I have been involved with Safety and EMI test labs getting product tested for compliance regulations. They usually full of "interesting" wiring practices. 240V 50 Hz bus ducts with 15 & 20 A US recepticles, 240V in 0-280V out Variacs with oversized fuses and electrical tape for fuse covers. 10 KW power supplies with multiple energized output leads just clamped to a piece of wood. Most of the power cord whips I saw had the just the insulated conductors hanging out of the back of the plug. Occasionally I saw the cable just poked thru the knock out with no attempt of strain relief.
These guys made engineers look good.
Larry C
