Rigid Section Insulator for Urban Rail Transit (GHT-FYFH-1.0TG-0)
- Model
- GHT-FYFH-1.0TG-0
- Standard
- TB/T 3252-2022
- Category
- Section Insulator
- Documents & pricing
- Type test reports, factory inspection records and quotations are available on request; tender documents are archived by project.
Product Overview
The rigid section insulator for urban rail transit is used at electrical sectioning points of the rigidly suspended overhead contact system (busbar) of metro, light rail and other urban rail systems, providing isolation between power supply sections.
CRCC Certification Information
| Item | Content |
|---|---|
| Certified unit | Rigid section insulator for urban rail transit |
| Certification rule | Urban rail transit busbars and accessories |
| Certification standard | TB/T 3252-2022 "Busbar for Overhead Contact System of Electrified Railway" |
| Certificate No. | CRCC10225P22329R1S-001 |
| Certificate validity | 2026-04-16 to 2027-11-22 |
| Certification body | China Railway Test & Certification Center (CRCC) |
Technical Parameters
| Parameter | Technical Requirement |
|---|---|
| Product model | GHT-FYFH-1.0TG-0 |
| Product type | Type A |
| Product drawing No. | GHT-FYFH-1.0TG-0 |
| Construction | Rigid suspension (busbar) |
| Assembled tensile load | ≥10 kN (Table 7 of TB/T 3252-2022) |
| Tensile breaking load | ≥30 kN (Table 7 of TB/T 3252-2022) |
| Creepage distance | ≥1600 mm (per TB/T 3036-2016) |
| Air insulation clearance | ≥300 mm (per TB/T 3036-2016) |
| Lightning impulse withstand voltage | ≥160 kV (per TB/T 3036-2016) |
| Power-frequency wet flashover voltage | ≥87 kV (per TB/T 3036-2016) |
| Artificial pollution withstand voltage | ≥37 kV (per TB/T 3036-2016) |
| Applicable system | Rigidly suspended overhead contact system of urban rail transit (DC traction) |
Note: Clause 5.3.8 of TB/T 3252-2022 stipulates that the technical parameters of the individual insulating components of a rigid section insulator shall comply with TB/T 3036-2016, the assembled tensile load shall comply with Table 7, and all other electrical performance parameters shall comply with TB/T 3036-2016.
Differences from the Railway Rigid Section Insulator
| Item | This Product (Urban Rail) | Railway Rigid Section Insulator |
|---|---|---|
| Product category | 52 Urban rail transit traction power supply products | 15 Railway traction power supply equipment and components |
| Certified unit | Rigid section insulator for urban rail transit | Rigid section insulator |
| Certificate No. | CRCC10225P22329R1S-001 | CRCC10225P12329R1SSYZ-001 |
| Certification standard | TB/T 3252-2022 | — |
| Application scenario | Metro, light rail | Electrified railway |
The certificates of the two certification units are independent of each other and cannot substitute for one another.
Structural Features
- Suitable for rigidly suspended (busbar) overhead contact systems
- Compact structure, suitable for installation inside tunnels
- Smooth pantograph transition
Scope of Application
Suitable for electrical sectioning points of the rigidly suspended overhead contact system of urban rail transit systems such as metro and light rail.