Abstract
In paperwork is presented the estimation of the maximum surface temperature of cells exposed to specific tests for the intrinsic safety type of protection. Particularly, it presents the thermal resistance of the short-circuit test-stand results. The first part introduces the aspects regarding the risk of explosion. The risk of explosion occurs due to the presence of technical equipment in areas where flammable substances may occur. The second part itemizes the requirements for the testing of cells. Also, is introduced the stand configuration and performance aspects. The third part of the paper has been dedicated to the presentation and the discussion of the obtained results. The analysis of the test results highlighted the range of thermal resistance. This result could help estimation of the surface temperature of cells based on their capacity and internal resistance. The convection coefficients were determined. The process of deep discharge destroys the inner electrochemical of the cell system. Therefore, it permits energy recovery lower than a fraction of a tenth.
Highlights
In the field of technology, there is a growing need for efficiency, flexibility, and safety
Access to the European market for equipment intended for use in potentially explosive atmospheres is governed by European Directive 2014/34 / EU (2014) [2]
The specific requirements are detailed by specific standards [3]
Summary
In the field of technology, there is a growing need for efficiency, flexibility, and safety. For this purpose, information systems play an important role. The increasing demand for mobility has increased the need for wireless communications and the independence of equipment from electricity networks. Access to the European market for equipment intended for use in potentially explosive atmospheres is governed by European Directive 2014/34 / EU (2014) [2]. This directive mentions the technical characteristics which highlight the qualification (categories) of explosion protection of the equipment. The specific requirements are detailed by specific standards [3]
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