003/ IEC60641－3-1:1992.B.3.1