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Do's and don'ts in home lab with no earth ground

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bottledwater:
Hi, there's no earth ground in my plugs at home. Driving a stake into the ground is not an option and nulling in the box outside is not allowed. :--

If this is what you had to work with:

1) How would you connect test gear and power supplies that ought to be grounded to earth? What would you do with their chassis grounds?

2) What are some practices you'd adopt around handling static sensitive components from the moment they arrive in the post?

3) Are there some types of projects you wouldn't do in this earth-deficient "lab", like mains connected power amp repairs?

My concern is the safety of my components, my gear, and myself. I have a relatively nice power supply and oscilloscope, and I'm in the market for a good function generator, but I'm not sure how much I should try to do here. Failing logic ICs I can handle, but I'd be sad to see any of my gear blow up.

I mostly play around with breadboards and the occasional PCB. My main interest is basic battery powered amplifiers, CMOS logic, playing around with MCUs. For a year I haven't had anything fail on me so I wonder how much is theory and how much is practice.

Thanks!

bdunham7:

--- Quote from: bottledwater on December 08, 2022, 05:09:10 pm ---Hi, there's no earth ground in my plugs at home. Driving a stake into the ground is not an option and nulling in the box outside is not allowed. :--

--- End quote ---

Do you simply have two-pin sockets or is there an earth/ground terminal that just isn't connected?

Grandchuck:
Can you access a metal water pipe?  You would need to verify that it is indeed safe to do so!

themadhippy:
I'd be jumping for joy if i had a totally earth free location to work in

bottledwater:

--- Quote from: bdunham7 on December 08, 2022, 05:11:57 pm ---
--- Quote from: bottledwater on December 08, 2022, 05:09:10 pm ---Hi, there's no earth ground in my plugs at home. Driving a stake into the ground is not an option and nulling in the box outside is not allowed. :--

--- End quote ---

Do you simply have two-pin sockets or is there an earth/ground terminal that just isn't connected?

--- End quote ---
Yes, 2-pin sockets everywhere and no earth coming into the building anywhere, I've looked. The building is old so it's technically legal.



--- Quote from: Grandchuck on December 08, 2022, 05:12:17 pm ---Can you access a metal water pipe?  You would need to verify that it is indeed safe to do so!

--- End quote ---
I do have heat and water pipes coming in but it would be a long wire. In a pinch maybe I could access the main water pipe downstairs. But I heard it isn't safe to get your earth ground this way, at least for test gear? Maybe it would be safe/good for my ESD mat?

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