3240

Epoxy phenol aldehyde cloth board series  
3240 epoxy phenol aldehyde glass cloth laminated board GB/T1303.1 - 1998
 
1 .Define and purpose
This laminated product is formed through heat pressing after electric industry alkali glass cloth dips into the epoxy phenolic resin. It has high mechanic and dielectric performance, applicable as insulation structural components for electromechanical/electrical equipment, as well as used under damp environmental conditions and in oil of transformer.
 
2.Technical requirement
2.1 The outside appears tidy and smooth, not allow any bubble, impurity or other evident defect, but slight scratch is allowed. Edge is to be cut tidy and the end surface is not allowed to have any delamination and/or crackle.
2.2 Main performance index:
 
Table 1 :Performance index  

资源猫app Order

资源猫app Item name

资源猫app Unit

Test method

Index

1

Density

g/cm3

GB/T5130 section 8.1

(1.70-1.90)

资源猫app 2

Water absorption

mg

资源猫app GB/T5130 section 8.2

资源猫app Refer to table 2

资源猫app 3

资源猫app Vertical layer direction bending strength

MPa

资源猫app GB/T5130 section 5.1

>= 340

4

Vertical layer direction compression strength

MPa

GB/T5130 section 5.3

资源猫app >= (350)

5

Tensile strength

资源猫app MPa

GB/T5130 section 5.7

>= (300)

6

资源猫app Compact strength (Simply strut-beam method)

KJ/m3

GB/T5130 section 5.5.1

>= 33

7

Insulation resistance after water dipping

资源猫app Ω

GB/T5130 section 6.3

>= 5.0 × 108

8

资源猫app Mediate loss factor, 1MHz hour

____

GB/T5130 section 6.2

资源猫app <= 0.04

资源猫app 9

资源猫app Dielectric constant, 1MHz hour

资源猫app ____

资源猫app GB/T5130 section 6.2

资源猫app <= 5.5

10

Vertical layer direction electric strength at (90±2)℃ transformer oil

资源猫app KV/mm

GB/T5130 section 6.1

Refer to table 3

资源猫app 11

资源猫app Parallel layer direction striking voltage

kV

资源猫app GB/T5130 section 6.1

>= 35

 
Table 2 : Water absorption  

资源猫app Average hickness mm

Water absorption mg

Average thickness mm

Water absorption mg

Average thickness mm

Water absorption mg

0.4

<= 17

2.0

<= 20

10

资源猫app <= 34

资源猫app 0.5

资源猫app <= 17

2.5

<= 21

资源猫app 12

资源猫app <= 38

0.6

<= 17

3

资源猫app <= 22

14

<= 41

资源猫app 0.8

资源猫app <= 18

资源猫app 4

<= 23

资源猫app 16

<= 46

1.0

<= 18

5

<= 25

20

<= 52

1.2

资源猫app <= 18

6

<= 27

资源猫app 25

资源猫app <= 61

资源猫app 1.6

资源猫app <= 19

8

资源猫app <= 31

资源猫app Single side processing to 22.5

资源猫app <= 73

 
Table 3 : Electric strength  

Average thickness mm

资源猫app Average strength kV/mm

资源猫app Average thickness mm

资源猫app Electric strength kV/mm

资源猫app Average thickness mm

Electric strength kV/mm

0.4

资源猫app >= 16.9

1.0

资源猫app >= 14.2

资源猫app 2.2

资源猫app >= 11.4

资源猫app 0.5

>= 16.1

资源猫app 1.2

>= 13.7

资源猫app 2.4

>= 11.1

0.6

>= 15.6

1.4

资源猫app >= 13.2

资源猫app 2.5

>= 10.9

资源猫app 0.7

资源猫app >= 15.2

资源猫app 1.6

>= 12.7

2.6

资源猫app >= 10.8

资源猫app 0.8

资源猫app >= 14.8

1.8

资源猫app >= 12.2

2.8

资源猫app >= 10.5

0.9

>= 14.5

资源猫app 2.0

>= 11.8

资源猫app 3.0

资源猫app >= 10.2

 
Note: the above product is in conformity with UL with yellow card certificate No. E117719.
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