Wiring Design and implementation of a new office building in a Northwest Electric Power Design Institute

A Northwest Electric Power Design Institute is a well-known design consulting and engineering contracting enterprise in the Chinese power industry. National level a qualification certificate for power engineering design, survey, consulting, supervision, general contracting, environmental impact assessment, pressure vessel design, construction engineering, etc. It ranks among the top Survey and Design Enterprises in China. As the production management organization of the Design Institute, the office building of the research and development base of the Design Institute is gradually widely used in a variety of data services. To ensure the high-speed, safe, reliable, and flexible operation of the network system, and meet different user requirements. The integrated cabling system created in the building will provide high-speed, standardized, reliable, and dynamic transmission channels for voice and data transmission in the building.

Screen. width-333) this. width = screen. width-333 "border = 0>

The ground floor of the building is 11 floors above ground. The building height is 44.85 meters and the building area is about 34900m2 square meters. The main functions of each floor are as follows: equipment room, computer network system UPS room, and garage on the ground floor; the first floor includes the lobby, property management, program-controlled switch room, total distribution frame room, building intelligence and fire control center, printing and publishing center, and restaurant; the archive, meeting room, reception room, office, etc. are on the second to seventh floors, network center and office on the eighth floor, and meeting room and office on the ninth to eleventh floors.

The building wiring system supports multiple computer network protocols and information interconnection between devices of multiple manufacturers. It can adapt to various flexible and fault-tolerant networking solutions. At the same time, with the development of computer network technology and enterprise business development requirements, the wiring system should be able to meet the bandwidth requirements of high-speed LAN. The wiring system adopts a modular structure to facilitate system expansion and modification. when the device is moved, you do not need to change the wiring. You only need to patch cord on the corresponding distribution frame. As the floor cushion of this project is thin, horizontal cabling should be directly routed to office partitions using flat cable trough in the room, and combined ground plug-in boxes should be used in the leading office and large meeting room of the hospital.

The principle of information point layout is as follows: each partition in the big open room office is a work area; each work area has three information points with one voice and two data points); a large area office is directly laid with Optical Fiber points; other offices are arranged according to actual needs; one weak current room is arranged for each layer 1 to 9 and 11; four information points are set up for elevator equipment rooms, and 14 information points are set up for underground garages and UPS data rooms.

The total number of information points is more than five thousand three hundred points, including six types of unshielded information points and 10G optical fiber points. This project adopts a physical star structure to adapt to the development and application of network technology. The system is easy to expand and connect for easy maintenance and management.

The architecture of the Integrated Wiring Scheme is described as follows. The subsystem of the building work zone consists of various work zones. According to the information point setting principle, each work zone is configured with single-hole and double-hole sockets. Each dual-hole socket is designed based on one data point and one voice point. All sockets adopt standard six-class information modules. At the same time, the Panel style of the information outlet must be consistent with that of the strong electrical panel.

The horizontal wiring subsystem consists of six types of twisted pair wires and optical fiber cables from the floor wiring room to various work areas. All copper cables of the horizontal cables use cat6 unshielded twisted pair wires. The cabling length of the horizontal subsystem Cables cannot exceed 90 meters. The horizontal cables are point-to-point connections between the distribution frame and the information outlet in the wiring room. Any operation that changes the system does not affect the operation of the entire system. It is transparent to the upper-layer system, including the network device layer and the software application layer. It provides convenience for system line troubleshooting.

To meet the needs of computer networks and multimedia development in the future, an optical fiber information outlet is set up in the big open room office and large meeting room. For the information outlet from the optical fiber to the room, the level sub-system is equipped with four cores, 50/125 multimode optical fiber cables or 9/125 single-mode optical fiber cables. Each optical fiber information point is equipped with a four-core optical fiber cable.

The voice part of the trunk line subsystem adopts three types of 25 pairs of unshielded pairs. The data trunk optical fiber cable uses a 6-core, 50/125 multimode optical fiber cable. Two 6-core multimode optical fiber cables are laid between the distribution rooms at each layer and the eight-layer information center, each wiring room and eight-layer information center are equipped with 12-port and 24-port optical fiber distribution frames. Cat6 unshielded twisted pair wires are used at the same time. Four cat6 unshielded twisted pair wires are laid between weak current cables at each layer and the eight-layer information center. And optical fiber.

The management subsystem is set up in the floor distribution room of the building and the information center room on the eighth floor. It is mainly responsible for the unified management of information on the floor and information channels on adjacent floors. Multiple network wiring equipment cabinets are installed in the wiring rooms on each floor, and a scalable rack is reserved for the future.

