TT Earthing question// Volt drop

[La Poste]

Greetings.
I have a question, this has been puzzling me for a while.
If a put an earth rod in the ground and use it as my main earthing method and measure the resistance I find it to be 160 Ohms.
Ok, Assume there are no RCD's and a link is made between the phase/line and earth at the distribution board, a fault current would flow of 230/160 = 1.44Amps.
This would not blow any circuit breakers and effectively this fault current would flow to earth indefinitely.
Now assume the building is equipotentially bonded and so all metalwork is bonded together. Disregard parallel paths, assume we have plastic pipes for water and gas.
What sort of voltage would I get if I touched the metalwork in the house assuming my feet were wet and placed on the ground?
Is it a simple or complex mathematical equation?
The reason I am asking is because my friend lives in Asia and has an earth rod with no RCD protection at all and I am trying to work out the worse case scenario.
Any thoughts would be appreciated.
Thanks.

 

[pushrod]

my calc. is based on the 160ohms ( rod ) and the 1000 ohms ( body ) being in parallel. this would result in a current through the rod of 1.43A, and a current through the body of 0.24A, ( using ohms law and kirchoff's ). if you can find fault with that, please do so. this is just my take on it, might be wrong.

Actually yeah you are right that somebody getting a shock would be in parallel, because the earth path is already there! I humbly do doth my cap to you sir. I got 230mA ish but what is 10 mA between friends

 

[La Poste]

Well I was going to assume a voltage of 230V and a shock path from hand to foot.
I would put the human body as 500 Ohms just to be on the safe side.
I mean lets assume a fatal current is 30ma, judging by the regulations in this country.
So as long as I can get a figure below that at a voltage of 230V with a resistance of 500 Ohms I will assume it will be safe.
Well. a lot safer than it is at the moment.
Any thoughts?

 

[telectrix]

too many variables to calculate. need to do a real test with a couple of horses. rig 'em up with a clamp meter and get the barby ready.