For a family, there are four paths where lightning intrusion is considered important: power lines, feeders for cable or wireless TV antennas, and metal bodies in the exterior walls or pillars of a house. First, buildings should be installed with direct lightning protection measures, such as lightning rods, down conductors, and grounding bodies, in accordance with the lightning protection program specifications. They can introduce a large part of the lightning current into open discharge. Secondly, the power line and TV signal line of the lead-in room should be introduced after being grounded, so that the local lightning current will leak into the public. In order to ensure a comfortable environment, users should install overvoltage protectors (also known as lightning arresters) for household appliances on the corresponding routes.
For general households, three lightning arresters are required: the first is a single-phase power arrester, installed at the power switch box of the power supply line; the second is a TV feeder lightning arrester, which is installed after the TV feeder enters the room. The third line is the arrester, which is installed on the line after entering the room, so that it can be connected to the inner line through the arrester. The role of the arrester is to limit the voltage of the lightning electromagnetic pulses invaded from the route, thereby completing the comfort of the home appliances protected by the arrester. Appliances should be installed only as far away as possible from external walls or pillars. It is also necessary to repeatedly search for the grounding wire that household appliances are used for. The housing of most of the home appliances is almost connected to this grounding wire. The important purpose is to protect the human body. When the arrester is installed, all the grounding of the arrester is connected to this ground wire. If the ground wire is loosened or disconnected, the housing of the home appliance may be charged, and the arrester cannot malfunction.
201 Stainless Steel Shot
Longlived 201 Stainless Steel Cut Wire Shot are all produced through German craftsmanship with bright, defect-free and pollution-free material. After strict processing like heat treating, wire drawing, electronic spiral cutting, passivation molding and other processes, our products are strictly in a accordance with German Spring Association standard VDFI8001, German industrial standards DIN8201 and American Aerospace Material Specification Standard. It is widely used for surface shot blasting, sand blasting and shot blasting of stainless steel parts, aluminum alloy die castings, and copper alloy parts. According to different composition, stainless steel is classfied several grades such as 304, 410, 430, 201 and 201 stainless steel Cut Wire Shot is the most popular abrasive of them as its excellent performance. The composition of 201 stainless steeel is: C≤0.15, Cr 14.00-16.00, Ni 3.50-5.50, Mn ≤5.50-7.50, P≤0.060, S≤0.030, Si≤1.00. So you can check if 201 Stainless Steel Shot could meet your requirement. Generally 201 stainless tseel cut wire shot could be classfied two kinds. One is as cut and the other is conditioned. Compared with as cut one, conditioned is without sharpe edges and corners and has near round shape. According to this, you can choose the more suitable one.
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