IEC 61643-22-2015 低壓電涌保護器--第22部分：電信和信號網(wǎng)絡(luò )的電涌保護器--選擇和應用原則 Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles

This part of IEC 61643 describes the principles for the selection, operation, location and coordination of SPDs connected to telecommunication and signalling networks with nominal system voltages up to 1 000 V r.m.s. a.c. and 1 500 V d.c.
This standard also addresses SPDs that incorporate protection for signalling lines and power lines in the same enclosure (so called multiservice SPDs).dition 2.0 2015-06 INTERNATIONAL STANDARD NORME INTERNATIONALE colour inside Low-voltage surge protective devices – Part 22: Surge protective devices connected to telecommunications and signalling networks – Selection and application principles Parafoudres basse tension – Partie 22: Parafoudres connectés aux réseaux de signaux et de télécommunications – Principes de choix et d'application IEC 61643-22:2015-06(en-fr) THIS PUBLICATIO