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<blockquote data-quote="pwatts" data-source="post: 1172150" data-attributes="member: 146"><p>Means the MOVs inside blew, that at least meant it offered a degree of protection yes. Better to install surge arrestors in the DB than on appliances (and cheaper) and as proved by many in this thread, lightning strikes are only protected for mild surges from faraway strikes. For a close or direct strike, a total disconnect is the only solution. Not even turning off the plug at the wall will help, it will simply melt the switch and arc through; the MOVs in an inline protector will explode. I once repaired a DAC that had a decent-sized MOV but a lightning strike turned into a hand grenade that mechanically took out a bunch of components around it; the chassis lid looked like a blast crater from it. The transformer windings were charcoal.</p></blockquote><p></p>
[QUOTE="pwatts, post: 1172150, member: 146"] Means the MOVs inside blew, that at least meant it offered a degree of protection yes. Better to install surge arrestors in the DB than on appliances (and cheaper) and as proved by many in this thread, lightning strikes are only protected for mild surges from faraway strikes. For a close or direct strike, a total disconnect is the only solution. Not even turning off the plug at the wall will help, it will simply melt the switch and arc through; the MOVs in an inline protector will explode. I once repaired a DAC that had a decent-sized MOV but a lightning strike turned into a hand grenade that mechanically took out a bunch of components around it; the chassis lid looked like a blast crater from it. The transformer windings were charcoal. [/QUOTE]
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