Sisäjohtimet

Sisäjohtimet, often translated as internal conductors or internal wiring, refers to the electrical conductors installed within the walls, ceilings, or floors of a building or structure. These are distinct from external or overhead power lines. Their primary purpose is to safely and efficiently distribute electricity from the main power source to various outlets, fixtures, and appliances within a building.

The installation of sisäjohtimet is governed by strict electrical codes and regulations to ensure safety and prevent hazards such as fires and electric shocks. These codes dictate the types of conductors that can be used, their insulation requirements, the methods of installation, and the protective measures that must be employed. Common materials for sisäjohtimet include copper, which is highly conductive and durable, and aluminum, which is lighter and often more cost-effective, though it requires specific installation techniques.

Sisäjohtimet are typically housed within protective conduits or sheathing to shield them from physical damage and to contain any potential electrical faults. They are routed through dedicated pathways within the building’s construction, connecting to junction boxes, circuit breakers, and the electrical panel. The design and layout of sisäjohtimet are critical for ensuring adequate power supply to all intended points of use while also allowing for future modifications or expansions of the electrical system. Proper identification and labeling of these conductors are also important for maintenance and troubleshooting.