Product Description1. Heat resistance class: H2.2. Characteristics:Silicone glass cloth having a high heat resistance and mechanical properties, dielectric properties, good oil resistance,3.Usage: It is widely used for the transformer oil and petrol.4.Thickness:0.11ã€0.12ã€0.15ã€0.17ã€0.18ã€0.20ã€0.25mm5.Width: 15, 20, 25mm, can be cut straightly and obliquely(45° angle)or straight cut, Other size can be confirmed by the communication between supplier and buyer.6. It is made from electrical alkali-free glass fiber cloth, after impregnating with silicone insulating varnish and drying
| Property | Nominal thickness and tolerance | Unit | |||||||
| 0.10±0.010 | 0.12±0.012 | 0.15±0.015 | 0.18±0.018 | 0.20±0.020 | 0.25±0.025 | ||||
| Hydrolysis resistance | After 24h on 105±2℃, the varnish film will not be destroyed | ||||||||
| Influence of glass varnished cloth on oil | After 72h in 45 transformer oil on 105±2℃, the acid value is not more than 0.5mg KOH/g | ||||||||
| Influence of oil on glass varnished cloth | After 48h in 45 transformer oil on 105±2℃, the varnish film will not be destroyed | ||||||||
| Lengthwise | ≥70 | ≥90 | ≥100 | ≥105 | ≥110 | ≥120 | N/10mm | ||
| Crosswise | ≥40 | ≥50 | ≥60 | ≥65 | ≥70 | ≥80 | |||
| Tensile Strength | 45° Direction | ≥40 | ≥60 | ≥65 | ≥65 | ≥70 | ≥80 | ||
| N/10mm | ≥20 | ≥25 | ≥30 | ≥30 | ≥30 | ≥35 | |||
| Oblique cutting | Before Varnishing | ||||||||
| lap joint | After | ≥20 | ≥20 | ≥30 | ≥30 | ≥30 | ≥30 | ||
| Varnishing | |||||||||
| 2～12 | 2～12 | 3～15 | 3～15 | 4～16 | 5～20 | ||||
| Extend 10% along 45° direction | |||||||||
| ç»å‘ Lengthwise | ≥1.5 | ≥1.5 | ≥2.0 | ≥2.0 | ≥2.5 | ≥3.0 | % | ||
| Elongation | |||||||||
| rate at breaking% | 45Â°å‘ 45° direction | ≥15 | ≥15 | ≥20 | ≥20 | ≥20 | ≥20 | ||
| ç»å‘ Lengthwise | ≥5 | ≥6 | ≥7.5 | ≥10 | ≥20 | ≥20 | N | ||
| Edge tearing strength (N) | 45Â°å‘ 45° direction | ≥50 | ≥60 | ≥75 | ≥80 | ≥90 | ≥120 | ||
| 23±2℃ | ≥5.0 | ≥6.0 | ≥7.0 | ≥7.5 | ≥8.0 | ≥9.0 | Kv | ||
| Breakdown voltage (KV) | 155±2℃ | ≥2.0 | ≥2.5 | ≥3.0 | ≥3.0 | ≥3.0 | ≥3.5 | ||
| ≥2.5 | ≥2.5 | ≥3.5 | ≥3.5 | ≥3.5 | ≥3.5 | ||||
| Elongate 6% on 45° direction | |||||||||
| ≥2.0 | ≥2.2 | ≥2.8 | ≥2.8 | ≥2.8 | ≥3.0 | ||||
| After humidity on 23±2℃ | |||||||||
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