By Maria Mothibeli, Head of Operations, Southern Power Maintenance
A client whose transformer trips at 2am doesn’t care how many names appear on an on-call list. They need someone to answer, understand the problem and send the right crew. Part of the site may be dark, production may have stopped, and staff may be waiting for instructions. The person on duty cannot spend the first half-hour finding out who is available or where the test equipment is. Operations should settle those details before the phone rings.
Most delays start with ordinary things. A supervisor calls a number that nobody uses anymore. The yard team looks for a test set and discovers that another crew took it to a different site. Stores has the spare, but the person on duty cannot authorise its release. The crew reaches the gate and learns that an induction has expired. During the day, colleagues can usually sort out these problems with a few calls. At 2am, fewer people answer their phones. Meanwhile, the client waits, and the outage continues.
Whoever answers the call needs to slow the conversation down enough to get the facts. Which protection operated? Did anyone see smoke, fire or leaking oil? Has the client isolated the equipment? Has anyone tried to switch it back on? The response lead also needs the name of the person on site who can approve decisions. The caller may not have every answer, particularly in the first few minutes. The team can say, “We do not know yet. We will check these points and call you again by 03:00.” That gives the client something definite without pretending to know more than anyone does.
The answers tell the response lead whom to send. A transformer trip, damaged switchgear and a protection fault require different experience and equipment. If Operations sends the wrong person first, the client waits again while another technician travels to site. The coordinator checks the vehicle, test instruments and likely spares before dispatch. The crew also confirms access, permits, inductions and isolation requirements. The client will enforce its site rules during an outage, and security will stop a crew whose paperwork or access is not in order.
The crew should not need three managers to approve a specialist or an urgent part. Operations should give the duty manager enough authority to keep the response moving. At the equipment, the client will want to know how soon they can restore supply because the outage is costing money. The supervisor has to inspect the fault, understand the risk and decide what the system can carry safely. A rushed diagnosis may damage the equipment again or place the people working around it at further risk.
When the crew makes a temporary repair, the supervisor should tell the client exactly what that means. The client needs to know how much load the system can carry, which signs require another shutdown and when the permanent repair will happen. After the callout, the yard team checks and restocks the equipment. Operations records any temporary arrangement and follows up on every open action. It also fixes the delays that had nothing to do with the fault itself. An expired induction, an old contact number or a missing spare should not cause the same problem twice.
From the client’s side, the callout should feel straightforward. Someone answers the phone, the crew arrives with the correct equipment, security lets the team through, and the person on site can make the required decisions. That happens because people check the roster, tools, spares and access arrangements when no outage is underway. These tasks are easy to postpone. The 2am call exposes every task someone postponed. If the response still relies on memory, favours or luck, Operations has not finished its job.