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| Customization: | Available |
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| Application: | Insulators, Winding Wire Coating Insulation, Elect |
| Color: | Brown |
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Audited Supplier Audited by an independent third-party inspection agency
| Product Name | 1.0 Natural cardboard | Production time | 2024.6 | ||
| Standard code | Internal control standards | Quality grade | A | ||
| Inspection items | unit | Standard requirements: | Inspection results | Detection method | |
| Thickness allows deviations | % | ±7.5 | 1.4 | IEC60641-2:2004 | |
| Tightness | g/cm² | 0.90-1.15 | 1.01 | ||
| tensile strength | Longitudinal | N/mm² | ≥50 | 54.5 | |
| Transverse | N/mm² | ≥30 | 33.4 | ||
| Elongation | Longitudinal | % | ≥3.0 | 7 | |
| Transverse | % | ≥4.0 | 5.2 | ||
| Shrinkage | Longitudinal | % | ≤0.7 | 0.53 | |
| Transverse | % | ≤1.0 | 0.8 | ||
| Thick direction | % | ≤5.0 | 4.1 | ||
| Ash | % | ≤1.0 | 0.72 | ||
| Oil absorption rate | % | ≥15.0 | 28.2 | ||
| Water extraction PH | 69 | 7.56 | |||
| Conductivity of water extraction | mS/m | ≤8.0 | 5.5 | ||
| Electrical strength (in air) | kV/mm | ≥10 | 10.3 | ||
| Electrical strength (in oil) | kV/mm | ≥35 | 41.4 | ||
| Delivery moisture | % | ≤8.0 | 7.6 | ||
| Inspection opinion: The inspection results meet the requirements of internal control standards and are qualified. | |||||
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