Thinking about the wiring form of server room

In accordance with national standards, the computer room is divided into a, B, c three categories, a class room generally used on the line, B class room has on the line form, there are also up and down the combination of the line of the form, C class rooms generally use the next line of the form. Each type of wiring has advantages and disadvantages, the key to see the room needs.

First, the computer room wiring way Choice

Large, hub of the computer rooms are used on the way, such as telecommunications institutions and the data center of the computer room. These rooms are a Class A room, they use the way up the line, it is because of some advantages of the line to improve the reliability and usability of the room, its main advantages are: The face of a large number of cable, easy maintenance and repair and line adjustment, easy to heat the cable, especially for power cables; Because there are no large grooves in the floor. , it is convenient for air conditioner to send wind, is advantageous to the room temperature humidity distribution more evenly, reduces the air-conditioning load, facilitates the direct observation to the fire, the smoke and so on, is advantageous to the fireproof safety. On the way to the shortcomings of the line is higher cost, the room of the high requirements, may not be able to meet the demands of room beautification. In addition, because the cable of communication system often need to adjust, there are some difficulties in operation. However, these problems are not a type of computer room's main concern, because the size of such a large scale, capital investment is guaranteed, and the reliability and availability of the room is the main concern, so staffing and equipment investment are relatively adequate, the above problems can not be difficult to solve.

At present, Class B computer rooms are also gradually popular on the way, such as branches around the bank of the computer room. This is because the availability of computer room needs to increase significantly, the next line brings the problem is really difficult to solve, so gradually transformed into the way to go up. But the B class room is not like a class room as there is sufficient conditions, often by the computer room structure, cost constraints, beautify the environment and other factors such as the serious constraints, making some room on the line become nondescript, the advantages become inferior. For example, some of the computer room too much emphasis on beauty, unexpectedly will be on the line of the bridge set in the ceiling concealed up, so that not only the visibility of the line has disappeared, but also increased the risk of danger. Because B class room of the line adjustment is more frequent, the original line adjustment on the line is difficult, this will also have to remove the ceiling of the process, not only increased the operational complexity, the ceiling in a number of disassembly after the deformation. At the same time, due to the increase in operating tools and operating time, the possibility of dropping tools or other sundries above the equipment is greatly increased, which poses a threat to the stable operation of the equipment.

Compared to a class room, B class room According to the need for line adjustment of the situation is relatively more, the total number of cables is relatively small, and some objective factors make the line adjustment becomes difficult, such as the room building layer is not ideal, if you must take the line, in a narrow space for threading, line, draw line and other operations is a very troublesome thing. In this case, it is necessary to change the form of the bridge to ease the contradictions, and not blindly follow the engineering practice. More Wonderful content: http://www.bianceng.cn/Network/zhbx/

C Class room importance is lower, the scale is also very small, the computer room Capital invests is limited, therefore generally uses the down line way. This kind of wiring way construction is simple, the cost is low, can control the engine room overall effect more flexibly. But under the floor fire is a need to pay attention to the problem, the domestic has occurred a number of engine room fire incidents, after the investigation that the strong electric line has a fire hidden dangers, such as when the air-conditioning leaks, may cause short circuit, sparks, causing a fire. The National Fire Standard also stipulates that the floor under the clearance is greater than 300mm, to set fire alarm and fire gas vents.

Two. Room Wiring improvement Suggestion

Usually, the machine room on the wire groove is to use a number of 8mm or so steel bar hanging up, spaced about 2 meters to set a pair of hanging tendons, but also useful other materials hanging, but the same form. Such a hanging method in the line or pick up the line, you need to pass through from the beginning to the end of every pair of hanging tendons, to the line groove cover down, cable from the top of the groove down or out, frequent operation is obviously unsafe, and time-consuming. If you change the line from the side of the groove into or out of the cable, eliminating the threading process, will effectively reduce the difficulty of cable adjustment, as shown in Figure 2. The use of 40mm-wide angle steel bar, ceiling above part of the production into a stable supporting structure, the following part of the ceiling made into a inverted T-shaped structure, the groove placed in Figure 2 in the position shown and fixed. A side of the groove has no occlusion, the cable can be placed on the ground, comb and strapping, a one-time lift from the side into the groove. Of course, due to the line slot in the air, the process of landing adjustment is unavoidable.

In addition, the power cable on the line should use trapezoidal line frame, do not obscure. This is because the power cable calorific value, insulation skin aging cracking, when the load increased too much, cable may smoke or fire, through direct observation, can effectively prevent the expansion of the accident. As the power cable is rarely adjusted, the cable should be loose and tidy, which is beneficial to heat dissipation and aesthetics. Communication cable adjustment More, also relatively disorderly, calorific value is very small, can be placed in a closed galvanized groove, conducive to aesthetics.

Three. Computer room wiring Other attention problem

The choice of wiring form of room is not independent, need to coordinate with other systems, such as power supply system, air-conditioning systems, fire fighting system, integrated wiring system, especially with air-conditioning system, is one of the important factors to determine the wiring form, in overcoming the constraints between the various systems can achieve the desired design effect.

Room air-conditioning system is generally divided into side and down to send wind two types, installed overhead floor of the room most of the use of the lower air supply mode, which is due to the next mode of air supply with the best refrigeration effect and efficiency. Floor space (clearance) to form air conditioning ventilation channel (also known as static Pressure box), the floor on the reasonable distribution of the tuyere, can make the room temperature and humidity of various locations to be balanced control. When the use of the next line, if the wiring under the floor will form wind resistance, resulting in increased resistance to the wind, the line layout can only be in the computer room on the periphery of the ground to fork-tooth structure installation of the bridge, and analysis of the wind direction, as far as possible to reduce the resistance to the Because the power cable is near to the ground, it is necessary to guard against the influence of the air conditioner leaking and the damage of the power cable caused by man-made. The use of the upper line, if the upper space is insufficient, the line layout is Multi-layer bridge, it will affect the air conditioning system of the return path, resulting in the return of wind speed and temperature rise (that is, the enthalpy of increase), resulting in increased load of air-conditioning system. This requires the upper line as far as possible using a single layer of the layout of the bridge, and adjust the layout of the equipment, otherwise it is necessary to choose a higher level of the building as the room, to the air-conditioning system to leave enough air return channel. Also some of the room using the upper and lower line of the combination of ways to simplify the layout of the bridge frame to meet the air conditioning requirements. This kind of coordination problem in B class room more see, its air-conditioning system mostly using the lower air supply, wiring form according to the conditions of the use of the upper line or up and down line combination of ways; A class room basically eliminates the restriction condition, the air conditioning system uses the below to send the wind, the wiring form is the up-going line; C class room generally use down line, using a number of cabinet air-conditioning to the side of the air supply mode refrigeration, to avoid the next line of restrictions.

Room wiring form Once determined, the need to strictly in accordance with the norms and standards of integrated wiring construction, especially to pay attention to the quality of optical fiber fusion link. Multi-mode fiber is used extensively in the room its tensile capacity is limited, its material and precision determines the optical fiber can not be moved to move to change, so in addition to according to the specification of fiber optic fiber, the end of the weld quality is the key factor affecting the quality of optical fiber communication, the less the loss of melting point, the better, Practice can be done 0 or 0.01db, the general requirements are not greater than 0.05db. Through reasonable wiring planning and high standards of construction, can lay a solid foundation for the safety of the computer room.