Weak current engineering standards? Strong and weak current construction specifications and standard

Liudu Education has focused on weak current security education and training for 15 years, and has been awarded for 12 consecutive years"The title of excellent training base"to help 30,000+ weak current trainees pass certification training. Liudu Education has set up the training of weak current engineers in intelligent buildings, and then successively increased the certification training of weak current project management, data center, security prevention, integrated wiring, building automation, smart home and other engineers, constantly developed and improved the curriculum system, and with the strict requirements for teaching quality, tried its best to improve the training service and tracking, and established a good reputation in the industry. In 2018, Liudu Education and Shougang 10 million level training base launched a "training course" in the weak current industry to comprehensively improve the hands-on ability and professionalism of students, and meet the needs of enterprises after training.

Liudu Education Faculty Team: Most of them are the main writers of industry standards and local standards....

Construction methods and process standards.

The construction methods and process standards of each system shall implement the following standards, specifications and requirements:

Metal trunking wiring installation process standard (313-1998).

Steel Pipe Laying Process Standard (305-1998).

Requirements for Safety Precautionary Engineering Procedures" (GB-T75-94).

Engineering Technical Code for Civil CCTV System (GB50198-94).

Construction Technology Standard for Building Electrical Installation Sub-project (533-1996).

Code for fire protection design of high-rise civil buildings (GB50045-95).

30MHz-1GHz Cable Distribution System for Sound and TV Signals (GB65100-86).

Cable Distribution System for 30 MHz-1GHz Sound and TV Signals (GB11318-89).

Technical Code for Cable Television System Engineering (GB50200-94).

Technical Specification for Cable Television Broadcasting System (GY T106-92).

Technical Code for Civil Building Cable and Television System Engineering (GBJ).

Code for Design of Integrated Wiring Engineering System for Buildings and Building Complexes (GBT T 50311-2000).

Code for Engineering Acceptance of Integrated Wiring System for Buildings and Building Complexes (GBT T 50312-2000).

Design Standard for Intelligent Buildings (GB T50314-2000).

According to the scope of the national acceptance standards to determine the acceptance of the specification, at the same time to carry out a comprehensive inspection, or to see the weak current project in the project.

The standard includes the project warranty signed by the construction unit, the main building materials used in the project, the building accessories, the approach test report, and the complete technical files and construction management materials.

1. The project design documents and construction contracts have been completed. 2. There are complete technical files and construction management materials. 3. There is an approach test report of the main building materials, building accessories and equipment used in the project.

1. Concealed construction acceptance, weak current construction in the line pipe embedded, directly buried cable, grounding electrode, etc. are all concealed projects, these projects in the next process before construction, should be carried out by the construction unit representatives (or supervisors) for concealed engineering inspection and acceptance, and carefully transfer the concealed engineering acceptance procedures, into the technical files.

2. Acceptance of sub-projects, after the completion of a certain stage of the project, or the completion of a sub-project, the construction unit and the design unit shall carry out the sub-project acceptance; Some individual projects are reported by the construction unit to the local competent department for acceptance.

3. Completion acceptance, the completion acceptance of weak current project is a comprehensive inspection and acceptance of the entire engineering construction project. Before the formal acceptance of the project, the construction unit shall carry out pre-acceptance, check the relevant technical data and project quality, and solve the problems in a timely manner. Then the construction unit together with the design unit and the construction unit shall declare to the local competent department for acceptance.

The law is divided into Li Qixi: the first is the safety voltage level and control voltage stipulated by the state and other low-voltage electric energy, which is divided into AC and DC. AC 36V or less, DC 24V or less, such as 24V DC control power supply, or emergency lighting backup power supply.

The other type is information sources containing voice, images, data and other information, such as information on which bureau**, television, and computer.

Legal basis: Electricity Law of the People's Republic of China

Article 2 This Law shall apply to the construction, production, development and use of electric power within the territory of the People's Republic of China。

Article 3 The electric power undertaking shall meet the needs of national economic and social development and develop appropriately ahead of schedule。 The State encourages and guides economic organizations and individuals at home and abroad to invest in the development of power sources and set up electric power production enterprises in accordance with the law。

In the investment of electric power enterprises, the principle of who invests and who makes profits is implemented.

The requirements and standards of the construction specifications for strong and weak currents are:1. The strong and weak currents should be routed separately, and it is forbidden to co-manage and share the box, and the parallel distance between the strong and weak currents shall not be less than 30cm. If the actual conditions do not allow, you can use a special shield wire or an iron pipe instead of PVC pipe.

2. The distance between the socket of strong current and weak current is at least 30cm. Splash-proof sockets should be installed in kitchens and bathrooms, and switches should be installed on the wall on the open side of the door.

3. The key of the strong current line and the communication line should not be penetrated into the same tube. The switches and sockets of the terminal box, junction box and power distribution system used in the communication system are selected to match the products of each device.

1. Strong and weak current lines need to be wired separately A major taboo in circuit transformation is that the construction team will store all the lines together for the convenience of construction. The consequence of this is interference between lines, resulting in unstable signals and leaving fire hazards.

Therefore, when the circuit is transformed, the strong and weak currents should be separated from the wiring, and it is strictly forbidden to share a tube and a bottom box with strong and weak currents, and the parallel spacing of strong current lines should not be less than 30cm, preferably 50cm, and the crossing must be at right angles.

The weak current threading pipe should be made of steel pipe or hard PVC pipe, PVC pipe is relatively cheap and commonly used, but the signal shielding effect is not as good as copper pipe. Therefore, if there is a local interference source in the line and the minimum clear distance requirement cannot be met, the steel pipe should be used as the threading pipe.

2. In order to avoid signal interference, weak currents such as network cables, ** lines, and cable TV lines should be threaded separately in the circuit construction, and should not be worn in the same tube.

3. Lay the pipe first and then route the line Weak current construction is the same as strong electricity, and the pipeline should be installed first and then threaded when the construction is slowed down, so as to avoid the phenomenon that the line cannot be twitched when changing the line in the future.

4. Avoid too many lines in the same pipe When laying, it should be changed depending on the number of wires worn in the tube, and the same pipe should not exceed four, and the wires are prohibited from filling all the space in the pipe. The diameter utilization rate of straight pipes should be 50% to 60%, and the diameter utilization rate of elbows should be 40% to 50%.

5. Avoid taking the broken right-angle bend When routing the line, pay attention to the right angle of the line pipe not to be directly broken, which is easy to cause the line to not pass through, and the impact on the signal bridge leakage is also very large, it is best to use a large bend connection.