We can often see the use of cable bridge, but in fact, many people do not know the content of the bridge, especially its accessories. Here we will talk about the role of the accessories when installation.
Commonly used accessories are: tee, elbow, reducing, screw, locking, bracket, boom, crossbar, connecting piece, grounding wire, etc. In addition, there are cable terminal junction box, cable intermediate junction box, connecting pipe terminal, steel plate wiring slot, cable and so on. Damping spring rings should also be mounted at the connection points of the ground part where vibration may occur.
In addition to the installation requirements of the above accessories, the grounding trunk circuit of the cable bridge system should meet the following requirements: the connection resistance between the bridge head should not be greater than 0.00033 ohm, and the grounding hole should be insulated coating. In the direct neutral grounding system of 1kV and below, the grounding equipment grounding is connected to the system neutral grounding. When the power supply is cut off and installed, the metal cross-sectional area of the bridge should not be less than the specified value.
Shielding and connectors are mainly cascade, tray, trough bridge frame accessories, including width adjustment plate, height adjustment plate, connection plate, Angle adjustment plate, baffle plate and so on. It is set in the width of the cable bridge, height, connection mode, horizontal and vertical direction of small Angle steering, separation of power cables and control cables and other accessories.
Bridge accessory is an important part of cable bridge. In this case, it is very strict because it needs to be applied to some more important areas. It mainly includes all kinds of cables, pipeline clips and connections, fastening bolts and other bridge accessories. All the cable clips connected and fastening bolts are galvanized. The surface treatment of other slot plates and Angle iron holes is divided into electrostatic spraying, galvanized and PA.
In addition, Shandong cable bridge manufacturers remind you that the installation of the bridge, whether it is fixed or suspended, must be good at the connection between the various parts is not tight, there can be no loosening phenomenon, to ensure the safety of construction. Before installation, we need to check the appearance of the bridge, see whether the surface is smooth and smooth, do not appear to drop the paint, and see whether the welding between the steel is strong.
The role of a variety of accessories is required when the cable tray is installed. The relevant content is explained here. If you are interested in this, you can come to the website www.drcrawfordndms.com news and information at any time.