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CAN/CSA E79-7-95(R2000)
Electrical Apparatus for Explosive Gas Atmospheres - Part 7: Increased Safety 'e' (Adopted IEC 79-7:1990, second edition, including Amendment 1:1991 and Amendment 2:1993, with Canadian deviations)
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1. ScopeThis part of IEC 79 prescribes the specific requirements for the design, construction, testing, and marking of electrical apparatus, with a rated value of supply voltage not exceeding 11 kV r.m.s. a.c. or d.c., with type of protection ''e'' that does not produce arcs, sparks, or dangerous temperatures in normal operation.These specific requirements are additional to the general requirements in IEC 79-0 which apply to type of protection ''e'' unless specifically excluded. /1. Domaine d'applicationLa presente partie de la CEI 79 prescrit les regles specifiques de conception, de construction, d'epreuves et de marquage du materiel electrique ayant une valeur assignee de tension d'alimentation ne depassant pas 11 kV en courant alternatif (valeur efficace) ou en courant continu, avec mode de protection ''e'', qui, en fonctionnement normal, ne produit ni arc, ni etincelles, ni temperatures dangereuses.Les presentes regles specifiques completent les regles generales de la CEI 79-0 qui sont applicables au mode de protection ''e'' sauf si elles sont specifiquement exclues.