Ceramic Insulator Tubes are used in vacuum interrupters for medium voltage switch gears (approx. 6kV to 80kV). It is a specialized Alumina material with high insulation resistance, good mechanical strength, and so on.
The Mo-Mn metallization with nickel plating allows customers to assemble hermetically sealed products and In-house electrode brazing capability.
Our factory has dedicated production lines, capable of high quality and mass production.
Any specific requirements, pls feel free to contact us.
Material Properties:
PROPERTY | UNITS | 95%Al2O3 | 99%Al2O3 |
Dielectric Strength | kv/mm | 18 | 20 |
Dielectric Loss | 25°C @ 1MHz | 0.0004 | 0.0002 |
Volume Resistivity | 25°C ohm-cm | >1014 | >1014 |
Bulk Density | G/cm3 | 3.8 | 3.9 |
Thermal Conductivity | W/mk | 24 | 28 |
Applications:
- Vacuum interrupters of switchgear, medium voltage range (approx. 6KV to 80KV)
- Vacuum switch
- Vacuum relay