Setting requirements of independent lightning rod
Lightning rod manufactureAccording to the drawing requirements, the foundation bolts shall be laid in the construction of the lightning rod foundation for civil construction.According to the length of the material required by the design, divided into the upper, middle, lower three sections blanking. If the tip of steel pipe production, the first section on one end of the steel pipe is sawn into zigzag, hammer pointed after weld grinding, and then rinse the tip of tin, and the other end of the middle and lower sections for straight weld.
The bearing plate is fixed on the anchor bolts embedded on a ribbed plate welding, and the lightning rod is set up, looking straight, is looking after welding, and welding on the correction, the other three side board. Finally, the lead line will be welded on the bottom board to remove the paint.
A full weld, welding processing is not clean, leak brush antirust paint. Should be timely repair welding, the medicine skin off, anti rust paint brush. The verticality of the installation of the needle is beyond the allowable deviation. The needle shall be re adjusted, and the independent lightning rod and its earthing device shall be installed after the requirement is met. The distance between the entrance and the exit of the road or building shall not be in accordance with the regulations. Its distance should be greater than 3m, when less than 3m, pressure equalizing measures should be adopted or paving gravel or asphalt land.
Angle brackets shall have dovetail, the depth of injection shall be no less than 100mm, and the buried depth of flat steel and round steel bracket shall be no less than 80mm. All brackets must be solid, full of mortar, flat and vertical. All kinds of lightning protection devices should be at the top of the bracket from the surface of the building 100mm; the grounding line should be at the top of the wall bracket from 20mm. bracket horizontal spacing is not greater than 1m (concrete support not greater than 2m); the vertical spacing is not greater than 1.5m. The spacing shall be uniform, allowing deviation 30mm. The brackets on both sides of the corner are not more than 250mm from the corner center. The brackets should be flat. The levelness is allowed to deviation 3/1000 per 2m inspection section, and the deviation of deviation allowed by each 3M check section is 2/1000, but the overall deviation shall not exceed 10mm. Iron parts such as brackets should be treated with corrosion protection. All cement mortars with buried casting support shall not be less than 1:2 in proportion. The support shall be installed as early as possible with the construction of buried support or iron parts. According to the design requirements of the missile line and sub file positioning. Use the hammer. Chisel of tick hole, hole size should be consistent and. First note buried a straight line on the ends of stent, and then use the wire pull straight buried note other support. The water in the tunnel should be wet before burial. For example, if concrete bearings are used, the concrete bearings will be arranged. Draw the straight line between the brackets at first, then make the other supports straight with mortar. If the parapet is reserved for embedded iron, the bracket can be directly welded to the iron bracket, straight with.
