A comprehensive data center room construction generally includes: integrated wiring, anti-static floor laid, roof and wall decoration, partition decoration, ups power supply, constant temperature and humidity air conditioning, computer room environment and power equipment monitoring and control system, air system, leak detection, ground system, lightning protection system, access control, monitoring, fire control, alarm, shielding engineering, etc.
1. Fire control system
The air extinguishing system should be set up in the machine room, and the air bottle room should be set outside the machine room. It is a tubular network structure and a nozzle should be set on the top of the ceiling.Gas fire control system should be adopted in the fire control system of the machine room
2. Precision air conditioning system
The role of the computer room precision air conditioning system is to ensure room equipment can continuous, stable and reliable operation, equipment and other heat sources need to discharge the telecom room send out quantity of heat, maintain a constant temperature and humidity in the room, the air dust content and control room.Therefore, the precision air conditioning system of the machine room is required to have the ability of air supply, air return, heating, humidifying, cooling, dehumidifying and air purification.Precision air conditioning system of machine room is the most important equipment to ensure good environment of machine room.
3. Monitoring and access control system
There are a large number of servers, cabinets and racks in the monitoring booth.As these cabinets and racks are generally relatively high, there are more dead ends for monitoring. Therefore, the main consideration is to install cameras between each row of cabinets in the TV monitoring layout.If there is a large space at each entrance and exit, the camera with zoom can be considered. Between each row of cabinets, a fixed focus camera can be equipped according to the monitoring distance.If there are multiple rooms in the machine room, consider installing cameras in the ups room and the control room.
The door control system of the machine room adopts non-contact intelligent IC card integrated management system.The system can flexibly and conveniently stipulate the personnel, time and authority to enter the machine room, prevent the destruction caused by human factors and ensure the security of the machine room.
4. Shielding system
Electromagnetic interference has a great impact on computer equipment, which may cause misoperation and data loss, or make the computer unable to work.The shielding in the machine room mainly prevents various electromagnetic interference damage to the equipment and signal in the machine room. There are two common types: metal mesh shielding and metal plate shielding.Electromagnetic interference within the computer room in our country's requirement: the room radio interference field strength in the frequency range of 0.15 ~ 1000 MHZ is not greater than 120 db, room interference field strength in the magnetic field is not more than 800 a/m (rather then 10 oe).According to room size is different to the requirement of shielding, shielding the discretion of the frequency spectrum, material and construction method of shielding system selection, the indicators requirements shall be in strict accordance with national standards.
5. Ground system
Room should install a good grounding system, the power of a stable zero potential, as the reference voltage of the power supply system voltage, have a good grounding line, computer power supply voltage of transmission and the met or producing all kinds of interference signal, can through the high and low frequency filter capacitor filter it out.In addition, when encountering lightning, strong power source near the cabinet and electric spark interference, a good machine room grounding system should be able to protect the computer.
Therefore, it is quite important to design a good machine room grounding system. The machine room grounding system is generally divided into the following three types:
Dc to: (1) the grounding system is the power supply output through a fixed ground, making it a stable zero potential, the power supply ground wire directly connected to the earth, and a small grounding resistance;
(2) ac ground: this grounding system connects the ground wire of the ac power to the connection point of the motor, generator and other ac electric equipment, and then to the earth;
Safely (3) : in order to shield interference, leakage and edm, all computer cabinet, chassis, chassis, panels and motor shell needs to be grounded shielding, the system can be used to safely.
General requirements: dc ground resistance is less than 1 ohm, ac ground resistance is less than 4 ohm, and safe ground resistance is less than 4 ohm.Four kinds of grounding devices, such as ac working grounding, safety protection grounding, dc working grounding and lightning protection grounding, are suitable for sharing a set of grounding devices, whose grounding resistance is less than 1 ohm.The grounding system can be connected in various forms, such as radial system, circular system or grid matrix system.
6. Anti-static floor laying
In the construction of machine room, ground project is a very important component, the floor of machine room USES antistatic floor commonly.The movable floor is mainly composed of two parts.A) anti-static movable floor surfaces;B) floor support system, mainly beam support Angle (the support Angle is divided into upper and lower supports, the screw can be adjusted to adjust the floor level).The size is mainly 600*600mm. The laying height is 350 + / - 20mm.
Movable floor has disassemble characteristic, accordingly, the connection of conduit cable of all equipment, conduit and repair change are very convenient.Floor space can be used as a static pressure air supply under wind of library, and through the activities of air distribution tuyere send the room air conditioning cold air into the indoor machine cabinets and heating equipment, air draught on the floor with general floor interchangeability, so are free to adjust the distribution of airflow in the room.The ground surface below active floor needs to undertake moistureproof processing commonly (if rinse moistureproof lacquer, etc.), when antistatic floor is installed, ask to install electrostatic leakage system at the same time.Static electricity leakage network is laid, and the static electricity is leaked by sealing the grounding terminals of the main line and the safe protection ground of the machine room.
7. Power distribution system
1) ups power supply without interruption
Computer room load is divided into main equipment load and auxiliary equipment load.Main equipment load refers to the computer and network system, computer peripheral equipment and machine room monitoring system, this part of the power supply and distribution system is called "equipment supply and distribution system", the power supply quality is very high, ups uninterruptible power supply should be adopted to ensure the stability and reliability of power supply.Auxiliary equipment load refers to air conditioning equipment, power equipment, lighting equipment, test equipment, etc. Its power supply and distribution system is called "auxiliary power supply and distribution system", and the power supply is directly supplied by the municipal power.In the high demand machine room project, ups uninterrupted power supply can adopt the direct parallel technology and its power supply and distribution system is called n+1 redundant parallel technology.It can make sure it has a ups fails, will still be able to provide all the load continuous high reliable power supply, and the need to add capacity, only the existing weaver system directly in parallel, do not need to add new ups power supply system, can effectively save the cost.High quality cable, cable channel and socket should be selected for electrical construction in the machine room.Sockets shall be divided into municipal power, ups and special waterproof sockets for main equipment.
2) power distribution cabinet
The machine room usually adopts special power distribution cabinet to standardize the power supply and distribution system of the machine room, so as to ensure the security and rationality of the power supply and distribution system of the machine room.The distribution box and cabinet shall be protected by short-circuit and over-current, and the emergency power off button shall be interlocked with the fire alarm.After installation, number and indicate the purpose of each switch in the box and cabinet for operation and maintenance.The spare circuit is reserved in the distribution box and cabinet to power the equipment expansion of the machine room.
Above is from the power distribution facilities, weak current control and protection equipment, several problems that should pay attention to construction of computer room for a simple description, actually room construction project is a collection of computer network technology, communication technology, the building decoration, weak current control, air conditioning, electrical, electronic, automatic detection and control, environmental protection, safety and anti-interference multidisciplinary integrated system in the field of engineering.A is advanced, rationality, practicability and expansibility, can show exquisite, unique design, new material and construction at the center of the room, must have certain historical vitality, the following look at the design of the data center room construction insist right direction key problems.
Conclusion:
There are many other considerations in the construction of new data centers.But industry experience tells us that in the process of data center construction and design master this 13 key basic setup key, will ensure that the final data center design as close as possible to the user's real needs.
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