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Top Electrical Mistakes Inner West Sydney Homeowners Make & How to Fix Them

Table of Contents

Table of Contents

Electricity, while a fundamental part of our everyday lives, can pose significant dangers if not handled correctly.

While it’s easy to take for granted the flick of a switch or the hum of an appliance, it’s essential to remember the risks involved in electrical mishaps.

Did you know that many electrical hazards in homes stem from common electrical mistakes that homeowners make? Well, in this article, we’re going to tell you about some of the most common electrical mistakes we see in homes in Inner West Sydney. We’ll also talk about the potential consequences of these mistakes and how you can prevent them, thereby ensuring a safer and more efficient home.

Key Takeaways

  • Grounding electrical systems is crucial for safety, as it helps prevent shocks, electrical fires, and appliance damage, especially if power surges occur.
  • Homeowners often make the mistake of overloading circuits, which can cause overheating and fires; resolving this issue may require electrical panel upgrades or redistributing electrical loads.
  • Ignoring electrical surges, using incorrect light bulb wattage, and overlooking GFCI installation in wet areas can cause damage to appliances, increase energy consumption, and pose serious safety hazards.

Overlooking the Importance of Grounding

Grounding holds significant importance in any electrical system. It serves as a safeguard, providing a safe path for excess electricity to dissipate into the ground. Unfortunately, the importance of grounding is often overlooked, leading to an increased risk of electrical shocks, sparks, and potential fires.

Moreover, ungrounded outlets can cause damage to connected appliances, especially during power surges or when damaged power lines are involved.

The Role of a Ground Wire

In a residential electrical system, the ground wire plays a pivotal role in averting electrical accidents and fires. This wire provides an additional pathway for electrical currents to travel in the event of a short circuit or other electrical mishaps. In simpler terms, the ground wire serves as a safety net, redirecting any excess current safely to the ground rather than allowing it to pass through a person, thus preventing electrical shocks.

Consequences of Ungrounded Outlets

Ungrounded outlets present numerous risks, with the most notable being an increased likelihood of electric shock. Other potential hazards include health risks and increased risk of overloads or surges. These outlets can cause surges in electrical current, leading to a shortened lifespan for appliances, computers, and other equipment.

Ensuring that outlets are suitably grounded is vital for protecting electronic appliances from potential damage. Indications of ungrounded outlets can include:

  • Appliances not functioning properly
  • Potential risk of receiving an electric shock when using a faulty appliance
  • Challenges in reading indicator lights on the outlet

Misjudging Circuit Load Capacity

Misjudging their circuit load capacity is another common error made by homeowners. An overloaded circuit occurs when an excessive amount of electricity flows through a circuit. The result?

  • Overheating
  • Melting of insulation around wiring
  • Potential appliance damage
  • Elevated risk of fire

Being aware of the load capacity of your circuits is vital in preventing such hazards.

Recognising Overloaded Circuits

The first step towards resolving the problem is identifying an overloaded circuit. Typical indicators include frequent circuit breaker trips and flickering lights.

The common causes of circuit overload include an excessive number of appliances plugged into a single circuit or the absence of a suitable breaker to prevent overheating. Overloaded circuits can present several hazards, such as an elevated risk of electrical fires, harm to wiring and electrical devices, overheating outlets, and abrupt malfunctions in electrical equipment.

Preventing electric circuit overloads requires homeowners to:

  • Regularly check wiring and appliances for damage
  • Distribute plug-in devices evenly across general-purpose circuits
  • Disconnect appliances when they are not in use.

Solutions for Circuit Overload

A solution for circuit overload is to upgrade the electrical panel. This enhances the capacity of the electrical system and incorporates circuit breakers that trip when the current exceeds safe levels. While the costs for upgrading an electrical panel can vary, homeowners can typically expect a cost between $1,200 and $2,000.

Redistributing electrical loads serves as another solution. This includes:

  • Diverting excess power from heavily loaded sources to underutilised sources
  • Dynamically redistributing workloads as demand fluctuates
  • Evenly distributing current draw throughout the system

Ignoring Frequent Electrical Surges

Consequences can be severe when frequent electrical surges are ignored. Electrical surges, defined as significant voltage spikes in the power line, result in an increase in electric current at the outlet. These surges can be caused by:

  • Electrical overload
  • Faulty wiring
  • Lightning strikes
  • Power outages or blackouts

It is important to address these issues to prevent damage to electrical appliances and potential fire hazards.

Frequent surges can lead to substantial damage to most of your household devices. So, what can you do to protect your home?

Identifying Surge Sources

Identifying the sources of electrical surges is the initial step. These can include lightning strikes and faulty appliances. Large appliances like refrigerators, washing machines, and dryers are common sources of electrical surges in households.

When lightning strikes, it can induce a rapid rise in voltage, resulting in electrical surges that can propagate through the power lines and impact electrical devices and appliances linked to the same circuit. Even utility company equipment can cause power surges due to equipment breakdown or malfunction within the company’s infrastructure.

