Cabling slot design in data centers

Cabling slot design in data centers

In the data center, all devices are interconnected through optical fiber cables or cables. Therefore, when you enter the data center, you will see various cables connected to different devices. How to wiring so many cables is a learning. The quality of wiring not only affects the appearance of appearance, but also involves troubleshooting, network adjustment, and daily inspection, good cabling can often save a lot of time. In addition to the Interconnection Lines of devices, there are also power cables and ground wires. These cables cannot be deployed at will. They must be neatly arranged according to certain rules. In order to make these cables more reliable and beautiful, we need to design a cable Trough on the outer side of the cable to pack the cable, which is a protection for the cable and more beautiful at the same time. During house decoration, we did not hide all the cables in the wall or mask them with decoration for the sake of appearance. In the data center IDC, the cabling trough can make the IDC look more neat and orderly.

The cable trough has the advantages of compact and reasonable structure, strong load capacity, flexible configuration, easy installation, and complete specifications. It is widely used in data center network engineering, fire protection engineering, weak current system, broadcast and television fields. The cable trough makes the laying of cable lines and the network cabling of high-rise buildings neat, beautiful, and standardized. It also realizes standardization, serialization and generalization in engineering design, it provides a new way to beautify the environment and secure production. The cable trough features wide application, high strength, light structure, low cost, simple construction, flexible wiring, safety standards, and beautiful appearance. It facilitates technical transformation, expansion of cables, and maintenance and repair. Cable trough is applicable not only to data centers but also to many other fields. It can be used wherever there is a cable. National standards have also stipulated this, in the GB716-1983 and CECS31 91, detailed provisions on the design and use specifications of cable trough were made, these two national standards are the reference basis for cable trough design.

It is not difficult to design the cable trough, but there are many types. In addition to complying with the standard design requirements, the layout slot can also give full play to its subjective initiative. The cable trough is composed of pallets and ladder racks. The ladder frame includes a straight line segment, bending, accessories, and hanger to support cables and has a continuous rigid structure system. According to the structure, it can be divided into Ladder-type cable trough, trough-type cable trough, tray-type cable trough, and trough. If it is classified by material, it can be steel cable trough, stainless steel cable trough, aluminum alloy cable trough, organic material, fire-retardant fireproof cable trough. According to the contact surface classification, there are: Fully enclosed cable trough, semi-enclosed cable trough and fully open line trough. Different types of cable slots should be selected in different environments. If the cable slots are improperly selected, they often fail to provide beautiful and safe effects, which may lead to adverse effects. A few days ago, the Central South University for Nationalities experienced a fire because of the aging of the line. If the cable trough is well performed and the security check is performed in a timely manner, such incidents will not occur. In the data center, cables are the most vulnerable to fire due to fire or line failure. Therefore, cable trough is particularly important. It can protect cables and isolate them from fire sources, at the same time, if the cable itself has a fire, it can also prevent the fire from spreading. The cable trough should not only be beautifully designed and safe, but also be easily disassembled. Once a line is disconnected, you need to open the cable trough for line replacement or troubleshooting.

When deploying cabling slots in the data center, many installation and fulfillment needs to be used for reference. The cable trough can be deployed under indoor walls, column walls, floors or beams. Generally, the data center is deployed under the beam, which is higher than the Cabinet and is about 1 meters above the cabinet. The cables in each cabinet enter the cable trough at the top of the Cabinet. The cables in each cabinet are converged on the top and then merged into the main cable trough, the wiring of each cabinet is eventually summarized together and enters the main cable trough, like a transportation road, which is distributed in the space above the Cabinet and under the beam. The cable trough can be laid horizontally or vertically. When deploying a cable trough, you must note that the water pipe cannot walk on the top of the cable trough. If you want to partially cross the top of the cable trough, the condensation insulation layer must also be made. The space utilization rate of the cable trough should be 40%, and the remaining 60% will be reserved for future changes. There must be some design redundancy. Generally, the metal cabling trough is suitable for indoor drying in normal environments and is not prone to mechanical damage. It cannot be laid in places with severe corrosion. To avoid electrical interference, use a fully enclosed cable trough and a detachable cover when there is flammable dust in the environment. The layout trough also needs to be grounded. metal cables, metal hoses, and various wiring cabinets need to be connected as a whole, and then grounded. In addition, to prevent electromagnetic interference, the distance between the Weak Current Distribution slot and the parallel direction of the strong distribution slot should be more than 20CM apart. There are many optical fiber cables transmitted in the data center, so interference must be eliminated between the cables. Otherwise, the transmission quality of the optical fiber is particularly affected. In this way, an anti-interference isolation material can be added between the optical fiber cables, eliminate external interference. According to the standard cable trough design method, the capacity of the cable trough should be determined according to the outer diameter of the horizontal line, that is, the cross-sectional area of the cable trough = the sum of the cross-sectional area of the horizontal line * 3. To ensure the turning radius of the internal cable, the cable trough must be configured with Branch shafts of the corresponding specifications to provide cable route Bending