This has been done on the basis that a casualty resulting from a 'conventional' cause, e.g. steering-gear failure, fire or collision, could endanger the power plant.
Oku kwenzeke ngokwendlela eneziphumo ezisuka kwinkonzo ebangwa luxhuzulo lwegiya olutshonayo, umlilo okanye ukutshayisana kunganobungozi bamandla esityalo.