Home appliances lightning protection measures

Nowadays, there are a large number of more expensive home appliances in residential buildings. Since the impact voltage level of household appliances is lower than that of low-voltage power distribution devices, lightning protection measures for low-voltage power systems in residential buildings must be strengthened. According to the statistics of IEC, the probability of the first lightning current exceeding 200kA in nature is less than 2%, and the first lightning current waveform is 10/350μs. Due to the lightning protection of the external lightning and electromagnetic attenuation, about 50% of the lightning energy is human. Therefore, IEC-61312 specifies the discharge current as the first-stage arrester between the LPZ0-A and LPZ0-B lightning protection areas. , should reach 100kA (10/350μs). Therefore, in accordance with the overall lightning protection principle and modern lightning protection technology, according to the lightning electromagnetic pulse (LEMP) protection principle, various operating overvoltages (SEMP), electrostatic discharges (ESD) in LEMP, power network, and building interior electronic systems. Three major sources of interference are considered. We take measures from the power supply and signal aspects:
1. Power Lightning Protection (1) Install the first-level Atport three-phase power lightning protection box in front of the power distribution cabinet to attenuate the strong lightning current and high voltage introduced by the power line.
(2)At the end of the air switch of the power supply and distribution panel of the monitoring system room, it is connected with the second-level power Atguard three-phase power surge protector with light alarm and lightning strike counting function to further attenuate the strong power introduced from the first power cord. Lightning currents and high voltages protect the power supply of equipment throughout the equipment room.
(3) Series 3 LT lightning protection conversion sockets are connected in series before the host computer room to ensure the safety of the host.
(4) The third level LT lightning protection conversion socket is connected in series in front of the monitor to ensure the safety of each monitor and various electrical equipment.
(5) Install the third-level AT RAIL 230FML lightning arrester at the incoming power of the five billiard-type camera guns to effectively attenuate the lightning current and lightning voltage introduced from the power line to protect the security of the camera gun.
(6) Install 12V DC 12V power supply in the 12V power supply camera gun before the third level AT RAIL 24V FML lightning arrester, effectively attenuate the lightning current and lightning voltage introduced from the power line, to protect the security of the camera gun.
2. One-to-one method is used for video transmission between the signal lightning protection peripheral monitoring and monitoring center. In order to better display the overall lightning protection effect, both the camera gun and the monitoring center have a one-to-one correspondence, and signal arresters are installed at both ends of the host and camera gun to protect the safety of the monitoring center and the camera gun. (1) Install the information line protector RB BNC-VIDEO at both ends of the camera gun video cable to attenuate the lightning voltage and lightning current induced on the video line. (2) A control signal protector is installed at both ends of the camera PTZ control line to attenuate the induced lightning voltage and lightning current on the control signal line.

Steel Grating

The steel grating be welded to products . Normally, hot galvanizing will be carried out after end welding process. The range PH6 to PH12.5, a stable protective film will be formed on the zinc surface, the hot dipped galvanized steel grating has good anti-corrosive property. Of course, the steel grating also have other surface treatment, for example painted and powder coated .

Steel grating can be cutting to different kinds of shape as per your special needs.

Steel grating including flat grating, 'I' shape grating, serrated grating.

In generally , the steel grating be used as stair tread, platform, fence, trench cover, ceiling, etc.

The advantage of steel grating :

firm welding

smooth surface

high strength

Steel Grating

Steel Grating,Stainless Steel Grating,Galvanized Steel Grating,Hot Dipped Galvanized Steel Grating

ANPING COUNTY SHANGCHEN WIREMESH PRODUCTS CO.,LTD , http://www.scfiltermesh.com