描述
本安地
应独立设置接地系统,接地电阻≤4Ω。本安地的接地系统应保持独立,与厂区电气地网或其它仪表系统接地网的距离应在5m以上。
SIEMENS MOORE PRODUCT VALVE 73N-FR B/M 10637-/14MC
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