What is the difference between emergency power and backup power?

- Nov 30, 2017 -

What is the difference between emergency power and backup power?
1. Standby power is relative to the main power source, requiring that the  standby power be derived from a relatively independent power source from  the main power source. When the main power  disappears, the backup power should be able to automatically or manually  cast on to ensure the reliability of electricity;
2 .The emergency power supply is a power supply that ensures the safety of  personal and equipment settings in the event that both the main power  supply and the backup power supply have disappeared. This power supply  is generally required to be independent of the external power supply so  that the emergency power supply can continue when the external power  supply fails Run;

3.will be sent to  the emergency power supply needs of this power load to the power supply  system is the emergency power supply system, including switchboards and  cables, protection.