FREE 24-48 Hours Delivery On All Orders // *** ORDER HOTLINE 0207 846 0039 ***Shop Now!

Extension Lead FAQs

Extension Lead FAQs

This is our comprehensive guide for Extension Lead FAQs! Whether you’re setting up a home office, planning a DIY project, or simply need more power outlets, extension leads are a convenient solution for connecting multiple devices. However, with so many types of extension leads available, it can be difficult to know which one is best for your needs. That’s why we’ve put together this guide to answer some of the extension lead FAQs. From choosing the right type of extension lead to understanding safety guidelines, we’ll cover everything you need to know to use extension leads safely and effectively. Let’s get started

What is an extension lead?

They are a cable with a plug on one end and multiple sockets on the other end. It allows you to plug multiple electrical devices into a single wall socket, giving you extra outlets for your appliances and electronics. Some come with surge protection to prevent damage from power surges, while others have extra features like USB ports for charging devices.

How does an extension cord work?

When you plug them into a wall socket, it effectively extends the number of available outlets for you to use. You can then plug multiple devices into the outlets. It then passes the electrical current from the wall socket to the devices, allowing them to function as normal.

How do I know if a socket is overloaded?

A socket is considered overloaded if too many devices are plugged into it, drawing more current than the socket can safely handle. Signs of an overloaded socket include flickering lights, buzzing or crackling sounds, and the socket feeling warm to the touch. If you suspect that a socket is overloaded, unplug some of the devices and avoid using the socket until you can have it inspected by a licensed electrician.

Shop Brennenstuhl Surge Protection Extension Leads

  • , , ,

    Brennenstuhl 6 Gang Extension Lead with Surge Protection to 60,000A and USB Charging Ports – 1951163604

    • Surge Protection up to 60,000A: Shields devices from power surges and lightning strikes.
    • 6-Gang Extension Lead: Includes 2 USB charging ports for added convenience.
    • 3-Metre Heavy-Duty Cable: Designed for durability and to prevent overheating.
    • Wall-Mountable Design: Allows for neat cable storage and easy access.
    • 5-Year Guarantee: Ensures long-lasting reliability and peace of mind.
    Original price was: £78.95.Current price is: £62.22.
  • , ,

    Brennenstuhl hugo! 8 Gang Extension Lead With Surge Protection – 3 Metre Cable – Black – 1150613318

    • Surge Protection: Safeguards against mains power surges and indirect lightning strikes up to 19,500A.
    • 3 Metre Cable: Includes a 3 metre mains power cable with UK plug for convenient reach and flexibility.
    • Robust Material: Made from highly break-proof polished polycarbonate for durability, ensuring long-lasting performance.
    • Widely Spaced Sockets: Sockets positioned at a 90° angle for convenient use, accommodating multiple plugs easily.
    • Illuminated Switch: Features an easy-to-use On/Off switch for visibility, allowing you to see its status at a glance.
    Original price was: £34.95.Current price is: £30.28.
  • , , ,

    Brennenstuhl 4 Gang Extension Lead With Surge Protection – 2 Metre Cable – Ruby Red – 1150613374

    • Surge Protection up to 19,500A: Shields devices from power surges and lightning strikes.
    • 4-Gang Extension Lead: Powers multiple devices with ease.
    • 2-Metre Mains Cable: Offers flexible placement options.
    • Illuminated On/Off Switch: Clear, easy-to-use power control.
    • Durable Polycarbonate Construction: Break-resistant and built to last.
    Original price was: £23.95.Current price is: £18.62.
  • , ,

    Brennenstuhl 8 Gang Extension Lead with Surge Protection to 60,000A – 1256053678

    • 8-Gang Extension Lead: Provides surge protection up to 60,000A.
    • 3-Metre Cable: Offers flexibility for various setups.
    • Surge Protection Indicator: Confirms active surge protection.
    • Illuminated On/Off Switch: Enhances visibility for power control.
    • Wall-Mountable Design: Includes cable storage for neat organisation.
    • Product Code: 1256053678.
    Original price was: £64.95.Current price is: £58.32.

What is surge protection in an extension lead?

Surge protection is a feature that helps to protect your electrical devices from power surges. Power surges can occur when there is a sudden spike in the electrical current, which can cause damage to your devices. Extension leads with surge protection have a circuit breaker that automatically switches off the power in the event of a surge, helping to protect your devices.

