DS CLC/TS 61643-12:2009

Pajisje mbrojtëse ndaj impulseve goditëse të tensionit të ulët - Pjesa 12: Pajisje mbrojtëse ndaj impulseve goditëse që lidhen me sistemet e shpërndarjes së fuqisë në tension të ulët - Parimet e zgjedhjes dhe zbatimit

Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles

Scope

IEC 61643-12:2008 describes the principles for selection, operation, location and coordination of SPDs to be connected to 50 Hz to 60 Hz a.c. and to d.c. power circuits and equipment rated up to 1 000 V r.m.s. or 1 500 V d.c. Specific change with respect to the previous edition is the incorporation of Amendment 1, which was not published separately due to the number of changes and pages.