- National Quality Supervision & Inspection Center for High Voltage Apparatus
- National Quality Supervision & Inspection Center for Insulator & Surge Arrester
- National Quality Supervision & Inspection Center for Power Capacitor
- National Quality Supervision & Inspection Center for Smart Electric Equipment
- National Type Evaluation Laboratory for Instrument Transformer
- Testing laboratory: Xi’an High Voltage Apparatus Research Institute Co., Ltd.
- Calibration laboratory: Mechanical Industry Fifth (Xi’an) Measurement Test Center
- Statutory Metrological Verification Institution Xi’an High Voltage Apparatus Research Institute Co., Ltd. Mechanical Industry Fifth (Xi’an) Measurement Test Center
- Mechanical Industry Fifth (Xi’an) Measurement Test Center
- IECEE Certification Authorization CB Test Laboratory(IECEE CBTL)