1. Storage batteries voltage (20НКБН-25) should be not less (in Volts)
2. After GPU DC connection to the aircraft the following indicating come on
3. DC left and right bus tie is automatically
4. APU generator ГТ40ПЧ6 is used for
5. In case of four generators ГТ60ПЧ6А failure in flight it is necessary to connect