Can you plug an extension lead into an extension lead?

It is not recommended to plug one into another, as this increases the risk of overloading the circuit and creating a fire hazard. If you need more outlets, it’s best to use a single extension lead with enough sockets to meet your needs or use multiple in separate parts of your home or workplace.

How do I choose the right Extension Lead for my Home?

When selecting an extension lead for your home, it’s vital to make informed choices for safety and optimal performance. Here are key factors to consider:

Amperage (Amps): Ensure the extension lead can handle the electrical load of your devices by choosing the appropriate amperage.

Voltage: Select a product with the correct voltage rating to safeguard your devices.

Cable Length: Consider the distance to your devices and choose a cable length that meets your needs.

Number of Outlets/Sockets: Depending on your devices, choose a lead with the right number of outlets.

Safety Features: Prioritise safety by opting for extension leads with surge protection, overload protection, and other safety features.

Choosing the right extension lead is crucial for device safety and home protection. Prioritise these factors to ensure your extension lead meets your needs and exceeds expectations.

Can I use a power extender outside?

Most are not designed for use outside. If you need to use electrical devices outside, it is best to use an outdoor extension lead specifically designed for outdoor use. These are weatherproof and can be safely used in wet or damp conditions.

Shop Brennenstuhl Cable Reels

  • ,

    Brennenstuhl Automatic Cable Reel – Automatic Retractable Cable Reel – 9 Metre Cable – 240V – 1241023300

    • 50 Metre Cable: 1.5mm2 thickness to reduce overheating and overload risks.
    • Thermal Cut-Out Protection: Offers safety against overheating and overloading.
    • Anti-Twist Cable System: Keeps plug sockets stationary during winding and unwinding.
    • Ergonomic Handle: Facilitates easy carrying for both right and left-handed users.
    • Standard UK Plug: Features UK plug and sockets (240V/13A).
    • Product Code: 1208863.
    Original price was: £79.95.Current price is: £54.76.
  • , , ,

    Brennenstuhl Automatic Cable Reel 110v 16A – 9 Metre Cable – Electrical Retractable Cable – Heavy Duty – 1241013110

    • Automatic Cable Reel: 110V, 16A reel designed for reliable power distribution, ensuring safe and efficient operation.
    • 9m Heavy-Duty Cable: Oil-resistant rubber-neoprene cable, with an additional 2m lead for extended reach, minimizing the risk of wear and tear.
    • Versatile Mounting: Wall or ceiling mountable with a fitted bracket, offering flexible installation options to fit your space.
    • Thermal Cut-Out Protection: Prevents overheating by cutting off power when the temperature gets too high, ensuring safety and reliability.
    • Flexible Pivot Design: Pivots up to 180° for convenient cable use and storage, making it easier to manage and extend the cable as needed.
    • Weather-Resistant Construction: Durable and built to withstand harsh outdoor conditions, ideal for use in gardens, construction sites, and more.
    Original price was: £129.95.Current price is: £86.28.
  • , ,

    Brennenstuhl Camping Cable Reel Heavy Duty 2.5mm Thick Cable – 25 Metre Cable Length – 1182470100

    • 25m Bright Orange Cable: Highly visible, perfect for outdoor use in camping, caravanning, and construction environments for easy identification.
    • Heavy Duty 2.5mm² Cable: Designed to handle high power loads, ensuring safe and reliable performance with minimal risk of overheating.
    • Durable Construction: Made from break-resistant polycarbonate and mounted on galvanised steel, providing exceptional durability in tough environments.
    • Safe Outdoor Use: Features a CEE angle coupling, earth contact combination socket, and CEE plug for secure and reliable outdoor power distribution.
    • Easy Handling: Equipped with Brennenstuhl’s innovative cable pilot handle, making winding and unwinding effortless for convenient setup and storage.
    Original price was: £118.95.Current price is: £96.72.
  • , ,

    Brennenstuhl Automatic Cable Reel 110v 16A – 16 Metre Cable – Electrical Retractable Cable – Heavy Duty – 1241003110

    • 18 Metre Cable: Includes 16m heavy-duty 1.5mm2 cable and 2m additional cable for outdoor use.
    • 180° Pivoting Design: Easily mounts on walls or ceilings with fitted brackets.
    • Overheating Protection: Equipped with a light indicator for added safety.
    • Oil-Resistant Material: Heavy-duty extension cable made from durable rubber-neoprene.
    • High-Quality Engineering: Designed in Germany for reliability. Product code: 1241003110.
    Original price was: £124.95.Current price is: £94.20.

