Lisäjohtimia

Lisäjohtimia, often translated as "additional conductors" or "auxiliary conductors" in English, refers to any conductors in an electrical system that are not part of the primary circuit intended for power transmission or signal carrying. These conductors serve various supplementary functions within electrical installations and equipment.

One common application of lisäjohtimia is in protective earthing or grounding systems. In these cases, additional conductors are used to connect metallic parts of electrical equipment that are not normally live to the earth, providing a safety path for fault currents. This helps to prevent electric shock by ensuring that exposed conductive parts do not become dangerously energized during a fault.

Another role for lisäjohtimia is in the wiring of control circuits or signaling systems. These conductors might be used to transmit operational commands, status indicators, or feedback signals between different components of a larger electrical system. They are separate from the main power conductors to maintain the integrity and reliability of the control functions.

Furthermore, lisäjohtimia can be found in specific applications such as in the construction of cables themselves, where they might be used for electromagnetic screening or as part of a more complex cable design to facilitate specific functionalities. Their presence is dictated by safety regulations, operational requirements, and the overall design of the electrical installation. The identification and correct use of lisäjohtimia are crucial for the safe and effective operation of any electrical system.