red color electrical insulation pressboard

Number

  Index

Unit

 Standard

 Test Result

1

 Norminal thickness

mm

2

2.1

2

Norminal Grammage

g/cm³

1.1-1.25

1.14

3

Tensile Strength

MD

CD

MPa

≥105

≥80

119

89

4

Elongation

MD

CD

%

≥3.0

≥4.0

6.9

5.8

5

Breakdown Voltage

KV/mm

≥35

39.8

6

PH VALUE

/

6.0-6.9

8.0

7

Content of water

%

 5.0-6.0

5.6