Hi, I’m currently wiring all the sockets and lighting in the new kitchen extension. I run in to a problem where I need to take the cables around two corners. From my understanding safe zones don’t carry around corners. The roof above the sockets is pitched and there’s a steel beam. Do I run the sockets up and make a hole above the steel that meets the joists or run the cable around the corner some how? The fuse box is in the small room on the right. Thanks in advance