Re: The cleaner did it.
Years ago my workplace had a satellite ground station that needed to run 7x24. The various bits were all plugged in to a wall-mounted power bar that was connected to a hefty Ferrups UPS. About once a week the UPS log would report an "overload". Checking the times of the shutdowns we found it correlated with the cleaning schedule. The regular outlets in the room were all under the equipment tables, so the UPS-supplied power bar was the most readily accessible place to plug in a vacuum cleaner. The cleaners were told to use outlets in the hallway outside the room.
Biting the hand that feeds IT
