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BS 7870-4.20:2011

Действует
LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for distribution cables with extruded insulation for rated voltages of 11 kV to 33 kV. Three-core 11 kV cables — 28 стр.
BS 7870-4.20:1999
Заменен
BS 7870-4.20:2011
Действует