基本信息
标准编号: CEI 20-19/7 Ed. 4 (1996)
发布时间:1996/12/1 0:00:00
标准类别:Standard
出版单位:Comitato Elettrotecnico Italiano
标准页数:14
标准备注
Supersedes CEI 20-19, CEI 20-19 V1 and CEI 20-19 V2 (04/2004) Superseded by CEI EN 50525-2-42 but remains current and will be withdrawn on 17/01/2014. (07/2012)