1) Insert two grounded probes in the grounding direction of the grounding body and insert them into the ground 20m to 40m away from the grounding body. The insertion depth is 400mm, as shown in the figure below.
2) Place the grounding resistance soil resistivity tester near the grounding body and perform wiring. The wiring method is as follows:
1 Connect the grounding body to the terminal "E1" (three-terminal meter) or to the short-circuited common terminal (four-terminal meter) with the shortest dedicated wire.
2 Use the longest dedicated wire to connect the measuring probe (current probe) with a distance of 40 m from the grounding body to the connection terminal “C1†of the measuring instrument.
3 Connect the measuring probe (potential probe) located at a distance of 20 m from the grounding body to the terminal “P1†of the measuring instrument with a dedicated wire of the remaining length.
3) After placing the meter horizontally, check whether the pointer of the galvanometer points to the center line, otherwise adjust the “Zero Adjuster†so that the pointer of the meter points to the center line.
4) Set the "multiplication scale" (or coarse adjustment knob) to the maximum multiple and slowly turn the generator handle (the pointer starts to shift) while rotating the "measuring dial" (or fine tuning) Knob) Point the galvanometer hand to the center line.
5) When the pointer of the galvanometer is close to balance (the pointer is close to the center line), rotate the handle faster to make the rotation speed reach 120r/min or more, and adjust the “measuring dial†to make the pointer point to the center line.
6) If the reading of the “measuring dial†is too small (less than 1), it is difficult to read accurately, indicating that the magnification scale is too large. At this time, you should set the “scale†to a smaller multiple and re-adjust the “measuring dial†so that the pointer points to the center line and read out the exact reading.
7) Calculate the measurement result, ie R = "Magnification Scale" reading × "Measurement Dial" reading.
Mixed Powder
Tungsten carbide mixed Metal Alloy Powder is commonly used in PTA (Plasma Transferred Arc) welding. PTA welding is a process that involves the deposition of a hardfacing material onto a base metal to provide wear resistance, corrosion resistance, and improved mechanical properties.
Tungsten carbide is a very hard and wear-resistant material, making it ideal for applications where high abrasion resistance is required. It is often mixed with other metals, such as nickel, cobalt, or chromium, to form a metal alloy powder. These metal alloys enhance the properties of the tungsten carbide and improve its compatibility with the base metal.
The tungsten carbide mix metal alloy powder is typically fed into the PTA welding torch, where it is melted and propelled onto the surface of the base metal using a high-energy plasma arc. The molten powder forms a hard, dense coating that bonds with the base metal, providing excellent wear resistance and protection.
The specific composition of the tungsten carbide mix metal alloy powder can vary depending on the application requirements. Different ratios of tungsten carbide and other metals can be used to achieve desired properties, such as hardness, toughness, and corrosion resistance.
Overall, tungsten carbide mix metal alloy powder is a versatile and effective material for PTA welding, offering superior wear resistance and protection for various industrial applications.
Mixed Powder,Arc Welding Powder,Pta Welding Powder,Plasma Welding Powder
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