What is best practice/recommendation when I want to protect against lighting/surge? More specfically, my application requires passing the following test:
"ANSI/IEEE C62.41---1.2/50 microsecond (uS) — 8/20 uS Combination Wave. Peak voltage is 10kV, peak current is 5kA"
In the past I have had alot of sucess with just using MOVs alone, however, now I am thinking of using a TVS as well as spark gap right at the input for for extra protection on my next board. Here is the schematic for what I am talking about: