Key points and experiences of Integrated Wiring System Construction

With the rapid development of the Integrated Wiring market, many enterprises, communities and families have begun to introduce integrated wiring systems. However, after all, this market is still a market in development, therefore, there are many problems with the construction quality of cabling. I believe that many enterprises and home users are deeply touched by this, for example, an increasing number of household enterprises must spend as much time as possible to meet various business requirements of enterprises, in this case, it is worth pondering what the network cabling system of each room should pay attention to during its implementation.

Before construction

Generally, the network cabling system can be divided into three categories: telephone line cabling, integrated cabling, and Ethernet cabling. They are suitable for different environments, users should have a basic understanding of them before starting the project.

The traditional telephone line cabling system is also called the "household line engineering". Because the system is mainly used to transmit voice signals and narrow band data signals, a pair of copper wires are generally used for long-distance transmission, and the distance can reach 3 ~ 5 kilometers. This wiring can be used to lay a large number of copper cables from the data center in the district to the community. A community can set up several contact points based on the size, and set a distribution box from the access point to the building unit. If a user reports a phone call, the distribution box is directly used for cabling. This wiring project has the characteristics of simple construction, low construction technology requirements, and long-distance transmission.

Smart building wiring is also called Integrated Wiring, A system integration center integrates office automation systems, communication automation systems, and security monitoring automation systems such as power, fire fighting, security, lighting, and air conditioning through integrated cabling systems, achieve the purpose of information management. This wiring project is generally implemented in one or more office buildings, with diversified information points, intensive information points per unit area of 2 information points/10 m²), high transmission bandwidth requirements.

The Community Ethernet cabling adopts a star structure. It is generally implemented in several or dozens of residential buildings through the "Optical Fiber + Five-class cables" mode to provide users with high-speed broadband interfaces. Community Ethernet cabling features five types of lines with a short distance of only 100 meters) and high construction technology requirements. Compared with integrated cabling, the Community Ethernet cabling information is single, with fewer information points per unit area and poor line environments, however, the Ethernet access technology is very mature and standardized. The average port cost is low, the bandwidth is high, and the client device cost is low.

Wiring preparation and procedure

After the network project is investigated and the plan is determined, the next step is the implementation of the project. The first step of the project implementation is the preparation before the project starts: design the actual construction drawing of the integrated wiring, to determine the direction and position of the cabling, consider the following factors: Concealment, damage to the building structure of the building, and avoid power lines and other lines while using the existing space, necessary and effective protection requirements for cables, workload and feasibility of construction, such as bypassing the wall) in the field, etc, the drawings are then provided to the construction personnel, supervisors and supervisors;

Then, we plan the design and budget, determine the routes based on the above conditions, and apply for approval. If you need to bypass the wall on the load-bearing beam, you need to apply to the management department; otherwise, the construction regulations are violated, the overall plan and damage description should be approved by Party A and the management department, followed by the revised plan. Based on the formal planning with the final licensing procedures, the calculation of materials and employment should be carried out, and the budget, construction period, construction scheme and arrangement should be put forward based on the costs of management operations during the design implementation. In the implementation scheme, the degree of cooperation between users must be considered. The implementation scheme should be approved and signed through consultation with the user, and designated coordination personnel should designate the project owner and project supervision personnel, and be responsible for planning materials preparation, preparation, and coordination requirements of the user, propose a timetable for coordination between various departments, coordinate internal and external construction, organize and manage on-site construction site authentication and testing, and prepare a test report to prepare a cabling marking system.

Note that many construction materials are required during the construction of the network project. Some of these materials must be prepared before the start of construction, and others can be prepared during the start of construction, it mainly includes optical cables, twisted pair wires, sockets, information modules, servers, regulated power supplies, hubs, and other manufacturers to purchase goods, and determines the date of delivery, different Specifications of the plastic trough board, PVC fireproof tube, snakeskin tube, self-tapping screws and other wiring materials in place, if the hub is a centralized power supply, prepare wires, iron pipes, and formulate safety measures for electrical appliances and equipment. The power supply lines must be carried out in accordance with the standards and specifications of civil construction. Make proper room for the construction schedule, which is unexpected during the construction process, it may happen at any time and requires immediate coordination ).

