Clear labelling for safer electrical installations
L1, L2 and L3 symbols are used in electrical labelling to designate the three phases of a three-phase system. They help to identify and distinguish the phase conductors in electrical installations, ensuring correct connection, maintenance and safe operation of the installation.
In general, electrical labelling symbols are an important part of electrical safety and make it easier to work with electrical installations. They clearly indicate which cable, wire or component is what, making installation, troubleshooting and maintenance easier. Clear labelling makes work safer, reduces the risk of misconnections and makes the entire electrical system more organised and easier to understand.
- Clarity: Makes it easy to see which cable, wire or component is what.
- Security: Reduces the risk of misconnections and accidents.
- Effectiveness: Facilitates installation, troubleshooting and maintenance.
- Organisation: Creates a structured and easy-to-understand electricity system.
- Standardisation: Ensures that everyone can understand the labelling in the same way.






