STN - Slovenské národní normy

Electrical apparatus for explosive gas atmospheres. Part 26: Construction, test and marking of Group II Category 1 G electrical apparatus

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Explosive atmospheres - Part 26: Equipment with Equipment Protection Level (EPL) Ga

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Electrical apparatus for explosive gas atmospheres. Part 27: Fieldbus intrinsically safe concept (FISCO) and Fieldbus non-incendive concept (FNICO)

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Explosive atmospheres. Part 28: Protection of equipment and transmission systems using optical radiation

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Explosive atmospheres. Part 29-1: Gas detectors. Performance requirements of detectors for flammable gases

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Explosive atmospheres. Part 29-2: Gas detectors. Selection, installation, use and maintenance of detectors for flammable gases and oxygen

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Explosive atmospheres. Part 30-1: Electrical resistance trace heating. General and testing requirements

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Explosive atmospheres. Part 30-2: Electrical resistance trace heating. Application guide for design, installation and maintenance

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Výbušné atmosféry. Časť 31: Ochrana zariadenia pred vznietením prachu pomocou uzáveru "t" (Norma na priame používanie ako STN).

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Explosive atmospheres.Part 31:Equipment dust ignition protection by enclosure "t"

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