Home » News center » Insulating bracket and insulating segment joints
Insulating bracket and insulating segment joints
      Promulgator :LX      Time:2019-03-25
Insulating bracket

       Insulating bracket is used for supporting the whole contact rail system. At the same time, it guarantees the electrical insulation between power supply rails. Upper three “ears” is used to fix and link three power supply rails, lower two “ears” is used to fix and link grounding rail/signal rail. Insulating bracket is mould pressed by SMC unsaturated polyester glass fiber reinforced mould plastic material. It has the characteristics of reasonable structure strength, electrical insulation, etc.

 

S/N
Description
Unit
Target
1
Electrical resistance by Volume
Ωm
1.0×109
2
Power frequency dry flashover voltage
kV
≥60
3
Power frequency wet flashover voltage
kV
≥30
4
Pollution withstanding voltage(0.35mg/cm² of saline density)
kV
≥6
5
Lightning full-wave impulse flashover voltage
kV
≥125
6
Bending strength
Mpa
≥150
7
Impulse strength
kJ/m2
≥60
8
Water absorption rate
%
≤0.2
9
Power frequency dielectric strength
kV/mm
≥8
10
Enduring Tracking PTI
V
600
11
Resistance of flammability
 
FV-0
12
Glass fiber content by volume
%
≥25
13
Hot deformation temperature
≥150
14
Dielectric resistance
Ω
≥1012
15
The max. vertical working load
N
1000
16
The max. horizontal working load
N
1000
17
Torque of power supply rail ears of insulating brackets
Nm
≥70
18
Torque of grounding rail ears
Nm
≥25

Insulating section connectors

       It is used at necessary electrical subsection place including between adjacent power division, the liaison line between main line, crossover, between parking lot and main line, etc. in order to realize the continuous mechanical and electrical isolation between contact rails, and to ensure that locomotive collector shoe can transit smoothly at insulating subsection of contact rail. The body of the connector uses glass fiber reinforced resin (GRP). It has the advantages of high strength, arc withstanding, pollution withstanding, prevent ageing

 

S/N
Description
Unit
target
Remarks
1
Insulating resistance
Ω
≥1.0×1011

 

2
Sliding load with steel/ aluminium contact rai
kN
≥ 1.0

 


 
No comment
Total 0 records, divided into1 pages. First Prev Next Last
Business time
9:00-22:00
  • Email:rig123@rig123.com