CN
Melamine acetalized glass fiber composite tube is referred to as melamine insulated tube. Because of its high rigidity, shock resistance, arc flame resistance and excellent electrical insulation performance in humid environments, it is widely used in high current fuse tubes, lightning arrester porcelain bushing etc.
The technology of the composite tube has been monopolized by foreign companies, and the technology of domestic companies has not been perfect. After three years of research and development, our company has applied for a number of patents and is now in production.
Melamine insulated tube has the following advantages:
- A tube is smooth inside and outside.
- A glass fiber cloth is densely dipped, and the tube fittings are semi-transparent.
- One section is fine and smooth, without thread leakage.
- A tube size can be customized according to customer needs.
| Name | Parameter |
| Material | Melamine resin, alkali-free glass cloth |
| Volume resistivity | > 1.0x10 / Ω.m |
| Vertical layer direction electric strength | 6KV / m |
| Axial bending strength | ≥ 400MPa |
| Arc resistance | ≥ 180 / S |
| Insulation resistance | ≥ 105M Ω |
| Water absorption rate | ≤ 2% |
| Material density | 1.65 – 1.9g/cm3 (customizable) |
| Flame Retardancy | Meets UL94-V0 vertical burning and GB/T2408 vertical and horizontal burning |
| Airtightness | ≥ 0 2MPa, pressure holding for 1 min, water seeping out evenly on the surface, no local spraying |
| Temperature resistance | 150℃/long term, 180℃/2h, without deformation, stratification and cracking |
| Compressive strength | greater than 70MPa |
| Environmental protection | in line with EU RoHS directive requirements |
| Appearance | The surface is uniform, smooth and uniform in color. Tightly wound, no interlayer, winding pattern, no bubbles, no white spots, and overall no burrs |
| Size | According to customer requirements |
