Petrol stations, warehouses, some production chains - risks exist wherever explosive substances are handled. In this blog post, we will discuss the most important issues related to explosion-hazardous areas and present you with the highest level of safety equipment designed to work in explosive environments.
An ex zone refers to a potentially explosive atmosphere. The risk is particularly present where explosive substances such as dusts, liquids or gases are produced, processed, transported or stored.
The Ex mark is part of the safety marking. It indicates that an explosive atmosphere, i.e. a risk of a potential explosion, may occur in or near a building. It should be displayed in a prominent position.
Minimum requirements concerning safety and hygiene at work in industrial plants, where an explosive atmosphere occurs, are specified in the regulation of the Minister of Economy on minimum requirements concerning safety and hygiene at work related to the possibility of occurrence of an explosive atmosphere in the workplace.
A potentially explosive atmosphere is an area where it is possible that an explosive mixture (of at least 0.01 m3 volume in a confined space) can occur whose explosion would cause a pressure increase of at least 5 kPa.
An explosion will not occur if the flammable substance in a mixture with air takes values below the lower explosive limit and above the upper explosive limit.
The division of explosion danger zones is made on the basis of the probability and duration of occurrence of an explosive atmosphere.
The JUMO PROCESStemp resistance sensor has ATEX and IECEx approvals for hazardous areas. It is ideal for use in hazardous environments due to its robust housing made of stainless steel, titanium, tantalum, Inconel® or HASTELLOY®, an operating temperature of up to 600°C and an IP65 protection rating.