Computer rooms

 Highly developed in modern science and technology today, more and more widely used in computer fields.?In recent years in China have mushroomed into a lot of large, medium and small computer rooms of all sizes.?The computer room of this emerging industry has gained rapid development.Computer room air conditioning is related to technology, supply and distribution technology, anti-jamming technology, lightning protection and over-voltage technology, clean technology, fire technology, security technology, construction and decoration techniques, and other professional and comprehensive in the industry.?Reliable operation of electronic computer electronic computer room to rely on the strict technical conditions to guarantee. 
    In order to ensure stable and reliable operation of computer systems, computer room, computer systems must be met and staff on the temperature, humidity, cleanliness, wind speed, field strength, power quality, noise, lighting, vibration, fire, theft, lightning, shielding and grounding?requirements.?You must seek and build computer systems to fully perform its functions, to extend machine life, and to ensure physical and mental health staff, and meet the requirements of the appropriate venue, the computer room.

Building needs of the computer room
??? Certain computer room is now used for many years the engine room, engine room early due to the construction of smaller companies, computer room, planning room and did not follow the standard way to build.?Is due to renovation plans will affect the size of the existing floor space, engine room equipment is also increasing due to the original planned space, power, air conditioning, has been insufficient use, so decided to move the engine room.?The growing importance of the engine room, in order to facilitate management, computer room, equipment room in accordance with the requirements of the standard plan, and to enhance fire safety, security, part of mine.

Anti-static floor

    ?Asked to do room floor dust, water moisture, mold, anti-static, insulation, insulation, and other treatment.?Floor plate surface elevation 300 ~ 350mm, need to have enough space to form a net pressure air under the floor for the library and distribution system with the design and construction.?The design uses a steel anti-static flooring, which is characterized, all steel components, high mechanical properties, bearing capacity, fire resistance; surface of electrostatic spray, soft, wearable, anti-corrosion treatment; it is anti-?static performance, anti-pollution, easy to clean, attractive appearance, flexible assembly and easy maintenance, durable, good stability, the indicators have reached the national standard.Surface resistance: 5X105-2X10 10Ω load bearing support force 2273kgf force 455kgf Department of load are (44500-84863) N / m 2, floor size tolerance (-0.1 ... 0.25) mm, flatness (0.17 ... 0.5) mm, standard?in three models: light, medium, heavy, support height (150-500) arbitrary choice, the measured static impedance 1x10 8 ... 1x10 9Ω, may warranty 15 years. 
     Corrosion of steel floor is a non-combustible objects, the floor surface using conductive epoxy spray.?And the surface can paste decorated with a variety of floor coverings, such as HPL, PVC carpet, good antistatic properties, easy cleaning, installation, replacement.

Cabling System Design

    ?PDS is a modular, highly flexible building or buildings within the transmission of information between the channels is of intelligent building "information superhighway."?It enables voice, data, video equipment and switching equipment and other information management systems connected to each other, but also make these devices connected to the external communications network.The choice of network cabling specifications affect the operation of the entire network after the completion of performance, maintainability, scalability and availability.?According to the actual situation of a certain technology and our engineering experience, network cabling cabling system used by the U.S. COMMSCOPE to achieve.

Sophisticated computer control system room air conditioner

     ?Units using the world's most advanced level (English Language Optional display) computer control system.?In addition to the general computer control system necessary for precision air-conditioning control room and work status display, it can also be: remote network monitoring; unit timer switch and auto-run function calls; micro-controller units can also be withdrawn at any time the load?working condition parameters and operating files.?Fully meet the high-tech environment of temperature, humidity, air supply and the special requirements of air cleanliness.

Room power system

1、line wiring

　　 Security Fire Bureau of Guangdong Province under the provisions of the engine room of the wires used in power supply wiring should comply with fire safety, namely through the Fire Department certification.?Therefore, a new flame retardant used in all indoor wire conductor group.?To meet the computer room of the moisture measures, in addition to the ground for some processing, but also to prevent leakage threat to personal safety and anti-electromagnetic interference, all the metal trough, metal ray tube must be completely reliable fused and reliable grounding, grounding resistance R?≤ 4Ω.?Therefore, we suggested the use of brand-name products in Guangdong Jinlong plume cable

2、Grounding system

　　 Grounding system is to a point in the circuit with a wire or a metal casing and the earth together to form electrical pathways, the purpose is to endanger persons or equipment to flow the current easy-to-earth, so in this sense, I hope?grounding resistance as possible.?Another computer system grounding, and also hope to ground current value by the impact of certain external conditions change, so that changes take place along with the potential noise generated should be minimized.?Therefore, the smaller the better grounding resistance.?Note also has the following two points:

a.?Signal circuits and power circuits, high voltage circuit and low voltage circuits should not use the common ground circuit.

b. sensitive to their own isolated circuit ground or shielding to prevent electrostatic induction to return and caused interference.

　　 In today's computer systems, in addition to computer equipment using DC power, it also features a large variety of the use of 380V/220V AC electrical equipment, such as computer peripherals, transformer, motor generator sets, air conditioning, cabinet on?fans, electric irons and oscilloscopes.?Therefore, computer systems exist in several different grounding system:

（1）Exchange of land: in the power system needed for the operation of the ground (such as the neutral ground), should not exceed 4 ohms.With the transformer or generator directly connected to the neutral point grounded neutral line, said the zero line; the zero line of the one or more points once again to make electrical connection with said repeat ground.?Exchange to be reliable neutral ground.?Of points which are not grounded, if a bump to the people they touch another phase, the body will be over by the contact voltage phase voltage, of which the time of the grounding and neutral grounding resistance is very small, then?phase voltage by the voltage equivalent of the human body; the same time, if ungrounded, because the neutral point of resistance to stray very large, so ground current is small; the appropriate protective equipment can not be quickly cut off the power, human and equipment?harm; otherwise OK.

（2） Security protection to: security protection to the engine room is the shell of all machinery and equipment, and electric motors, air conditioners and other auxiliary equipment of the body (shell) and the ground to do a good grounding, should be less than 4 ohms.When the engine room insulation types of electrical equipment is damaged, will be operation and maintenance of equipment and personnel safety at risk.?Therefore, the equipment enclosure should be grounded.

（3） DC Ground computer systems: the logic of reference to the computer itself, less than 1 ohm.

（4）Lightning protection to: the entire building lightning protection system grounding, generally horizontal and vertical ground connection pile buried underground, mainly to lightning current is diverted to the ground by the mine equipment devices, should be less than 10 ohms.

（5）Shield Ground: To prevent electrical equipment, electromagnetic induction and of the metal shell, shield, shield the skin or buildings and other metallic shield grounding.