m1abrams
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Quote:
Not to mention the only failure that grounded the chassis is meant to prevent is to keep from causing the chassis having AC potential. The failure you describe would cause damage but not cause AC mains to make it to the chassis to many components between the transformers primary and chassis to make that happen without a very specific secondary failure in BOTH the sigma11 board and the b22 board.
Originally Posted by fishski13 /img/forum/go_quote.gif any catastrophic failure of the TX would take out the o-22 and blow a fuse. the MOSFETs will not pass mains to the B22. |
Not to mention the only failure that grounded the chassis is meant to prevent is to keep from causing the chassis having AC potential. The failure you describe would cause damage but not cause AC mains to make it to the chassis to many components between the transformers primary and chassis to make that happen without a very specific secondary failure in BOTH the sigma11 board and the b22 board.