I need help, I have a 1/2 " underground conduit with 14 2 w ground running 100ft . At 50 ft I wish to take an additional tap to a small load ~1.5 amp. Help with details. thanks this electrical conduit runs under a paved parking lot and can not be doug up. However at mid point the concuit does pass unger a flower bed. I have doug dowm to expose the 1/2" conduit, it is at this point were i want to put the wire and add an additional light. Keeping the entire ckt in contuit is a priority.