IEC 60079-7 Explosive atmospheres – Part 7: Equipment protection by increased safety "e"
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IEC 60079-7 Document Information:
Title
Explosive atmospheres – Part 7: Equipment protection by increased safety "e"
Atmosphères explosives – Partie 7: Protection de l'équipement par sécurité augmentée "e"
International Electrotechnical Commission
Publication Date:
Jul 1, 2006
Scope:
This part of IEC 60079 specifies the requirements for the design, construction, testing and marking of electrical apparatus with type of protection increased safety "e" intended for use in explosive gas atmospheres. This standard applies to electrical apparatus where the rated voltage does not exceed 11 kV r.m.s. a.c. or d.c. Additional measures are applied to ensure that the apparatus does not produce arcs, sparks, or excessive temperatures in normal operation or under specified abnormal conditions.
This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence.
NOTE Increased safety "e" can provide Equipment Protection Levels (EPL) Mb or Gb. For further information, see Annex I.
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