【 Weak current College 】 room infrastructure

1. Overview of the science and technology development, electronic computer today more and more widely used in all fields of national economy, which requires that the computer must be stable, reliable operation to protect the entire system to work properly.　　Electronic computer correctly depends not only on their own hardware and software configurations, and external space — the computer room environment. Room construction combines computer technology, network technology, communication technology, construction, decoration, air conditioning, electrical, electronic, automatic detection and control, environmental protection, safety precautions, anti-stem cupped, multidisciplinary and integrated systems engineering.　　I am in the comprehensive knowledge of the various professional technology, based on the successful experience of the past set, grasp the development of modern computer technology, proposed the "systematic, integrated and intelligent" room construction concept. The rapid development of modern, level, many advanced devices with the use of increasingly more important. Similarly, the inclusion of its equipment caused by the double room has a modern management consciousness of people's attention.　　An advanced, rationality and practicality, scalability, can be displayed, unique design, wood construction of novel, elegant room, must have a certain historical life.　　1.1 design goals to ensure that a variety of precision equipment, stable and reliable operation of security staff, good working environment features complete, professional standards, technologies elected to, economic reasonable, security utility, quality, management convenience purposes in economical, select high-quality machine room exclusively decoration materials, the best decoration effect.　　1.2 design pursuant to the civil construction electrical design code (JGJ/T16-92) of the electronic computer room design code (GB50193) of the electronic computer room construction and acceptance (SJ/T30003-93) of the computer room with a movable floor technical conditions "(GB6650) the computer station site safety requirements (GB9361-88), the interior decoration project quality standards" (GB1838-93) the automatic fire alarm system design (GBJ116-92) the automatic fire alarm system construction and acceptance (GB50116-92) the construction interior trim design fire protection standard (GBJ79-85) the fire extinguishing system for low-voltage distribution design code (GB50054-95) the building mine design code (GB50057-94) the civil architecture lighting design standards "and" industrial enterprises lighting design standards (TJ34-79) in the treatment of confidential information of electromagnetic shielding room of technical requirements and test methods "(BMB3-1999) of the communications room general rules for static electricity protection (YD/T754-95) of the environmental electromagnetic health standards (GB8715-88) of the electromagnetic radiation protection regulations (GB8702-88) the project pipeline construction and acceptance (GBJ235) 1.3 engine room environment design indicators in accordance with the electronic computer room design code of the request, the room area in the use of machine room exclusively used air conditioner: temperature: 23 ° c ± 2 ° c (summer), 20 ° c ± 2 ° c (winter) humidity: 55% ± 10% humidity change rate: < 5% no dew dust: International B-class, diameter ≥ 0.5 μ m its number ≤ 18000/d3 noise: 68dB (host operator position; computer downtime) illumination: room ≥ 400LX; auxiliary room ≥ 200LX; emergency lighting ≥ 50LX grounding resistance: R ≤ 1 Ω, zero to potential difference ≤ 1V 1.4 room design requires a computer room supply should have a separate power supply circuit, using three-phase five-wire system computer room equipment power supply and air conditioning supply should be two independent circuit, where the device power consumption should be the total by device 1.5 times are reserved, and air conditioning electricity according to the requirements of supply and air conditioning equipment.　　Computer room outlet should be divided into three types, namely: uninterruptible power supply (UPS)-powered computer dedicated GFI, uninterruptible power supply (UPS)-powered device with 3-hole standard socket, power supply devices directly with 5-hole standard Sockets.　　Computer room equipment power supply voltage change should be within ± 5% 220V, frequency changes should 50Hz ± 0.5Hz.　　Computer room lighting shall consist of work lighting and emergency lighting (E) two classes, work lighting access distribution Cabinet, emergency lighting access UPS computer room lighting should be glare-free light, lighting brightness inductotherm 300LUX, emergency lighting brightness should be greater than 60LUX computer room within the distribution system should take into account and the emergency lighting system with automatic switching and a fire protection system of linkage.　　1.5 decoration itemized description ⑴ decor decoration materials should conform to the computer room design requirements, selection of hermetically, not dust, easy to clean, and with the long-term use of deformation small material, floor shall meet the requirements of computer technology, the process should be reasonable. ⑵ smallpox computer room ceiling uniform made of aluminum alloy plate ceiling installation with light steel keel, keel schema consists of the main bone shaped galvanized and t-joist composed of two layers, trough the primary bone by adjustable screw connection with building floor, Seung hung the whole weight of the ceiling of truss-out scaffold, and to exact adjustment of the ceiling plane. T-type keel by special pendant fixtures to channel main bone, is used to clamp the smallpox artboard.　　