The purchase of the switch socket is very important, because the use of the wall switch socket will directly affect our life safety. The reason why the plug cannot be inserted into the socket during the daily use process is that the temperature of the live component may cause the housing to be severely deformed when the temperature rises. The switch socket cannot be operated, and some even cause the live parts in the socket to come into contact with each other, forming a short circuit and causing a fire.
When we buy switch sockets, Siemens reminds you to start by paying attention to the following aspects:
A. Inspection: Packing is complete, information is complete, design is exquisite, product packaging should be standardized and complete, design and print beautifully, there should be a clear trademark, manufacturer address, telephone, company website and other information, there are instructions for use and certification, attachment screws And so on, whether all switches have genuine vouchers, such as security signs.
B. Socket appearance: The surface is smooth and smooth, no bubbles, no scratches, no stains, and even color and texture. A good socket uses strong material stability, is not easy to corrode, and has a smooth and clean surface, no bubbles, no scratches, no stains, and a uniform color and texture. The naked eye can clearly see that the handle is very good. The poor surface is not smooth, there are many burrs on the edges, the switch buttons have a light and crisp sound, and the outlet of the socket needs to be equipped with a protective door, and the plug does not need much force.
C. Degree of tightness of the test switch socket: The socket should be inserted and removed smoothly, preferably with a protective door; when there is shaking, there will be no sound inside. When the switch socket is used, it is found that the socket temperature is too high or there is a pull flame, and the plug is If the socket is in poor contact and the plug is too loose or too tight, stop using it and replace it in time.
E. Component: Copper switches are relatively heavy. After the goods are handed, a good switch socket should have enough weight. The copper in the switch is the most critical part. If it is an alloy or a thin copper sheet, it will not have the same weight and quality. Products with light weight must be suspected of being cut corners and should be carefully selected.
F. Accessories: The base of the cold-rolled steel plate is more durable and the copper screws conduct electricity better. The switch socket must be screwed to its base to be fixed to the wall. The firmness of the brand base will also affect the use of the switch panel. Now some brands use cold rolling steel to make this base, which will be more durable. In addition, there are screws fixing the thread head behind the switch socket. The good ones should be pure copper. The conductive extension is good, and the bigger ones. And some of the switch socket's screws are copper-plated or small, which all indicate its quality. Not very good.
High quality switch socket structure features:
Premium switch sockets have outstanding performance in terms of materials, design, and safety. Midea Matsushita Electric Co., Ltd. specializes in the production (supply) of sales switch socket products. The company has a good market reputation, professional sales and technical service team, with years of experience in operating switch sockets, has won the praise of domestic and foreign manufacturers. This article describes the structural features of our company's switch socket products:
A, using tin-phosphor bronze, insert fastening: socket copper using tin-phosphor bronze material, high strength, good plasticity, with good conductivity, not easy to deformation;
B. Design of protection against electric shock to ensure safe use: Both power sockets have protective doors to prevent children from getting an electric shock.
C. Adding lightning protection functions to protect life safety: Adding lightning protection modules, one more layer of protection, effectively reducing damage to people and property caused by lightning strikes and overvoltages (this is not available in many similar products);
D, unique structural design, accurate plugging and unmating: cylindrical plug, flat plug has a special plug to ensure the stability of the current.
E. Formulation icons and carrier cards, easy to use: information socket icons and carrier cards, can easily identify the use of the socket and loop, easy to use and check;
F, long-distance design, reduce the use of mutual interference: two, three hole spacing of 42MM, you can insert two large insert Lanxi, improve efficiency.
Switch socket Siemens switch socket switch socket top ten brand outlet switch the United States Siemens
Achromat doublet lenses have significantly better optical performance than singlet lenses in visible imaging and laser beam manipulation applications.It consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at two well-separated wavelengths, usually in the blue and red region of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction limited focusing of a laser beam. Negative Achromat is typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, spherical aberration and coma are greatly reduced. We always make our achromats as precise specifications and tolerances for uncompromising image quality upon customer's requirement.
Doublet Achromatic Lens Triplet Achromatic Lens
Specification of our achromatic lens as follow:
*Material:BK7,ZF2,ZF7(or according to your request)
*Dia.:+0/-0.05
*Center thickness tolerance:+/-0.1
*Surface quality: 60-40 Scrath/Dig
*Surface figure:0.5-0.2
*Centration < 3arc min
*Chamfer:0.1-0.25*45 degrees
*Design wavelength:486.1mm,587.6mm,656.3mm and upon request.
Achromatic Doublet Lens,Negative Optical Achromats Lens,Optical Achromatic Lens,Big Dimension Achromatic Lens
China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com