The sub-system of the inter-device voice cabling room is located on the first layer. It is equipped with a Programmable switch and a general distribution frame to manage the main voice cabling system of the entire building. The data cabling room is located in the information center on the eighth floor. It is used to manage the data trunk of the entire building. On the data distribution frame of the equipment room, it is installed with twisted pair wires and optical fiber distribution frames, connects twisted pair wires and optical cables from weak current cables on each floor.

The cabling implementation scheme is introduced as follows: according to the different building planes, room areas, use functions, and decoration of each floor of the building, there are three installation methods for information sockets: Fixed wall, it is mainly used for small offices, equipment rooms, lobby on the first floor, and cylinder. The sockets are usually installed on a wall of 30cm square meters from the ground or on the floor. In the underground garage, the information outlet is usually installed 1.3 ~ The wall is 1.6 meters long. Ground Line box plug), mainly used for leading offices, meeting rooms, etc. The ground cabling box includes an information outlet, a voice outlet, a three-hole power 220 V) outlet, a two-hole power 220 V) outlet, a projector outlet, and a microphone outlet; the information socket installation on the office furniture factory works with the office furniture factory. The basic principle is that an information socket is installed on the partition under the computer table, and two information sockets are installed on the partition computer desktop.

Information socket panel should be applicable to type 6 RJ45 single hole, double hole socket can also use porous socket ). There should be text or patterns on the porous outlet to distinguish the voice plug-in and data plug-in. The fiber socket is a four-Core LC connector. All socket Panel sizes are 86x86. The information outlet panel must have dust prevention measures. The data jumper uses factory 6 category 4 pairs of forming cables. ,

After the horizontal cable and optical cable are extracted from the floor wiring room, they are laid along the cable tray in the ceiling to each room with information points, then, the cables and optical cables are directed to the corresponding information outlet through on-site drilling and buried pipes and flat slots of different specifications in the column, in the wall, and on the ground. The cable in the office furniture is enclosed by a flat-ground cable trough less than 30mm high. The cable is mounted to the desk partition and the desktop along the cable trough in the office furniture. At the same time, the data center on the eighth floor and the intelligent fire control center on the second floor form an overhead floor. Horizontal cables are laid along the ground trough under the overhead floor to the distribution frame.

Network distribution frames and switches are installed in the floor distribution room. All distribution racks must be 19 "modular components, which can be conveniently installed in 19" Standard cabinets. the rear part of the distribution rack has a fixed cable bracket. The information outlet module on the distribution frame should be marked with the serial number and serial number, with the function of distinguishing words or patterns, and the dust prevention measures should be taken. 2 fans should be installed at the top of each cabinet, and vertical cable trough should be installed at four corners of the Cabinet, one AC power plug-in is installed vertically on both sides of the equipment cabinet, lighting light source for maintenance, keyboard tray for maintenance), reliable connection between various equipment cabinets should be fixed, no side plate between cabinets. Cabinet size: 800mm width) x 1000mm x depth) x 2200mm height ). Equipment cabinets should have front and back doors with locks), and the front door is a glass door, the Cabinet color should be uniform, the bottom of the equipment cabinet using galvanized angle steel bracket fixed, the height of the bracket is 300.

In the vertical direction of the wiring room of each layer of the building, there is a closed cable tray from the first floor to the eleven layers, the bridge specification is 400mm x 200mm width x depth ). All cable trays should be reliably connected and each layer should be grounded at least two points.

On the first layer ~ Wiring rooms for each floor on the 9th and 11th floors. The area of the weak current room is about 18 m² square meters. To fully consider future information development needs, point-to-point multi-mode or single-mode optical fiber, voice, and data cables are laid from one data center to eight data centers. Laying data and voice cables for multimedia, electronic conference rooms, and public places.

Horizontal cabling cables use four pairs of cat6 unshielded twisted pair cables with strip-to-isolator. cat6 twisted pair cables must use a line-to-cross isolation structure, printed on the cable jacket, the words, brand, model, specification, and so on.

Both horizontal and vertical multimode optical fibers are 50/125 m multimode optical fibers, which must comply with the technical performance requirements of the OM3 10g. All single-mode optical fibers use optical fibers that comply with the ISO11801 Second Edition) standard.

The trunk cable adopts a loose or skeleton structure and must have a non-metallic protective layer. The flame retardant grade is CMP grade. Connection hardware such as information sockets, modules, conversion connectors, and cross-connection distribution frames must meet or exceed the requirements for connecting optical fiber cables, category 3 cables, and category 6 cables in iso11801.

After the implementation of the project, the information points should be tested according to the permanent link standards of the six types of systems, and the optical fiber points should also be tested and accepted according to the optical fiber test specifications. At present, this project is designed and installed by Xi'an Silian smart Technology Co., Ltd. using CLIPSAL Titanium 6-class system products and optical fiber products, which is well received by users.