Work out the construction plan: According to the drawings and survey records, select the installation form of the cable bridge in the different building structure sections; determine the construction organization according to the contract duration and the composition of the construction personnel.
The following regulations should be followed when determining the construction plan:
(1) The cable bridge should be installed on the structures and structures (such as wall column beams, floor slabs, etc.) as far as possible.
(2) The overall layout of the cable tray should be the shortest distance to meet the requirements of construction, installation and cable laying.
(3) The height of the ladder frame or the perforated pallet shall not be less than 2.5m from the ground when laying horizontally; the local height of the wire groove and the non-perforated pallet shall not be less than 2.2m. But laying in special electrical rooms (such as power distribution room, electric steam shaft, technical floor) is excluded.
(4) When the bridge is laid vertically, a metal cover should be added to the part below the 1.8m distance, except for laying in an electrical installation room.
(5) When the cable tray is laid in multiple layers, the distance between layers is generally: ① The top plate or other obstacles on the tray should not be less than 0.3m. ② The distance between power cable trays should not be less than 0.3m. ③ The control cable bridge should not be less than 0.2m.
The bridge frame is a general term for a continuous rigid structural system composed of trays, straight sections of ladder frames, bends, accessories, supports, hangers, etc., used to support cables. It is an installation channel used in horizontal wiring and vertical wiring systems. The cable tray is a cable laying device that enables the laying of wires, cables, and pipes to achieve standardization, serialization and generalization. Here we need to mention the concept of a tray. Many people mix the tray with the tray and think that the function is basically the same, but it is not. There is a big difference between the bridge and the wire trough. The main ones are: the bridge is mainly used for laying power cables and control cables, and the wire trough is used for laying wires and communication cables; the bridge is relatively large (200×100 to 600×200), and the wire trough Relatively small; the turning radius of the bridge is relatively large, and most of the trunking is turned at right angles; the span of the bridge is relatively large, and the trunking is relatively small; the fixing and installation methods are different; in some places, the bridge is not covered, and the trunking is usually all with Cover the closed trunking for routing, and the bridge frame is for routing cables. Therefore, everyone should pay attention to the selection of the bridge, so as not to choose the wrong one and not achieve their expected purpose. Types of traditional cable trays mainly include: trough cable trays, tray cable trays, stepped cable trays, large span cable trays, modular cable trays, flame-retardant fiberglass cable trays, corrosion-resistant aluminum alloy cable trays, etc. These are also the most commonly used bridges in China, mostly closed bridges. What type of bridge is used in what kind of environment is a very important question. The trough type cable tray is a fully enclosed cable tray. It is most suitable for laying computer cables, communication cables, thermocouple cables and other highly sensitive system control cables. The shielding interference and the protection of cables in heavy corrosive environments are better. Good results. Tray type cable tray has the advantages of light weight, large load, beautiful appearance, simple structure, convenient installation, etc. It is suitable for the installation of power cables and the laying of control cables. The stepped cable tray is suitable for the laying of general straight, light and large cables, especially for the laying of high and low power cables. ......These bridges have their own merits, but in terms of energy saving and optimizing cable performance, they are not as good as open structure bridges.
Install the app
There are mainly several types of bridge installation: installation along the roof, horizontal and vertical installation along the wall, installation along the shaft, installation along the ground, installation along the cable trench and pipeline support, etc. Support (hanging) for installation
The frame can be finished or self-made. The fixing methods of support (hanging) frame mainly include welding on embedded iron parts and fixing with expansion bolts. Wherever there is a cable, there is a bridge. The application range of the bridge is quite wide, and all walks of life are involved, most of which are used in data centers, offices, Internet service providers, hospitals, schools/universities, airports and factories, etc., especially the data center and IT room market is the future bridge A very large piece of application.
Society is progressing and products are being updated. Bridge products also have more room for development. Energy conservation and environmental protection are the mainstream of all walks of life nowadays. The most important thing is to produce energy-saving, beautiful, convenient and fashionable bridge products, innovative and efficient data cable management systems, and to provide maximum safety protection for all types of cables and installers. .