cable and conduit questions
I am doing a kitchen remodel, and I need to replace and install some circuits. I need to make sure what I do is code compliant. My service panel is mounted outside the house, and there are 3 12/2 nm cables and 1 6/3 cable running through the back of the panel and into the house through holes bored in a wood framing member. These cables are not secured inside the panel, there is no conduit, and the NM cables are running to the various outlets via holes bored thru studs, or running parallel on the inner face of studs. My first question is: does the code allow NM cables connected from the service panel in this manner?
My other questions are related. I need to add new circuits from the panel to run outside the house a couple of feet and then 90 degree turn into the house through a hole in the brick. I was planning on using sched 40 PVC with a LB condulet (it would be 3 to 5 ft above grade). Can I use NM cable in this case, without securing the cable inside the panel? Also, where the conduit enters the house, can I simply bend the cables and secure them to the nearest studs, or would I need to first install a junction box to attach the conduit?
Any advice would be greatly appreciated!