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Insulated Joint Bars
Product Overview Insulated joint bars (also called insulated rail joints or IRJs) are specialized fish plates designed to electrically isolate rail sections while maintaining mechanical continuity. These critical components are essential for track circuit signaling systems, crossing protection,...
Features
Product Overview
Insulated joint bars (also called insulated rail joints or IRJs) are specialized fish plates designed to electrically isolate rail sections while maintaining mechanical continuity. These critical components are essential for track circuit signaling systems, crossing protection, and electrified railway isolation.
Specialized Types
| Type | Application | Key Feature |
|---|---|---|
| Glued Insulated | High-speed lines | Epoxy-bonded insulation |
| Breathing Joint | LWR tracks | Enhanced gap control |
| Hybrid Joint | Transition zones | Mixed material design |
Maintenance Protocols
Inspection Frequency
Monthly: Visual check for cracks/contamination
Quarterly: Megger test (≥500V DC)
Annually: Ultrasonic inspection
Replacement Indicators
Resistance <10⁶Ω (contaminated)
Visible cracks in insulation
Bolt hole elongation >2mm
Wear >5mm at rail contact surfaces
Electrical Properties
| Condition | Resistance | Voltage Rating |
|---|---|---|
| Dry | ≥10¹²Ω | 10kV DC |
| Wet | ≥10⁹Ω | 5kV AC |
| Contaminated | ≥10⁶Ω | 3kV AC |
Other Products
FAQ
Q: Is it a manufacturer or a distributor?
A: We are a factory.
Q: What is the minimum order quantity
A: 5,000 sets. For more details, please consult the customer service.
Q: How long is the delivery time?
A: 8-12 weeks (standard configuration)
Q: Why the Insulated Joint Bars Quality Matters?
A: Prevents signal failures (99.9% reliability)
Reduces track circuit faults by 80%
Extends service life to 8-12 years
Maintains safety in electrified zones
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