Can you put a washing machine on a power strip?

It is not recommended to run a washing machine on an extension lead as it requires a significant amount of power to operate. Using one for a washing machine could result in an overloaded socket and pose a safety risk. It is best to have a dedicated outlet installed for your washing machine by a licensed electrician.

Is it safe to plug a fridge into an extension lead?

It is not recommended to plug a fridge into an extension lead as fridges also require a large amount of power to operate. Using a power strip for a fridge could result in an overloaded socket and pose a safety risk. It is best to have a dedicated outlet installed for your fridge by a licensed electrician.

Can you run a fridge off an extension lead?

It is not recommended to run a fridge off an extension lead. As mentioned above, fridges require a large amount of power to operate, and using an extension cord could result in an overloaded socket and pose a safety risk.

Can you plug kitchen appliances into extension cords?

Yes, kitchen appliances can be plugged into extension cords, but it’s important to make sure the socket is not overloaded. If you need to use an extension lead for your kitchen appliances, it’s best to use one with surge protection and limit the number of appliances you have plugged in at any given time.

How long can you run an extension lead?

There is no set length of time for running an extension lead, as this will depend on the power requirements of the devices you have plugged in and the capacity of the extension lead. However, it is not recommended to use a power extender for an extended period of time, as this could result in an overloaded socket and pose a safety risk.

Does leaving an extension cord plugged in waste electricity?

No, leaving an extension lead cord plugged in does not waste electricity. However, if the devices that are plugged into the extension lead are left on standby or charging, they will continue to consume a small amount of power even when they are not in use.

Can you run an extension lead through a wall?

It is not recommended to run a power strip through a wall as this could pose a safety risk. If you need to extend the reach of an outlet, it is best to have a licensed electrician install an outlet in the desired location.

When should you not use an extension cord?

You should not use an extension cord:

  • If the socket is already overloaded
  • If the extension cord is frayed or damaged
  • If the extension cord is not intended for outdoor use and you are using it outside
  • If the extension cord is not rated for the power requirements of the devices you want to plug in
  • If the extension cord is not properly grounded

How do I know if an extension lead is safe?

You can determine if an extension lead is safe by checking its rating label, which will indicate its maximum current capacity and whether it has been certified for safe use. You can also inspect the extension lead for any signs of damage, such as fraying, exposed wires, or melted insulation, which could indicate that it is unsafe to use.

How many plugs are too many?

The number of plugs that are too many will depend on the current capacity of the socket and the extension lead being used. As a general rule, it’s best to limit the number of devices you have plugged into a single socket and to avoid overloading the socket by using an extension lead that is rated for the power requirements of the devices you want to plug in.

Can you plug an extension lead into a multi-plug?

Yes, it is generally safe to plug an extension lead into a multi-plug or power strip. However, safety should always be a top priority. Ensure that the combined load of devices connected to the extension lead and the multi-plug doesn’t exceed the capacity of the power strip. Overloading can lead to overheating and potential hazards. Regularly inspect all components for wear and damage to maintain safety. If used correctly and within their specified limits, extension leads, and power strips can be a convenient and safe solution to extend your electrical outlets.

What happens if an extension lead gets wet while plugged in?

If an extension lead gets wet while plugged in, there is a risk of electrical shock and potential damage to the extension lead and the devices that are plugged into it. It is important to immediately unplug the extension lead and allow it to dry completely before using it again. If the extension lead has been damaged, it should not be used and should be replaced.

What is the safest extension cord?

The safest extension cord is one that is properly rated for the power requirements of the devices you want to plug in, is in good condition, and is used in accordance with the manufacturer’s instructions. Extension cords with surge protection and ground fault circuit interrupters (GFCIs) are also considered safer than standard extension cords.

How many extension leads are safe to use?

The number of extension leads that is safe will depend on the power requirements of the devices you have plugged in and the capacity of the extension leads being used. As a general rule, it is best to avoid using more than one extension lead at a time and to limit the number of devices you have plugged into a single socket to prevent overloading.

Do extension leads use electricity when not in use?

Extension leads themselves do not consume electricity when they are not in use. They are essentially passive devices that provide a means to distribute electricity from a power source to multiple devices.

