Quote Originally Posted by AndyUK View Post
Just to add to this point, I was informed by a chap who is 'Head of Electrical Wiring' at a technology company who produce lots of these large cabinets as part of their product to keep every type of cable as separate as possible: ie Mains AC type cables go on one side of the cab, Low DC go in another, High DC in another, and signals away from it all.

This is why I've tried to layout my cab in various areas; mains AC distribution and switching, then 24V distribution, then Signals, then 68V distribution etc.
This is something which often happens in DIY builds and causes plenty of head-scratching and sleepless nights, The lower the quality of electronics used the more trouble it tends to cause. Tie wrapping signal wires tightly together is also another mistake that causes trouble.!