How to Choose Cable Trays for Metro & Tunnel Projects? CNVICH/VICHNET Factory Professional Guide
In urban rail transit and tunnel engineering, cable trays serve as the "vascular system" for power transmission, with selection directly impacting project safety and service life. As a cable tray manufacturer with 20 years of industry experience, CNVICH/VICHNET provides professional selection guidelines.
5 Key Factors for Metro & Tunnel Cable Tray Selection
-
Fire Resistance Requirements
- Must comply with GB/T 19215.2 fire standards
- Recommended: CNVICH fireproof trays (≥90min fire rating)
- UL94 V-0 flame retardant certified
-
Corrosion Protection Level
- Hot-dip galvanized + powder coating for humid underground environments
- 316L stainless steel recommended for coastal areas
- CNVICH anti-corrosion trays pass ISO 9227 2000hr salt spray test
-
Load-Bearing Capacity
- Must consider cable weight + maintenance loads
- CNVICH heavy-duty trays support 500kg/m span load
- Reinforced rib design improves anti-deformation by 40%
-
Installation Efficiency
- Modular quick-install system saves 30% labor time
- Pre-assembled units minimize on-site cutting
- VICHNET patented snap-on connection design
-
EMC Requirements
- Signal cables require partitioned EMC trays
- CNVICH EMI shielding trays provide ≥60dB shielding effectiveness
CNVICH Metro & Tunnel Specialized Solutions
▌Fireproof Series
- GB/T 9978 fire test certified
- Compatible with firestop systems
- Ideal for station halls & tunnel sections
▌Anti-Corrosion Series
- ≥85μm hot-dip galvanized coating
- Optional epoxy resin coating
- Perfect for utility tunnels
▌Integrated Support System
- Combines cable trays with pipe supports
- BIM prefabrication design
- Saves 20% underground space
Global Success Cases
✔ Singapore Thomson MRT Line ✔ Hong Kong Shatin-Central Link ✔ Shenzhen Metro Line 14 ✔ London Crossrail Project
Why Choose CNVICH/VICHNET?
★ First EN 61537 international certified manufacturer ★ 200+ urban rail transit project references ★ Full lifecycle quality tracking system ★ 24/7 technical support
Get Your Metro/Tunnel cable tray Selection Guide Now (Includes BIM model library & load calculation tools)
