描述
用电仪表的外壳、仪表盘、柜、箱、盒和电缆槽、保护管、支架、底座等正常不带电的金属部分,由于绝缘破坏而有可能带危险电压者,均应做保护接地。对于供电电压不高于36V的就地仪表、开关等,当设计文件无特殊要求时,可不做保护接地。
FIREYE 4-314 NSFP 4314
Fireye 72DUVS4 D-Series amp. UV Self Check
FIREYE 70D40 SOLID STATE FLAME SAFEGUARD BURNER
FIREYE M SERIES TIMING CARD MT 60-10 7724
FIREYE M SERIES TIMING CARD MT 60-10 8012
FIREYE M SERIES TIMING CARD MT 60-10 7721