He calls the sky when the installation is complete, test the point all ground. Measured resistance to the standard value, according to the law for the safety of the buildings and people working inside the building.
When installation is complete, the lightning rod for all the test point to ground. Measure the resistance to be the standard by law. For the safety of buildings and people working in the building.
Lightning rod when the installation is complete let down the long spot test brand. Measure the resistance to the standard prescribed by law. For the safety of buildings and workers within the building.