Hello everyone. On this occasion I wanted to ask you about installing a javelin in my house. I am rewiring the whole house putting the grounding wire. All grounding will go to the sectional board (without returning to the main board) and from there it would go to the javelin. Is this correct ? I tell you that the main board is on the pillar and only consists of a 40th thermal. I attached an image to get a better idea. Thanks in advance!

It is correct, only two observations: 1. If there is still no supply, a javelin may be required on the pillar, if there is already a definitive supply, and the pillar is not precisely class 2 insulation, better known as double insulation, grounding is mandatory (for safety and regulation ) so it is recommended to place a second javelin in this case for the abutment 2. Something that caught my attention although it is not important, note that the sectional is at the back of the house (taking the location of the pillar as the front) this escapes the usual, calculation will have been for aesthetic reasons