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Red electrical insulation fiber board for transformer epoxy transformer board,fiber board
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Accurate specifications ensure that we provide professional products
Item | Test standard | Measured value | Standard value |
Thickness tolerance | IEC 641-2 | ≤ 1.6 mm 6.00 % | ±7.5 % |
> 1.6 - 8.0 mm 4.00 % | ± 5.0 % | ||
Apparent density | IEC 641-2 | ≤ 1.6 mm 1.09 g/cm³ | 1.00 - 1.20 g/cm³ |
> 1.6 - 4.0 mm 1.15 g/cm³ | 1.10 - 1.25 g/cm³ | ||
Min. tensile strength M.D. unfolded | IEC 641-2 | ≤ 1.6 mm 107 N/mm² | 100 N/mm² |
> 1.6 - 4.0 mm 128 N/mm² | 105 N/mm² | ||
Min. tensile strength C.M.D, unfolded | IEC 641-2 | ≤ 1.6 mm 77 N/mm² | 75 N/mm² |
> 1.6 - 4.0 mm 83 N/mm² | 80 N/mm² | ||
Min. elongation M.D, unfolded | IEC 641-2 | 3.90% | 3.00% |
Min. elongation C.M.D, unfolded | IEC 641-2 | 4.10% | 4.00% |
Max. moisture content | IEC 641-2 | 4.20% | 6.00% |
Max. ash content | IEC 641-2 | 0.30% | 1.00% |
pH of aqueous extract | IEC 641-2 | 6.3 | 6.0 - 9.0 |
Max. shrinkage M.D | IEC 641-2 | 0.40% | 0.50% |
Max. shrinkage C.M.D | IEC 641-2 | 0.60% | 0.70% |
Max. thickness shrinkage | IEC 641-2 | 3.90% | 5.00% |
Min. oil absorption | IEC 641-2 | ≤ 1.6 mm 13.7 % | 11.00% |
> 1.6 - 4.0 mm 10.6 % | 9.00% | ||
Compressibility C | IEC 641-2 | ≤ 1.6 mm 9.4 % | 10.00% |
> 1.6 - 4.0 mm 5.7 % | 7.50% | ||
Revers. part of compressibility Crev | IEC 641-2 | ≤ 1.6 mm 54 % | 45% |
> 1.6 - 4.0 mm 71 % | 50% | ||
Min. breakdown voltage in oil | IEC 641-2 | ≤ 1.6 mm 50 kV/mm | 40 kV/mm |
> 1.6 - 4.0 mm 45 kV/mm | 35 kV/mm | ||
Max. conductivity of aqueous extract | IEC 641-2 | ≤ 1.6 mm 3.3 mS/m | 5.0 mS/m |
> 1.6 - 4.0 mm 3.5 mS/m | 6.0 mS/m |
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Product description of electrical insulation board
Pressboard PSP3052 (Transformer Board PSP3052) is a special product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, pressboard is excellently suited as an insulation material in electric machines, capacitors and oil-filled transformers.
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Product Application of electrical insulation board To use as insulation material in Power and Distribution Transformers
It is the base material for components like cyclinder, strips, spacers, rings. washers, plates, machine formed and moulded parts, punching and laminates.
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From raw materials to finished products, every process is tested and controlled professionally and seriously by our professional machines and person.
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1.Response to your inquiries and questions within 24hours.
2.Existing samples provided on free,only charge the freight.
3.High quality products and competitive offer
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