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darksofa | 3 years ago
To emphasize tuatoro's points, it appears some of your branch circuits were damaged by the strike. Their wiring needs to be inspected to see if the insulation was compromised. If yes, the wiring needs to be replaced. The dead kitchen appliances need to be evaluated for safety -- they could now be an electrocution risk.
Many of the comments display a dangerous (and common) misunderstanding of the purpose of a grounding rod. The language used for this topic is confusing, which doesn't help.
The important thing to know is: A GROUNDING ROD IS NOT A SAFETY GROUND.
Article 250 of the US National Electric Code covers "grounding" and "bonding." Note the two different words. "Grounding" (connect to earth) is done to limit voltage induced by lightening, line surges, or unintentional contact with higher-voltage lines.
"Bonding" is the connecting metal parts of enclosures, cases, and equipment to the supply source via an effective ground-fault current path. Bonding is what provides safety. This is what most people think of as the green "grounding" wire (in the code, called the "equipment grounding conductor."
Note it says "to the supply source." In your case, the source is the house 200 m away feeding your panel. The cable from that house should be 4 or 5 conductors, one of which is the equipment grounding conductor ("ground wire"). If the cable does not include the equipment grounding conductor, the cable MUST be replaced. It is not safe to run a separate wire back for the grounding conductor.
See this document on article 250 requirements:
https://www.mikeholt.com/instructor2/img/product/pdf/20NCT2-...
Thailand has 230 V / 50 Hz service, but the grounding and bonding principles are the same.
TowerTall|3 years ago