How can a anxiety lightning protection
[REVIEW] Recently, the municipal meteorological bureau director Yang Hongming lightning led scientists to the countryside publicity lightning weather knowledge, we found that some residents in rural areas housing the city\\ s roof installed , water heaters due to the lack of these mine facilities, a move Ray\\ s problems.
At present, solar water heaters strokes occurred in 4 cases mine incident
Recently, the Municipal Bureau of Meteorology weather mine director Yang Hongming led scientists to the countryside publicity lightning knowledge, we found that some residents in rural areas housing the city\\ s roof installed solar water heaters, water heaters due to the lack of these mine facilities, a move the hidden mine .
\"The city estimates more than 5,000 solar water heaters, and some are also installed in the school dormitory roof. Water heater installed in the roof, with a security risk, appealed to residents to promote mine awareness, mine water heater initiative to do the work without the required placement of anti- mine facilities, in accordance with relevant provisions of the law enforcement agencies can weather more than 500 yuan imposed a fine of 30,000 yuan. \"
5,000 solar water heaters move the status quo Ray
Recently, Yang Hongming housing area to a small village Lotus Township inspection mine work, we found the village several solar water heaters.
Summer is high season for thunderstorms, but the city is more than mine. This is mainly due to erosion of the hilly landscape is Suining, hilly, Gully aspect, to spread all over the canal, the middle of the low-lying four-week high, coupled with the outer edge of the subtropical high in summer climate, abundant water vapor, so prone to lightning phenomenon. The solar water heaters are generally placed in the roof, if the anxiety of mine facilities, are more vulnerable to lightning.
\"Solar water heaters, metal structures are more common with electric heating, and roof installation location is generally higher than the height of lightning rod and lightning protection zone, in the absence of effective lightning protection measures, it is easy to become a lightning target. Ranging from water heater explosion destroyed, while in direct electrical injury were the survey shows that since April this year, within the city there were 963 times the number of lightning, thunder and lightning intensity of 57.6KA. \"Yang said. \"According to preliminary estimates, the city\\ s rural areas are currently about 5,000 various types of roof water heaters, water heaters being struck by lightning cases have occurred as of now, the city, there were four events from the water heater lead mine.\"
Dealers that sell water heaters do not need lightning protection
Not long ago, as a consumer reporter came to City a solar water heater sales store and see the huge store on display at forty-five kinds of brands of solar water heaters. Boss said: \"Last year we sold more than 500, are not safe lightning protection, we use the water heater you though, no problem, because there is no sharp part of the water heater.\" Vendor of mine work on solar water heaters so indifferent, Reporters are very worried.
Product safety requirements by country, solar water heaters to be installed lightning protection facilities, and its products also have the instructions to install lightning protection facilities, notes, general dealer has failed to install, is the disregard for life and property safety of consumers.
According to reports, if mine own solar water heater deal, first distance away from the installation of water heater 3 m 1.5 m above the water heater at the top of the lightning rod, and do protect against lightning; Secondly, from the roof the introduction of solar water heater indoor power lines, signal lines, water pipes should be metal shielding; Finally, you should install leakage protection switch back-end SPD (surge protector), and do protect against lightning and the lightning induced wave intrusion.
According to statistics, Suining average number of lightning strikes up to 30 days to record up to 60 days, is more than mine. Farmers mine awareness weak, so the solar water heater installed lightning protection for these facilities is a priority. It is understood that the wall below the floor construction of solar water heater, do not worry about summer lightning problems.
Focus is to prevent an extension of flammable and explosive places
At 14:40 on August 30, 2007 about the British soaked village of Carp River County Chi Yang Hui 10 group home struck by lightning, 12-year-old student died on the spot. According to the survey, the day of the accident, lightning is the summer period, Yang Hui was at home watching TV, suddenly found TV outlet in the sparkle, immediately went to pull the plug, and instantly a strong line of lightning current through the light spot to Yang Hui fatal. According to the survey, Yang Hui\\ s family was then struck by lightning off in the area, building on top of the CCTV line lightning protection measures are not taken; Second, the overhead wires from the house side of the house too close (less than 3 meters), hundreds of thousands of volts of lightning voltage the formation of lightning counter-attack; Furthermore, the whole house is not installed lightning protection devices, power line installation is extremely irregular.
At 3:35 on August 16, 2009, Berlin Township, the village housing area Lotus group 3 a lightning accident occurred, the lightning causing Wang Chenghai residential building and the surrounding villagers were Jihuai appliances, resulting in total direct economic losses of 3.8 million. The same reason lightning lightning lightning protection devices are not installed, the roof water heater is not connected to potential measures, overhead power supply, signal line lightning protection measures are not taken.
\"Mine detection involves various sectors and systems, with emphasis on flammable and explosive places, schools, hospitals, financial institutions, construction projects and enterprises, institutions, but some units did not take the initiative to submit applications for mine safety inspection, or only a partial test. Overall, the city\\ s annual inspection of lightning protection device surface is still relatively narrow, some units can not attract enough attention, as part of the communications sector and individual enterprises, institutions, and every year its been due to lightning The loss is not small. Furthermore, is part of the construction project will be construction of lightning protection devices are not reviewed construction, after completion of the project did not pass acceptance testing will be completed and put into use in rural areas, urban building rooftop solar water heaters and other electrical devices generally do not take lightning protection measures which are very security risks. \"Yang said.
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Occurrence of lightning in the atmosphere of intense discharge phenomenon, usually in a thundercloud (cumulonimbus) has happened. Lightning can be divided according to their location of occurrence of lightning within the cloud, inter-cloud lightning, cloud-air lightning and cloud-ground lightning. Cloud to ground lightning discharge is formed when the intense thermal effects, electrical effects, mechanical effects and electromagnetic effects, can be very destructive, the production of people\\ s lives and safety of a larger threat.
Most vulnerable to lightning strikes in life objects are the building angle, roof, eaves, gables, parapet; building on the exhaust, the exhaust pipe; a subsidiary of metal buildings, such as solar water heaters, etc.; tall tree; Square, playgrounds and other places of the flag; transmission and distribution lines and towers, radio tower, communication base stations, billboards and other large metal objects tall.