What is the total load of the fixtures? What is the rating of the photocell? Distance would make no difference between a photocell or a contactor, just voltage drop.
Will they be using more than one photocell? That is two circuit’s minimum. One photocell for each circuit?
FYI, I doubt the photocell is rated for 20A of LED load. It needs to be rated for LED drivers, and you will find that the total wattage will be significantly less than the tungsten rating. Here is a quick read about it. One thing I noticed that the article left out is that most newer Fluorescent ballasts fall in tot he same category as LED. They are electronic, not magnetic and fall under the same issue as LED.https://www.prolampsales.com/blogs/...hotocontrols-are-compatible-with-led-lighting
Why are you debating this here...you should be sending it to "The E and C firm" aka "Request For Clarification" aka RFC and let them fix it...for they are the only ones that can fix it!
Again I ask...why are you debating here??“Debate”? That’s what politicians do
This will definitely be a Change Order since it’s already installed!!!
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In street lighting projects they specify a twist lock socket wired for a twist lock photocell on each fixture. When the photocell fails it's easy to find and replace.
That's no problem if it were me, though! I'd let the photocell drive contactor/s and then use the contacts to control other lighting units as need be! I mean, you could light up the whole perimeter of a grandstand using one photocell driving lots of contactors, you know?
I till question whether they are actually 400 watts, or "400w equivalent". Either way, it is very doubtful that a single photocell can handle the inrush of those fixtures. I am pretty sure a photocell will be required, so the only real question is where does your responsibility lie? For me, you have no actual responsibility. So, it depends on the attitude of the Electrical Engineer, whether I would point it out, and how I would point it out. If I had a good working relationship, I would talk to them directly so they could be the ones to bring it up officially. If I din't care for them and didn't mind antagonizing them, I would write a "hey stupid" RFI. BTW I don't see your posts as debating, just discussing.