DS DS/EN 61057
DS DSEN 61057 1997-OCT-22 Aeral devces wth nsulatng boom used for lve workng exceedng 1 kV ac
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This standard is applicable to aerial devices (mobile elevating work platforms (MEWP)), with or without the possibility of an additional jib, as a minimum with an insulating upper boom (extending structure), used for live working on the nominal voltage, which is between 1 kV r.m.s. and 800 kV r.m.s., at power frequency.