XFXP-1.8T-2019 Neutral Section Insulator (25kV)
2019-version neutral section insulator per TB/T 3037-2002 for 25kV AC overhead contact system, up to 160 km/h.
Specifications
| Model | XFXP-1.8T-2019 |
|---|---|
| Drawing No. | CWLXP1.8T-19-00 |
| 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 160 km/h (designed to TB/T 3036-2016) |
| 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 2019-model neutral section insulator provides inter-phase electrical separation on 25kV AC electrified railway overhead contact systems. Its mature structure has been applied in batches on multiple railway lines, demonstrating stable long-term operation.
The assembly combines high-strength insulating elements, arc-resistant runners and aluminum alloy connection fittings. It is rated for 27.5kV systems, line speeds up to 160 km/h (sub-model dependent), operating temperatures from -40°C to +70°C and altitudes up to 4,000 m.
Installed in series with the contact wire at neutral section locations, the unit works together with trackside automatic phase-breaking equipment so trains pass the dead zone without manual power switching.
For project specifications, type test reports and quotations, contact Henan Chuangwit Railway Equipment Co., Ltd.
Frequently Asked Questions
Where is the 2019 model typically used?
At neutral sections on 25kV AC lines where two supply phases meet. It has been batch-applied on multiple railway lines with stable operation records.
What is the design speed?
Up to 160 km/h depending on the sub-model and installation conditions.
Do you provide installation guidance?
Yes — installation drawings and on-site technical guidance are available for project orders.
Performance
Operating Conditions
Outdoor service at neutral sections from -40°C to +70°C and altitudes to 4,000 m, including polluted and humid atmospheres.
Mechanical Performance
Mature structural design batch-proven on multiple lines; smooth pantograph passage at up to 160 km/h.
Electrical Performance
Inter-phase separation per TB/T 3037-2002 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.