However, some power strips or extension leads come with features like surge protection, which may have a small standby power consumption for their internal circuitry. This power usage is typically minimal and is meant to power indicator lights or surge protection components. It’s often referred to as “phantom” or “vampire” power consumption.

How do I Safely Use Extension Leads and Cable Reels in my Home or Office?

Extension leads and cable reels are incredibly useful tools that help us connect multiple electronic devices to a single power source. However, if not used properly, they can also pose serious safety risks. Here are some tips to help you use extension leads and cable reels safely in your home or office:

Shop Extension Leads

  • , ,

    Brennenstuhl Primera-Line Surge Protected Adapter Plug Socket – 1506953

    • Surge Protected Adapter: Safeguards devices against mains power surges and indirect lightning strikes up to 13,500 Amps, ensuring reliable protection.
    • Protects Sensitive Equipment: Ideal for computers, TVs, audio systems, and other electronics, preventing damage from power fluctuations.
    • Easy to Use: Simply plug into your mains socket and connect your device for instant surge protection.
    • Practical Design: Compact and convenient, perfect for home or office use without taking up excess space.
    • Product Code: 1506953.
    Original price was: £14.98.Current price is: £11.92.
  • ,

    Brennenstuhl 4 Gang Extension Lead in Black – 1.8 Metre Cable – Made in Germany – UK Plug & Sockets – 1951143100

    • 1.8-Metre Cable: Convenient length for versatile use.
    • Break-Resistant Polycarbonate Body: Strong and durable construction.
    • Wall Mountable: Space-saving design with easy installation.
    • Integrated Cable Storage: Excess cable can be neatly wound around the body.
    • Product Code: 1951143100.
    Original price was: £18.95.Current price is: £15.72.
  • , , ,

    Brennenstuhl Automatic Cable Reel 110v 16A – 9 Metre Cable – Electrical Retractable Cable – Heavy Duty – 1241013110

    • Automatic Cable Reel: 110V, 16A reel designed for reliable power distribution, ensuring safe and efficient operation.
    • 9m Heavy-Duty Cable: Oil-resistant rubber-neoprene cable, with an additional 2m lead for extended reach, minimizing the risk of wear and tear.
    • Versatile Mounting: Wall or ceiling mountable with a fitted bracket, offering flexible installation options to fit your space.
    • Thermal Cut-Out Protection: Prevents overheating by cutting off power when the temperature gets too high, ensuring safety and reliability.
    • Flexible Pivot Design: Pivots up to 180° for convenient cable use and storage, making it easier to manage and extend the cable as needed.
    • Weather-Resistant Construction: Durable and built to withstand harsh outdoor conditions, ideal for use in gardens, construction sites, and more.
    Original price was: £129.95.Current price is: £86.28.
  • , , ,

    Brennenstuhl Premium-Duo-ALU-Line 12 Gang Extension Lead – USB Charge Ports – Heavy Duty Cable – Aluminium Body – 1391003900

    • 12-Gang Extension Lead with 2 USB Ports: Charge and power multiple devices at once.
    • Heavy-Duty 3-Metre Cable: 1.5mm² thick for enhanced safety and durability.
    • Safety Fuse Reset Button: Quickly restores power after an overload.
    • Durable Aluminium & Polycarbonate Build: Sturdy matt black design for long-lasting use.
    • 10-Year Guarantee: Reliable performance backed by a decade of assurance.
    Original price was: £74.95.Current price is: £52.26.

1. Check the Electrical Rating

Before using an extension lead or cable reel, always check the electrical rating. The electrical rating indicates the amount of power that the lead or reel can handle safely. If you overload the lead or reel with too many devices, it can cause overheating, which can lead to fire hazards. Therefore, make sure that the electrical rating matches the total wattage of the devices you are connecting.

2. Don’t Connect Multiple Extension Leads Together

It can be tempting to connect multiple extension leads together to reach a distant power source. However, this is a dangerous practice that can increase the risk of fire hazards. Instead, use a single extension lead or cable reel that is long enough to reach the power source.

3. Inspect the Lead or Reel Regularly

Inspect the extension lead or cable reel regularly to make sure that it is in good condition. Look for any signs of damage, such as frayed wires, cracks, or exposed conductors. If you find any damage, do not use the lead or reel, and replace it as soon as possible.

