Quote:
Originally Posted by retiredguy123
I assume you are saying that the transformer doesn't have a surge protector. But, why does the lightning need to travel through a transformer to be covered by the SECO warranty? As I read the warranty, if the lightning strikes the power line between the nearest transformer and your house and travels through the SECO surge protector, there is no warranty coverage. In order to get coverage, the lightning needs to actually travel through a transformer. Why?
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It can strike or be induced into the wire between the transformer and the house.
But most damage is due to the electromagnetic pulse (EMP) inducing transient voltage and current surges from the strike. Not from the power line. As others noted here, damage occurs even several homes away from the strike.
EMP Protection - How Do You Protect Your Assets from EMPs
The SECO will reduce the risk from power line damage but the warranty is not very helpful for electronic devices likely to be damaged by an EMP. This is why protection is also recommended at the device.
Surge suppression was added to the national electrical code over five years ago and finally adopted by Florida this year.