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3240 Epoxy Phenolic Glass Cloth Laminated Sheet

It is laminated by pressing plate machine with alkali-free glass cloth impregnated by epoxy resin and phenolic resin. Its heat-resistant is Class B(130℃) ,and it widely apply to transformer, motor, control box and so on with good dielectric properties, mechanical properties and wet resistant properties. We can also produce all kinds of insulating parts with epoxy phenolic glass cloth laminated sheet as customer’s requirement.

Epoxy phenolic glass cloth laminated sheet

 

No Item Unit Value
3240 3240B 3240C
1 Sandard GB1303-77 QB
2 Density g/cm3 1.7-1.9 1.8-2.0 1.8-2.0
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 Lose factor(48-62Hz) ≦ 0.05
8 Relative permittivity 48-62 Hz ≦ 0.5
9 Voltage endurance perpendicular to lamination,in oil 90±2℃ ≥ 在90±2℃
Thickness:
0.5-1.0mm
1.1-2.0mm
2.1-3.0mm
Kv/mm

22
20
18



13.5



8.0

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