- Internal arc test according to IEC 62271 202 for compact stations and accessible stations
- Inspections A and B
- Inspection with SF6 systems and air insulated systems
- Internal arc test according to IEC 62271 200 for MS systems
- Temperature class 10
- Protection class IP 24 d
- EMV Inspection according to DIN VDE 0848 Part 1
- Fire protection design according to DIN 4102 Part 4
- Oil Density verification
- Project-related statistical verifications