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Low-voltage switchgear and controlgear. Part 5-3. Devices and switching elements of control circuits. Requirements for proximity devices with defined behaviour under fault conditions

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Copper connection cable sleeves fastened by pressing. Construction and sizes

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Lamps for household use. Methods for determination of energy efficiency

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Explosionproof electrical apparatus. Type of protection 'e'. Technical requirements and methods of testing

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Explosive atmospheres. Part 2. Equipment protection by pressurized enclosure 'p'

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Explosion-proof metal works. General technical requirements and test methods

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