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Electrical apparatus for potentially explosive atmospheres. Group I. Intrinsically safe systems. Part 1. Construction and testing
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Electromagnetic relays type ANSh2 and ANSh5. Quality requirements for certified production
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Porcelain dick insulators for contact net of electrified railways. General specifications
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Wind turbines. Power performance measurements of electricity producing wind turbines
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Radio-frequency cables types PK 50-44-15; PK 50-44-15-B and PK 50-44-15-OP. Specifications
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Low-voltage switchgear and controlgear. Part 7.3. Ancillary equipment. Safety requirements for fuse terminal blocks
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