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Beijing Found Mechanical & Electrical Co.,LTD.
Add:Room 218,Xingdongnan Mansion,No.2 Weizikeng Street, Fengtai District, Beijing, 100079,China.
Phone:+86-10-67688056
Fax:+86-10-67669046
E-Mail:steve@insulation-all.com
          steve@insulations.com.cn
 
Phenolic paper laminated sheets Your location:home > Products

  Phenolic paper laminated sheets(insulation sheet,industry laminate sheet,phenolic paper sheet) are made of electric insulating craft paper impregnated with phenolic resin by being processed under heat and pressure. Phenolic paper sheet Can be processed into all kinds of insulation parts, The products are widely used transformers, electric motors, cabinets, control boxes, electric switches, household appliances, railway, automobile, computer and medical appliance,etc.

  3020 sheet: suitable for using as insulation structural parts of machinery and electric equipments that require high electrical properties,available in transformer oil.
  3021 sheet:suitable for using as insulation structural parts of machinery and electric equipments that require high mechanical strength, available in transformer oil.
  3021B sheet, 3021C sheet are two derived types from 3021, with lower properties, and attractive price.
  3021TG sheet: primarily intended for mechanical applications and suitable as test board and jig.
  3022 sheet :good moisture resistance and are suitable for using as insulation structural parts of machinery and electric equipments under wet condition
  3023 sheet : lower loss factor and are suitable for using as insulation structural parts of wireless and electrical equipments.

  Nominal dimension:1020×2040mm, 1220×2440mm
  Thickness: 0.5 ~ 100mm

No.

Item

Units

Value

3020

3021

3021TG

3021B

3021C

3022

3023

1

Applicable Standards

 

GB1302-77

QB

JG1677-75

JB1678-75

2

Density

g/cm3

1.30~1.45

1.30~1.45

1.30~1.45

1.30~1.50

1.30~1.50

1.30~1.45

1.30~1.45

3

Thermal stability
 Thickness ≤20mm
 Thickness >20mm



125
100


115
90








125
100



4

Tensile strength ≥

MPa

78.4

88.2

78.4

78.4

5

Flexural strength ≥

MPa

98

117.6

120

90

90

117.6

6

Impact strength ≥

kJ/m2

12

15

12

7

Bonding strength ≥

N

3528

3136

3200

2940

2740

3528

8

Surface resistance ≥
 Under normal condition
 Impregnated in water


Ω












1.0×1011
1.0×108


1.0×1011
1.0×109

9

Specific volume resistance ≥
 Under normal condition
 Impregnated in water


Ω.cm














1.0×1012
1.0×109

10

Insulation resistance parallel to lamination ≥
 Under normal condition
 Impregnated in water

Ω


1.0×1010
1.0×108


1.0×109
1.0×107




1×109
1×106


1×109
1×106


1.0×1010
5.0×107


1.0×1011
5.0×107

11

Dielectric Loss Tangent,106Hz ≤
 Under normal condition
 Impregnated in water















0.045
0.060

12

Voltage endurance parallel to lamination (in oil 20±5℃), 5 minutes ≥

kV

16

14

12

10

14

13

Voltage endurance perpendicular to lamination (in oil 20±5℃) ≥
 Thickness:1.1~2mm
 Thickness 2.1~3mm
 Thickness 3mm

kV/mm


25
22
19
19


16
15
13
13







14



12


17
16
14
14


33.0
27.0
25.0
25.0

14

Temperature index

120

120

120

120

120

120

120


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Phone:+86-10-67688056 Fax:+86-10-67669046 E-Mail:steve@insulation-all.com  steve@insulations.com.cn