NSB Class 72
... that the NSB Class 72 trains could at first not be used on the high-speed Gardermoen Line because their electronics interfered with the signaling system?
... that the <b id="mwG6g"><a href="./NSB_Class_72" id="mwG6k" rel="mw:WikiLink" title="NSB Class 72">NSB Class 72</a></b> trains could at first not be used on the high-speed <a href="./Gardermoen_Line" id="mwG6o" rel="mw:WikiLink" title="Gardermoen Line">Gardermoen Line</a> because their electronics interfered with the signaling system?