Application: | Insulators, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish |
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Type: | Insulation Sheet |
Chemistry: | Inorganic Insulation |
Material: | Phenolic |
Thermal Rating: | E 120 |
Maximum Voltage: | <10KV |
Customization: |
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1.Description of t3025 phenolic cotton cloth laminated sheet
Phenolic cotton cloth laminated sheet/ 3025 Phenolic Cotton Fabric Laminate Sheet is a kind of insulation sheet, made of coarse cotton cloth impregnated phenolic resin by processing under heat and pressure. This product is widely used for low voltage applications ,for machines & appliances having higher voltages but lower electrical stress (slot wedges ,spacers) as material for bearing , gears , rollers & other constructional components , drilling jigs , underwater bearings , telecommunication & high frequency technique property ,oil resistance and dielectric property, as electrical materials with low electric propertyProperties | Unit | Grade | |
3025 | |||
Flexural strength perpendicularto laminations | ≥ | MPa | 100 |
Compression strength perpendicular To laminations | ≥ | MPa | 245 |
Bonding strength | ≥ | N | 5400 |
Dielectric StrengthPerpendicular to Laminations(in 90±2°C transformer oil,1mm in thickness) | ≥ | KV/mm | 0.82 |
Breakdown voltage parallelto laminations(in 90±2°CTransformer oil) | ≥ | kV | 1 |
Permittivity(1MHz) | ≤ | - | 5.5 |
Dissipation factor(1MHz) | ≤ | - | 0.04 |
Insulation Resistance afterimpregnated in water | ≥ | Ω | 1.0×106 |
Density | g/cm3 | 1.45-1.5 | |
Water absorption(1mm in thickness) | mg | 206 | |
Color | - | Brown | |
Tensile strength | ≥ | MPa | 98 |
Impact strength | ≥ | KJ/m2 | 8.8 |
Temperature index(short time). | ≥ | - | 120 |
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