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Common test methods for insulating and sheathing materials of electric and optical cables. Part 4-2. Methods specific to polyethylene and polypropylene compounds. Tensile strength and elongation at break after conditioning at elevated temperature. Wrapping test after conditioning at elevated temperature. Wrapping test after thermal ageing in air. Measurement of mass increase. Long-term stability t
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Stationary diesel and gas fueled power plants with internal combustion engines. General specifications
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Auxiliaries for lamps. Starting devices (other than glow starters). General and safety requirements
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Renewable power engineering. Wind power plants. Maintenance safety requirements
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Gas infrared burners. General technical requirements and acceptance rules
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Secondary batteries and battery installations. Safety requirements. Part 2. Stationary batteries
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