Factory direct supply construction material fiberglass insulation board
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| Item | Test standard | Measured value | Standard value |
| Thickness tolerance | IEC 641-2 | ≤ 1.6 mm 6.00 % | ±7.5 % |
| > 1.6 - 8.0 mm 3.00 % | ± 5.0 % | ||
| Apparent density | ≤ 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 | ≤ 1.6 mm 75 N/mm² | 70 N/mm² | |
| > 1.6 - 4.0 mm 90 N/mm² | 80 N/mm² | ||
| Min. tensile strength C.M.D, unfolded | ≤ 1.6 mm 60 N/mm² | 50 N/mm² | |
| > 1.6 - 4.0 mm 70 N/mm² | 55 N/mm² | ||
| Min. elongation M.D, unfolded | 6.50% | 6.00% | |
| Min. elongation C.M.D, unfolded | 8.10% | 8.00% | |
| Max. moisture content | 7.60% | 8.00% | |
| Max. ash content | 0.80% | 2.00% | |
| pH of aqueous extract | 6.3 | 6.0 - 9.0 | |
| Max. shrinkage M.D | 0.40% | 0.50% | |
| Max. shrinkage C.M.D | 0.60% | 0.70% | |
| Max. thickness shrinkage | 3.90% | 5.00% | |
| Min. oil absorption | ≤ 1.6 mm 13.7 % | 11.00% | |
| > 1.6 - 4.0 mm 10.6 % | 9.00% | ||
| Compressibility C | ≤ 1.6 mm 9.4 % | 10.00% | |
| > 1.6 - 4.0 mm 5.7 % | 7.50% | ||
| Revers. part of compressibility Crev | ≤ 1.6 mm 54 % | 45% | |
| > 1.6 - 4.0 mm 71 % | 50% | ||
| Min. breakdown voltage in oil | ≤ 1.6 mm 15 kV/mm | 12 kV/mm | |
| > 1.6 - 4.0 mm 13 kV/mm | 10 kV/mm | ||
| Max. conductivity of aqueous extract | ≤ 1.6 mm 3.3 mS/m | 10 mS/m | |
| > 1.6 - 4.0 mm 3.5 mS/m | 10 mS/m |
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Factory direct supply construction material fiberglass insulation board
Product description of construction material fiberglass insulation board
Pressboard PSP3050 (Transformer Board PSP3050) 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 construction material fiberglass insulation board
To use as insulations material in Power and Distribution Transformers
It is the base material for components like corrugated boards, cyclinders, rings and mouldable parts.
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