Emergency battery pack lighting in site with standby generator
Can anyone tell me if you need emergency battery pack type lighting in a waste water treatment plant if the entire site is backed up on standby generator?
Yes you do.
If the gen set takes longer than 10 seconds to come online
There is also a requirement to separate the legally required loads from the optional ones; EM lighting and exit signs vs. HVAC. There's a lot of detail in Article 700.
how is the generator listed ? Legally required or emergency generator or backup gen. I am not sure one has 1 minute vs a 10 second requirement. just asking. i don't know.