When running a business, electrical safety might not be at the top of your daily to-do list. But if you’ve ever seen flickering lights, tripped circuit breakers, or felt power points getting warm, you could have an overloaded circuit—an issue that can put your workplace at risk.

As a Test & Tag provider, we see overloaded circuits more often than you’d think. Here’s what you need to know to keep your business safe.

What is an Overloaded Circuit?

Think of your electrical circuit like a motorway. It’s designed to handle a certain amount of traffic (electricity). When too many cars (appliances) try to use the same lane (circuit), everything slows down—or worse, crashes!

In simple terms, an overloaded circuit happens when too many electrical devices draw more power than the circuit is designed to handle.

Signs Your Circuit is Overloaded

  • 🔌 Circuit breakers keep tripping – If the power keeps cutting out, your circuit may be struggling.
  • 🔥 Power points or plugs feel warm – This could indicate excessive electrical load.
  • ⚡ Lights flicker or dim – Especially when using high-powered appliances.
  • 🔥 A burning smell near outlets – A serious warning sign that needs immediate attention!

If you notice any of these, don’t ignore them. Overloaded circuits can lead to electrical fires, damaged equipment, and even electrical shocks.

Common Causes of Overloaded Circuits in NZ Businesses

  1. Too many devices on one power point – Plugging in multiple appliances using double adapters and multi-boards can push a circuit beyond its limit.
  2. Old or faulty wiring – Many older buildings weren’t designed for modern electrical loads.
  3. High-powered equipment on a shared circuit – Machinery, heaters, or large appliances should have dedicated circuits.
  4. Temporary workstations or seasonal decorations – Extra lighting, computers, or heaters in winter can create unexpected surges.

How to Prevent Overloaded Circuits

✅ Spread out power use – Don’t overload a single socket with multiple devices. Use multiple circuits where possible.
✅ Use surge-protected power boards – These can help distribute power more safely.
✅ Get a professional electrical check-up – A regular test & tag service can help identify risks before they become hazards.
✅ Label high-load appliances – Know which devices draw the most power and ensure they have dedicated circuits.
✅ Upgrade your wiring – If your business operates in an older building, an electrician can assess whether your wiring can handle modern demands.

Stay Safe – Get Your Equipment Checked

Overloaded circuits can be a hidden danger in your workplace. By staying aware of the signs and taking proactive steps, you can protect your staff, equipment, and business.

If you’re unsure whether your electrical setup is safe, a Test & Tag service can check your appliances and advise on any potential risks. Prevention is always better than dealing with a power outage—or worse, an electrical fire.

Need an expert opinion? Contact us today on 0800 454 654 for a professional Test & Tag service and keep your workplace running safely!