Originally Posted by focusv8

Several things;

Don't pull an earth spike out or disconnect the earth while the supply is switched on, you remove the protection for the installation and risk persons being harmed. (but you know that).

Don't pull an earth spike out and move it UNLESS you have the equipment to test it BEFORE it's connected up and the supply re-instated.

Is the split load board part RCD or twin RCD?
If part then the unprotected part could have high live to earth leakage.
If twin you could still have 58milliamp to earth and not trip either RCD.

Even if the whole installation is 30ma RCD protected, you can still get a shock, whether between the wiring earth and spike (as you did) as it's after the RCD, or between wiring and a person within the protection of the RCD.
29milliamp HURTS won't trip the RCD, but shouldn't kill you.
It's unusual nowadays to have no leakage to earth.

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