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ČSN EN IEC 61643-41:2026/A11 (341392) Change

Ochrany před přepětím nízkého napětí - Část 41: Ochrany před přepětím zapojené v DC sítích nízkého napětí - Požadavky a zkušební metody (Norma k přímému použití jako ČSN).

Change published on 1.3.2026

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ČSN EN 60068-2-1-ed.2:2008/Z1 (345791) Change

Zkoušení vlivů prostředí - Část 2-1: Zkoušky - Zkouška A: Chlad.

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ČSN EN IEC 60068-2-1-ed.3 (345791)

Environmental testing - Part 2-1: Tests - Test A: Cold

Standard published on 1.3.2026

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ČSN EN IEC 60068-2-2-ed.2 (345791)

Environmental testing - Part 2-2: Tests - Test B: Dry heat

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ČSN EN 60068-2-2:2008/Z1 (345791) Change

Zkoušení vlivů prostředí - Část 2-2: Zkoušky - Zkouška B: Suché teplo.

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ČSN EN IEC 63360 (346742)

Fluids for electrotechnical application - Specification of gases alternative to SF 6 to be used in electrical power equipment

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ČSN EN IEC 61109-ed.2 (348120)

Insulators for overhead lines - Composite suspension and tension insulators with AC voltage greater than 1 000 V and DC voltage greater than 1 500 V - Definitions, test methods and acceptance criteria

Standard published on 1.3.2026

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ČSN EN 61109:2009/Z1 (348120) Change

Izolátory pro venkovní vedení - Kompozitní závěsné a kotevní izolátory pro systémy střídavého napětí se jmenovitým napětím vyšším než 1000 V - Definice, zkušební metody a přejímací kritéria.

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ČSN EN IEC 63522-21 (353413)

Electrical relays - Tests and measurements - Part 21: Thermal endurance

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ČSN EN IEC 63522-31 (353413)

Electrical relays - Tests and measurements - Part 31: Magnetic remanence

Standard published on 1.3.2026

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