diff --git a/Systems/a320-electrical.xml b/Systems/a320-electrical.xml
index 127e6951..50f064ed 100644
--- a/Systems/a320-electrical.xml
+++ b/Systems/a320-electrical.xml
@@ -663,7 +663,8 @@
 		
 		<switch name="/systems/electrical/relay/ac-ess-feed-inverter/contact-pos">
 			<default value="0"/>
-			<test value="1">
+			<test logic="AND" value="1">
+				/instrumentation/airspeed-indicator/indicated-speed-kt ge 50
 				/systems/electrical/bus/ac-1 eq 0
 				/systems/electrical/bus/ac-2 eq 0
 				/controls/electrical/switches/emer-gen-test eq 0