Lighting of Explosive Facilities: Sourcing Equipment
The current trend, due to the constant increase of energy tariffs and lack of capacity, is for the management of large industrial enterprises to search for energy saving technology.
With the adoption of the Federal Law No. 261-FZ, energy saving and implementation of advanced energy-efficient technology became priorities in various industries. One of the most effective energy-saving measures is the upgrade of lighting systems and transition to LED based lighting systems which have a much lower power consumption compared to conventional light sources (filament, mercury, and sodium lamps) and longer service life. In Russia, the market for LED lighting systems started to develop several years ago, and now is growing rapidly. These lighting technologies are the future for a number of industries, primarily due to the fact that LED light sources are highly cost-effective.
Industry is one of the main energy consumers with applications for LEDs. Industrial lighting involves the use of several types of lighting systems. For lighting workshops, suspended lighting systems are usually used. For special operating conditions, explosion-proof lighting systems can be installed if required. They are generally used at facilities with high fire- and explosion risks. In such premises, the operation specifications for all electrical appliances and equipment have to be met; however, lighting equipment requires special attention.
“High-quality LED based lighting luminaires are suitable for almost any environment. Currently available LED based luminaires, with an operational life of more than 50,000 hours, are replacement-free for at least 10 to 12 years.
Even at the end of their working life these lighting systems still operate due to their sophisticated technology – failure of individual LEDs does not lead to the failure of all other LEDs, as is often the case with low-cost Chinese versions,” says Vadim Dadyka, Director General of AtomSvet.
When choosing lighting devices for facilities with a potentially explosive atmosphere, the prevention of explosions or, in other words, the elimination of the possibility of formation of explosive atmospheres and sources of their ignition is in the focus of attention.
General-purpose industrial process equipment is a possible source of ignition of explosive atmospheres. The ignition can be caused, for example, by an electrostatic discharge or overheated equipment. Explosion-proof equipment is constructed in such a way as to eliminate of the possibility of it being an ignition source and this requires a wide range of special structural and organizational measures. There are several methods of explosion protection aimed at the prevention of possible contact between internal sparking and heating elements of the equipment and the external explosive atmosphere or by explosion localization within the outer casing of equipment.
One of the key technical parameters which must be taken into account when choosing explosion-proof LED based luminaires are the luminous flux (light intensity), power consumption, operating voltage, and explosion-proof marking.
The robust design, the use of high-quality components, and, d most certainly, the level of workmanship and quality control contribute equally to the quality of explosion-proof lighting equipment. Generally, all of the abovementioned requirements to the lighting system design have to be met, and all the steps of the process chain have to be performed.
During the sourcing of lighting equipment for explosive facilities, the following must be taken into consideration above all else:
First and foremost, explosion-proof certification of explosion-proof luminaires. In Russia, the explosion-proof requirements are specified in the Technical Regulation of the Customs Union (the TR of the CU) 012 /2011. The certificate must be issued by a recognized certification body.
Furthermore, the manufacturer profile, reference sheet, and portfolio of completed projects must be considered.
“We represent the oil industry. In workshops we are working with explosive diesel fuel chemicals, therefore, for our lighting we have been looking for the most advanced explosion-proof versions of LED based lighting systems with the best value for money. As a result, we have purchased the explosion-proof luminaires from AtomSvet. The LED based lighting systems produce a very high quality of light, thus, creating a comfortable environment for our staff,” - said Emil Mukhametshin, General Director of the international chemical company Chemicals.
The AtomSvet® X-proof LED luminaire is designed for operation in gas- and dust-hazardous zones 1 and 2, over a wide range of temperatures, both indoors and outdoors. The power supply unit takes care of the start up current and is equipped with high-frequency interference suppression and reactive power compensation systems. AtomSvet® X-proof luminaires enable energy costs to be reduced by up to 70% compared with conventional light sources. Through the use of industrial class electronic components, integrated overvoltage and overheating protection devices, the AtomSvet® X-proof luminaire is reliable, durable and does not require any special disposal or maintenance.
Today, there are relatively few Russian companies able to meet the strict requirements: lack of certification and the short time (1 to 3 years) the manufacturer has been in the market are definitely disturbing factors that lead to extremely high purchase risks. However, products of some Russian manufacturers are not inferior to similar products of European brands and are much more cost-effective. Moreover, the operational life of LEDs is several tens of years, which that makes the explosion-proof luminaires a good long-term profitable investment for large industrial enterprises and commercial industry-specific companies.
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