The cable marker posts and plates of the straight line section of the cable channel will be buried with a marker post every 15 meters.

At each corner of the buried cable, a cable marker post should be buried according to the corresponding symbols.

Each connector in the middle of the cable should be buried with a marker post at the middle of the cable.

Alert piles are installed every 5-10 meters at the intersection of cables and corners. When cables enter and exit the engineering wells, tunnels and buildings, marker posts should be installed on both sides of the exit.
Warning marker posts are called marker posts, marker posts, and are often used for indicator signs such as electric power, gas, tap water, and railway buried pipe lines. It is used for outdoor, green belt, and pipe line path indication on both sides. According to the use, it is divided into: cable marker posts, oil and gas marker posts, communication marker posts, optical cable marker posts, tap water marker posts, railway marker posts, and highway mileage piles. According to the material, it can be divided into: cement marker post, rigid PVC marker post, composite material marker post. The composite material marker posts are further divided into: FRP marker posts, resin Gaza marker posts, and resin marker posts. Setting the location: 1. At the entrance and exit intersection (usually two) in the entrance and exit of the road (generally two roots), it will attract the attention of the driver. Second, the high embankment section, for safe driving settings. 3. The two ends of the bridge (general short bridge) are set according to the group.