IEC 61823 pdf download.Electrical installations for lighting and beaconing of aerodromes – AGL series transformers 1 Scope This standard specifies the characteristics of aeronautical ground lighting series transformers (AGLST) used in aeronautical ground lighting for 6,6 A series circuits, at a service voltage of up to 5 kV, supplied by constant current regulators up to 30 kVA in rating. AGL...