Several aspects to pay attention to when installing Cable Tray

2025-10-16 17:14:55

(1) Appearance inspection

When Outdoor Cable Tray enter the construction site, the following documents should be submitted: product factory certificate, regular inspection report from provincial and municipal quality supervision stations, and relevant technical appraisal documents. The thickness of the Cable Tray sheet should meet the relevant requirements. The surface of the hot-dip Galvanized cable tray coating should be uniform, without defects such as overburning, dust hanging, and partial non galvanizing. Electrostatic spraying should be flat, smooth, uniform, without peeling, without bubbles or water bubbles. The bridge itself should be flat, without distortion or deformation, and the inner wall should be smooth, without burrs. The welding surface of the bridge should be uniform, without defects such as missed welding, cracks, burn through, etc.

(2) Installation position of Fireproof cable tray trough type

When laying cable trays horizontally, the height above the ground should generally not be less than 2.5m. When laying multiple layers of cable trays, there should be a certain distance between the layers for heat dissipation, maintenance, and interference prevention. When Cable Tray are laid parallel to various pipelines, the clear distance should comply with relevant regulations.

(3) Installation of supports and hangers

The quality of the supports and hangers for Cable tray for electrical control and distribution should comply with the current relevant technical standards. When laying Cable Tray horizontally, the support span is generally 1.5-3m. When laying vertically, the fixed spacing should not exceed 2m. The horizontal height difference between two adjacent bridge support arms should not exceed 10mm, and the vertical deviation of the vertical centerline of two adjacent bridge support arms should not exceed 20mm