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PELV回路(PELV circuit)

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current in the circuit  voltage in the circuit  inductance in the circuit  resistance in the circuit  
特低电压 ELV  安全特地电压 SELV  保护特低电压 PELV  功能特低电压 FELV  
SELV  PELV  HELV  FELV  
current flow in a circuit  voltage between two points in a circuit  circuit continuity  power  
series with a circuit  parallel with a circuit  series-parallel with a circuit  delta with the shunt  
adding rubber insulation conductors to the circuit  using higher current and lower voltage increasing the  number of thermal relays in the circuit  using higher voltage and lower current  
melts and must be replaced  is enclosed in a tube of insulating material with metal ferrules at each end  gives no visual indication of having opened the circuit  trips to break the circuit and may be reset  
自耦变压器  安全隔离变压器  电压互感器  输入与输出回路同时接地的变压器  
采用电气隔离作防护  采用PELV作防护  采用Ⅱ类电气设备  采用等效绝缘  
SELV  PELV  HELV  FELV  
安全特低电压SELV  保护特低电压PELV  自动切断电源  总等电位联结  
series circuit  grounded circuit  short circuit  closed circuit  
A interface exist crossconnect circuit  inconsistent CCSPCM between BSC and MSC  A interface exist loop circuit  inconsistent circuit number in circuit group between BSC and MSC  
the voltage between two points in a circuit  circuit continuity  current flow in a circuit  total or partial circuit resistance  
SELV  PELV  HELV  FELV  
can be reset to energize the circuit  should open the circuit when overloaded  will burn out when an over current flow develops  All of the above  
PELV  FELV  SELV  ELV  
capacitive circuit  inductive circuit  magnetic circuit  resistive circuit  

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