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Performance criterion A: The apparatus shall continue to operate as Intended during the test. No degradation of performance or loss of function is allowed below a performance level or permissible loss of performance spelt led by the manufacturer, when the apparatus Is used as intended. If the minimum performance level or the permissible performance loss Is not specified by the manufacturer, then either 0? Performance criterion B: The apparatus shall continue to operate as intended after the test.
During the test, degradation of performance i allowed, however. No change of actual operating stat. If the minimum performance level or the permissible performanc.
The following table 14 series as a guide to formulate the permissible degradation of the qulpment urid. A version in anyother language made by translation under the responsibility of a CENELEC member into its ownlanguage and notified to the Central Secretariat has the same status as the official versions.
This European Standard is to be read in conjunction with EN - Electrical apparatus forpotentially explosive atmospheres General requirements, and with the European Standards for thespecific types of protection listed in the scope of EN This European Standard should not beconsidered in conjunction with any editions of these standards and their amendments published before Annexes designated normative are part of the body of the standard.
Annexes designated informative aregiven only for information. In this standard annex D is normative and annexes A, B and C are informative. Annex A informative Ducting of protective gas Post on Oct views.
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