Protecting Against Surges

Protection against surges is the next step following their identification. This can be achieved by using surge protectors and ensuring proper grounding. Surge protectors redirect surplus voltage from electrical surges into the grounding wire of an outlet, preventing it from reaching and causing harm to the connected devices. Regular testing of the surge protector is necessary to ensure its functionality.

Ignoring frequent surges in the electric current can indeed lead to substantial damage to most of your household devices.

Neglecting Proper Insulation Around Wiring

To prevent electrical hazards and energy loss, it’s essential to maintain proper insulation around electrical wiring. However, this is often overlooked, leading to potential dangers, such as loose electrical connections, short circuits, and potential fire hazards.

Let’s delve deeper into how to check the integrity of insulation and the benefits of upgrading insulation.

Checking Insulation Integrity

Checking the integrity of insulation around wiring involves looking for signs of degradation, such as damaged, cracked, or missing wire insulation, discoloured outlets and sparking, and circuit breaker nuisance tripping. The necessary tools for conducting this assessment include an insulation tester or megohmmeter, which can measure insulation resistance and confirm the lack of continuity between conductors.

The insulation around wiring should be checked for integrity every six months.

Upgrading Insulation

Upgrading the insulation around wiring can prevent the flow of electric current to unwanted areas, thus reducing the risk of short circuits or electrocution. Furthermore, proper insulation improves energy efficiency by minimising heat transfer. It’s crucial to look out for indicators that suggest the need for an insulation upgrade, such as high energy bills, continuous running of the air conditioner or furnace, presence of pests, and damaged or missing insulation.

Inappropriate Use of Extension Cords

Inappropriate use of extension cords is another common mistake. While seemingly harmless, excessive use of extension cords can result in harm to appliances and create safety hazards.

Most household extension cords can safely handle 10-15 amps, but it’s critical to avoid overloading the extension cord beyond its capacity to mitigate the risk of fire hazards.

Limitations of Extension Cords

There are certain limitations of extension cords. For instance, they are not suitable for heavy appliances due to the potential hazards they pose, such as excessive heating, voltage drop, and the practice of daisy chaining. The typical extension cord has a maximum amperage rating, usually around 15 amps, and for safety reasons, it’s advisable not to continuously load it past 80%.

Using extension cords for permanent appliance connections can lead to deterioration and heightened electrical hazards, especially when an improper wire connector is used.

Safe Alternatives to Extension Cord Overuse

Instead of relying heavily on extension cords, consider using safe alternatives such as power strips, additional outlets, portable cords, multi-line extension cords, and flat tape cords.

Also, unplugging devices when they’re not in use can prevent overload and reduce the risk of fire hazards.

DIY Repairs Leading to Poor Connections

While it may be tempting to tackle electrical repairs yourself, DIY repairs can lead to poor connections, which can result in electrical hazards and cause damage to appliances. Typical mistakes that lead to poor electrical connections during DIY repairs include cutting wires too short, incorrect wire connections, and improper wire installation.

Spotting Loose Connection Signs

To prevent potential hazards, it’s important to spot signs of loose connections. Some signs to look out for include buzzing sounds, flickering lights, intermittent power fluctuations, and burning smells. Loose electrical connections can be due to improper installation, thermal expansion and contraction, vibration and movement, inadequate wiring, and wear and tear.

Seeking Professional Help

Seeking professional help is always a safer and more efficient alternative to fixing electrical issues yourself, despite the temptation. Professional electricians have the necessary qualifications and experience to ensure safety and proper connections. They can address misaligned connections by:

  • Identifying and examining the wiring
  • Tightening or replacing faulty connections
  • Ensuring appropriate insulation
  • Conducting inspections for frayed wiring
  • Implementing essential measures for safety and effectiveness.

Incorrect Light Bulb Wattage

Moving on to lighting, using incorrect light bulb wattage is a common mistake that can lead to premature bulb burnout and potential hazards, such as electrical fires and damage to the light fixture. It’s important to check the maximum wattage rating of a light fixture before installing a light bulb.

Matching Bulbs to Fixtures

For efficient and safe lighting, it’s important to ensure the recommended wattage of bulbs corresponds to the fixtures. Using bulbs that do not match the fixtures can pose several potential hazards, such as overheating, damage to fixtures, and increased safety risks.

The recommended wattage for a light fixture can be determined by examining the labels on the bulb sockets or the maximum wattage ratings printed on the light bulb sockets.

Benefits of LED Bulbs

Using LED light bulbs is an excellent solution for preventing incorrect bulb wattage. These bulbs are significantly more energy-efficient, consuming 75 to 80 percent less energy than incandescent lighting, which can lead to substantial savings. Moreover, they have an extended lifespan – up to 25,000 hours, as opposed to the typical 1,200-hour longevity of incandescent bulbs.

