Protective Grounding:

Protective grounding protects people and electrical equipment from overstrain and currents that can occur in case of an accident, misuse of equipment or lightning. Protective grounding is also used to protect equipment from ripples or breakages, especially when there are an instantaneous fluctuation in the grid and consumer chain as well as from electromagnetic signals from nearby equipment.

The main purposes of protective grounding are:

1. Lightning protection grounding

2. Grounding of pulsed surges

3. Grounding of surges inside the grid

Such kind of groundings are constructed for electrical safety purposes (PU 1.7.29).

Grounding in tha Part of Lightning Rod:

The lightning rod is designed to divert lightning from the observed building or object and to unload it through grounding. Usually lightning strikes the most visible metal conductor that is above the building, and then transmitting it through conductors on the outside of the building (for example, over the walls) into the ground, which has the ability to absorb and discharge that current.

In the absence of a lightning rod, lightning strikes a low-resistance object or element, such as a TV antenna, cable, metal roof, solar modules, and etc.

In order to make the lightning rod more "attractive" to the lightning, as well as to exclude its penetration into the building or object, it is grounded with a low-resistance grounding.

Such system is necessary, because it helps to absorb and discharge overstrains caused by lightning in the ground, preventing its spread in the observed object.

In our previous articles we spoke about the importance of technical materials in the plain language, so this material is also written in plain language, no complex calculations, schemes, or terminology used.

The article was published in 30.07.2028.

Last updated in 08.07.2020.