
Electrical Installations For Lighting And Beaconing Of Aerodromes - Maintenance Of Aeronautical Ground Lighting Constant Current Series Circuits
出版:Verband Deutscher Elektrotechniker

专家解读视频
2003 [01/07/2003]DRAFT 1997 [01/12/1997]
DRAFT 2008 issued in June 2008. (06/2008)
EN 61821:2011 - Identical
IEC 61821 Ed. 1.0 - Identical
DIN EN 61821 (2003-07) - Identical