Is the earthing electrode made of galvanized flat steel or bare copper wire?
The vertical earth body buried in the soil should be made of angle steel, steel pipe or round steel. The horizontal grounding body embedded in the soil should be made of flat steel or round steel. Round steel diameter should not be less than 10mm; flat steel section should not be less than 100mm2, its thickness should not be less than 4mm; angle steel thickness should not be less than 4mm; steel pipe wall thickness should not be less than 3.5mm.
Bare copper stranded wire is generally used in the equipment itself, and not buried in the ground; the connection mode is equipment - bare copper wire - grounding grid.
The earthing device is divided into horizontal grounding and vertical grounding. The horizontal earthing body generally adopts hot-dip galvanized flat steel or hot galvanized round steel; the vertical grounding electrode adopts hot-dip galvanized steel, angle steel, steel tube, round steel and other materials.
The combination of conductors or conductors that are buried in the earth so as to connect with the earth is called a ground electrode. The grounding electrode is the electrode which is in full contact with the ground and realizes the connection with the earth. In the electrical engineering, the grounding electrode is made of a plurality of 2.5M long, 45X45mm galvanized steel angles, and is nailed at the bottom of the 800mm deep groove, and then is drawn out with the lead out line.