Metallikantoiset

Metallikantoiset, commonly known as metal-clad or metal-sheathed cables, are electrical cables designed with a protective metal layer around their insulation. This metal sheathing serves primarily to shield the internal conductors from physical damage, moisture, and electromagnetic interference. The term "metallikantoiset" is used in Finnish to describe such cables, reflecting their reinforced construction.

The metal sheathing is typically made from materials like aluminum, copper, or steel, depending on the application and required protection level. These cables are widely used in industrial, commercial, and residential settings where durability and reliability are critical. Common applications include underground power distribution, telecommunications, and harsh-environment installations where exposure to moisture, chemicals, or mechanical stress is a concern.

Metallikantoiset cables offer several advantages. The metal layer enhances mechanical strength, reducing the risk of damage from external forces. It also provides electrical shielding, preventing signal interference in communication cables and protecting against electromagnetic induction in power cables. Additionally, the metal sheathing can improve fire resistance, making these cables suitable for high-risk areas.

Installation of metallikantoiset cables often requires specialized techniques, such as proper grounding of the metal sheath to ensure safety and functionality. The cables must be handled carefully to avoid puncturing or damaging the protective layer. Proper termination and connection methods are essential to maintain the integrity of the shielding and insulation.

In summary, metallikantoiset cables are a robust solution for demanding electrical and communication applications, offering protection against environmental factors and mechanical stress while ensuring reliable performance. Their use is particularly common in infrastructure projects where long-term durability and safety are priorities.