Essential Preparations
Before installing the ladder-type cable tray, ensure all materials and tools are ready:
Measurement and Layout: Mark the tray's route using a chalk line, avoiding areas with dense existing piping or wiring.
Bracket Selection: Choose angle iron or channel steel brackets that match the width of the cable tray.
Drilling Check: Use a metal detector to avoid hitting concrete reinforcement bars.
Pre-treatment: Apply anti-rust treatment to metal brackets; add an extra anti-corrosion coating for humid environments.
Three Classic Mounting Methods
Select the most suitable mounting method based on site conditions:
Ceiling Suspension:
Secure suspension rods using expansion bolts.
Install a suspension point every 1.5 meters.
Add extra support at turns.
Wall-Side Mounting:
Space brackets no more than 2 meters apart.
Use L-shaped cantilever brackets for mounting.
Ensure a clearance of at least 50mm from the wall for heat dissipation.
Freestanding Column Mounting:
Secure columns using U-shaped clamps.
Maintain a 300mm vertical spacing between tray tiers.
Install seismic bracing every 6 meters.
Installation Acceptance Tips
Focus on the following checks after mounting is complete:
Levelness: Verify with a laser level; deviation should be ≤3mm/m.
Grounding Continuity: Resistance across bonding jumpers should be less than 0.1Ω.
Expansion Allowance: Leave a 20mm expansion gap every 30 meters on straight sections.
Stress Relief: Install rubber protective sleeves at cable entry and exit points.
