How to connect the Figure-8 grounding circuit

The winding method of figure 8 grounding circuit is as follows:

1, install the figure-8 grounding circuit directly below the gate pole (fence pole and advertising door cannot be installed directly below), and draw the coil cutting line on the ground after determining the position.

2. The coil slot has a depth of 30 to 50mm and a width of 10 to 15mm (using a double saw blade cutter). Chamfering the corners of the groove, and removing the gravel and cement powder in the groove after removing the groove.

3, ground wire coil, two-person coil, tighten the ground wire, can not be twisted, can not be bent, the skin can not be ground.

4. After the output bow and wire of the grounding circuit are twisted in the slot, two lead wires are twisted together (twisted at least 20 times per meter), and the length of the lead wire shall not exceed 5 meters.

5. Backfill with cement mortar, asphalt, structural adhesive or quick-setting epoxy resin. One person presses the coil, and the other person backfills.

6. After the ground loop is connected to the road brake vehicle detector, carry out the vehicle detection test.