Disregarding the Need for GFCI Protection

Disregarding Ground Fault Circuit Interrupter (GFCI) protection is another common oversight. GFCIs are designed to protect individuals from electric shocks by halting the power to a circuit upon detection of a ground fault. Ignoring the need for GFCI protection can lead to electrical shocks and fires.

Locations Requiring GFCI Outlets

Installing GFCI outlets in areas susceptible to moisture and water exposure is vital. This includes:

  • Bathrooms
  • Garages
  • Kitchens
  • Exterior outlets
  • Crawl spaces
  • Basements

GFCIs work by monitoring the flow of current between the hot wire and the neutral wire.

When any disparity in current is detected, signalling a ground fault, the GFCI promptly interrupts the circuit, halting power supply, and averting potential harm.

Installing and Testing GFCIs

After installing GFCIs, it’s essential to regularly test them to ensure they are functioning properly and providing protection. A malfunctioning GFCI could be indicated by:

  • The inability to reset
  • No pop out of the reset button after pressing ‘test’
  • Frequent or random tripping without apparent cause
  • Discoloured or melted plastic around the outlet
  • A non-functioning outlet even with the reset button out

Failing to Label Electrical Panels

Failing to label their electrical panels is another mistake often made by homeowners. Labelling electrical panels facilitates troubleshooting and maintenance, ensuring easy and safe identification of circuits. Failure to do so can impede the identification and isolation of circuits, potentially causing delays in emergency response.

Organising Your Panel

Assigning numbers to the breakers and mapping the circuits is involved in organising your electrical panel. It’s advisable to use durable labels, such as vinyl or polyester, and provide specific descriptions for circuits, such as ‘Southwest bedroom’, for clarity.

Regular review and update of these labels is crucial to ensure their accuracy and relevance.

Updating Labels After Changes

Updating the labels on your electrical panel is necessary after making changes to your electrical system. This includes updating labels after:

  • renovation projects
  • equipment installation
  • modifications
  • upgrades

Adhering to regulations and standards such as OSHA 1910.145(e)(2), CSA, and the National Electrical Code ensures safety and compliance, and facilitates easy identification of circuits and equipment.


Not Heeding Warning Signs of Electrical Issues

Finally, heeding warning signs of electrical issues is essential. Common signs such as malfunctioning light switches, overloaded circuits, and frequent electrical surges can help you identify potential electrical problems in your home. Ignoring these signs can lead to substantial damage to your household devices.

Recognising Early Symptoms

To prevent potential hazards, it’s crucial to recognize early symptoms of electrical problems. Some symptoms to look out for include warm outlets, frequent tripping of your circuit breaker, and a buzzing noise from your outlets or switches.

Taking Action on Electrical Warnings

Taking action is important once these warning signs have been recognized. This includes seeking professional help and addressing these issues promptly. Ignoring electrical warnings can lead to accidents, injuries, and potential damage.

Seeking help from a professional electrician for electrical repairs is always a safer and more efficient approach.


In conclusion, while electricity is an indispensable part of our lives, it’s crucial to understand the potential hazards associated with improper handling and maintenance.

By avoiding common mistakes you can ensure a safer and more efficient home.

And if you spot any of these issues or any other electrical problems in your home in Inner West Sydney – don’t wait, give us a call at Mr Sparky. Our electrical services are available 24/7 in Inner West Sydney and throughout the city.

Call us on 1300 770 771 or book here.

Frequently Asked Questions

What are the 4 faulty electrical wiring warning signs?

If you notice strange colours, scorching, or evidence of burning at outlet points, this could indicate faulty electrical wiring. Additionally, if the fuse keeps blowing or the breaker keeps tripping on a circuit, it’s a sign that something isn’t right.

Can an electrician find faulty wiring?

Yes, electricians can find faulty wiring by checking for signs of fraying, damage, exposed wires, and cracking in the insulation during their inspection.

How do I find an electrical fault in my house?

To find an electrical fault in your house, follow these 7 steps: turn all circuit breakers off, turn the main safety switch on, turn each circuit breaker back on, identify the faulty circuit, turn all switches off again, turn the electricity back on, and if needed, call a fault finding electrician.

What are the common mistakes homeowners make that can lead to electrical hazards?

It’s important to avoid overlooking grounding, failing to label electrical panels, misjudging circuit load capacity, ignoring electrical surges, neglecting insulation around wiring, using extension cords inappropriately, attempting DIY repairs leading to poor connections, and ignoring warning signs of electrical issues. Neglecting these can lead to electrical hazards.

How can I prevent electrical fires in my home?

To prevent electrical fires in your home, make sure to follow safety measures such as proper grounding, avoiding circuit overloading, using surge protectors, and seeking professional help for electrical repairs. Take these precautions to keep your home safe.


Meet Steven, owner of Mr Sparky and seasoned professional electrician in Sydney. With more than 15 years of experience in taking care of the electrical needs of Sydney’s residents, Steven loves to share his expertise and knowledge to ensure everyone is electrical safe. Need an electrician in Sydney – give Mr Sparky a call


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