Hello again from Ask Doug The Electrician! I just worked on a project where we needed to install a dedicated circuit with an isolated ground for a home office. I though this info may help clear up a couple of grounding questions... Or, it could stir up a few more! No worries, let me know and I'll answer you with more info than you need!
A "proper" ground must measure 120 volts from power (hot) to ground, no less. Or, a ground impedance of less than one Ohm. 25 ohms or less is mandatory, otherwise a second ground rod should be installed at least 6' away. A "proper" ground must measure 120 volts from power (hot) to ground, no less. Or, a ground impedance of less than one Ohm. 25 ohms or less is mandatory, otherwise a second ground rod should be installed at least 6' away.
I hope this helps a bit.
Thanks again,
Ask Doug The Electrician
Doug
Do you have an electrical question? Renewable energy question? Ask Doug The Electrician! I bet I'll have an accurate answer for you! Ever wonder about how electricity gets to your home, and where it goes from there? Comments and conversation are always welcome. Welcome!
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