XFXP-1.8T Neutral Section Insulator (2021 Model) for 25kV AC Catenary
TB/T 3037 | Updated 2021 design | Easy installation & maintenance
Specifications
| Model | XFXP-1.8T-2021 |
|---|---|
| Standard | TB/T 3037-2002 Phase Separation Insulators for Electrified Railway OCS |
| Rated Voltage | 27.5kV rated (25kV AC 50Hz single-phase, inter-phase sectioning) |
| Design Speed | Up to 200 km/h (depending on sub-model) |
| Operating Temperature | -40°C to +70°C |
| Altitude | ≤ 4,000 m |
| Materials | High-strength insulating elements; arc-resistant runners; aluminum alloy connection fittings |
| Installation | Series-mounted in the contact wire at neutral sections; used with trackside automatic phase-breaking equipment |
The XFXP-1.8T neutral section insulator (2021 model) complies with TB/T 3037 for phase separation on 25kV AC electrified railway catenary. The 2021 update refines the proven XFXP structure for more convenient installation and maintenance while preserving reliable inter-phase insulation.
High-strength insulating elements, arc-resistant runners and aluminum alloy fittings form the assembly, rated for 27.5kV systems, line speeds up to 200 km/h (sub-model dependent), -40°C to +70°C and altitudes up to 4,000 m.
The unit is series-mounted in the contact wire at neutral section locations and operates together with trackside automatic phase-breaking equipment, ensuring trains pass the neutral zone safely at line speed.
Henan Chuangwei Railway Equipment Co., Ltd. supplies the 2021 model with complete documentation. Contact us for datasheets and project pricing.
Frequently Asked Questions
What changed in the 2021 model?
The 2021 update refines the proven XFXP structure for easier installation and maintenance while keeping the reliable inter-phase insulation performance of earlier models.
Which trains and speeds is it suitable for?
25kV AC 50Hz traction systems at line speeds up to 200 km/h, depending on sub-model and site conditions.
Is it compatible with automatic neutral-section passage systems?
Yes, it is designed for use with trackside automatic phase-breaking (auto-passage) equipment.
Performance
Operating Conditions
Outdoor service at neutral sections from -40°C to +70°C, altitudes to 4,000 m, including humid and polluted environments.
Mechanical
2021-refined structure for convenient installation and maintenance; smooth pantograph passage at up to 200 km/h.
Electrical
Inter-phase separation per TB/T 3037 with high-strength insulating elements and arc-resistant runners for 27.5kV systems.
Applications
Neutral Sections
Phase separation on 25kV AC mainlines.
Auto Phase-Breaking
Compatible with trackside automatic passage systems.
Humid & Rainy Regions
Arc-resistant runners for wet climates.
Cold Regions
Operation down to -40°C.