IEC 60117-2:1960/AMD2:1971 ed1.0

Заменен

Amendment 2 - Recommended graphical symbols - Part 2: Machines, transformers, primary cells and accumulators — 4 стр.

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Действует

Guide for the procurement of power station equipment. Hydraulic turbines, storage pumps and pump-turbines — 18 стр.

Действует

Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays. General — 92 стр.