Electric CB tripping regularly after Lightning strike???

[jdring]

Hope someone can explain this...
I had a lightning strike during a hail storm yesterday in Oxon. It caused a power surge and at least one of my power supplies (to my WiFi router) broke with a flash. My home PC and stuff was behind a Surge Protector amd although it lost power, no damage.

Now the mystery. The uptairs lighting circuit braker tripped. No surprise there, it trips whenever a light bulb blows. I reset it and checked the lights - none had gone.
Then it tripped again. I reset it again. Then it reset again after 5 minutes. I tried switching all the lights off, reset the CB, and it still trips after a random amount of time - a few minutes.

Now...I guess I could have some shorting occuring, but didn't expect it to trip without any lights on.

Could it be that this is a sensitive circuit, and that the 'house' itself now has a raised electrical potential after the lightning strike?? Maybe it will settle down after a day or so?

Anyone explain this?

The lighting circuit in question has a mixture of normal bulbs, low energy ones, and reflector types, but no 12V ones with transformers or anything.

-curious (and baffled).

[jdring]

I'm disappointed that noone had any theories on this.

As I expected, this lasted for a few days then settled down.

My own theory is that this lighting circuit has always been a little sensitive...possibly a pinched cable or something up there, and that the raised potential of the bulding kept pushing it over the edge! I don't really know, but its calmed down back to normal (only tripping when a bulb blows).

Any other ideas?
-j