Considerations regarding Ex d IIB + H2 method of protection for flameproof electrical equipment
نویسندگان
چکیده
The flameproof enclosure type of protection is still one the safest because it based on a very simple and, therefore, unlikely fallible technology. If an explosive atmosphere penetrates producing trigger, explosion occurs, but remains confined within enclosure. Engineers settled concept that, for IIC areas, have to be necessarily used equipment with cylindrical flame paths, which usually feature round-shape body that make more complicated construction panel boards. EN 60079-1 standard, states flanged paths are allowed in presence hydrogen, recent years, started production “Ex d” explosion-proof enclosures usable, as well gases Group IIB, even hydrogen. This means can environment containing Acetylene is, therefore excluded, has considered environments hydrogen much frequent than those acetylene. purpose this paper assist manufacturers design satisfies requirements standard group IIB and applications order smooth path certification.
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ژورنال
عنوان ژورنال: MATEC web of conferences
سال: 2022
ISSN: ['2261-236X', '2274-7214']
DOI: https://doi.org/10.1051/matecconf/202235400042