| 21 | Vehicles, installations and equipments for railway applications | 17 | Power frequency electromagnetic field | Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC 62236-4:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2016 6 |
| 18 | Disturbance voltage | Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply apparatus and systems GB/T 24338.6-2018 4 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus, MOD IEC 62236-5:2018 5 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus EN 50121-5:2017 5 |
| 19 | Radiated disturbances | Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply apparatus and systems GB/T 24338.6-2018 4 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus, MOD IEC 62236-5:2018 5 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus EN 50121-5:2017 5 |
| 20 | Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply apparatus and systems GB/T 24338.6-2018 5 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus, MOD IEC 62236-5:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus EN 50121-5:2017 6 |
| 21 | Radiated disturbances | Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply apparatus and systems GB/T 24338.6-2018 5 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus, MOD IEC 62236-5:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus EN 50121-5:2017 6 |
| 22 | Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply apparatus and systems GB/T 24338.6-2018 5 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus, MOD IEC 62236-5:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus EN 50121-5:2017 6 |
| 23 | Surges | Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply apparatus and systems GB/T 24338.6-2018 5 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus, MOD IEC 62236-5:2018 6 |
| Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus EN 50121-5:2017 6 |