Post insulators are usually made of ceramic or epoxy resin composite materials, with a columnar structure as the main body and a corrugated surface design to increase creepage distance and block sewage flow and electric arcs.
Suitable for three-phase AC 50Hz distribution system, mainly used to support wires, isolate live parts and grounding components, provide mechanical fixation and electrical insulation.
| Product model | Rated voltage（KV） | Rated bending load（KN） | Structure hight (mm) | Minimum arc distance(mm) | Minimum creepage distance (mm) | Lightning impulse voltage (peak) (KV) | 1 min power frequency wet voltage(KV) |
| FZSW-15/4 | 10/12 | 4 | 230 | 180 | 485 | 85 | 45 |
Distribution line: 10/12kV overhead line straight tower conductor support and tension section corner stress point insulation 15.
Equipment installation: Insulation support for incoming and outgoing lines of distribution transformers, circuit breakers, isolating switches, and other equipment.
Special environment: Chemical industrial parks and coastal areas prioritize the use of composite insulators to reduce the risk of pollution flashover
As a basic component of the distribution network, the selection of 10/12kV column insulators requires comprehensive consideration of environmental conditions, mechanical loads, and operation and maintenance costs. The complementary application of porcelain and composite insulators can improve system reliability.
