Was URD ever allowed to a main breaker?

WD40

Member
Location
Philly
Occupation
Electrician
Hello group I replaced a loadcenter that had a bad main breaker with a larger one at a townhome in a 55 and over complex and the inspector approved my job but commented the feeder from the meter is in violation, it is 4/0 URD / XLPE from a gang of meter mains out at a parking area.
He mentioned another EC had also replaced a panel recently in the complex and there appears to a ongoing issue.
The customer was present for this conversation and happens to be on the board of the home owners association.
So we opened up the meter packs and all the units were wired the same with URD the codo's are not very old, perhaps 20 years old max.
The inspector says this is a construction defect and URD was never allowed by code to enter a building, and has a inferior alloy, what do you all think?
My job is approved, done and paid, the inspector is not mandating a fix. I want to get some feedback to the customer per his request.
I was able to find the data sheet for the URD cable used: link.
 
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The inspector says this is a construction defect and URD was never allowed by code to enter a building, and has a inferior alloy, what do you all think?
It is both the alloy, as that uses utility grade aluminum and not the 8800 series alloy required for use under the NEC, but is and the fact that it does not have the fire and smoke ratings required for interior wiring.
 
Thanks for the responses, the data sheet says the conductors are:
Class B or SIW compressed 1350-H19 aluminum.
 
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