How to measure the grounding resistance of a house?
Each house, after installation, needs to be tested for compliance. The other reference standard is the grounding resistance value. The next one is to measure the grounding resistance value by the precision four-wire method.
Guangzhou Energy ES3010E Grounding Resistance Soil Resistivity Tester (simple type) can measure the grounding resistance, soil resistivity, grounding voltage measurement and other functions using the 2, 3, and 4 wire methods. The grounding resistance range can reach: 0.00Ω～30.00KΩ, the soil resistivity range can reach: 0.00ΩM～9999KΩM, and the voltage range is 0～600V.
As shown above: ES3010E standard accessories include: 1 instrument, 1 instrument box, 4 auxiliary grounding bars, 4 test leads, 2 simple test leads, 1.5V battery, 6 sections, user manual, warranty certificate, 1 copy.
Take out the ES3010E grounding resistance soil resistivity tester
The four-wire precision test method is used to test grounding resistance (refer to the figure below for wiring). The default distance between the grounding bars is 5 meters.
Ground the red current electrode
Ground the yellow grounding rod
Clamp both green and black to the ground lead of the device
Insert the corresponding color into the meter interface
Rotate the switch to the grounding resistor RE, this is gear of the grounding resistance measurement
Press the TEST red button to start the test.
Countdown to 10 seconds, there are still 7 seconds to complete
The grounding resistance is obtained, 3.28 ohms, the grounding condition is good at this time, and the inspection is qualified.