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Stick insulators of polymeric material of tram and trolleybus contact nets to be used in polluted environmental conditions. General specifications
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Wind power plant constructions. Base safety requirements
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Standard system of vibration. Electric rotative machines of mass up to 0,5 kg. Vibration limits
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Uninterruptible power systems with Lithium-iron phosphate cells. Technical requirements
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Electric and optical fibre cables. Test methods for non-metallic materials. Part 508. Mechanical tests. Pressure test at high temperature for insulation and sheaths
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