Quote:
Originally Posted by 1930-Pickup
My understanding is that the voltage rating is the voltage at which the insulation becomes ineffective (or breaks down). Is this correct?
Why the very high numbers in voltage ratings for these condensers? Its fairly easy to find voltage ratings of 600v, or 1000v, or more.
What is the purpose of such high voltage? You could say its 'safety factor', but that high? If an airplane wing could be rated at 3 times the force it would ever see in service, engineers would be happy.
Is it that very high voltage values are so easy to achieve that we set the bar so high...way past what is really required? Or is there a true engineering requirement why a 6v ignition system should have 600v rated components?
Inquiring minds want to know.
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A voltage spike occurs in the circuit when the points open and the magnetic field in the coil primary collapses. This spike can be 400 volts or more.