If the Earthing rod needed length<=3000mm, use the earthing rod one pointed, strike deep directly
If the Earthing rod needed length >3000mm, strike down the eathing rod one pointed first,then use the Coaxial Connector(ground accessories) to extend the rod's length, then strike deeply
There are two connection methods between ground rod with earthing network:
1) usd BSD Exothermic Welding;  2) use BSD Earthing Clamp