United power system and isolated power systems. Operational dispatch management. Checking the compliance of the nominal tripping current of circuit breakers at voltage 110 kV and above with the calculated levels of short-circuit currents. Norms and requirements
Ferrochromium, ferrosilicochromium, ferrosilicon, ferrosilicomanganese, ferromanganese. Methods of sampling and sample preparation for chemical and physical-chemical analyses
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