At 03:46 PM 6/5/2009, you wrote: >Most, but not all, mechanical switches produce a spark when the switch >is closed. Spark = voltage surge. >You can often see this by looking at a wall switch in a dark room as >you flip the switch. This is also why light bulbs burn out just as >they are switched on.
A spark is NOT a surge, it's an artifact of a non-zero-crossing switch. ALL mechanical switches arc and none of them create surges. And the spark has absolutely nothing to do with why light bulbs burn out when turned on. Ira --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/brewtus?hl=en -~----------~----~----~----~------~----~------~--~---
