Samsung SCC-B1311 Operating Instructions Manual page 6

external cctv camera installation
Treating the raw materials that reduce the
ground resistance around the ground rods.
Ground resistance:
100Ω or less.
The surface
< Construction of the ground rod >
1 Installing the lightening conductor and grounding system.
Separate grounding system.
2 Installing the camera and grounding system.
Grounding wire to a good earth ground (100Ω or less ground
resistance.) (Class 3)
3 Class 3 camera grounding
Separate grounding system from the lightening conductor.
Diameter :
300Φ
Higher than 0.75 meter
The height of the ground rod:
Higher than 3 meters.
(One meter by minimum)