Electrical Ground Resistance Tester

Use our digital ground testers to diagnose those electrical grounding problems and avoid electrical hazards improve system performance and reduce risks to costly equipment.

Electrical ground resistance tester.

Procedure details are given in the instruction manual. It should be done when the electrode is first installed and then at periodic intervals thereafter. The three point method is the most thorough and reliable test method. The standard used as a reference for fall of potential testing is ieee standard 81.

Transcat offers ground testers from leading providers such as fluke megger hioki aemc that ensure every ground system application is properly covered. Discover our offering of earth ground resistance testers to help prevent electric shocks in your facility. The ground rod tester will not work like this. This was a good article.

Built to withstand an entire spectrum of ground testing methods fluke s family of earth ground testers have been designed to be accurate safe and easy to use. The goal in ground resistance testing is to achieve the lowest ground resistance value possible. Guide for measuring earth resistivity ground impedance and earth surface potentials of a grounding system. The most widely used specification for grounding is found in the national electric code which specifies residential grounds have a resistance of 25 ohms or less.

Used for measuring resistance to earth of an installed grounding electrode. When he measured the resistance of the ground rods he measured above the electrical connection. Powered by 120 vac the tester applies direct current across the test specimen. These meters can range from about 100 usd to over 1500 for professional models.

A clamp on ground meter is a specialized electronic machine that checks electrical resistance. They are available at hardware stores home improvement stores and online retailers of electrical supplies. I noticed that the camera did not show the reading on the meter when it was placed like this. This ensures that the resistance to ground does not increase over time.

However the video with travis christensen was misleading. This tester provides an easy way for an electric utility to check the resistance in protective grounding sets used by line personnel. The measurement of ground resistance for an earth electrode system is very important. All components store in the tester s integral carrying case.

These testers are the key tools in ground electrode tests which are mandatory every three years according to the international electrical testing association.