Troubleshooting Home Lighting Problem

[Burfameng]

Hi Guys.

I have a problem at home, and it's confusing me!
My light bulbs are blowing, not just the filament fusing, but the whole base EC and BN are also arching through!
Only when we switch on the light bulb, not when it already burning (on).
It has an intense bright light for a split second, then blows!
After replacing the bulb, it works fine for a week or so, then blows again!
This happens with incandecent and energy saving lamps!

A friend told me it could be, Floating Earth!
But I can't make any sense of Floating Earth!
Anyone with advice or a explainition on this fault, or Floating Earth?

 

[Phrak]

Your utility may use Earth as neutral return. This can cause an inbalance in the two phases of a 220 utility. You might try pouring some water on the ground stake, if that's the case.