marchhopper said:
480V fault found path through water main
This is what people miss. It's not about your load. It's about upstream faults using your rack as return path.
I would unground and use double-insulated equipment before pipe ground.
Question about grounding rack to copper pipe vs dedicated rod
kenji3
Member OP
So consensus seems to be:
- Pipe ground: works until it doesn't, and when it doesn't you may not know
- Dedicated rod: ideal, impossible for me
- Floating/isolated: better than bad ground?
- Actual electrician: ¥45k+ just to start
I think I'll add GFCI, test continuity monthly, and save for proper work when I move. Not satisfying but practical.
conbini > datacenter snacks
kenji3 said:
Save for proper work when I move
This is the real answer. 90% of homelab problems solved by "do it right at next place."
Meanwhile that APC rack is still $12. Want me to ship it? JK shipping would be $400.
world record: 4min Arch install
Following. Same concrete problem in my building.
What about using the building's existing earth terminal in the breaker panel? In my country every flat has one at the distribution board. Run 4mm² from there to rack.
Or is JP wiring different?
kenji3
Member OP
azharrdp said:
Building's existing earth terminal
JP apartments: panel is landlord side, sealed. Tenant side starts at breaker outputs. No access to earth bar without breaking seal, which is same problem as rod install.
Thanks though, would have been elegant if it worked here.
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