I will give it a shot.
Expansion fittings might be required for the raceways in the picture.
If a concrete side walk is being poured around these raceways the inspectors I have had will not ask for expansion fittings.
Or if this is an area of the country that does not have frost heaves and settling is not expected, expansion fittings are not required.
This picture looks like a landscape area, I would expect some setting would occur.
IMO expansion fittings should have been used.
300.5(J) Ground Movement. Where direct-buried conductors, raceways, or cables are subject to movement by settlement or frost, direct-buried conductors, raceways, or cables shall be arranged to prevent damage to the enclosed conductors or to equipment connected to the raceways.
Bob
