Electrocal Insulation epoxy resin sheet 3240 Insulation epoxy resin sheet 3240 is by the electrician non alkali glass fiber cloth impregnated with epoxy, phenolic resin, drying, hot pressing plate insulation laminated products. Insulation epoxy resin sheet 3240 Suitable for the mechanical, electrical and electronic components with high insulation structure, and Insulation epoxy resin sheet 3240 can be used in the wet conditions and the oil of the transformer, Insulation epoxy resin sheet 3240 has high mechanical and dielectric properties of heat resistance and moisture resistance. Insulation epoxy resin sheet 3240 Heat resistant grade B, grade F. Characteristics: 1. Strong mechanical properties, and Insulation epoxy resin sheet 3240 has good machining, machining of high strength, wear resistance, high temperature resistance, stable electrical performance in high temperature, humidity, used for transformer skeleton, wiring boards, insulation, liner plate of insulation structure. 2.The Insulation epoxy resin sheet 3240 mechanical properties high of middle temperature, stable electrical properties at high temperature. At room temperature and 155 ℃ still has high mechanical strength, excellent electrical insulation properties, common product withstand voltage breakdown index is as high as 20KV/mm. 3. The Insulation epoxy resin sheet 3240 flexural strength and processing performance is excellent, the product has high bending strength, and Insulation epoxy resin sheet 3240 excellent toughness, can use the lathe, milling machine, drilling machine processed into various shaped pieces without stratification. 4. Insulation epoxy resin sheet 3240 is Low thermal conductivity, electrical insulation performance is excellent,oil resistance anticorrosive, dry, wet and good electrical performance, flame retardant. Product Specifications: length x width: 1000 x 1000mm 1020x 2020mm , according to customer requirements and processing of various sizes of epoxy resin board, washer, special-shaped pieces, according to drawings process various parts Thickness:0.4mm,0.5mm,0.6mm,0.8mm,1.0mm,2.0mm,3.0mm,4.0mm,5.0mm , 10mm , 20mm , 25mm , 30mm , …… 100mm Color:yellow Table 1 Performance indicators No. | Items | Unit | Index | 1 | Density | g/cm3 | (1.70~1.90) | 2 | Absorbent | mg | Table 2 | 3 | Vertical layer to bending strength | MPa | ≥340 | 4 | Vertical to the compression strength layer | MPa | ≥(350) | 5 | Tensile Strength | MPa | ≥(300) | 6 | Adhesive strength | N | ≥5600 | 7 | Impact strength (simply supported beam method) | kJ/m2 | ≥33 | 8 | Insulation resistance after immersion in water | Ω | ≥5.0×108 | 9 | Dielectric loss factor, 1MHz | — | ≤0.04 | 10 | The dielectric constant, 1MHz | — | ≤5.5 | 11 | Vertical layer to electric strength (90 ± 2) ℃ in transformer oil | kV/mm | Table3 | 12 | Parallel to layer breakdown voltage (90 ± 2) ℃ in transformer oil | kV | ≥35 |
Table 2 Absorbent The average thickness(mm) | Absorbent (mg) | The average thickness(mm) | Absorbent (mg) | The average thickness(mm) | Absorbent (mg) | 0.4 | ≤17 | 2.0 | ≤20 | 10 | ≤34 | 0.5 | ≤17 | 2.5 | ≤21 | 12 | ≤38 | 0.6 | ≤17 | 3 | ≤22 | 14 | ≤41 | 0.8 | ≤18 | 4 | ≤23 | 16 | ≤46 | 1.0 | ≤18 | 5 | ≤25 | 20 | ≤52 | 1.2 | ≤18 | 6 | ≤27 | 25 | ≤61 | 1.6 | ≤19 | 8 | ≤31 | One side of processing to 22.5 | ≤73 |
Table 3 Electric strength The average thickness(mm) | Electrical strengthkV/mm | The average thickness(mm) | Electrical strengthkV/mm | The average thickness(mm) | Electrical strengthkV/mm | 0.4 | ≥16.9 | 1.0 | ≥14.2 | 2.2 | ≥11.4 | 0.5 | ≥16.1 | 1.2 | ≥13.7 | 2.4 | ≥11.1 | 0.6 | ≥15.6 | 1.4 | ≥13.2 | 2.5 | ≥10.9 | 0.7 | ≥15.2 | 1.6 | ≥12.7 | 2.6 | ≥10.8 | 0.8 | ≥14.8 | 1.8 | ≥12.2 | 2.8 | ≥10.5 | 0.9 | ≥14.5 | 2.0 | ≥11.8 | 3.0 | ≥10.2 |
|