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CONSIDERATIONS REGARDING THE REPAIR OF ELECTRICAL EQUIPMENT USED IN POTENTIALLY EXPLOSIVE ATMOSPHERE
Abstract
The use of electrical equipment in potentially explosive atmospheres requires special attention, namely from the point of view of their construction and maintenance. Together with the technological developments, these objectives can easily be met, objectives which are defined by European standards concerning the construction, use and maintenance of explosive proof equipment. Evaluation of explosion-proof protected electrical equipment in scope of certification is extremely important considering the risk of explosion that has to be minimized in order to ensure life safety and health of workers and to prevent damaging of property and the environment, as well as free movement of goods when they meet the essential safety requirements at European level. The purpose of this paper is to present the importance of the correct maintenance and repair of electrical equipment with type of protection flameproof enclosure „d” and type of protection increased safety „e” designed to be used in explosive atmosphere. Electrical equipment that operates in potentially explosive atmosphere, have characteristics specially designed for operation in this area. For security reasons, it is essential that the integrity of these special features be preserved in these areas throughout the life of the installation. To prevent an explosion it is very important that the maintenance and repair of electrical equipment is done correctly and is performed by trained personnel who know the principles of type of protection. The general requirements for the repair of an electrical equipment are established by SR -EN 60079 19.
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References6
Directive 2014/34/EU of the European Parliament and of the Council of 26 February 2014 on the harmonization of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast) Text with EEA relevance, 2014.
Standard IEC 60079-0 - Explosive atmospheres - Part 0: General requirements, 2013.
Standard IEC 60079-1 - Explosive atmospheres - Part 1: Equipment protection by flameproof enclosure "d", 2015.
Standard IEC 60079-7 - Explosive atmospheres - Part 7: Equipment protection by increased safety "e", 2016
Standard IEC 60079-17 - Explosive atmospheres - Part 17: Electrical installations inspection and maintenance, 2014
Standard IEC 60079-19 - Explosive atmospheres – Part19: Equipment repair, overhaul and reclamation, 2011
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