I am trying to answer a question from a property in Morristown NJ who is having problems with buried line voltage electrical lines running between two of their buildings. It appeared to be installed in conduit (installation was done in 2011). However, when the maintenance staff tried to pull the line to replace faulty wiring, they found out it's direct burial. They are trying to find out if the original contractor who installed it was following the code. Is direct burial of line voltage wiring acceptable in NJ (more specifically, in Morristown, NJ).