Description: 3240 Epoxy phenolic glass cloth laminated sheets are made of alkali-free E-glass cloth impregnated with epoxy resins and phenolic resins by being processed under heat and pressure.
Thermal Grade: B-Class (130℃)
Performance & Application: High mechanical and dielectric properties, fine heat and humidity resistance, can be used in electrical machine and devices as insulating construction parts in moist circumstances and in transformer oil.The laminated sheets can be machined,punched,drilled,milled, swan, sanded,sheared or routed.Assembly by bonding, metas screws or rivets ara also possible.
Thickness: 0.5---100mm.
Size: 1020mm * 1220mm; 1020mm * 2020mm; 1220mm * 2440mm.
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Items
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Unit
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Value
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Density
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g/cm3
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1.7-1.9
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Bending Strength
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Mpa
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≥340
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Impact Strength parallel to laminations( Charpy)
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KJ/M2
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≥33
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Impact Strength
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KJ/M2
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≥6
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Loss factor (48-62)Hz
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℃
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≤5.5
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Voltage endurance perpendicular to lamination, in oil 90±2℃
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0.5-1mm
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KV/mm
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≥22
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1.1-2mm
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≥20
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2.1-3mm
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≥18
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Temperature index
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℃
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130
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Voltage endurance parallel to lamination, in oil 90±2℃
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KV
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30
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IEC Standard
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EPGC201
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