VDE 0170-6-2014 "Explosive atmospheres - Part 7: Equipment protection by increased safety ""e"" (IEC 31/1106/CDV:2014); German version FprEN 60079-7:2014"
"Explosionsgefaehrdete Bereiche - Teil 7: Geraeteschutz durch erhoehte Sicherheit ""e"" (IEC 31/1106/CDV:2014); Deutsche Fassung FprEN 60079-7:2014"
"Explosive atmospheres - Part 7: Equipment protection by increased safety ""e"" (IEC 31/1106/CDV:2014); German version FprEN 60079-7:2014" 是非强制性国家标准,您可以免费下载前三页