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Safety of transformers, reactors, power supply units and combinations thereof. Part 2-14. Particular requirements and tests for variable transformers and power supply units incorporating variable transformers

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Secondary lithium-ion cells for the propulsion of electric road vehicles. Part 2. Reliability and abuse testing

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Risk management. Protection against lightning. Part 2. Risk assessment

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Protection against overcurrent and insulation monitoring mine electric equipment

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Explosive atmospheres. Part 17. Electrical installations inspection and maintenance

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Radio-frequency cables types PK 50-33-15; PK 50-33-15-B and PK 50-33-15-OP. Specifications

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