Such a ceiling installation process is appropriate for the opposite consistency requirements, requires disassembly and overhaul and tightness, noise effects, high demands on occasion. ⑶ floor room are made of raised floor.　　Its characteristics are: reserved space for easy system wiring, high load-bearing capacity, convenient for placing of the equipment in the engine room, unassembled for easy maintenance of the system, the activities under the floor of the air conditioning system air supply pressure to the library (or static pressure Chamber), the Panel is anti-static treatment, General resistance value 1 × 107-1 × 1010 Ω. ⑷ Wall room interior walls with aluminium composite material, the decoration material aesthetic durability, fire, itTo clean.　　Aluminum-plastic plate for light steel keel — plasterboard structures for substrates installation, aluminum-plastic plate metal surface entirely by wire to connect to the receive location to achieve good electromagnetic emissions (EMI) and electrostatic shielding effect. 1.6 electromechanical system ⑴ distribution engineering computer room equipment including computer equipment, peripheral equipment, auxiliary equipment and engineering process equipment four most, computer room of supply and distribution system is designed to meet the requirements of this part, in order to guarantee a stable and reliable power supply and services.　　Computer room of supply and distribution system is the engine room key projects in the works, a comprehensive supply and distribution system, building a computer room must establish a high-quality, stable, reliable supply and distribution systems.　　Main power: the computer power supply system consists of a main equipment 40KVAUPS combination systems, uninterruptible power supplies established by the dedicated cable to the load distribution panel, supply connection computer dedicated socket using the master device.　　Computer-aided equipment power supply (such as air conditioning, lighting, maintenance, etc.) from the floor Cabinet respectively lead to various distribution Cabinet.　　Power: 380/220V 50 Hz low-voltage distribution system with three-phase five TN-S system i.e. wire, single-phase and three-wire system for ELV equipment without current security protective grounding, electrical parts is a core part of computer labs, directly related to computing devices can run securely and reliably, each room has a power distribution Cabinet, all distribution Cabinet of main distribution switches are with shunt release for accident situations emergency shut-off power, the Cabinet is equipped with a voltage meter to monitor the supply voltage and current and phase equilibrium relationship. ⑵ lighting engineering computer room lighting quality standard choice, not only affect computer operations personnel and hardware maintenance staff efficiency and body healthy, but also for the reliable operation of your computer.　　As a rule of thumb, per square metre 14W lighting power configuration, you can compare the spacious room, away from the venue 0.8 metres to reach 400-500LX of illumination, in full compliance with the GB2287-89 computing station site technical conditions ". Because the engine room ceiling, floor, walls and other surfaces are made of soft material, so the engine may not produce under high illuminance, keep bright glare, clear environment. Engineering lamps equipped with photometric curve amplitude airfoils, illumination uniformity, and Batts matching, you can get a good visual effects. According to requirements, computer room must be equipped with emergency lighting system, of not less than the required illuminance 50LX.　　Emergency lighting system consists of a UPS power supply, computer room area each lamp set a fire emergency lighting tubes, channel set evacuation led.　　⑶ lightning protection project in the engine room AC input (requires three five-wire system), power distribution Cabinet into line-side installation of high-speed, large-capacity to absorb the lightning, lightning or power line AC power system with high potential to counterattack, the protection of the engine room air conditioning, UPS, etc. use the power of the load.　　⑷ earthing project proposals to the engineering safety protection, the Thunder, antistatic ground use building integrated Earth system, the engine all electrical equipment, metal pipe, metal ceiling, all steel antistatic floor, metal panel frame are firmly connected building integrated Earth, Earth resistance not more than 1 ohm.　　Adopt anti-corrosion long-term Jiang zuji, characterized by reducing resistance effect is good, stable performance, service life of 15 years.　　Power output in line with Earth wire between the voltage should be not less than 1 v, regardless of whether or not the computer turned on, the voltage value still must not exceed 1 volt.　　Earth wire with the introduction of ground electrode to a power source, configure the galvanized pipe protection and properly fixed.　　⑸ conditioning if building room area is not very large, it is recommended that a building system for central air conditioning system, saving costs.　　⑹ outdoor air systems engineering in order to meet the engine room staff on fresh air, and you can keep the positive pressure within the engine room, guarded unclean air invasion, the engine should have fresh air system, the fresh air after the early, intermediate and high efficiency filter, enter the engine room.　　Selection of fresh air, as designed to select: not less than the total volume of air conditioner 15%, meet new air volume of not less than per capita 40m3/h, the engine room inside and outside pressure: 7-12Pa. If building room area is not very large, it is recommended that a building system air supply system, saving costs.