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)
2017GB/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)
2006GB/T 14048.13-2006 Low-voltage switchgear and controlgear Part 5-3: Control circuit devices and switching elements Requirements for proximity devices with defined behaviour under fault conditons (PDF)