Network monitoring system integrated wiring construction which standards?

According to the security design, construction specifications, procedures and standards issued by the relevant state departments in recent years, based on summarizing the design and construction experience of security projects, and combining the technical requirements of new technologies and new products developed by security science and technology, in line with the service of the society, The user's first aim. For the intelligent system monitoring project, the following standards for the wiring construction specification of the following network monitoring are specially drafted.

First, monitor the technology of indoor wiring

Indoor cabling is not only required to be safe and reliable, but also to make the line layout reasonable, neat, and securely installed. The technical requirements are as follows:

The use of wire, the rated voltage should be greater than the operating voltage of the line; the insulation of the wire should be consistent with the installation of the line and the laying of environmental conditions. The cross-sectional area of ​​the conductor should meet the requirements of power supply and mechanical strength. When wiring, avoid wire joints. Unless joints are available, their joints must be crimped or welded. Wire connections and branches should not be subjected to mechanical forces.

The wiring is installed horizontally or vertically within the building. The wiring shall be protected by casing (plastic or iron pipe, according to the technical requirements of the indoor wiring). The metal wire hose may be used for the ceiling wiring, but it must be fixed, stable and beautiful. The signal line must not be parallel to the high-power power line, and it must not be worn in the same pipe. If it is limited by the environment, you must keep at least 30 CM away from parallel lines. And must go galvanized steel pipe.

The AC power supply of the alarm control box shall be routed separately and must not be in the same pipe as the signal line and the low voltage DC power line. The installation of the AC power line shall comply with the electrical installation standards.

Second, monitoring the technical requirements of indoor piping

There are two kinds of light and dark cloths in the line pipe layout. The light pipe requires horizontal and vertical, neat and beautiful appearance. Dark piping requires short, smooth passages and little elbows.

Select the pipe line, select the type and specification of the pipe according to the design plan. If there is no regulation, the total area of ​​the wire (with outer skin) can be selected within the limit of 2/3 of the pipe inner hole cross section. . In order to facilitate pipe threading and maintenance, when the length of the pipe exceeds the following values ​​(according to on-site construction conditions), a junction box or cable box shall be installed in the middle, and the location shall be convenient for threading.

(1) When the pipe length exceeds 40 meters without bending; (2) When the length is more than 25 meters with one bend; (3) When the length is more than 15 meters with two bends; (4) Length Every 10 meters and three bends;

The fixing of the line pipe, the line pipe at the turn or the distance of more than 1.5 meters from the straight line should be fixed clamp. The bend radius of the wire conduit shall comply with the provisions of the bend radius of the cable that is passed through. Pipes with trachoma, cracks, and large deformations are prohibited from use in wiring works. The connection of the line pipe should be sleeved or buckled. For the pipe laid vertically, according to the size of the cross section of the wire, a fixed threaded terminal box is added every 10-20 meters, and the wire is fixed in the box with an insulated clamp. The thicker the wire, the fixed point The shorter the distance.

In the vertical nozzle that does not enter the box (box), after the wire is pierced, the nozzle should be sealed. The junction box or junction box should be fixed with no less than three screws. Connection box and pipe connection should be added cup comb. Junction box or junction box should be covered. The junction box should be added to the branch of the line pipe.

Third, the monitoring control box installation technology

Control box installation should meet the requirements of the technical specification

The control box should be fixed with no less than three screws to ensure firmness. The choice of location should be concealed. To prevent damage, the operation of the control box must be remotely controlled. The remote control switch must be installed away from the control box. The tamper function must be provided and protected by the door magnet. If the remote control switch is used with a password switch, it should be misplaced. Three passwords trigger the alarm function. The control box should be equipped with tamper-proof function, and should be alarmed whenever it is disassembled.

The AC of the control box shall be introduced without the switch. If the switch is to be used, it shall be installed in the control box. The AC power cord shall be routed through the tube alone. It shall not be allowed to be in the same tube with other wires.

The lead wire of the control box is protected from the control box to the shed by iron pipes. The iron pipe and the control box are connected by double nuts. The power box should be installed more than 2 meters above the ground. It should be firm, beautiful, and safe.