4. Don’t Cover Extension Leads or Cable Reels

Covering extension leads or cable reels with carpets, rugs, or furniture can increase the risk of fire hazards. The covering can trap heat and prevent proper ventilation, which can cause the lead or reel to overheat. Therefore, make sure that the leads or reels are placed in a well-ventilated area, away from any obstructions.

Shop Brennenstuhl Extension Leads

  • ,

    Brennenstuhl 4 Gang Extension Lead in Black – 1.8 Metre Cable – Made in Germany – UK Plug & Sockets – 1951143100

    • 1.8-Metre Cable: Convenient length for versatile use.
    • Break-Resistant Polycarbonate Body: Strong and durable construction.
    • Wall Mountable: Space-saving design with easy installation.
    • Integrated Cable Storage: Excess cable can be neatly wound around the body.
    • Product Code: 1951143100.
    Original price was: £18.95.Current price is: £15.72.
  • , , ,

    Brennenstuhl Premium-Duo-ALU-Line 12 Gang Extension Lead – USB Charge Ports – Heavy Duty Cable – Aluminium Body – 1391003900

    • 12-Gang Extension Lead with 2 USB Ports: Charge and power multiple devices at once.
    • Heavy-Duty 3-Metre Cable: 1.5mm² thick for enhanced safety and durability.
    • Safety Fuse Reset Button: Quickly restores power after an overload.
    • Durable Aluminium & Polycarbonate Build: Sturdy matt black design for long-lasting use.
    • 10-Year Guarantee: Reliable performance backed by a decade of assurance.
    Original price was: £74.95.Current price is: £52.26.
  • , ,

    Brennenstuhl Premium-Alu-Line 4 Gang Extension Lead – 3 Metre Cable – Heavy Duty Cable – Fuse Reset Button – 1391003644

    • 4-Gang Extension Lead: Standard UK plug and sockets (240V / 13A) for multiple devices.
    • Heavy-Duty 3-Metre Cable: 1.5mm² thick cable enhances safety by reducing overheating and overloading risks.
    • Safety Fuse Reset Button: Easily restores power without replacing the fuse.
    • Durable Aluminium & Polycarbonate Build: Sturdy, break-resistant design backed by a 10-year guarantee.
    • Wall-Mountable Design: Neatly store excess cable by winding it around the body.
    Original price was: £29.48.Current price is: £24.38.
  • Brennenstuhl Extension Lead 6 Gang Extension Lead Ceiling Mounted Power Cable – 1151763

    • Thermal Cut-Out Protection: Prevents overheating and overloading, ensuring safe and reliable operation.
    • 5-Metre Heavy-Duty Cable: Includes a 1.5mm2 thick cable for extended reach while reducing overheating and overload risks.
    • 6 Gang Extension Lead: Provides six sockets to power multiple devices simultaneously.
    • Flexible Mounting: Comes with a 3-metre galvanised steel hanging chain for secure and convenient ceiling installation.
    • Standard UK Plug: Fully compatible with UK sockets (240V/13A) for seamless power connectivity and ease of use.
    • 3-Year Guarantee: Designed for durability and backed by a manufacturer’s guarantee for long-term reliability. Product code: 1151763.
    Original price was: £49.95.Current price is: £32.02.

5. Unplug the Devices When Not in Use

When not in use, make sure to unplug all devices from the extension lead or cable reel. Leaving the devices plugged in can cause the lead or reel to overheat, which can lead to fire hazards.

In conclusion, extension leads and cable reels are useful tools that make it easy to connect multiple electronic devices to a single power source. However, it is important to use them safely to avoid any safety risks. By following these tips, you can ensure that you use extension leads and cable reels safely in your home or office.

We hope that these extension-lead FAQs have helped you understand the basics of powerstrips and answered some of the most common questions about them. Extension leads can be incredibly useful tools, but it’s important to use them safely and properly to avoid potential hazards. Always be sure to choose the right type of extension lead for your needs, keep it in good condition, and follow safety guidelines when using it. By following these simple tips, you can make the most out of your extension leads and stay connected with ease. If you have any further questions or concerns, don’t hesitate to consult with a qualified electrician or contact the manufacturer for additional guidance. Thank you for reading our Extension Lead FAQs guide!

Share this post


has been added to your Basket.
Secure Checkout
Open chat
Hello 👋
How can we help you?