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Epoxy Glass Fiber Mesh Cloth for Dry-type Transformer
High Mechanical Strength:
Tensile strength 1000–5300N (depending on thickness), maintains high strength at elevated temperatures.
Excellent Electrical Insulation:
Surface breakdown voltage ≥18kV, surface insulation resistance ≥1×10¹³Ω, void-free and partial discharge-free.
High Thermal Class:
Class F (155°C) / H (180°C)
"Rebar" Reinforcement:
Firmly bonds with casting resin, preventing coil outer insulation cracking caused by thermal cycling and short-circuit electromagnetic forces.
Good Processability:
Flexible and durable, easy to cut and layer, with high dimensional accuracy.
Eco-Friendly and Healthy:
Non-hazardous to human health, a green material.
Chemical Corrosion Resistance:
Resistant to heat, moisture, oil, and chemicals, suitable for harsh operating environments.
Technical Specifications
| Item | Specification |
| Thickness | 0.3–2.4mm (Commonly used: 0.5/0.8/1.0/1.6/2.0mm) |
| Width | 1000–2100mm (Commonly used: 1200/1300/1500mm) |
| Mesh Size (Warp × Weft) | 4×4, 5×4, 6×5, 10×7mm (5×4 / 6×5 are the most commonly used) |
| Roll Length | 30/40/50/100m (±0.5m tolerance) |
| Weight per Square Meter (gsm) | 150–1100g/m² (weight rises with thickness) |
| Color | Red |
Customization:
Width, thickness, mesh size, and color can be customized according to customer requirements.
Storage and Transportation: Store flat, protect from moisture and direct sunlight. Stacking height ≤ 5 layers. Ambient temperature: -10°C to 40°C.
Dry-type transformers:
Used in filled cast coils as interlayer main insulation and inner/outer layer wrapping reinforcement, preventing cracks caused by thermal expansion/contraction and short-circuit stresses.
Reactors:
Used for reinforcement and insulation in coil casting. Same function as above.
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