GB/T 14048.13-2017

Low-voltage switchgear and controlgear—Part 5-3: Control circuit devices and switching elements—Requirements for proximity devices with defined behaviour under fault conditions (PDDB)

低压开关设备和控制设备 第5-3部分：控制电路电器和开关元件 在故障条件下具有确定功能的接近开关（PDDB）的要求