Construction Wiring Requirements for Intelligent Parking Lot System - Tigerwong

In the installation and wiring of the parking lot system, attention should be paid to two aspects: one is the selection of wiring pipes, and the other is the process of pipe laying. Let's explain them one by one. 1 Selection of line pipe of parking lot system 1. Selection of line pipe size. The size of the conduit is selected according to the number of wires. If there are few wires to be threaded, the conduit can be smaller. Generally, the diameter of the bus to be threaded shall not be greater than 70% of the diameter of the conduit. 2. Selection of line pipe materials for parking lot system. The parking lot will generally choose PVC conduit as the main pipe, because PVC conduit is economical, practical and anti-corrosion, which is suitable for use where it does not bear mechanical load. If the wiring area needs to bear mechanical load or places requiring fire prevention, electromagnetic wave and high-frequency signal interference, such as roads passed by vehicles, steel pipe wiring is required, and PVC can not bear heavy pressure. When using steel pipes, it should be noted that steel pipes should not be used in corrosive environment. 2 Pipe laying of parking lot system 1. The buried PVC is divided into indoor buried and outdoor buried. It is buried 30mm below the protective layer indoors, while the buried depth of outdoor PVC pipe shall be about 100mm, the outlet shall be 5cm higher, and it shall be bent back at the end of the pipe head to prevent water from entering the pipe. 2. The power line and signal line shall be wired separately in different conduits and arranged in parallel to avoid signal interference. 3. In order to facilitate future maintenance and expansion, pay attention to the following points. i) Try to avoid the turning of the conduit. If it is inevitable, the turning radius shall be greater than 90 degrees and shall be as large as possible. II) at the same time, it is recommended to wear No. 12 iron wire in each conduit for future maintenance. D) the conduit or trunking of indoor wiring: I) it shall be horizontal and vertical and avoid crossing as much as possible, Branching and joints shall not be affected by external forces II) the inclination of horizontal or vertical trunking or pipe shall not be greater than 3mm / M; III) straight pipe wiring shall be natural and straight. A pipe clamp shall be fixed every 1.5m, and the joint shall be firm. In case of beam column, it shall be parallel to it