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Phenolic paper laminated sheet
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Insulation parts
 
Beijing Found Mechanical & Electrical Co.,LTD.

Phone:+86-10-67572687
Fax:+86-10-67572689
E-Mail:steve@insulation-all.com
 
Epoxy phenolic glass cloth laminated sheet Your location:home > Products

  Epoxy phenolic glass cloth laminated sheet is made of alkali-free E-glass cloth impregnated with epoxy resins and phenolic resins by processing under heat and pressure. Epoxy glass cloth 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.

  3240 sheet: High mechanical and electrical applications, suitable for insulation structural parts of machinery and electric equipments under wet condition, available in transformer oil and humidity.
  3240B sheet and 3240C sheet are similar to 3240, but with lower properties.

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

No.

Item

Units

Value

3240

3240B

3240C

1

Applicable Standards

GB1303-77

QB

2

Density

g/cm3

1.70~1.90

1.80~2.00

1.80~2.00

3

Martens heat resistance ≥

200

200

200

4

Flexural strength perpendicular to laminations ≥

MPa

340

300

280

5

Bonding strength ≥

N

5600

5000

4800

6

Impact strength parallel to laminations( Charpy) ≥

kJ/m2

33

30

28

7

Loss factor (48-62Hz) ≤

0.05

8

Relative permittivity 48-62Hz ≤

5.5

9

Voltage endurance perpendicular to lamination,in oil 90±2℃ ≥
 Thickness:0.5~1mm
 Thickness:1.1~2mm
 Thickness:2.1~3mm

kV/mm


22
20
18




13.5




8.0

10

Voltage endurance parallel to lamination (in oil 90±2℃) ≥

kV

30

26

25

11

Insulation resistance after impregnated in water ≥

Ω

5×108

1×108

1×108

12

Temperature index

155

155

155


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Phone:+86-10-67572687 Fax:+86-10-67572689 E-Mail:steve@insulation-all.com