Smart industrial buildings are a basic component of the national advocacy for the construction of smart cities. They can use information communication and Internet of Things technology to sense and telemetry, collect and analyze, integrate and share the key information of the entire industrial park's electromechanical equipment and intelligent facilities operation system. Intelligent industrial building informatization is inseparable from the wiring system. The wiring system of the industrial environment is different from the wiring system of the building and has its own characteristics and needs. Industrial wiring should meet the requirements of general production and operation, control and management, and should meet the requirements of information Security, energy saving and environmental protection, energy reduction and efficiency increase.

Depending on the application and environment, industrial building wiring can be located in the following areas:

1. Production area; production area;

2. Production and non-production border areas; production areas;

Production control area;

4. office area;

5. Outdoor area;

For example, when the signal transmission of each subsystem (such as large screen display, monitoring system, access control system, garage management, building automation, etc.) of weak current system in industrial buildings is based on network communication protocol, its transmission line can also be designed into the integrated wiring system.

In the industrial environment, the harsh degree of the environment will be different. The wiring system needs to consider the impact of water splashing, dust intrusion and environmental vibration, corrosion, electromagnetic pollution, etc., and adopt the corresponding industrial-level connection plug-in. For some good environments in industrial buildings, such as office areas, control rooms, etc., the wiring system can be designed according to conventional office buildings.

The environmental classification of the industrial environment wiring system is as follows:

Cabling Channel Environment Grading
2 Information transmission characteristics of industrial buildings

The integrated wiring system has been recognized by the industry as the main transmission medium of buildings. Among them, the setting of information points is the focus of wiring system engineering, which will be directly related to the information and communication services supported by wiring and the construction scale of the project. The density of information points in the industrial building plant area is low, the setting location is relatively scattered, and the layout of information points is mostly related to the production management mode.

The main wiring system in each building adopts optical cable large logarithmic cable. It is recommended to adopt 6 types of unshielded optical cable between the floor wiring equipment of the horizontal wiring system and the information point of the work area. For the production area, the wiring system of 6 types of shielded optical cable can be adopted,

Information Construction of 2.1 Industrial Park

The informatization of the industrial park is integrated through multiple professional systems, and the overall structure is relatively complex, and the design idea of hierarchy and modularization is adopted. The overall architecture can be divided into five levels: intelligent support network, network communication platform, business database, public service and integrated application. As shown in the following figure:

Industrial buildings to build a three-layer computer switching network, but also for a two-level virtual network architecture platform, network switches between the use of dual-route settings to ensure and support the relevant industry database information sharing.

The overall network architecture is shown in the following figure:

3 Integrated wiring system scheme

Composition and Topology of 3.1 Cabling System

a) Industrial cabling system structure

The difference between the industrial environment wiring system and the building wiring system is that the demonstration of the visible light one-second copper jumper product is that considering the large scope of the factory area, the regional wiring scheme can be adopted, thus adding an intermediate wiring subsystem. Second, the object connected by the information socket in the work area often represents a data terminal device, but a network device in the operation area.

Industrial Environment Cabling System Architecture
B) Line redundancy and backup

(1) Look here | Data Center Room Wiring Design Scheme The wiring system in the industrial environment should fully consider the backup of the system route to prevent a major impact on production when a key line fails. In addition, another purpose of backup is to quickly repair the failed route while the backup route is running, so that the mean time between failure (MTTF) of the system is minimized.

(2) The backup of wiring routes will directly affect the increase in the configuration of cables and wiring modules of the wiring system, and the backup or intercommunication routes are set up between all levels of wiring equipment in the industrial environment wiring system.

3 Configuration of integrated wiring system

3.1 Configuration Principles

1, to meet the building use function and industrial building information system needs, taking into account the future development.

2. The system comprehensively considers the requirements of upgrading and expansion, and reserves sufficient spare wiring routes for expansion.

3. Closely combined with the application of network architecture and network equipment.

4. Provide transmission lines for each building intelligent system.

3.2.2 System Configuration

For industrial buildings in the office system, professional business system and the intelligent system of the property network, may form their own independent (network isolation) of the computer network system, therefore, the subsystem of the integrated wiring system installation space, distribution frame, cabinet, trunking will be completely physically isolated.

The cable cloth of the integrated wiring system is placed in an industrial environment. According to the importance of the site and the fire protection requirements of the building, the corresponding grade of fire protection cable (such as flame retardant/low smoke halogen free type) can also be selected.

Safety protection measures of 3.4 cabling system

3.4.1 Fire Prevention

Industrial buildings belong to pipeline-intensive areas with large equipment power supply load and plant area. In order to avoid the occurrence of major accidents caused by fire, according to the requirements of national standards, it is recommended in the GB31247-2014 "Classification of Combustion Performance of Cables and Optical Cables" not to judge the safety characteristics of cables by material name, and to classify the combustion performance of cables and optical cables into Grade A: non-combustible cables (optical cables);B1: flame retardant Class 1 cables (optical cables);B2: flame retardant Class 2 cables (optical cables); class B3: Ordinary cable (optical cable). The flame-retardant/low-smoke and non-halogen twisted pair cables and optical cables recommended by the state can be considered for the project.

3.4.2 Heat Dissipation

When Wifi, indoor cameras (including PTZ), etc. use POE for power supply, if the power supply current is large, the pair of transmission pairs will heat up the bundled twisted cables due to heat, resulting in a decrease in transmission distance or a fire. The following measures are recommended:

The use of metal bridge and metal conduit cable laying, can use the metal shell to help heat dissipation.

· The use of shielded pair cable, the use of shielding metal body to help heat dissipation and improve the impact on the transmission distance.

When the cable is laid on the bridge, the twisted cable should adopt the non-binding threading process (one-step threading process) to make the twisted cable in the bridge in a scattered state to improve the anti-electromagnetic interference ability and heat dissipation effect.

3.4.3 Lightning protection

Outdoor transmission cables may be located in the lightning strike area. In order to prevent lightning damage to equipment and personnel, it is recommended to use outdoor optical cables without metal components to connect and convert them into electrical signals in the area with lightning protection to form electromagnetic islands.