Abstract
The use of wireless equipment in the industrial field is a modern trend both in terms of communication equipment, monitoring of gas concentration, environment or installations but also for remote controls and power backup. The energy source for such equipment are cells and batteries. The first part of the article addresses the risk of explosion and the peculiarities of flammable atmospheres. The second part was dedicated to the presentation of the types of cells suitable for use in explosive atmospheres. The last part presents a summary of the specific requirements of cells and batteries regarding the explosion protection.
Highlights
IntroductionThe use of wireless equipment in the industrial field is a modern trend both in terms of communication equipment, monitoring of gas concentration, environment or installations and for remote controls
The use of wireless equipment in the industrial field is a modern trend both in terms of communication equipment, monitoring of gas concentration, environment or installations and for remote controls.The energy source for such equipment are cells and batteries
- flameproof enclosures “d” - the parts which can ignite an explosive gas atmosphere are placed into enclosure which can withstand the pressure developed during an internal explosion of an explosive mixture, and which prevents the transmission of the explosion to the explosive gas atmosphere surrounding the enclosure; d) limiting energy in circuits that can be a source of ignition: - intrinsic safety “i” - restriction of electrical energy within equipment and of interconnecting wiring exposed to the explosive atmosphere to a level below that which can cause ignition by either sparking or heating effects
Summary
The use of wireless equipment in the industrial field is a modern trend both in terms of communication equipment, monitoring of gas concentration, environment or installations and for remote controls. The energy source for such equipment are cells and batteries. They can act as an uninterruptible power supply in case of interruption or failure of the main power supply or can represent the main power supply of a circuit or entire equipment (hand-held, transportable and movable equipment). When we talk about the cells and batteries intended for use in equipment operating in explosive atmospheres, they must comply with the safety requirements related to the risk of explosion
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