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Description / Abstract:
This Part of IEC Publication 79 describes the system of marking adopted by the IEC for identifying electrical apparatus intended for use in explosive gas atmospheres and constructed in accordance with other Parts of IEC Publication 79.
Note. -- It is important, in the interest of safety, that this system of marking should not be used for apparatus which is not covered by IEC Publication 79 or which does not comply in all respects with the appropriate part of this Publication.