ⓘ Due to recent tariff adjustments, product prices may be affected, and some surcharges may not yet be included in the prices shown.
We’re Sharing the Burden — Absorbing 50% of Tariff Costs to Help You Save. Learn More.
ⓘ Debido a los recientes ajustes en aranceles, los precios de los productos pueden verse afectados y algunos recargos podrán no estar incluidos en los precios mostrados en nuestro sitio web.
Para ayudarle a ahorrar, estamos asumiendo el 50% del costo de los aranceles. Más información en este enlace.
AEMC’s GroundFlex® Field Kit includes the GroundFlex® Adapter Model 6474 and Ground Resistance Tester Model 6472. This is the ONLY system on the market capable of testing ground resistance of individual power transmission tower legs, as well as total resistance without disconnecting the overhead ground wire – this alone is a huge time and money saver, not to mention a major safety improvement.
Key features include testing both ground resistance of tower legs (individually and total) and overhead ground wires. This system tests leakage current through the tower legs and tests at frequencies up to 5kHz to profile impedance, which is important to characterize for lightning strikes.
Tower testing with the Models 6472 and 6474 consists of four main steps:
1. Check the placement of the instrument’s test electrodes.
2. Check the integrity of the tower’s ground connections.
3. Perform active measurements on the tower's footing impedance and overhead ground conductor.
4. Verify the measurement results with a 4 pole earth impedance (lattice network) test.
The first two steps must be completed successfully (including making any required adjustments to bring measurements within the suggested ranges) before you can perform active testing on the tower.
In this video, we explain how to use AEMC’s 6474 GroundFlex® Field Kit in conjunction with our 6472 Digital Earth Ground Resistance Tester to test a power line transmission tower. These towers are highly susceptible to lightning strikes (which can result in dangerous flashover conditions) and therefore need to be properly grounded. The GroundFlex® Field Kit enables you to accurately measure how well each tower is grounded, as well as test the quality of the overhead ground conductor connection.