Lightning protection grounding construction: The lightning protection grounding construction method must meet the design requirements, and the grounding resistance value of the test grounding device must meet the design requirements; currently residential buildings use protective grounding, lightning protection grounding and work grounding combined grounding, and the grounding resistance is not greater than 1 ohm mother.
When there is no design requirement,Stringing Blocks Manufacturers the buried depth of the top surface of the grounding device should not be less than 0.6m. Round steel, angle steel and steel pipe grounding electrodes should be buried vertically in the ground, and the spacing should not be less than 5m. The material of the grounding device should be steel and hot-dip galvanized. deal with.
Lightning protection grounding down conductor: It is strictly forbidden to connect the metal conductors of the building equipotential connecting steel bar with the lightning protection grounding down conductor common connection, and the grounding body should be unified and grounded.