HHB
Key Features & Benefits
Application range, types
Preliminary note
Medium voltage fuses according to British Standard are back-up fuses for the protection of substations up to 24 kV. The fuse-links of this section comply with the following national and
international standards:
- IEC 60282-1
- BS 2692-1
- ESI 12-8
Design and construction of these fuse-links follow the well-proven concept of all SIBA high-voltage fuse-links. For pressure resistant encapsulation, high grade ceramic is used. Contact material consists of silver plated high conductivity copper. The pure silver melting ele- ments have appropriate notches to ensure small time-current curve tolerances and low let-through currents. The arc quenching quartz sand is subject to particular survey criteria regarding its composition, grain size and humidity content.
