1Foundation pit opening: The steel trough equipment of the vehicle bottom scanner is an outdoor underground deviceThe required foundation pit should be larger in volume than the steel trench. The dimensions of the foundation pit are: length160cm wide70cmhigh50cm.The location of the foundation pit: The centerline of the scanning equipment should be aligned with the central axis of the channel. Therefore, the foundation pit to be opened should be on the central axis of the channel. Take prison installation as an example: Prisons are divided intoA,BDoorAThe door is the outer gate of the prison.BThe door is the one on the side of the prison area. If a one-way device is installed, it is closerBThe door3-4mDig the foundation pit at the location. The standard width is5mThe centerline of the foundation pit should be in the passage2.5mAt this point, the foundation pit is perpendicular to the central axis of the passage. (The pipeline pre-burial between the main equipment under the vehicle and the control box must be carried out simultaneously with the pre-burial work of the main equipment..

2Opening a wire trough: If the equipment needs to be connected to the distribution cabinet with wires, a wire trough needs to be opened on the cement road surface, and the trough needs to be placed inside50mmGalvanized steel pipe. The size of the cable tray is: width20cm "Depth" 40cm(The length is determined according to the on-site requirements. Do not have too many elbows that may affect the wiring inside the pipeline in the future. Fine steel wires should be reserved inside the pipe for wiring purposes.

3Cut the ground induction coil: (Standard length of the ground induction coil groove.200cmwide100comIt can be appropriately reduced according to the situation, for example: longer180cmwide60cmOr longer200cmwide80cm. As shown in the following figure It is in front of and behind the steel trough foundation pit120cmCut grooves. Cut one with a width of5mmThe depth is5cmThe gap(If bidirectional equipment is used, a ground induction line trough of the same specification and size needs to be opened on each side of the steel trough). Wrap the ground induction wire three times and then twist it, and pass it through after twisting25mmPVCIt is laid in the pipe to the conduit and then to the distribution cabinet. The twisted pair should have no less than twenty nodes per meter. There should be no metal objects within one meter around the ground induction loop. If there is a metal door on one side, keep a distance from the door1.5-2meter. When wiring, reserve sufficient length of wire on one side of the ground induction coil in advance to prevent insufficiency when twisted-pair. Pass the twisted ground induction line through the inner diameter25mmPVCIn the pipePVCThe pipes are connected through sleeves and placed in the cable tray.PVCThe pipes are connected by sleeves and then glued together. The ground induction coil passes through the line on one side of the distribution cabinetPVCThe pipe is also higher than the concrete island20cm.

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