JQJL04(11JB)-2010 JB-type contact wire connection clamp
JQJL04(11JB)-2010
Specifications
| Model | JQJL04(11JB)-2010 |
|---|---|
| Standard | TB/T 2075Series standards |
| Operating Temperature | -40℃~+70℃ |
| Altitude | <4000m |
| Materials | copper alloy clamps with soft copper connection cables |
| Installation | joints between messenger wire and contact wire, at tension length joints and turnouts |
The JB-type contact wire connection clamp (drawing No. JQJL04(11JB)-2010) serves joints between connection cables and contact wires in electrified OCS systems, in CuNi2Si/T2 by die forging.
Excellent mechanical and electrical performance: slip load between the clamp and the contact wire at least 4.0kN, ampacity not lower than the rated ampacity of the joined wire — safe and reliable in service.
| Drawing No. | JQJL04(11JB)-2010 |
| Application | This fitting suits joints between connection cables and contact wires in electrified OCS systems. |
| Material | CuNi2Si/T2 |
| Process | die forging |
| Mechanical performance | 1.connection clamp and contact wire betweenSlip loadat least 4.0kN. 2.connection clamp and connection cablegrip load after crimpingat least 4.0kN. 3.connection clampbolt tightening torque of 44N·m~56N·m. |
| Electrical performance | 1.clamp ampacity shouldat least joined wirerated ampacity. 2. clamp and wireconnection pointtemperature rise not higher than that of the joinedwire temperature rise. 3.over loadelectro-thermal cyclingtested clamp after and conductor joint pointjoint contact resistance at both endpoints not higher than etc.length of joined wire resistance. |
Performance
Operating Conditions
For all conductive nodes of the OCS, ensuring smooth traction current return.
Mechanical Performance
The clamp grips reliably without damaging the wire; the connection cable is soft and bend-tolerant.
Electrical Performance
Low transition resistance; ampacity satisfies traction current requirements without overheating in long-term service.
Applications
Tension length joints:
JB-type clamps (JQJL04(11JB)-2010) ensure electrical continuity across tension lengths.
Turnout areas:
JB-type clamps provide equipotential bonding between OCS legs at turnouts.
Mainline suspension points:
JB-type clamps split current between messenger wire and contact wire on mainlines.
Feeder nodes:
JB-type clamps carry high current at feeder introduction points.
