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Brushes for electrical machines. Test methods and apparatus for the measurement of the operational characteristics
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Electrical apparatus for explosive gas atmospheres. Part 5. Powder filling 'q'
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Ring cable thimbles fastened by swaging. Design and dimensions
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Electrical equipment for a.c. voltages from 1 to 750 kV. Requirements for dielectric strength of insulation
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Radiation engineering. Radiation-ecological requirements
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Explosionproof electrical apparatus. Part 7. Type of protection e
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