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In this paper is presented a Mobile Integrated System for on the Site Testing (MISST) of equipment intended for use in potentially explosive atmospheres, with type of protection pressurization p, resulting from research activities out by the research and testing team involved. The fundamental aspects of the design, implementation and easy use of such an integrated system have been examined, implemented and tested. A mobile integrated test system for Ex p type of protection applied to equipment in Ex construction, ...

The paper presents aspects of analyzing the AI possibilities in evaluating equipment for explosive atmospheres. In the first part of the paper, the context of the use of equipment in potentially explosive atmospheres is presented. The presence of flammable substances in industrial applications leads to additional requirements for technical equipment used in such spaces. Furthermore, machinery used in such spaces must remain in working order even when the risk of explosion is present. In summary, to confirm eligibi...

The need to develop an integrated testing system for explosion-protected construction equipment with the type of protection "p" arose from practical considerations. The use of a mobile, versatile and adaptable system for the field performance of tests specific to this type of protection applied to explosion-protected construction equipment brings several novel advantages, the most important of which are: grouping all the test equipment required for the tests, elimination of measurement errors by performing several...

The paper presents issues regarding impedance spectroscopy analysis for the identification of intrinsically safe circuits. The first part of the paperwork presents the explosion risk. In industrial applications, the presence of flammable substances leads to additional requirements for technical equipment used in such spaces. On the other hand, technical equipment used in such spaces must remain in working order even when the risk of explosion is high. For this purpose, equipment used in such spaces should be asses...

In the evaluation activity of technical equipment intended to be used in potentially explosive atmospheres, by national and international legislation, non-compliant aspects were often reported regarding the choice, installation and maintenance of this explosion-proof equipment. The following main aspects were pointed out: the equipment that was initially chosen and installed appropriately for the specific application but later, over time, improperly maintained; respectively, the situation in which they were inappr...

The paper-s purpose is to quantify the measurement consequences in the purge test of equipment protected with the -p- type of protection. In order to achieve this objective, the authors involved a simulation process for a pressurization enclosure. The simulation was conducted, in the first stage, without measurement to obtain a reference after that simulation was conducted for scenarios involving sampling separately for each measurement point. The first part of the paper presented the risks of explosion and pressu...

The installation and maintenance of equipment intended for use in potentially explosive environments requires specific knowledge and qualifications for the personnel who commissions and subsequently maintain such equipment. When installing and maintaining electrical equipment, situations may arise which may in turn lead to an unacceptable level of risk with regarding to the activation of ignition sources of potentially explosive atmospheres in their immediate vicinity, due to the failure to comply the principles o...

The paper presents issues regarding uncertainty involved in the test process to ignition of small components for intrinsically safe equipment. In the first part of the paper, the classification of explosion-protected equipment is presented. In power generation and also in other industrial areas, the incidence of flammable substances is a common factor. As a consequence of this, the risk of explosion may arise. On the other hand, installations located in areas endangered by the presence of flammable substances must...

In the paperwork are presented new aspects regarding test results of galvanic cells used in the apparatus intended for use in explosive atmospheres. In the first part of the paper was presented the explosion risk. The explosion risk involved by the presence of technical equipment in areas endangered by the presence of flammable substances is manifested through two sources of risk. The spark ignition is due to electrical equipment, electrostatic discharges and mechanical impact. The mixtures of air with flammable s...

In the paperwork is exposed a practical way for establishing critical points position in a pressurized enclosure by using the computational fluid dynamics (CFD) simulation. It is known that for complex inner structures of pressurized enclosures it's very difficult to precisely establish the position of critical points. Those critical points are points where the concentration of the test gas will reach at the latest to the desired value of concentration in the process of testing. In the first part of the paper were...

This paperwork is based on the data emerged from a conducted research related to a moisture influence on ignition sensitivity of air-methane gas mixture. For the purpose of this demarche it were used method of signal processing approach as it is data filtering and mathematical transform of the experimental data. In the first part of the paper, it was presented the spark test apparatus used for the experimentation and the results of the experimental data obtained during the tests with mixture air-methane and moistu...