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Electrical apparatus for use in the presence of combustible dust. Part 17. Inspection and maintenance of electrical installations in hazardous areas (other than mines)
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Photovoltaic system. Performance monitoring. Guidelines for measurement, data exchange and analysis
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Smoothing reactors for railway traction substation. General specifications
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Stationary water-tube boilers. Verification calculation. Static strength calculation. Cyclical strength calculation. Brittle-structure resistance calculation
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Radio-frequency cable type PK 50-24-16. Specifications
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