Chris Lewis wrote:

According to Pete C. :

Sxxx *IS* approved for permanent installations in the US. It is approved
for flexible cord drops service a single device as long as appropriate
strain relief is used at it's connection point.

SJxx? Exposed to the sun or weathering? I sure hope not. It don't last too long.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.

Not service entrance, drops a.k.a. pendants. See NEC article 400.7(A)
for a number of examples where flexible cords and cables including Sxxx
are permitted in permanent installations.

Pete C.