According to the relevant provisions of the state, more than 8 floors of the building needs to be equipped with elevators. Now with the improvement of people's living standards, increasing population, more and more buildings on the 8th floor, from the perspective of integrated wiring, elevator monitoring system wiring has become particularly important. I do not know if you have to understand the elevator monitoring system cable cable wiring way? If not, let's take a look at the following.
1, the video cable out of the elevator shaft position selection: the ideal choice should be in the middle of the well, because when the length of the cable along the video cable, only about half of the depth of the hole, the shortest, naturally the introduction of the smallest interference; Kind of outlet requirements, can only see the situation for the actual project is not necessarily allowed.
2, in the past, do not understand the principle of the case, most of the outlet position and other accompanying cable together, from the top or bottom of the cable wells out. In this case, taking into account that only half of the cable is accompanied by the movement, the other half is only a fixed extension of the connection, do not exercise, we call this part of the "fixed cable"; this provides a possibility: that half of the accompanying sports cable Only with other accompanying cable bundled with the line; and the other half of the fixed cable can choose to stay away from the accompanying cable separate way, in the elevator shaft to close the line of the vertical line, and this part of the cable through the metal pipe Or take the metal slot to shield interference on the impact of this part of the cable, more effective.
3, the accompanying part of the video cable and other accompanying cable bundles, the designer should fully understand the structure and distribution of other accompanying cables, bundled video cable should be far away from the current, high frequency cable, near the current low frequency Cable bundles; here, even if there is a 1 cm choice may also have to fight, because the impact of the size of the distance at least inversely proportional to the square;
4, the camera metal shell, NC head shell, coaxial cable outside the conductor and other video signals "ground", and the elevator car, rails, etc. to be insulated, which in the installation of the camera to pay special attention. Camera power supply should be preferred centralized DC power supply, followed by the choice of car lighting, electricity can not be used. Power supply, control and other monitoring cables, try to use shielded cable to prevent the interference signal to leak out.
5, from the elevator shaft exit to the control center of the video cable, should take the metal pipe or take the metal tank to shield the environment along the interference of this part of the cable, and pay attention to this part of the shield and the elevator shaft shield, should do electrical connection
It is understood that the layout of the video signal line from the monitoring center to the elevator machine room to stay in front of the video interface can be, the elevator room to the elevator car within the video signal line by the elevator manufacturers to complete the wiring (with the release of cable together) , Elevator construction professional units in the elevator room room reserved video interface (take the same principle). If you want to install the floor display, need to coordinate the professional units in the elevator car reserved 220V power supply.
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