What problems should be paid attention to when installing cable tray?

Appearance inspection: When the cable tray enters the construction site, the following materials shall be submitted: factory certificate, periodic inspection report of provincial and municipal quality supervision stations and relevant technical appraisal documents. The thickness of cable tray plate shall meet the relevant requirements. The coated surface of hot-dip galvanized cable tray shall be uniform, and there shall be no defects such as scorching, ash hanging and local non-galvanizing. Electrostatic spraying should be flat, smooth and uniform, without peeling, bubbles and bubbles. The bridge itself should be flat without deformation. The inner wall should be smooth and burr-free. The weld surface of the bridge should be uniform, and there should be no defects such as missing welding, cracks and burning through.

Installation position of cable tray: When the tray is laid horizontally, the height from the ground should generally not be less than 2.5m When the tray is laid in multiple layers, a certain distance should be left between the layers of the tray to meet the needs of heat dissipation, maintenance and interference prevention. When the cable tray is laid in parallel with various pipelines, its clear distance shall comply with relevant regulations.

Installation of supports and hangers: The quality of supports and hangers of cable bridge should meet the current relevant technical standards. When the cable tray is laid horizontally, the support span is generally 1.5 ~ 3m. When the cable tray is laid vertically, the fixed distance should not be greater than 2m. The horizontal height difference between two adjacent support arms should not be greater than 10mm, and the vertical deviation of the vertical center line of two adjacent support arms should not be greater than 20mm.

Cascaded cable bridge

According to the relevant information at home and abroad, the CQ 1-T stepped cable tray is improved. It has the advantages of light weight, low cost, unique shape, convenient installation, good heat dissipation and ventilation. It is suitable for laying general large-diameter cables and also for laying high and low voltage power cables.

Tray cable bridge

Tray cable tray is one of the most widely used in petroleum, chemical industry, light industry, telecommunications and other industries. It has the advantages of light weight, large load, beautiful appearance, simple structure and convenient installation. It is not only suitable for the installation of power cables, but also suitable for the laying of control cables.

Trough cable bridge

Trough cable tray is a fully enclosed cable tray. It is most suitable for laying computer cables, communication cables, thermocouple cables and control cables of other highly sensitive systems. It has a good effect on shielding interference of control cables and protecting cables in severely corrosive environment.