Ground resistance testing is a critical safety factor that should be checked yearly. Grounds typically experience corrosion or resistance increase so by evaluating ground stakes and connections on a regular basis, you will be able to replace or repair old or faulty ones.
A grounding stake is typically set up in a connected network or mesh configuration and is composed of three parts: the ground conductor that conveys unused current to the ground; a connector that runs between the conductor and electrode and the ground electrode.
In some areas, a ground plate is buried in the earth rather than using the staking method. No matter which method is used, testing of the ground resistance is performed using four main tests: soil resistance, potential fall, selective and stakeless. We offer several different ground resistance testers for you to choose when performing diagnostics.
Megger test equipment offers the Megger 250202 Digital Ground Resistance Tester or DET2-2 that features full digital display and testing for earth resistance from 10 m ohms to 19.99 k ohms at a maximum test voltage of 50V.
The Metrel 2088 Ground Tester offers 2 to 4 point ground resistance with test voltages of 50V up to 1000V. Its heavy duty storage capacity allows for 1000 unit results for three different tests: the fall of potential, point to point and slope.
For all your high voltage test needs, choose Protec’s affordable rental or lease program. We offer daily, weekly and monthly rental of equipment with free calibration performed prior to delivery. Call us at 866.352.5550 to find out more or sign up to receive special pricing online.