Guide to Colored Pipes for Exposed Electrical Systems

Guide to Colored Pipes for Exposed Electrical Systems

Did you know that there is a standard that regulates the color of tubes in electrical systems? In fact, beyond the classic black, pipes for electrical systems are made in a variety of colors such as green, lilac, brown, light blue and white. These not only have an aesthetic impact but follow a functional logic to facilitate the recognition and organization of the systems.

Meaning of Tube Colors in Electrical Systems

Black tube

The black tube is intended for the main electrical system. This color indicates that the electrical power cables pass inside the tube. The installation of multiple tubes of this color is recommended to better manage the passage of cables and prevent any problems.

Brown tube

The brown tube is specific for anti-intrusion systems. If you are installing or are planning to install an anti-theft system, remember to opt for tubes of this colour.

Green tube

The green tube is multipurpose: cables for the telephone system, data network and TV signals can be housed inside. The division of cables by type of system into separate tubes (one for each function) is a good practice to adopt.

Blue tube

For intercom and video intercom systems, the blue tube is the recommended choice. This color is reserved exclusively for these applications.

White tube

The white tube can be used for TV and data transmission systems, although it is less common than green in these applications.

Purple Tube

Finally, the purple tube is dedicated to the transmission of the audio signal. This color is recommended for sound diffusion systems or for the passage of HDMI cables.

Advice for Correct Sizing

• Separate electrical cables from other systems: to avoid interference, it is important to keep electrical cables separate from those of other systems.
• Provide additional pipes: leaving one or more pipes empty during installation can be very useful for future needs or changes to the system.

Remember that the choice of color of the tubes is not merely aesthetic but follows very specific rules that define their use based on the type of cable to be passed. This practice not only facilitates maintenance operations but also contributes to safer and tidier systems.