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United power system and isolated power systems. Relay protection. Inductive measuring current transformers for protection with a closed magnetic circuit. Methodology guidelines for determination of time to saturation during short circuits
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Energy efficiency and savings calculation for countries, regions and cities
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Fur skins and packer pelts dressing and coloured. Determination of colour resistance to friction
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Footwear. Test methods for uppers, lining and insocks. Seam strength
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