Reply to "A way to possibly detect a blown TVS Diode, is this possible?"

Vernon BarryOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Drawn vertically which better shows light in parallel to fuse. When the fuse blows- circuit is no longer protected= bulb lights when track is powered indicating lack of protection at that point.

Replace both the fuse and the TVS when the fuse blows.

*****The fuse is NOT protecting the track from over current in this diagram****

The fuse is there so when/if the TVS fails shorted, then the fuse blows from the sustained high current, providing an indicator via the light bulb. Also, you want to use a relatively higher amperage fuse. One that would blow if the TVS remained shorted, but not so low as to blow prematurely. Again recommending probably 10-15A, maybe even 20A fuse value.

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