The composition, usage and classification of earth rod

  • Earth rod is also known as earth electrode and earth network. The earth rod is designed and produced on the theoretical basis to improve the internal conductivity of the grounding conductor and reduce the external earth resistivity of the grounding conductor. The following Sichuan Sunlight will introduce the usage of earth rod to you.

    The composition of the earth rod

    The earth rod is made of insulating operating rod (the material of the operating rod is made of high-quality glass fiber reinforced plastic epoxy resin rod. The connecting wire clip has flat spiral hook, double spring hook, throat hook, etc. Generally, each group of indoor high and low voltage has There are 3 and 4, and the outdoor high-voltage is generally 3. The length of the operating rod selected for each voltage level is also different, and it is also different according to the national standards. When choosing, you should also consider the national standard. The above is the composition of the earth rod.

    How to use earth rod

    When using the earth rod, pay attention to connecting the installed ion earth rod electrodes with bare copper cables to form the main ring. The connection points are welded by exothermic welding, and the drill hole should not be larger than 155mm, so as to avoid insufficient filler; When covering the protective cap, pay attention that the air holes on the rod should not be blocked by mud or filler, and the air holes on the cap should be above the backfill and should not be blocked. The lead wire should be made of 95mm2 multi-strand copper wire, and the lead wire and the ground electrode should be connected by exothermic welding; The distance between the rod and the rod should not be less than 5m. When using, first, drill a hole ф155mmX3155mm vertical to the ground at the selected construction site; secondly, put 50kg of fresh water in a container with a volume greater than 150L, add the initiator, stir until it is completely dissolved, add Add the synergistic ionic filler, stir it to a paste, and prepare the filler; again, remove the sealing tape at both ends of the ground electrode, and fill the filler prepared according to 1:4 into the bottom of the hole and implant the ground electrode into the hole. The top of the grounding electrode is parallel to the ground plane; the grounding lead wire, fill the rest of the filler around the grounding electrode to 100mm from the top of the grounding electrode, implant the grounding electrode, cover with a protective cap, measure the grounding resistance, and fill it with soil for protection Around the hat, the top of the hat should be 100mm above the ground. Using an electro-ion earth rod requires strategy so that you can do the job well without wasting time and effort. The above is how to use earth rod.

    Copper bonded steel rod

    Classification of earth rods

    \u25cfCopper bonded steel rod

    A copper layer with a thickness of more than 0.254mm is coated on the outside of the ground steel rod, which is called copper bonded steel rod, also known as copper clad steel ground rod.

    \u25cfGalvanized earth rod

    Hot-dip galvanized anti-corrosion treatment on the outside of the steel bar.

    \u25cfStone earth rod

    Rod-shaped grounding module made of graphite material. According to the style, earth rods can be divided into double earth rods, single earth rods, spiral earth rods, hand-held earth rods, gun earth rods, separate earth rods and multi-angle earth rods.

    \u25cfHericium helix earth rod

    Hericium helical earth rod is one of the spiral earth rod series products. Compared with the traditional spiral flat or spiral hook earth rod, it has the characteristics of time saving, labor saving, simple and convenient to use and so on. The head of the Hericium helix earth rod is die-cast from high-quality aluminum alloy. The rod is made of high-quality epoxy resin color tube with high insulation performance, good mechanical strength, light weight, and moisture-proof treatment. It has the characteristics of light weight, high mechanical strength of the insulating rod, and easy to carry. The above is the classification of earth rods.