Products Description
33kv disc insulator support transmission lines on steel towers, isolating the lines from the tower. They play a key role in the safe supply of electricity.
This type provides partial protection from lightning. The suspension arrangement provides greater flexibility to the line. Suspension insulators are allowed to swing so that they can take up the position where mechanical stresses are minimum.
Technology characteristics
| Rated Voltage (kV) |
SML (kN) |
Height (mm) |
Min. Creepage Distance (mm) |
End Fittings | Power Frequency Flashover Voltage (Wet) (kV) |
Lightning Impulse Withstand Voltage (kV) |
| 33 | 70 | 610±10 | 1180 | Socket and Ball | 185 | 410 |
| 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 |
STANDARDS:
IEC 61109, ISO 9001, ISO 14001, ISO 45001. We can design products in accordance with Client's Requirements.
PACKAGING
  |
All 33kv disc insulator are packed in weatherproof containers in order to protect the products during land, air and sea transportation. Several different grades of packaging can be offered depending on the mode of transport and the expected storage conditions. Special packaging arrangements can be accommodated upon the users' request.
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