Shenxay portlashdan himoyalangan
Portlashdan himoyalangan yoritish moslamalarining dizayni portlovchi gaz muhitining o'ziga xos zonasi va maydoniga moslashtirilgan bo'lishi kerak.. Masalan; misol uchun, zonasida 1 hududlar, olovga chidamli (portlashga chidamli) yoritish moslamalari majburiydir; zonasida 2, qattiq yoritish uchun ham olovga chidamli, ham yuqori xavfsizlik moslamalaridan foydalanish mumkin, while portable lighting must be flameproof. The selected explosion-proof lighting’s level or group should not be lower than the level and group of the explosive mixtures present in the hazardous environment. Qo'shimcha, the impact of the environment on explosion-proof lighting should be considered, including requirements for ambient harorat, air humidity, and resistance to corrosive or contaminant substances. The choice of protection and corrosion resistance ratings for lighting fixtures is critical, especially in portlovchi gas environments with corrosive gases.
Historically, in petrochemical industries, olovga chidamli lighting fixtures were predominantly used in hazardous areas. Biroq, with the widespread application of increased-safety electrical equipment in Zone 2 xavfli hududlar, increased-safety and composite lighting fixtures are increasingly being used. Compared to flameproof fixtures, increased-safety fixtures offer advantages like lighter weight, lower cost, easier installation and maintenance, and longer service life. The commonly used composite electrical equipment in petrochemical industries combines flameproof and increased-safety features, typically consisting of flameproof components, increased-safety terminals, and an increased-safety enclosure. This composite design offers the safety of flameproof fixtures along with the benefits of increased-safety models.
In LED explosion-proof lighting, both flameproof and increased-safety properties are utilized. For portable fixtures, flameproof components are used. Regardless of the type of explosion-proof component, the level of explosion protection must not be lower than the level and group of the explosive mixtures in the hazardous environment. Albatta, when using LED explosion-proof lighting, factors such as the installation environment, atrof-muhit harorati, air humidity, and control of corrosive and contaminant substances should also be considered.