Industry Application
Rail and Metro
Traction power depots signalling cable and tunnel routes where smoke toxicity is regulated
Industry Pain Points
What Goes Wrong in This Sector
Smoke Toxicity in a Tunnel Is a Life Safety Issue
A halogenated material burning in an enclosed route produces corrosive gas that harms evacuating passengers and destroys signalling equipment.
Tunnel and Depot Cable Takes Physical Abuse
Cable is dragged pulled and walked on during installation and maintenance.
Possession Windows Are Short and Immovable
Work that cannot be completed inside a night possession has to be redone which doubles the cost.
Mixed Voltage Systems in One Facility
A depot may carry 400 V auxiliary supplies 750 V DC traction and 33 kV incomers all in the same cable routes.
Customer Requirements
What Buyers in This Sector Actually Need
- Halogen free formulations across tubing and busbar insulation not just on one product
- Heavy wall grades for the positions that take mechanical abuse
- A method that completes inside a possession window with no cure time
- One supplier across LV auxiliary MV incoming and busbar insulation
- Repair products that restore a jacket without cutting an installed cable
Products
Products That Suit This Sector
The parts of our range that this industry buys most often
S3(n) Medium Wall HF
Halogen free medium wall polyolefin tubing with 3:1 and 4:1 shrink for insulating sealing and protecting cable to 36 kV
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S3(nh) Heavy Wall HF
Thickened halogen free polyolefin tubing where the same fire performance is needed with far more mechanical protection
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S1(n)-10 Busbar HF 24 kV
Halogen free red tubing that insulates round and rectangular copper or aluminium busbar inside 6 to 24 kV switchgear
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S1(n)-35 Busbar HF 36 kV
The 36 kV halogen free busbar grade for switchgear where clearance is tight and smoke toxicity is regulated
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T1 Heat Shrink Tape
Adhesive lined heat shrink tape that seals and insulates irregular shapes where no tube or sleeve will fit
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R1 Repair Sleeve
A rail and channel closure sleeve that repairs a damaged cable jacket without cutting the cable or removing the terminations
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Y2 Cable End Caps
Adhesive lined molded caps that seal a cut cable end against water ingress during storage transport and installation
VIEW DETAILSTypical Scenarios
Where These Products Are Installed
Tunnel Cable Route Protection
Halogen free heavy wall tubing over joints and jacket damage in running tunnels.
Depot Switchgear Busbar Insulation
Halogen free insulated bar and joint covers in depot substations.
Signalling Cable Sealing
Sealing cut ends and breakouts on multi core signalling cable.
Auxiliary Supply Joints
LV joints in station and depot distribution.
Emergency Repair Inside a Possession
Wraparound sleeves and heat shrink tape restoring damage without cutting.
Station MV Incomers
Terminations and joints on 33 kV incoming supplies.
Solution Process
How We Work with This Sector
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01
Confirm the Fire Specification
Rail projects normally specify halogen free low smoke materials. We confirm which grade meets the project specification before quoting.
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02
Map Products to Cable Routes
Different routes carry different mechanical exposure so medium wall and heavy wall are allocated by position.
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03
Sample for Approval
Trial material with test data for the project fire and materials approval process.
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04
Production and Marking
Batch traceable production with any project specific marking required.
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05
Delivery to Depot or Site Store
Delivery timed so material is on site before the possession window opens.
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06
Possession Support
WhatsApp contact with our engineers during the possession if a question arises.
Delivery Capability
What We Commit to
- Halogen free grades across tubing busbar insulation and tape
- Batch traceability from finished carton back to compound lot
- Delivery timed to possession windows
- Project specific marking on request
- Technical response on WhatsApp during working possessions
Case Studies
Projects in This Sector
Halogen Free Busbar Insulation for a Metro Depot Substation
Tube cut to length and labelled per position with 64 custom molded joint covers
READ CASE →Jacket Repair Programme Inside a Running Metro Tunnel
Halogen free repairs completed inside night possession windows with no cure time
READ CASE →Knowledge
Related Technical Articles
Halogen Free Versus Flame Retardant Heat Shrink Tubing
Two different requirements that specifications often confuse and how to choose between them
READ →Medium Wall Versus Heavy Wall Heat Shrink Tubing
When the extra wall thickness earns its cost and when it is money spent on stiffness you do not want
READ →Emergency Cable Jacket Repair Guide
How to decide whether a cable can be repaired and how to make the repair last
READ →FAQ
Rail and Metro Frequently Asked Questions
Which of your products are halogen free
What is the difference between halogen free and low smoke zero halogen
Can a repair be completed inside a night possession
Do you supply for 750 V DC traction systems
Is batch traceability available
Do you have rail specific approvals
Still need an answer ask our engineers on WhatsApp
Talk to Us About Rail and Metro
Send your cable schedule drawing or specification and we will return part numbers quantities and a lead time.