RMU24 VCB has a completely sealed system with a stainless steel tank containing all the live parts and switching functions. The covering is TIG welded and filled with sulphur hexafluoride (SF6). It has been designed in order to withstanding internal overpressures and external mechanical loads, without suffering significant distortions. Moreover, it guarantees gas tight. A safety valve prevents potentially dangerous overpressures due to faults inside the enclosure.
In compliance with IEC 60694 standard, it is a «sealed pressurized enclosure», assembled and tested in factory; gas treatments are not necessary during the whole life of the switchgear.
Segregate cable compartments are included into the steel frame. The cable compartments contain external cone bushings to connect the cable terminations to the feeders. Each compartment contains terminals of each single feeder. It is guaranteed the safe compartment access. The compartments can implement (optionally) special interlocks.
Traditional terminations are accepted using proper rubber adaptors («not touchable» on request).
Optionally it is available an internal cone bushings version. Operational equipments are located in frontal position above the cable compartments.