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How can I test to ensure that my grounding for the bonding of 55 gallon drums for static electricity is working?

Hi Tommye,

Thank you for your question regarding the testing of 55 gallon drum static electricity bonding, it is our pleasure to help.

In any static grounding system, there are generally three (3) systems we are worried about.  The first one is the primary ground source that leads back to the first service disconnect.  The second is the resistance-to-ground of the grounding electrode.  And the last is the required resistance, if any, of the ground connections.  In static grounding, there is often a specific resistance required so that the static that is formed will be removed from the system slowly.  In your case, you probably do not have a resistance requirement and should have a very low impedance ground path.

The proper way to test your system, is to use a standard 2-point ohm-meter by connecting one of the leads to a bonded 55-gallon drum, and the other lead to the ground bar (inside) at the first service disconnect.  The first service disconnect is the main electrical panel supplying power to where your 55-gallon drum static system is located.  You will need to account for line lead loss by subtracting the resistance of the test leads.  The result is the resistance from the 55 gallon drum, through the static grounding system, back to the primary electrical source.  You will want an extremely low number, something less than 0.1 ohms.    We recommend using true Direct-Current (DC) ohm meters, as alternating-current (AC) will actually provide an impedance value, not a true resistance.

The second aspect will be to ensure that there is an effective grounding electrode.  This process is a bit more detailed and complex, but here is a link that will get you started:


We hope that you find this information useful.  If you should have any further questions, please do not hesitate to call us at 310-318-7151 California time, and someone will be glad to speak with you about your project, free of charge.

Best regards,

The Engineering Team at E&S Grounding Solutions


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1 Response

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