Draft Document - Residual current operated circuit-breakers type B without integral overcurrent protection to operate at residual alternating and residual direct currents for advanced preventative protection against fire - Part 110: RCCB Type B+
文件草案.在剩余交流电和剩余直流电下运行的无整体过电流保护的剩余电流操作断路器B型高级防火保护.第110部分:RCCB B型+