The so-called energy-saving bridge is to reduce the power loss by improving the heat dissipation performance, making the cable relatively low. Such a bridge is called an energy-saving bridge.

Brief introduction of bridge

The bridge frame is divided into trough type, tray type and ladder frame type, net format and other structures, which are composed of brackets, supporting arms and installation accessories. It can be erected independently or attached to various buildings (structures) and pipe corridor supports, reflecting the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance. All parts need to be galvanized and installed in buildings If the outdoor bridge is near the seaside or in a corrosive area, the material must have the characteristics of corrosion resistance, moisture resistance, good adhesion, and high impact strength.

Installation requirements

1. As a supporting project of the wiring project, the cable tray has no special specification guidance. The specifications of various manufacturers lack universality. Therefore, the design and selection process should be based on the type and number of cables in each electrical system. Bridge.

(1) Determine the direction: According to the building layout plan, combined with the air conditioner pipeline and electrical pipeline installation, convenient maintenance, and the density of the cable routing to determine the best route of the cable tray. Indoors, it should be erected along the walls, columns, beams and floor slabs of the building as much as possible. If there is no other pipe rack to borrow, you need to set up (support) the column.

(2) Load calculation: Calculate the cable weight per unit length on the longitudinal section of the main line of the cable bridge.

(3) Determine the width of the bridge: Determine the type and specifications of the cable bridge, the length of the support arm, the length and spacing of the pillars, the width and the number of layers of the cable bridge according to the number of cables, cable diameter and cable spacing.

(4) Determine the installation method: determine the fixing method of the bridge according to the installation conditions of the site, choose the hanging type, upright type, side wall type or mixed type, the connecting parts and fasteners are generally supplied matching, in addition, according to the bridge Select the appropriate cover for the structure.

(5) Draw a flat and cross-sectional view of the cable tray, and a space map should be drawn in some parts, and a material table should be listed.

2. If it is used together with the power cable bridge, the power cable and the weak current cable should be on one straight side, separated by a partition in the middle.

3. When the weak current cable and other low-voltage cables are used together in the bridge, the weak current cable of the weak current system with the outer shielding layer should be strictly selected to avoid mutual interference.