BS EN 50550:2011+A1:2014现行

Pertains to power frequency overvoltage protection devices (hereafter referred to as "POP") for household and similar uses, with a rated frequency of 50 Hz, a rated voltage 230 V a.c. (between phase and neutral), intended to be used in combination with a main protective device being either a CB in compliance with EN 60898-1 or EN 60898-2, a RCCB in compliance with EN 61008-1 or a RCBO in compliance with EN 61009-1.

Supersedes 09/30212624 DC. (06/2011) 2011 Edition Re-issued in October 2014 & incorporates AMD 1 2014. 2011 Edition along with its corrigendum remains current and will be withdrawn on 28/07/2017. Supersedes 14/30297726 DC. (10/2014)