Russian standards PDF

Electrical installations of traction power supply systems for direct current railway. Earthing requirements

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Electrical installations of traction power supply systems for alternating current railway. Earthing requirements

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United power system and isolated power systems. Relay protection and automation. Automatic emergency control of electric power systems. Automatic unloading devices in case of power overload. Norms and requirements

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Electronics automated design systems. Information support. Technical characteristics of electronic components. Optoelectronic devices. Classification

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Electronics automated design systems. Information support. Technical characteristics of electronic components. Quantum electronics products. Classification

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Electronics automated design systems. Information support. Technical characteristics of electronic components. Current sources. Classification

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