Electrical Watch, Theatre Board
A worn bearing. The current rises while the airflow setpoint has not changed. Change the fan bearing within two weeks, outside theatre hours. No urgency tonight.
A motor that will stop in a month is drawing more today than it did last month. With a meter on the circuit that is a line climbing on a chart, weeks before it is a failure. We keep meters on the boards your facility cannot run without, and an engineer reads every alert before it reaches you.
A worn bearing. The current rises while the airflow setpoint has not changed. Change the fan bearing within two weeks, outside theatre hours. No urgency tonight.
Most electrical failures are mechanical first. Something wears, the motor works harder to do the same job, and the current rises long before anything stops.
Westbrook Clinic, the specimen clinic in the scrolled story: Day surgery, imaging and a vaccine cold chain. The supply fan on the theatre board, 10 weeks.
The supply fan ran at 13.8 A for weeks, against 15 A on its nameplate. Then it climbed. In week 6 it crossed 15.8 A, and because the pattern is a known one, the alert named a worn bearing and gave the clinic 2 weeks to change it outside theatre hours.
Changed in week 8, the fan is back at 13.9 A and still watched. Unwatched, it would have reached 20.8 A by week 10, on its way to a failure during a list.
The signs that show in current and voltage at the board. Each one is a fault we have seen before, so an alert can name what it is likely to be.
A fan or pump whose setpoint has not changed and whose current rises week on week is working harder for the same output. A bearing, a belt or a blocked filter, found before it stops.
A compressor or motor whose start draw lasts longer each week is wearing, and a longer start is also what trips a breaker. The two faults are often the same one.
Three phases that read the same for months and then do not. A loose termination or a failing winding shows here first, as heat on one phase before anything is seen or smelled.
One message, after an engineer has read the data. It names the board, the circuit and the likely cause, and says how urgent it is, so your dispatcher knows what to send and when.
Theatres and air handling. Ckt 4, theatre board, AHU-2 supply fan.
Running at 16.5 A against 15 A on the nameplate, climbing for three weeks. A worn bearing. The current rises while the airflow setpoint has not changed.
Change the fan bearing within two weeks, outside theatre hours. No urgency tonight.
We write down the boards the facility cannot run without and put a meter on every critical circuit. The meters stay.
We read each circuit week by week against its own history and its nameplate, and see the ones that are drifting.
An engineer reads the data before anything is sent, and the alert names the board, the circuit, the likely cause and the urgency.
We read the same circuit after the repair, and the quarterly report states the condition of every board watched.
The critical boards and every circuit on them, with why each one is on the list.
3 boards at the specimen clinicThe board, the circuit, the reading against its history, the likely cause and what to do about it, in one message.
An engineer on every oneEvery board watched, what changed, what was found and what was repaired, read at the circuit.
Every quarterA board with a fault today starts with a Fault Study; Electrical Watch keeps watching after it.
A panel record for the critical boards and a meter on each circuit that matters, fitted by a licensed electrician and left in place. A few weeks of readings before an alert can mean anything, because a circuit is judged against its own history.
It watches for what shows in current and voltage. A fault that shows in none of them, such as a crack in an enclosure, it will not see, and the quarterly report says what was watched and what was not. The repair is made by your electrician.