How to safely use extension cords and power strips

Extension cords and power strips are exceptionally convenient for providing additional outlets and extending the reach of your electrical devices. However, improper use can lead to significant safety hazards, including electrical fires and shocks. Understanding how to use these tools safely is essential for protecting your home and family.

This guide will provide comprehensive safety tips to help you use extension cords and power strips correctly and effectively. So, continue reading to learn more about how to safely use extension cords and power strips.

Choosing the right extension cord and power strip

Selecting the appropriate extension cords and power strips for your needs is the first step in ensuring safety.

Understanding capacity and load

• Ampacity Ratings: Every extension cord and power strip has a maximum capacity, known as its ampacity. Choosing cords and strips that match or exceed the total power requirements of the devices you plan to connect is crucial. Overloading can usher in overheating and potential fire hazards.

• Power Strip Capacity: Ensure the power strip can handle the merged wattage of all connected devices. Each outlet on a power strip shares the total capacity, so it's essential to avoid overloading any single strip.

Quality and certification

• Certified Products: Always select UL-listed extension cords and power strips or certified by a recognised safety organisation. These certifications ensure the products meet rigorous safety standards.

• Avoiding Cheap Alternatives: Low-quality, uncertified products might save money upfront but can pose significant risks, including poor construction and lack of safety features. Investing in high-quality, certified products is crucial for long-term safety.

Proper usage of extension cords

Using extension cords correctly can prevent accidents and extend their lifespan.

Placement and length considerations

• Avoid Tripping Hazards: Ensure extension cords are placed in a way that minimises the risk of trips and falls. Keep cords away from walkways, and use cord covers if necessary.

• Correct Length: Using an extension cord that is too long can cause voltage drops and overheating. Choose the appropriate length to maintain performance and safety.

Connection and disconnection

• Properly Plugging and Unplugging: Hold the plug before connecting or disconnecting devices rather than pulling on the cord. This prevents damage to the cord and the outlet.

• Avoiding Daisy-chaining: Connecting multiple extension cords, or daisy-chaining, can usher overheating and increase fire risk. Use a single, appropriately rated cord instead.

Safe use of power strips

Power strips can provide multiple outlets but must be used carefully to avoid hazards.

Overloading prevention

• Distributing Load: Evenly distribute devices across multiple outlets to avoid overloading a single outlet. High-wattage devices, such as space heaters and microwaves, should not be plugged into power strips.

• High-wattage Devices: These appliances should be plugged directly into wall outlets to prevent overheating and potential fire hazards associated with power strips.

Placement and environmental factors

• Ventilation: Ensure power strips have adequate ventilation to prevent overheating. Avoid placing them under rugs or behind furniture where airflow is restricted.

• Moisture Avoidance: Keep power strips away from water sources such as sinks, bathtubs, and aquariums. Moisture can lead to electrical shocks and short circuits.

Maintenance and inspection

Regular maintenance and inspection of your extension cords and power strips are crucial for safety.

Regular checks

• Inspecting for Damage: Periodically check cords and strips for signs of wear and tear, such as fraying, cuts, or exposed wires. Damaged equipment should be replaced immediately.

• Replacing Damaged Equipment: Using damaged cords and power strips can lead to electrical hazards. Always replace any items showing signs of damage to ensure continued safety.

Proper storage

• Storing Safely: Store extension cords and power strips in a dry, cool place when not in use. Avoid tightly coiling cords, which can cause internal damage.

• Coiling and Uncoiling: Using a loose, figure-eight pattern prevents kinks and maintains their integrity when coiling cords. Uncoil cords thoroughly before use to avoid overheating.

Recognising and responding to hazards

Understanding warning signs and how to respond to potential hazards can prevent accidents.

Warning signs

• Overheating Indicators: If an extension cord or power strip feels warm to the touch, it may be overloaded. Reduce the load or replace the item to prevent overheating.

• Burn Marks and Odours: Burn marks, melting, or unusual odours are signs of potential hazards. Immediately disconnect the device and replace it.

Emergency actions

• Immediate Disconnection: If you suspect a cord or strip is faulty or overheating, disconnect it immediately. Ensure you handle the plug, not the cord, to avoid further damage.

• Fire Safety: In an electrical fire, use a Class C fire extinguisher to extinguish the flames. Do not use water, which can conduct electricity and worsen the situation. If the fire is uncontrollable, evacuate and call emergency services.

Using surge protectors for sensitive electronics

Surge protectors are essential for safeguarding electronic devices from power surges and spikes.

Benefits of surge protectors

• Protection From Power Surges: Surge protectors help shield your electronics from voltage spikes generated by lightning, power outages, or electrical faults. This protection is paramount for maintaining the longevity and functionality of sensitive devices like computers, televisions, and gaming consoles.

• Preventing Data Loss: Power surges can cause data loss or corruption in computers and other data-sensitive devices. A surge protector helps prevent such issues, ensuring your essential data remains intact.

Choosing the suitable surge protector

• Joule Rating: The joule rating demonstrates how much energy the surge protector can soak before it fails. Higher joule ratings offer better protection, so choose a surge protector with a suitable rating for your devices.

• Clamping Voltage: This rating shows the voltage level at which the surge protection will begin to restrict excess voltage. A lower clamping voltage provides better protection for your electronics.

Special considerations for outdoor use

Outdoor extension cords and power strips require extra precautions to ensure safety and durability.

Weather-resistant cords

• Using Outdoor-rated Cords: Always use extension cords rated for outdoor use when operating devices outside. These cords are developed to withstand exposure to moisture, sunlight, and temperature fluctuations.

• Proper Insulation: Outdoor-rated cords have thicker insulation to protect against environmental elements. Ensure the insulation is intact and free from damage before use.

Safe outdoor placement

• Elevated Placement: Keep outdoor extension cords off the ground to prevent water accumulation and reduce the risk of electrical shocks. Use stakes or hooks to elevate cords when necessary.

• Protection From The Elements: Avoid using power strips outdoors unless they are specifically developed for outdoor use. Protect any connections with weatherproof covers to prevent moisture from entering.

FAQs about extension cord and power strip safety

How many devices can I safely plug into a power strip?  

The number of apparatuses you can plug into a power strip depends on the strip's capacity and the total wattage of the devices. Always ensure the combined wattage does not exceed the strip's rated capacity.

Can I use extension cords for high-wattage appliances? 

High-wattage appliances, such as space heaters, refrigerators, and air conditioners, should not be plugged into extension cables. Instead, they should be plugged directly into wall outlets to stop overheating and potential fire hazards.

What should I do if an extension cord feels warm to the touch?  

If an extension cord feels warm, it may be overloaded or damaged. Disconnect the devices, inspect the cord for damage, and consider replacing it with a higher-capacity cord or using a different outlet.

Ensure electrical safety with professional guidance

Using extension cords and power strips safely is essential to prevent electrical hazards in your home. By following these procedures, you can enjoy the convenience of additional outlets and extended reach while minimising risks.

Regularly inspecting your equipment, recognising warning signs, and responding to potential hazards is crucial for maintaining a safe environment. For comprehensive electrical safety, consult with a professional electrical contractor.

They can assess your home's electrical systems, provide expert advice, and ensure everything is up to code. Prioritise safety and efficiency in your home by seeking professional guidance today.