Which countermeasures are necessary to prevent the creation of an ATEX area around the electrolyser?

Technical rooms where Enapter electrolysers are installed, shall be maintained Safe (i.e. Non-hazardous) according to IEC60079-10-1, by proper ventilation systems (i. e. with adequate dilution rate). Hydrogen sensor installation is highly recommended to detect any potential leaks and immediately stop H2 production. Enapter Electrolysers are technically leak-tight by design, nevertheless acc. to IEC60079-10-1, they shall be considered a potential source of secondary release grade (i.e. not expected during normal operation of the equipment) for assessment of the ventilation.

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