Back to the PCB question, I worked in the electric utility industry for over 40 years, and the transformer and capacitor manufacturers provided suitable replacement fluids for oil filled capacitors. If a recall correctly, the main advantage of the PCB fluids was fire resistance, I do not recall the fire resistance of the newer fluids. In any case if you really want oil filled caps, they are available, but there are better alternatives that have no oil. When ours failed, the repairman made a comment about ours being the FIFTH one that day, and that there must have been a bad batch.
Hope this helps.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|