1.5kV Flexible Single-Line Section Insulator for Metro OCS
For 750V/1500V DC metro systems | Smooth pantograph transition
Specifications
| Model | FDJYQ-CWL-1 |
|---|---|
| Standard | Designed with reference to TB/T 3036-2016 and metro DC traction power supply technical conditions |
| Rated Voltage | DC 1500V (for rigid/flexible suspension per model) |
| Design Speed | Up to 120 km/h (metro lines) |
| Operating Temperature | -40°C to +70°C |
| Altitude | ≤ 4,000 m |
| Materials | High-strength insulating elements; aluminum alloy runners; stainless steel fasteners |
| Installation | Rigid suspension point mounting or flexible in-line series connection |
The FDJYQ-CWL-1 is a 1.5kV flexible section insulator for single contact wire sectioning in 750V/1500V DC metro and urban rail overhead contact systems. It electrically separates adjacent OCS sections while allowing the pantograph to pass smoothly.
The flexible structure adapts to complex installation environments common in metro projects — tunnels, tight curves and congested station areas — where alignment tolerance is limited. High-strength insulating elements, aluminum alloy runners and stainless steel fasteners form a durable assembly rated for metro line speeds up to 120 km/h, operating from -40°C to +70°C at altitudes up to 4,000 m.
The design references TB/T 3036-2016 and metro DC traction power supply technical conditions. Installation is by rigid suspension point mounting or flexible in-line series connection, depending on the OCS type.
Henan Chuangwei Railway Equipment Co., Ltd. supports metro projects with engineering assistance and full documentation for the FDJYQ series.
Frequently Asked Questions
What systems is this insulator designed for?
750V and 1500V DC metro and urban rail overhead contact systems requiring single contact wire sectioning.
Why choose a flexible structure for metro tunnels?
Metro tunnels and stations often have constrained geometry; the flexible structure tolerates misalignment and simplifies installation where rigid units are difficult to fit.
What is the maximum operating speed?
Up to 120 km/h, which covers typical metro line speeds.
Performance
Operating Conditions
Metro tunnel and open-air service from -40°C to +70°C, altitudes to 4,000 m, including humid tunnel atmospheres.
Mechanical
Flexible structure adapts to constrained metro geometry; aluminum alloy runners give smooth pantograph transition up to 120 km/h.
Electrical
High-strength insulating elements provide reliable section separation on 750V/1500V DC systems.
Applications
Metro Tunnels
Sectioning in constrained tunnel geometry.
Stations
Section separation at station and depot entrances.
Humid Tunnels
Materials selected for humid underground service.
Cold Regions
Operation down to -40°C.