hat
Vacuum Chanjman Vacuite tèsteur / Vacuum Degre Tès tèsteur mwen Entwodiksyon nan JB8738-1998 "vakyòm entriksyon chanm arc nan 3.6-40.5KV AC switchaj vòltaj segondè" ki te etabli pa segondè-vòltaj switchgear National Standardization teknik Komite, li preskri ki gaz...
eng
Vacuum Switch Vacuity Tester/Vacuum Pressure Degree Tester I Introduction In JB8738-1998 《 vacuum interrupter arc chamber of 3.6-40.5KV AC high voltage switchgear 》 established by high-voltage switchgear National Standardization Technical Committee, it is prescribed that the...