I agree with trainwire. Often times, a nice neat panel, turns into a rat’s nest when machinery/equipment malfunctions. Sometimes, in industrial setting, it has to be fixed as fast as possible and more often than not there are no prints available. So to troubleshoot the maintenance person starts cutting ty-raps and pulling on wires to see what powers what and where the wires go. When the equipment is back up and running everyone is happy and time is not taken to redress panel as it originally was. The result is a mess as pictured above.