Precautions during cabling

Because the design of the integrated network cabling project plays a decisive role in the entire process of cabling, the design mechanism of the project implementation should be cautious. On the whole, we should first pay attention to compliance with standardized standards during design implementation. The implementation design of structured cabling should not only be rigorous, meet user requirements, but also make the cost reasonable and conform to standardized standards. There are strict regulations and a series of standardized standards for structured cabling at home and abroad. These standards have clearly defined all aspects of the structured cabling system and stipulated their design requirements and technical indicators;

Secondly, it is designed according to the actual situation. First, we must fully investigate and study the buildings implemented in the project, and collect the drawings and materials of the construction, decoration, and other related projects of the building, in addition, we fully consider the user's construction investment budget requirements, application requirements, construction progress requirements, and other factors. If the Structured Cabling scheme is determined when the building is under preparation, the specific requirements on Structured Cabling can be raised to the design institution based on the overall layout and cabling requirements of the building, in this way, some preliminary cabling projects can be completed while building. If the cabling project is implemented simultaneously with the interior decoration project on the basis of the original building, the cabling design must be carried out according to the original building situation, the decoration project design and the actual exploration results;

Finally, pay attention to the selection and layout. Material Selection and layout arrangements in the cabling implementation design have a direct impact on the construction cost. In the design, appropriate types of cabling cables and connectors should be selected based on the needs of network construction institutions. The different levels of selected cabling materials have a great impact on the overall technical indicators of the solution. We recommend that you use a vendor's series of ancillary products in cabling, because cabling is a system, rather than a simple combination of cables and components. In addition to the direct impact on the construction cost, the layout arrangement design also relates to the rationality of network cabling. For a multi-storey building, the information center network room for the network trunk switch of the entire building is installed, it is best to set the middle floor of the building. If the wiring room is set for each floor, it is best to set it in the middle of the floor. This design can not only shorten the wiring length of the vertical and horizontal trunk subsystems, but also save materials, reduces costs and reduces unnecessary Channel Transmission distances, which improves the communication quality.

In terms of details, it is also important to note that the construction site supervisors should be conscientious and responsible, handle various situations in the construction process in a timely manner, and coordinate and handle opinions of all parties; if unforeseen problems occur during on-site construction, report the problem to the engineering unit in a timely manner and propose a solution for the engineering unit to study and solve the problem on the spot to avoid affecting the project progress, it should be promptly and properly resolved; the newly added points of the engineering unit should be promptly reflected in the construction drawing; the phase inspection and acceptance should be carried out on some sites or sections in a timely manner to ensure the quality of the project; it is best to develop a project schedule, but leave room for the preparation of the project schedule, and consider the impact of other projects on the project during construction, so as to avoid the failure to finish the project on time and hand over the work, therefore, we recommend that you use the supervisor to assign a task table and a work room construction table.

At the end of the project construction, you should also pay attention to cleaning up the site to ensure that the site is clean and beautiful; repair the wall holes, shafts, and other joints; a summary of various remaining materials, place the remaining materials in one place, and register the available quantity. Complete the summary materials: Construction report, wiring engineering drawing, construction process report, and test report; use report and acceptance report required for project acceptance.

Wiring experience 5 Q &

1. Why is there a connector in the threading tube? Where should the joint be located?

It is usually not connected in the threading pipe, that is, if the length of the wire is not enough to connect, the connector of the wire cannot be in the threading pipe, should be in the switch, socket, lamp box and other junction box wiring, otherwise, it is easy to cause blockage in the pipe, poor heat dissipation, difficult to find fault points, difficult to maintain, and may lead to electrical fire.

2. Why is the mobile bedside lamp prohibited?

The mobile bedside lamp switch is * Soft insulated wire connected with the switch. If the wire and switch are separated during use, the exposed electrified wire head may cause fire or electric shock.

3. Why must the lighting switch be connected in series to the target line?

If the lighting switch is connected to the zero line, although the light is not on when it is disconnected, the phase line of the lamp is still connected, people think that if the light is not on, they will mistakenly think that the light is in the power-off status. In fact, the Earth-to-Earth voltage at each point on the lamp is still 220 V Dangerous voltage. If people touch these actually charged parts when the lamp is off, electric shock will occur, therefore, all kinds of lighting switches or single-phase small capacity electrical equipment switches can ensure safety only when connected to the phase line.

4. What problems should I pay attention to during electrical acceptance after the decoration?

All the switches of the circuit need to normally control the power supply. All the sockets need to conduct power-on experiments. The left-to-right phase, the distance between the strong and weak current sockets should be no less than 30 centimeters.

5. What precautions should I pay attention to when the weak current is pre-embedded?

When wiring, the PVC fire-retardant tube should be set, and the pipe should be horizontal and vertical, and the elbow should be used in case of bending; the weak current generally does not go to the ground; the minimum distance between the strong current and the weak current unfair slot is 300; the sound line and wide line cannot be connected, and the telephone line network line must use special connectors or distributors. After the weak current is arranged, the test should be conducted to ensure that the weak current is smooth after the sealing trough.