Complaint
Description:
Fiber glass rod is used for production of silicon rubber insulator of electrical overhead lines. It is an important part of core material of composite insulator. It is pultruded by fiberglass, epoxy resin. The FRP long rod is mainly used for suspension insulator from diameter 8mm to 45mm.
Application:
It is mainly used for composite suspension/tension insulator in overhead transmission line.
Features:
It is used pultrusion process and has good performance of tensile strength.
Specification:
| Clssification | Test Item | Value | Sample size | Remark |
| Physical Test | Dye penetration test | 15min No red dot | 10±0.5mm | |
| Hardness(Barcol) | >65HBa | 50±0.5mm | ||
| Water absorption test | <0.05% | 50±0.5mm | ||
| Mechanical Test | Tensile strength | >1100MPa | 350±0.5mm | |
| Bending strength | >1100MPa | 350±0.5mm | ||
| Electrical Test | Water diffusion Test | <100uA | 30±0.5mm | |
| DC breakdown voltage test | >50kV/cm | 10±0.5mm | ||
| AC breakdown voltage test | >30kV/cm | 10±0.5mm | ||
| Discharge current | ≤50uA | 10±0.5mm | ||
| / | Stress corrosion test | No corrosion for 96 hours under a tensile load of 80.4 kN | 800±0.5mm | |
| High Temperature Resistance | Thermal induction performance | No cracking, overflow and discoloration under 150ºC±5ºC,4H | 50±0.5mm | |
| Bending strength at heating conditions | 150ºC±5ºC,1H,>280MPa | 350±0.5mm | ||
| / | Rocking fatigue characteristics | 12*105 without cracking | 2400±0.5mm | China UHV |
| Φ30-Φ40 | ||||
| / | Straightness | ≥2mm/m | 1000±0.5mm | |
| / | Density | ≥2.0g/cm3 | 10±0.5mm | |
| / | Glass fiber content | 78%-84% | 10±0.5mm |
