Abstract
The evaluation of explosion-proof electrical equipment for certification is particularly important given the risk of explosion and must be minimized. This in order to ensure the safety of life, health of workers, to prevent damage to goods and the environment when they meet the essential security requirements at European level. Directive 2014/34 / EU states that equipment used in explosive atmospheres must be designed to operate without endangering the environment for which it is intended. This paper proposes the study and evaluation of the requirements for flameproof enclosures. In order to verify explosion protection, the representative samples made available by explosion-protected equipment manufacturers are tested under the worst possible conditions that may occur in practice.
Highlights
This paper deals with the analysis of explosion protection characteristics for the flameproof enclosures cable entries
Several studies were made on the reliability of electrical equipment and installations
Types of protection represents all the specific measures that are applied to electrical equipment in order to avoid the ignition of the explosive atmosphere surrounding the equipment
Summary
This paper deals with the analysis of explosion protection characteristics for the flameproof enclosures cable entries. According to IEC 60079-1/2014, the flameproof characteristics of the enclosure are not altered if all entries meet the specific requirements given in this clause and shall be one of the following:. The requirement for at least eight full threads is to ensure that at least five full threads will be engaged when the part is installed in a threaded entry, taking into account the presence of any chamfer or undercut. This requirement is not intended to apply to integral cable glands or similar entry devices provided, as an enclosure part, by the manufacturer
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