2results about How to "Improve grounding efficiency" patented technology

The utility model belongs to the technical field of lightning protection grounding, and particularly relates to a lightning protection grounding device. A lightning protection grounding device is characterized in that the lightning protection grounding device comprises a main body steel column, the lower part structure of which is anchored on a concrete foundation, and a downlead main body which is used for receiving lightning current from the upper part of a building and downwards conducting the lightning current; the steel reinforcement cage is arranged in the foundation, the steel reinforcement cage comprises a plurality of vertical stirrups and surrounding horizontal stirrups, the vertical stirrups and the surrounding horizontal stirrups jointly form a structural framework of the foundation, the vertical stirrups are fixedly connected with the lower structure of the main steel column, and the steel reinforcement cage is used as a foundation grounding electrode to disperse lightning current and guide the current to the foundation; and the at least two main reinforcements are electrically connected with the reinforcement cage in the foundation, are electrically connected with the main body steel column, and are used for effectively introducing and dispersing lightning current conducted on the main body steel column to the whole reinforcement cage.

The application relates to the field of oil-immersed devices, and discloses an explosion-proof device of an explosion-proof membrane of an oil-immersed equipment lifting seat. In the application, the explosion-proof oil tank serves as an oil storage component, the bottom surface of the explosion-proof oil tank is connected with a supporting insertion rod, a connecting socket and a ceramic bearing table serving as an assembly with insulation properties, the bottom of the supporting insertion rod, the connecting socket and the ceramic bearing table serving as a supporting assembly is connected with a metal base and a metal strip frame to form a metal cage assembly as a whole, and a grounding assembly is formed by a metal floor, a grounding insertion rod, a grounding sleeve, a grounding wire and a grounding base, so as to form a protective assembly similar to a Faraday cage in cooperation with the cage assembly, so that the explosion-proof oil tank in the interior can still keep the electric potential stable under the condition of a relatively large surrounding charged environment or electric shock, the possibility of explosion in the explosion-proof oil tank is avoided, and the cage assembly also plays a protective role to avoid the collision of the explosion-proof oil tank.