Ground Rod Resistance To Earth

In areas where driving ground rods may be impractical the two point method can be used.

Ground rod resistance to earth.

For a safe electrical system your ground rod resistance should have a very low resistance value. Go back to ways to improve earth electrode resistance 3. If you do not have one already you can easily install a ground rod for your home. If this is the case for your ground rod the best solution is to drive a different rod into a different location.

The lower it is the better job it does. 2 point dead earth method. Chemical treatment of soil is a good way to improve earth electrode resistance when you cannot drive deeper ground rods because of hard underlying rock for example. To properly test the resistance of a ges you must follow some simple rules.

The rule is that the lower the resistance it has the better job it does. It is beyond the scope of this manual to recommend the best treatment chemicals for all situations. You can only do this by using the fall of potential method with a three terminal earth ground resistance tester. Run the wire to your test location.

Treatment of the soil. Step 1 connect your length of wire to a metal stake in the ground. Ground ring ground rods. The goal in ground resistance is to achieve the lowest ground resistance value possible that makes sense economically and physically when contacting the earth also known as the soil ground rod interface.

Four of the most common methods of ground resistance testing used by test technicians are discussed below. The function of any ground rod is to dissipate the current that is recovered in any faulty electrical circuit near your house to the earth surrounding the ground rod. Make sure that you have stripped back the insulation from both ends of the wire to allow for a good connection. In some instances ground rods can be installed in areas where the earth has a lot of resistance.

You should measure the resistance of an electrode with respect to the surrounding soil in the area. For instance if a ground rod is driven into a very rocky and dry area it may not conduct electricity into the ground well.