1.Material: fiberglass and epoxy resin.
2.Process: winding
3.Diameter: from 10mm----1000mm
4.Length: from 10mm----10000mm
5.Color: Nature or any color
6.Surface : rough ,Smooth, SF6 resistant treatment.
7.Application : Insulation tube for surge arrester ,transformer,bushing and others.
8.Technical Character
NO. | Parameter | Unit | Value | |
1 | Density | g/cm3 | ≥1.92 | |
2 | Bending strength | Mpa | ≥320 | |
3 | Compression strength | Mpa | ≥200 | |
4 | Shearing strength | Mpa | ≥32 | |
5 | Dielectric loss factor(50HZ) | ≥0.02 | ||
6 | Dielectric Constant | 3-6 | ||
7 | Volume resistivity | At normal conditions After immersion in water | ΩM | ≥1.0×1011 ≥1.0×109 |
8 | Insulation resistance along laminas | At normal conditions After immersion in water | Ω | ≥1.0×1011 ≥1.0×109 |
9 | Surface withstand voltage after wetting in normal air for 1min with gap between electrodes of 30mm | kV | 14 | |
10 | Withstand voltage across laminas δ≤3mm in Transformer oil, at 90±2℃,5min δ＞3mm | kV | 18 20 | |
11 | Withstand voltage along laminas ion ransformer oil, at90±2℃,5min,between gap of 25mm | kV | ≥25 ≥50 ≥75 | |
12 | Insulation resistance | MΩ | ≥5×104 | |
13 | Power Frequency withstanding voltage(in Transformer oil,5min,between gap of 100mm,5min) The gap (on customer’s order) | kV | ≥85 | |