Road lighting construction method solar street light-litelsolar manufacturer

The main construction methods of road lighting 1. Positioning and lofting: According to the construction drawings and site conditions, determine the installation position of the street lamps based on the designed lamp position spacing, and mark the lamp positions on the curb. 2. Trenching and lamp foundation: Take the distance from the curb as the center, and excavate a pre-buried trench with a width of 60CM and a depth of not less than 86CM for the cable pipe (95CM at the crossing). The basic size of the street light with a height of 14 meters is 100*100*180CM, the basic size of a street light with a height of 30 meters is 950*5600*2600CM, and the basic size of a 35-meter-high street light is 1100*6000*2600CM. Grounding body laying: road lighting cables are laid directly through Φ63CPVC pipes for street lamps, cable lines laid on sidewalks and green belts are buried at a depth of 0.7m, and cables are passed through the street without excavation MPP pipes. The underground laying path of MPP pipes should fully consider the underground geotechnical and soil quality, and minimize the crossing with various underground facilities. To prevent and avoid damage to the MPP casing and cable lines, the trenchless depth should be determined according to the design and the elevation of the road surface, not the temporary elevation of the ground, to ensure that the actual construction is consistent with the design. During directional drilling and pilot drilling, the bending degree of the aperture should meet the requirements of the minimum bending radius of cables and MPP pipes. During trenchless pullback and reaming, the hole diameter should be 1.2-1.5 times the outer diameter of the casing according to the underground geological conditions. To avoid the small hole diameter that is not conducive to the casing pull-in and the excessive hole diameter to cause underground rock and soil collapse during the extrusion casing construction, the drilling pressure and pump volume should be adjusted in time according to the stratum change, and technical measures should be taken to ensure that the hole diameter is uniform and the inner wall is smooth and flat. When the cable is drawn and laid and penetrated into the MPP pipe, the cable should be used as a traction head, and measures should be taken to minimize the friction and wear of the cable. There are guards at both ends of the cable. Prevent cable damage. After the cable is inserted into the MPP pipe, it does not need to be strictly straightened, but should be relaxed into a wavy shape. After the pipe reaming is completed, measures should be taken to prevent masonry, hard blocks and other objects from entering the hole. After the cable is laid, the MPP pipe should be blocked to prevent water leakage.