The installation of cable marker posts should pay attention to the following points:

1. Choose a suitable location: When installing cable marker posts, it is necessary to choose a location that is appropriate to the buried depth of the cable underground, to ensure that the presence and location of the cable can be clearly marked.

2. Burial depth: The burial depth of cable marker posts should be determined based on the type and specification of the cable. Generally, primary and secondary cables should be buried at least 50 cm, and tertiary cables should be buried at least 70 cm to ensure sufficient protection of the cable.

3. Installation method: There are usually two installation methods for cable marker posts, namely fixed and mobile. Fixed cable marker posts need to be fixed on the ground, usually used for long-term protection of cable positions; Mobile cable marker posts do not need to be fixed and are suitable for temporary construction or maintenance situations.

4. Warning signs: The appearance of cable marker posts should be eye-catching, and bright colors such as bright yellow, red, etc. can be used to remind construction personnel and pedestrians to avoid damage to the cables.

5. Strength and Durability: Cable marker posts need to have sufficient strength and durability to withstand external forces and environmental conditions, ensuring long-term effective use.

6. Mutual distance: The distance between cable marker posts should be determined based on the depth of cable burial and the type of cable, usually maintaining a certain distance to avoid accidental injury to other cables during construction.

7. Indicating cable type: Marking the type of cable on the cable marker post helps construction personnel correctly identify and handle different types of cables, avoiding safety accidents caused by misjudgment.

8. Maintenance management: Regularly inspect and maintain cable marker posts to ensure their normal use and functional integrity. If there is any damage or failure, they should be replaced or repaired in a timely manner.

It is worth noting that before installing cable marker posts, it is necessary to first understand relevant regulations and construction specifications, and communicate and confirm with relevant departments to ensure compliance with requirements.