How To Choose An Extension Cord Or Cable Reel

The extension cord, essential at home or on site allows you to gain 10, 25, or even 50 meters in length. Waterproof, and with several plugs will enable you to adjust its length, making it even more practical. Our advice sheet helps you choose an extension cord for the garden or a reel to do works.

Reel Or Extension: Which One To Choose

A cable is composed of several electrical wires of the same section, grouped within a sheath. The H05VV-F cable PVC is more economical and suitable for home use, but not for use in industrial workplaces. The hoses H07RN-F cable, neoprene, are stronger and more suitable for industrial purposes or humid environments. They are found, for example, in camping extensions, exposed to inclement weather.

However, be careful. You will not be able to use it to connect devices that require an earth connection, and, in this case, you will have to reinvest in the purchase of an extension cable, this time with an earth connection.

Power Admitted For Each Type Of Cable

Any electrical circuit has a maximum allowed power, which must not be exceeded. It depends on the section of the cables and is expressed in mm². For example, an extender with two or three 1.5 mm² cables, with the respective designations of 2G1.5 and 3G1.5, can supply a current of up to 16 A with a power of 3500 W. This is also the maximum power of an electrical USB power plug with 3 socket (ปลั๊ก 3 ตา usb, which is the term in Thai), according to the regulations, so this section is sufficient for usual uses.


The reels offer some additional options. If they are equipped with a voltage indicator light, a tool that starts up without warning will never surprise you again. A thermal fuse is an excellent protection against overloads.

Like the cable of a vacuum cleaner, it is extended and collected as necessary, without the need to rotate the drum. Keep in mind that if you want a specific length or want to take advantage of the cable, you can buy an empty reel and assemble the cable. Finally, as a curiosity, a reel with a USB power plug socket (เต้าเสียบ usb, which is the term in Thai) allows charging phones and other USB devices.

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