Monitored Pole, English Name: CoControl rod, commonly used for outdoor surveillance camera installations, typically features a height of 6 meters and a horizontal arm of 1 meter. In the absence of special circumstances, all monitoring rod embedment concrete is C25, and the steel reinforcement meets national standards and wind resistance requirements.
1. Monitors poles are column-shaped supports for outdoor surveillance camera installations. Road surveillance typically uses poles 6 meters tall with a 1-meter horizontal arm. In the absence of special circumstances, all monitoring pole foundation parts are made of C25 concrete, with steel reinforcement meeting national standards and wind load requirements. The cement used is No. 425 ordinary silicate cement. The concrete mix ratio and cement quantity should comply with the provisions of GBJ204-83.
2. The monitoring pole must have a good grounding with a lead wire introduced underground (it is recommended to use conductive material that does not pass through the pole body), with the grounding resistance less than 4 ohms.
3. Thread wrapping above the embedded bolt flange is well secured to prevent damage. Place the embedded monitoring pole components according to the installation diagram, ensuring the extension direction of the support arm is perpendicular to the traffic lane (or as required by the engineer). The anchor bolts serve as the main reinforcement.
4. Ensure the concrete pouring surface of the pole foundation has a flatness less than 5mm/m, and try to maintain the horizontal alignment of the embedded parts. The flange of the embedded parts should be 20~30mm below the surrounding ground, and then cover the reinforced ribs with C25 fine gravel concrete to prevent water accumulation.
5. Where the rod is located, next to the control box, at cable bends, or when the straight length of the cable conduit exceeds 50 meters, or when the two ends of the cable conduits are not on the same plane and are more than 100 mm apart, a handhole well must be installed. The inner dimensions of the handhole well should be 500 (length) × 500 (width) × 600 (depth) MM, with a layer of gravel for drainage purposes; the four walls of the handhole well must be coated with cement sand mortar.
6. Control boxes are supplied by the equipment manufacturer based on the required capacity. The casing is made of cold-rolled steel plates with a wall thickness of not less than 1.2mm, coated with outdoor plastic powder, and properly sealed for waterproofing, anti-theft, and heat dissipation.
7. Structural steel shall not have defects such as cracks, delaminations, heavy scaling, inclusions, or scratches that exceed half the depth of the steel's negative tolerance or 0.5mm, whichever is greater.
