Training 01_Ex_Basics德与盛油气站防雷讲座.pptVIP

Training Ex-Basics 2008 Intrinsically safety Ex (i) in acc. with EN 50 020依据EN 50 020的本质安全型Ex (i) Ex (i) - circuit isolation strength = 500 V AC ? Intrinsically safe equipment (transducer, transformer, sensor, etc.) usually has an insulation strength of = 500 V AC. These equipment is considered as earth free. They must be earthed for safety reasons or for reasons of function. Ex (i) – 线路绝缘强度= 500 V AC ? 本质安全设备（变送器，互感器，传感器等） ，通常绝缘强度= 500 V AC.这些设备被视为不接地的. 出于安全要求或者功能需求它们必须进行接地. Training Ex-Basics 2008 Non Ex-Area非易爆区域 Ex-Area MCR-Circuit Ex(i) 易爆区域MCR-电路 Ex(i) MD / Ex Mu 3 4 1 2 MD / Ex 1 2 3 4 Signal Line Trans- mitter 1) BLITZDUCTOR? CT BLITZDUCTOR? CT Sensor 1) Meshed Earthing System 1) Isolation Strength 500 V AC 1) 绝缘强度 500 V AC Mind the consequent equipotential bonding and meshing 考虑到由此产生的等电位连接和接合 Intrinsically safety Ex (i) in acc. with EN 50 020依据EN 50 020的本质安全型Ex (i) 信号线 变送器1) 传感器 1) 接地地网系统 Training Ex-Basics 2008 ME Mu 3 4 1 2 MD / Ex 1 2 3 4 Signal Line Trans- mitter 2) BLITZDUCTOR? CT BLITZDUCTOR? CT Sensor 1) Meshed Earthing System 2) Isolation Strength 500 V AC 1) Isolation Strength 500 V AC Mind the consequent equipotential bonding and meshing Intrinsically safety Ex (i) in acc. with EN 50 020 Non Ex-Area非易爆区域 Ex-Area MCR-Circuit Ex(i) 易爆区域MCR-电路 Ex(i) 信号线 变送器1) 传感器 1) 接地地网系统 2) 绝缘强度 500 V AC 1) 绝缘强度 500 V AC 考虑到由此产生的等电位连接和接合 Training Ex-Basics 2008 BLITZDUCTOR? CT MD/ExExample of Application: Transmitter with Ex (i) Buffer应用实例: 变送器 Ex (i) 2535.ppt / 22.12.1999 / KK S2535 Training Ex-Basics 2008 Flameproof enclosure Ex d in acc. with EN 50 018依据EN 50 018的隔爆型Ex d Training Ex-Basics 2008 Flameproof enclosure Ex d in acc. with EN 50 018依据EN 50 018的隔爆型Ex d In the case of an ignition inside the enclosure, the housing must resist the pressure and there must be no possibility of an transfer of the ?internal“ explosion to the outside. Use in high voltage systems, switching devices, parts gener