Occupational safety standards system. Power frequency electric fields. Permissible levels of field strength and requirements for control at work-places
Cable trunking systems and cable ducting systems for electrical installations. Part 2-3. Particular requirements for slotted cable trunking systems intended for installation in cabinets
Rare-earth metals and their oxides. Spectral method of determination of vanadium, iron, cobalt, silicon, manganese, copper, nickel, lead, titanium, chromium
United power system and isolated power systems. Relay protection and automatic. Automatic control devices of frequency and active power of hydraulic power units of hydraulic and pumped storage power plants. Norms and requirements
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