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STN - Slovak standards
Page 2299
STN EN 61663-2 (01/04/2003) Withdrawn
Lightning protection. Telecommunication lines. Part 2: Lines using metallic conductors
Available design: Print design
TNI CLC/TR 50450 (01/11/2025)
Resistibility requirements for equipment having (a) telecommunication port(s)
Available languages: English
Available design: Print design
STN EN 50468 (01/01/2010)
Požiadavky na odolnosť proti prepätiam a nadprúdom spôsobeným bleskom pri zariadeniach s telekomunikačným portom (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN P CLC/TS 61643-12 (01/06/2010)
Nízkonapäťové ochrany pred prepätím. Časť 12: Ochrany pred prepätím zapojené v nízkonapäťových distribučných sieťach. Výber a princípy aplikácie (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN EN IEC 61643-21 (01/05/2026)
Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods
Available languages: English
Available design: Print design
STN EN 61643-21 (01/08/2002)
Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Available languages: English
Available design: Print design
STN EN 61643-21:2002/A1 (01/01/2010) Change
Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Available languages: English
Available design: Print design
STN EN 61643-21:2002/A2 (01/07/2013) Change
Low voltage surge protective devices -- Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Available languages: English
Available design: Print design
STN P CLC/TS 50539-22 (01/10/2010)
Nízkonapäťové prepäťové ochranné prístroje. Prepäťové ochranné prístroje pre špecifické aplikácie vrátane jednosmerného prúdu. Časť 22: Princípy výberu a použitia. Použitie veterných turbín (Norma na priame používanie ako STN).
Available languages: English
Available design: Print design
STN P CLC/TS 61643-22 (01/10/2016)
Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles
Available languages: English
Available design: Print design
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