Can you splice secondary conductors from a utility transformer?

[Jimmy7]

We're changing out an old main switchboard, and the following question came up "Is it permissible to splice underground secondary conductors from a utility transformer to extend to a new main switchboard?"

 

[Hv&Lv]

We're changing out an old main switchboard, and the following question came up "Is it permissible to splice underground secondary conductors from a utility transformer to extend to a new main switchboard?"

Main switchboard..
So your after the point of interconnect?(meter)

 

[Rock86]

Take a look at 230.33