Thickness: 1mm-60mm
Length: 1020*2020mm,1220*2440mm,1020*1220mm.
Color: Brown
Definition and application:
3021 phenolic paper laminated sheet produced by our company has good quality and competitive price, at the leading level of domestic insulation materials industry.
3021 phenolic paper laminated sheet is made up of paper impregnated with phenolic resin by baking and heat pressing. This product applies to components in insulation system of motor, electrical equipment which has high requirement on mechanical property and also applies to transformer oil. It is usually used in low-voltage apparatus, such as base board of distribution cabinet.
Physical, mechanical and dielectric properties
NO.
|
Item
|
Unit
|
Index value
|
1
|
Density
|
g/cm3
|
1.45
|
2
|
Thermostability: 20mm or below
20mm or above
|
℃
|
115
90
|
3
|
Bending strength(3mm or above)
|
Mpa
|
≥117.6
|
4
|
Tensile strength
|
Mpa
|
≥90
|
5
|
Adhesive strength
|
N
|
≥3136
|
6
|
Impact-resistance strength
|
KJ/㎡
|
≥15
|
7
|
Parallel insulation resistance:normal
after becoming damp
|
KΩ
|
≥1.0×103
≥1.0×101
|
8
|
Vertical dielectric strength: withstand voltage for 5 minutes in transformer oil,1mm.
|
MV/m
|
≥16
|
9
|
Parallel breakdown voltage:withstand voltage for 5 minutes in transformer oil. Temperature 20℃±5℃.
|
KV
|
≥14
|