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Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB's). Part 2-1. Applicability of the general rules to RCCB's functionally independent of line voltage
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Oil-filled cables for alternating voltage 110-500 kV. Specifications
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Low-voltage switchgear and controlgear assemblies. Part 3. Distribution boards intended to be operated by ordinary persons
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