Every round of load shedding puts your appliances, DB board and wiring under stress. Here's what the constant switching actually does to a home electrical system, and what's worth protecting.
Why switching on and off damages equipment
When power returns after load shedding, the surge of every appliance in the suburb starting at once can push voltage well above normal for a few seconds. Sensitive electronics, fridge compressors and geyser elements take the hit. Over months of repeated cycles, this shortens the life of anything with a motor or a circuit board.
The DB board is your first line of defence
A surge protection device (SPD) installed in your distribution board clamps voltage spikes before they reach your plugs. It is a small piece of equipment compared to the fridge, TV or geyser element it saves, and it protects the whole house rather than one plug point. If your DB board is older or has tripped repeatedly during load shedding, have it inspected.
Warning signs after an outage
Burning smells at the DB board, breakers that trip immediately after power returns, flickering lights on one circuit, or plug points that stopped working are all signs that switching stress has damaged something. Don't reset a breaker repeatedly; that is the system telling you there is a fault.
What we recommend for Bloemfontein homes
At minimum: a whole-house surge protector in the DB board and quality plug-in surge strips for electronics. For homes with frequent geyser or pump issues, a timer or smart switch prevents the element drawing power the moment supply returns. If you're considering an inverter or backup system, have the installation certified; a badly wired backup feed is a fire risk and can void insurance.
Frequently Asked Questions
Can load shedding damage my geyser?
Yes. Thermostats and elements fail more often when power cycles repeatedly, and pressure fluctuations from pumps switching can stress older valves. If your geyser trips the breaker after outages, have it checked.
Is a surge protector plug enough?
Plug-in strips protect only what's plugged into them. A DB-board surge protection device protects every circuit in the house, including the geyser and stove, which don't run through plug strips.
Who can install surge protection in Bloemfontein?
Any qualified electrician can fit an SPD to your DB board. Nexus General DIY installs and certifies surge protection across Bloemfontein, with 24/7 availability for electrical faults.
Need a hand with this?
Our electrical team covers all of Bloemfontein, 24/7.
Electrical in Bloemfontein