Relying on its own continuous innovation accumulation and accurate grasp of the development direction of the industry, it has achieved rapid development and achieved a certain position and recognition in the Composite Post insulator for electrified railway, 138kV Composite Station Post Insulator, Suspension insulator industry. Our products are made from the highest quality materials available. We are committed to providing our customers with exceptional support and service throughout the entire process.
railway composite insulation features
- Offers good electrical and mechanical performance for safe power transmission.
- Handles heavy pollution well. Its pollution flashover voltage is 2-3 times higher than porcelain insulators.
- The silicone rubber has special water-repelling properties. Even with dirt, it keeps high performance, making it great for hard-to-reach places.
- Weighs 1/7 to 1/10 of porcelain insulator strings, making it easy to transport and install. Perfect for remote areas or fast repairs.
- The shed has great waterproof and aging resistance for long-term use.
- Can handle impact and vibration, ensuring reliable operation.

| Type | Description | Section Height H(mm) |
Designed Creepage Distance (mm) |
Designed Arcing Distance (mm) |
Specified Mechanical Tensile Load (kN) |
Electrical Data | |||
| Lightning Impulse Withstand Voltage≥(kV) |
Dry Power Frequency Withstand Voltage (kV) |
Wet Power Frequency Withstand Voltage (kV) |
|||||||
| Ordinary Type |
FQX-25/100(120)QT | 700±20 | 1300 | 511 | 100(120) | 270 | 160 | 130 | |
| FQX-25/100(120)QH | |||||||||
| FQX-25/100(120)HH | |||||||||
| FQD-25/100(120)HY | 734±20 | ||||||||
| FQX-25/160QT | 750±20 | 1300 | 512 | 160 | |||||
| FQX-25/160QH | |||||||||
| FQX-25/160HH | |||||||||
| Enhanced Tyре | FQXJ-25/100(120)QT | 750±20 | 1480 | 561 | 100(120) | 290 | 175 | 140 | |
| FQXJ-25/100(120)QH | |||||||||
| FQXJ-25/100(120)HH | |||||||||
| FQXJ-25/100(120)HY | 785±20 | ||||||||
| FQXJ-25/160QT | 800±20 | 1485 | 562 | 160 | |||||
| FQXJ-25/160QH | |||||||||
| FQXJ-25/160HH | |||||||||
| Plateau Type |
FQXG-25/100(120)QT | 800±20 | 1680 | 611 | 100(120) | 310 | 190 | 150 | |
| FQXG-25/100(120)QH | |||||||||
| FQXG-25/100(120)HH | |||||||||
| FQDG-25/100(120)HY | 834±20 | ||||||||
| FQXG-25/160QT | 850±20 | 1692 | 612 | 160 | |||||
| FQXG-25/160HH | |||||||||

We will participate in every Porcelain Line Post Insulator for Railway fair, bringing our masterpieces and representative products, for we believe this is the greatest return for your support! This achievement is made possible by our highly skilled and experienced team. Our company establishes market leadership for you with high-efficiency production capacity and complete supply methods.
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