I am putting these values here, which can be used to help guide future objectives in articles 210.8, 210.13, 250, 517, 555 and 680. (And also the foundational ground work to loop and source conduction theory)
Wet Location:
Touch Voltage
Body R ohms
milli amps
Max Time Seconds
25 volts or less
1075
23
10
50
925
54
0.48
75
825
91
0.30
100
800
125
0.22
125
762
164
0.17
220
700
314
0.05
300
575
521
0.025
Dry Location:
Touch Voltage
Body R ohms
milli amps
Max time seconds
50 volts or less
1725
29
10
75 volts
1625
46
0.6
100 volts
1600
62
0.4
125 volts
1562
80
0.33
220 volts
1500
147
0.18
300 volts
1460
205
0.12
400 volts
1425
280
0.07
500 volts
1400
350
0.04
Medical Locations- general patient area only- body probes, leads, or subcutaneous conductive objects not taken into account:
Anyway, further research and theoretical work needs to be done on body impedance while submerged in water and voltage gradients within water- fresh, salt, chlorine, lake, river, ect. This will be able to further give more precise values for automatic disconnection in articles 555 and 680, and also set a maximum impedance for equal potential bonding system design relative to their geometry and size.
