بالاست الکترونیکی ضد انفجار

بالاست های الکترونیکی از جمله تجهیزات روشنایی به حساب می آیند که در صنایع نفت و گاز و پتروشیمی کاربرد فراوانی دارند. به دلیل حساس بودن شرایط محیطی در این صنعت ها و وجود گازهای قابل اشتعال و انفجار، بایستی از بالاست هایی استفاده شود که دارای استانداردهای خاصی از جمله استاندارد بین المللی ضدانفجار (یا اصطلاحاًً Ex) باشند. با توجه به موجود نبودن این نوع بالاست و نداشتن استاندارد مورد نیاز در داخل کشور, این شرکت اقدام به تولید بالاست های الکترونیکی مطابق با استانداردهای روز دنیا کرده و موفق به دریافت گواهینامه استاندارد ضدانفجار از موسسه ECM ایتالیا شده است و هم اکنون در صنایع مختلف مورد استفاده قرار می گیرد. Explosion protected electronic ballast Application This product is electronic ballast for start and operation of fluorescent lamps. it has been designed for explosion proof application and used in hazardous area due to presence of flammable and explosive gases and vapors in Zone 1 and 2 in accordance with ATEX EN 60079-0 EN 60079-1 EN 60079-7 EN 60529. Feature  A newly developed generation of electronic ballast with two "End of Life" (EoL) protection circuits according to IEC 60079-7 EoL test 1: Asymmetric pulse test EoL test 2: Asymmetric power test  Enhanced plant safety due to 2-channel electronic ballast, only the defective lamp is switched off  An integrated DC switching relay makes it easy to incorporate in the emergency lighting system (automatic switch over to DC power)  Increased life time  Simple and versatile installation  Significant savings are achieved through the usage of ballasts with energy classification EEI=A2 3 Amvaje Abi company Amvaje-Abi.com Explosion protected electronic ballast End of Life During the operation of fluorescent light fixtures, the electron-emitting material on the electrodes is consumed. This has the consequence that the energy to release the electrons is increased, and this, in turn, can lead to a higher voltage drop at the electrodes of the fluorescent lamps. Since the electronic ballast functions as a constant current source, a higher voltage drop results in a power consumption increase. This produces a rise in the surface temperature at the lamp tube ends. The temperatures may exceed the limit values specified for explosion proof apparatus and thereby effect the overall explosion protection. EoL switch-off test  EoL Asymmetric pulse test If an increased voltage drop is detected (as in the case of an old fluorescent lamp), the effected lamp power circuit is switched off .  EoL Asymmetric power test In this testing circuit, the increased power consumption loss of the used fluorescent lighting element is measured. The lamp power circuit is switched off before the limit value for power loss (< 10 W) is reached. The following applies to both of the test methods: If the old lamp is replaced with a new one after electronic ballast switch-off, then the ballast functions properly once again. 4 Amvaje Abi company Amvaje-Abi.com Explosion protected electronic ballast Technical data Electronic ballast Model AB72/1-ED Electronic ballast Type 2 x 36/40 W used for single-lamp or two-lamp applications Explosion protection II 2 G EX db eb IIC Gb Certificates IMQ 18 ATEX 009 U Lamp start-up Cold start within 300ms Mains voltage AC: 198 V 264 V 50/60 Hz DC: 176 V 254 V Temperature range -20C +60C Energy classification EEI = A2 Lamp wattage 2 x 36/40 W Rated current at 220 V/240 V 0.32 A/0,30 A Lamp power consumption 64 W System power rating 69 W Power factor cos ϕ 0,97 Protection rating Housing IP54 Terminal IP20 Terminal max 2 x 2.5