How to insulate pins on a flyback transformer

Thread Starter

coolyyz321

Joined Mar 17, 2017
56
I am having a little problem with my flyback transformer, there is arcing between the pins that bogs the power down from the spark . heat shrink, hot glue or tape does not work, what would be the best way to prevent arcing between these pins?
 

Thread Starter

coolyyz321

Joined Mar 17, 2017
56
IMG_0197.JPG here it is its the pin with the heatshrink(Black pin, hv ground) and the pin to the right of the black pin is arcing, tell me if i need a better photo.
 

ian field

Joined Oct 27, 2012
6,539
Silicone rubber should also work.
Indeed - epoxy can be a PITA to remove if it needs modification.

RTV is rather easier.

In theory - you're supposed to use special RTV that doesn't exude acetic acid as it cures (strong vinegar). Dow Corning is one brand I know of. In practice - I usually just get a cheap cartridge of builders silicone sealant from the DIY store.

The cheap stuff is leaky until it cures - it will "string" and bridge the gap due to electrostatic attraction.
 
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