无严重影响触头盒绝缘的气体、蒸汽、灰尘及其它爆炸性和腐蚀介质的场所。
NO gas , wapor or dust that may severely affect the insulation of contact box, no explosive or corrosive substance.
其安装场所无严重影响变压器绝缘的气体蒸汽、化学沉积、灰尘、灰垢及其他爆炸和腐蚀性介质。
Working environnment should be without gas, steam, chemical deposition, dust or dirt that will affect transformer's insulation seriously, also explosive or corrosive medium is not allowed.
应用：适用于输变电网中各类以SF 6气体为绝缘介质的高压、中压电器设备中气体压力的监测。
Application: monitoring the gas pressure of all kinds of high voltage and medium voltage electrical equipment which use SF6 gas as insulation in transmission network.
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