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The Shengtai combined copper grounding electrode is equipped with accessories such as coaxial connectors, drive heads and drill bits. According to different geology and use requirements, the length of the cast copper grounding electrode can be arbitrarily increased by using HD-DM brass coaxial connectors (connecting bolts). The neck end is connected by HD-DMQ drive head (connecting bolt) for hitting when the rod is deep.
The end is connected by HD-DMZ special drill bit (connecting bolt) to facilitate the rod to be driven deep. It is mainly used for machine tool processing work plane, with holes and T-grooves on it, which are used to fix the workpiece and clean the iron chips generated during processing. Floor boring machine workbench material:
The hardness of the working face of high-strength cast iron HT200-300 is HB170-240, and after two manual treatments (artificial annealing 600-700 and natural aging 2-3 years), the accuracy of the product is stable and the wear resistance is good. Floor boring machine table accuracy: Class A accuracy:
Within the length of the flatness of the working surface of the fixed workbench within 1000 lengths, the tolerance increases for every 1000 lengths, and the maximum tolerance is. The straightness of the T-groove of the fixed table reference is 1000 measurement length, and the maximum tolerance value is. Class B Accuracy:
The flatness of the working surface of the fixed platform is the length within the length of 1000, and the maximum tolerance value is increased by each additional 1000. 015。Fixed table reference T-groove straightness, 1000 measurement length is, the maximum tolerance is hardness HB180-240, hardness difference:
Not more than HB25. Floor boring machine workbench specifications: 500x1000-3000x6000, (special specifications are made according to the buyer's drawings).
The copper-clad steel grounding rod (cast copper grounding electrode) produced by Shengtai Company has strong protection after being buried deep underground, whether it is natural corrosion or electrochemical reaction. The grounding electrode and grounding connection are welded with the hot melt flux produced by our company, so that the grounding device is completely under the protection of copper, and it becomes a real maintenance-free grounding device.
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What were the uses of the hot-dip galvanized grounding electrode in the past, then, what are the uses of the copper-clad steel grounding electrode.
Copper-clad steel only seems to improve oxidation resistance and conductivity. (This is emphasized as if, because copper is still very oxidized under certain geological conditions.) The experience of hundreds of years shows that hot-dip galvanizing is the best ground pole material, or in other words, hot-dip galvanized copper rod is better).
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1. The thinnest thickness of the copper layer 2, the tensile strength 600n mm2 3, and the straightness error 1mm m
4. Plasticity of copper layer: when the grounding rod (wire) is bent by 30 degrees, there is no crack on the inner and outer edges of the fold.
5. Copper layer bonding: After the adhesion test, except for the spalling copper layer at the jaw bite of the tiger vise, the rest of the copper and steel are well bonded and there is no peeling phenomenon.
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The general technical parameters of the copper-clad steel grounding electrode are: the copper layer bonding: after the adhesion test, the copper layer is peeled off except for the jaw bite of the tiger vise, and the rest of the copper and steel are well bonded and there is no peeling phenomenon. The grounding electrode can be connected to the required length, and the grounding electrode can go up to 30 meters underground, and is not affected by any climatic conditions of soil resistivity and grounding resistance; thickness of copper layer; Copper layer plasticity:
When the grounding electrode is bent by 30 degrees, there is no crack on the inner and outer edges of the folded angle; Tensile strength 600n straightness error 1mm m. The surface metal of the copper-clad steel grounding electrode is oxygen-free copper; The thickness of the copper layer is: and other specifications; The copper layer adhesion test lasted for more than 300 hours after the body temperature was 300 for more than 1 hour, and the copper layer did not peel off; In the corrosion resistance test experiment, the grounding electrode is immersed in a nitric acid solution with a concentration of 10% for more than 90 hours, and the corrosion loss is not more than 15%; The resistivity is lower, thus meeting the requirements of low resistance in special occasions.
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1. The copper-clad steel strand is drawn out of the building and the grounding wire is broken and the clamp is broken and the wall is passed: the protective sleeve is first embedded in the wall, and then the grounding electrode is welded together, and the grounding wire at the other end is led to the room through the protective sleeve, and the indoor grounding wire is connected with the bolt. 2. Installation of copper-clad steel strand lightning protection down line:
Whether the down lead wire is laid on a building or a structure, a bracket needs to be embedded in advance, and then the down lead wire is bolted to the bracket, led to a distance of 2 meters from the floor and protected with a casing, and a disconnection clip is made to measure the grounding resistance. 3. Installation method of copper-clad steel strand horizontal laying grounding device: this method is adopted in the rocky area where the soil conditions are very poor, and all the ditches are replaced with yellow clay, and the layers are tamped.
In addition to the design requirements, the size of the ditch is generally 15 meters long, and the depth of the grounding electrode is meters. It is required that the grounding devices are all galvanized flat steel, and all welding points are brushed with asphalt. The grounding resistance should be less than 4 ohms, and the length of the grounding device should be added when exceeded.
The grounding trench is not less than 3 meters away from the building. 4. Steel pipe grounding electrode installation: The installation method is the same as the angle steel grounding electrode, but the material is different.
One end of the steel pipe should also be sharpened, and there are two methods, using a sawing edge or forging. The copper-clad steel strand can be applied to the acid rain areas in the south, and the areas with less wind and heavier sulfur dioxide in the north and northwest. Its anti-corrosion years can be synchronized with copper stranded wires.
5. Copper-clad steel strand strong rope, using electrified catenary, whether as the main rope and auxiliary rope, has strong vitality, is the contact surface of copper, simplifies the catenary structure, and reduces unnecessary supporting fittings. It has strong anti-corrosion performance. At the same time, it has strong electrical conductivity.
From the point of view of performance, it has a very strong competitiveness.
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Main rod: The grounding electrode is made of high-quality cold-drawn steel, and the copper is cast with special equipment (the thickness is and the copper content is used to ensure that it has excellent conductivity and mechanical strength, and the product has excellent anti-corrosion performance. Connecting Tube:
The rod can be connected with copper connecting pipe, which has the best anti-corrosion effect. The rod is in close contact with each other, and the driving force acts directly on the ground electrode when the grounding electrode is driven into the ground or the driving drill is used to drill into the ground. It is divided into threaded and non-threaded connections.
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To achieve the most effective grounding with less material and lower installation costs, the design should be based on the following aspects. According to the grounding function, it can be divided into: protective grounding - protect people and animals from electric shock; Working grounding - the ground rod and the electronic equipment are connected to achieve equipotential to ensure the normal operation of the equipment; Lightning protection grounding - a strong impulse current in the gas layer is released into the ground.
By going deep into the ground, the required ground resistance value can be obtained with the least amount of ground electrodes. If the same resistance value is obtained by using a short (6 m or shorter than 6 m) grounding electrode, the number of grounding electrodes is large and the construction area is large, obviously, the cost is several times more.
Botou Shengtai copper-clad steel grounding rod is: the pure copper is evenly covered on the low-carbon steel core with special electroforming technology, so that the copper and the steel core are completely molecularly combined (if the combination of the two is not dense, in the case of electricity, the galvanic cell reaction will be generated, and the anode metal iron will be oxidized and turned into iron ion loss, which will accelerate the corrosion of the steel core). It has the characteristics of copper layer thickness (more than millimeter), good adhesion, and no peeling (rollable threads). >>>More