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EVS-EN 50065-1:2011 Madalpingelistes elektripaigaldistes kasutatav signalisatsioon sagedusalal 3 kHz kuni 148,5 kHz. Osa 1, Üldnõuded, sagedusalad ja elektromagnetilised häiringud = Signalling on low-voltage electrical installations in the frequency ra...
Translator: Peeter Konjuhhov, Author: Eesti Standardikeskus
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