Cable Reels

Different Types of Cable Reels: Choosing the Right Functionality

Depending on the job and the environment, there are various types of cable reels available. Each type has specific properties that make it suitable for a particular situation.

Cable Reels for Indoor and Outdoor Use

• Indoor Cable Reels: These cable reels are usually equipped with a PVC cable (H05VV-F) and are suitable for use in dry spaces, such as homes, offices, or hobby rooms. They offer enough flexibility and sockets for everyday devices.

• Outdoor Cable Reels: For outdoor jobs, or in damp or dusty environments, cable reels with a higher protection rating (IP value) are required. These often feature a more robust rubber or neoprene cable (H07RN-F or H07BQ-F) that resists moisture, oil, chemicals, and UV radiation. The sockets are usually fitted with self-closing covers for added protection.

  See our outdoor lighting page for more information on IP ratings.

  

Manual and Automatic Cable Reels

• Manual Cable Reels: With this type, you wind and unwind the cable by hand. They are simple to use and widely available in various lengths with different numbers of sockets.

• Automatic Retractable Cable Reels: These reels have a spring mechanism that automatically winds up the cable with a gentle pull. This system, similar to that of a vacuum cleaner, makes storage especially easy. Many automatic reels can also be mounted on the wall or ceiling, helping to keep your workspace tidy.

Heavy-Duty Cable Reels

For heavy electrical equipment, such as those often used on construction sites or in industry, special heavy-duty cable reels are needed. These can be identified by the CEE plug with three or five pins and are designed to handle higher voltages (400V) and currents.

Safety When Using Cable Reels

Working safely with cable reels is vital to prevent overheating, short circuits, and fire. Here are some important points to keep in mind:

Fully Unwind the Cable

A common question is why a cable reel must be fully unwound. When the reel is left wound during use, the heat generated by the electricity cannot escape properly. This can cause the cable to overheat and, at worst, result in a short circuit or fire. By fully unwinding, the heat is efficiently dissipated, allowing the reel to operate safely and at full capacity. The maximum load (in watts) differs significantly between wound and unwound states.

Thermal Cut-Out on a Cable Reel

Many cable reels are equipped with a thermal protection switch, often recognizable by a red button on the socket plate. This protection activates in case of overload or overheating and automatically cuts off the power, preventing damage to the reel and connected equipment. If activated, unplug the reel, fully unwind the cable, and allow it to cool down. Once cooled, press the reset button to use the reel again.

Choosing the Right Cable Thickness

The thickness of the cable cores is crucial for safe operation, especially with high-power devices. A cable that is too thin can overheat. The core cross-section, expressed in mm², must match the total current you expect to use.

You can calculate the power in Watts as Voltage (Volt) x Current (Ampere). Always check that the total power of connected devices does not exceed the maximum rating of the reel, whether wound or unwound.

General Safety Tips

• Never connect multiple reels or extension cords in series.
• Do not leave reels and extension cords permanently on walkways or driveways to prevent tripping and damage.
• Regularly check cables and sockets for damage.
• Dispose of damaged materials immediately.
• Ensure sockets face downwards to prevent accumulation of dust or dirt.

Service Life and Maintenance of Cable Reels

With proper use and maintenance, a cable reel can last for many years. Choose quality brands known for their durability and safety. Materials such as impact-resistant plastic and high-grade rubber or neoprene cables contribute to a longer lifespan.

Many professionals appreciate reels that are easy to wind and unwind, with robust housings and the necessary safety features. By following these guidelines, you’ll select and use a cable reel that matches your work and ensures safe power supply at any location.

[Reference: Link to a blog article on maintaining electrical tools. Text: "Tips for maintaining your electric tools"]