Jean Dye

“The loss of power arose as a result of the Emergency Power Off (EPO) circuit activating. It overrode the emergency power back up system. The reason for that activation was unclear although a physical activation of any of the three EPO buttons was excluded on the evidence.”

“There was no light or other indicator within the lab to confirm to those present that the EPO circuit had activated. Likewise there was no restart button within the lab to permit the EPO circuit to be reset.”

“I received evidence that there is no current guidance in relation to the siting of such controls remote from the affected room. I invite review of that guidance and of the need for any consequential training.”