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Elektrická bezpečnost v nízkonapěťových rozvodných sítích se střídavým napětím do 1000 V a se stejnosměrným napětím do 1500 V - Zařízení ke zkoušení, měření nebo sledování činnosti prostředků ochrany - Část 7: Sled fází.
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STANDARD published on 1.12.2022
Designation standards: ČSN EN 61557-7-ed.2:2007/Z1
Classification mark: 356230
Catalog number: 516090
Note: Change
Publication date standards: 1.12.2022
SKU: NS-1091031
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
Measurement of electrical and magnetic quantitiesElectrical insulation in generalPower transmission and distribution networks in general
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence
Standard published on 1.12.2007
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