Question 126
The smoke sensors used in the NetEco6000 management system cannot replace the smoke sensors in the fire protection system.
Question 127
The standard stipulates that the voltage drop of AC cables should be controlled within 3%. When designing a UPS system, it is recommended that the voltage drop of AC cables be controlled within ().
Question 128
In a project, it is required to deploy three-layer temperature cloud maps in high-density areas. How many temperature probes need to be deployed in each cabinet?
Question 129
Which of the following alarm functions does the PDU8000 precision power distribution cabinet sub- circuit have? (Multiple choice)
Question 130
The backup time of UPS system is generally within 30 minutes. It is more reasonable to use the constant current method to calculate the battery capacity.