"Construcción y ensayo de material eléctrico de seguridad aumentada. Protección ""e""."
CONSTRUCTION AND TEST OF INCREASED SAFETY ELECTRIC MATERIAL. PROTECTION E.
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29.260.20 / Electrical apparatus for explosive atmospheres
CTN 202/SC 31 - Electrical apparatus for explosive atmospheres
IEC 79-7 (Identical)
IEC 79-7:1969 (Identical)
It is cancelled by: UNE-EN 60079-7:2005