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Phenolic Paper Laminated Sheet

Phenolic paper laminated sheet(Phenolic sheet, Bakelite). Phenolic paper sheet can be processed into all kinds of insulation parts, The products are widely used transformers, electric motors, electric switches etc. It is also can be used in transformer oil.

Phenolic paper laminated sheet(Phenolic sheet ,Bakelite)

No. Item Units Value
1 Applicable Standards GB1302-77
3 Thermal stability Thickness≤20mm 125
Thickness>20mm 100
4 Tensile strength ≥ MPa 78.4
5 Flexural strength ≥ Flexural strength ≥ 98
6 Impact strength ≥ kJ/㎡ kJ/㎡ 12
7 Bonding strength ≥ N 3528
8 Surface resistance ≥ Unde rnormal condition Ω _
Impregnated in water
9 Specific volume resistance≥ Under normal condition Ω _
Impregnated in water
10 Insulation resistance parallel to lamination≥ Under normal condition Ω 1.0×1010
Impregnated in water 1.0×108
11 Voltage endurance
parallel to lamination(in oil 20±5℃),5 minutes ≥
kV 16
12 Voltage endurance Perpendicular to lamination(in oil 20±5℃) ≥ kV/mm 25
Thickness: 1.1~2mm 22
Thickness: 2.1~3mm 19
Thickness: 3mm 19
13 Temperature index 120
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