Production Introduction
36kV Suspension High Tension Composite Polymer Insulators
| Rated Voltage | Height | Dry Arcing Distance | Creepage Distance | Specified Cantilever Load (SML) |
Rod | No. od sheds | Wet Power Frequency Withstand Voltage (kV) |
Lightning Impulse Withstand Voltage (kV) |
| 36kV | 630±15mm | 460mm | 970mm | 70kN | 16mm | - | - | 265 |
Parameters
| Item | Requirement | Measured Valued |
| Visual examination | Fuchsine, grey or white, no obvious mechanical admixture. Vulcanized silicon rubber with dense and smooth cutting surface. | Ok |
| Hardness (shore A) | ≮50 | 65~70 |
| Tensile strength (Map) | ≮4 | 4~6 |
| Failure elongation (%) | ≮150 | ≮180 |
| Tearing strength (kN/m) | ≮10 (right angle sample) | 12~15 |
| Volume resistivity (Ω.m) | 1X1012 | 3~8X1012 |
| Puncture strength (kV/mm) | Alternating current ≮22 | ≮30 |
| Tracking and erosion | TMA4.5,erosion depth≯2.5mm | TMA4.5, erosion depth <0.8mm |
| Flammability (Grade) | FV-0 | FV-0 |
feature
Insulators are the most widely used basic components in high voltage transmission and distribution power systems, serving to isolate live parts. Composite insulators, which use epoxy rods and rubber sheds for external insulation, are a type of polymer composite insulator. Compared to traditional ceramic and glass insulators, composite insulators are significantly lighter (weighing only about 1/4 to 1/8 as much), have higher strength (10 times stronger than high-strength porcelain insulators), and require less maintenance due to their anti-water properties. Additionally, they overcome the short lifespan problem of conventional polymer materials, with a life expectancy of several decades. This makes them a new and advanced product in power systems.
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