Elecestim123
Member
- Location
- MN
- Occupation
- Electrical Estimator
Estimating a project with a couple scenarios that I'm confused about.
1) The drawings are showing exit lights and night lights (Which are in the corridor) only being fed from an inverter. Unless inverters have gotten more sophisticated than I've understood them to be, they simply provide power ONLY when there's an outage. In that case, the exit lights and night lights would ONLY turn on when there is a loss of power. I doubt that's the intent. Fixtures designated as night lights are typically on 24/7 if I recall.
2) They are showing canopy lights being fed only from the inverter, but the inverter circuit is shown going through a lighting control panel. That makes zero sense to me. First, it seems to be the same situation to me as above. The light will never turn on UNLESS there's a power outage. And if that's the case, since the inverter circuit is going through a LCP, the light would never get power since the LCP would power down if there's an outage since it's fed from a normal circuit, so the LCP relay wouldn't get input from the LCP and never close the relay contact, never providing power to the fixture. Am I completely wrong here? Can you even have an emergency circuit going through an LCP?
If it helps:
The LCP model is (NLIGHT ARP INTENC08 NLT 4SPR) and the inverter is ( Myers EPS 6-EM-4-S-BD2005-M-5YP)
Picture attached. ELI-ES is the inverter.
1) The drawings are showing exit lights and night lights (Which are in the corridor) only being fed from an inverter. Unless inverters have gotten more sophisticated than I've understood them to be, they simply provide power ONLY when there's an outage. In that case, the exit lights and night lights would ONLY turn on when there is a loss of power. I doubt that's the intent. Fixtures designated as night lights are typically on 24/7 if I recall.
2) They are showing canopy lights being fed only from the inverter, but the inverter circuit is shown going through a lighting control panel. That makes zero sense to me. First, it seems to be the same situation to me as above. The light will never turn on UNLESS there's a power outage. And if that's the case, since the inverter circuit is going through a LCP, the light would never get power since the LCP would power down if there's an outage since it's fed from a normal circuit, so the LCP relay wouldn't get input from the LCP and never close the relay contact, never providing power to the fixture. Am I completely wrong here? Can you even have an emergency circuit going through an LCP?
If it helps:
The LCP model is (NLIGHT ARP INTENC08 NLT 4SPR) and the inverter is ( Myers EPS 6-EM-4-S-BD2005-M-5YP)
Picture attached. ELI-ES is the inverter.
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