What is the cause of death from electric leakage in swimming pools?

Electricity will be introduced into the ground. It's just that after people fall into the water, part of the current passes through the human body.

When leakage occurs, the leaking object and the ground (pool water) are like the two poles of the power supply, and the human body is a part of the conductor. The potential difference between the leakage current and the ground is relatively large, which leads to excessive current passing through the human body, which is fatal. I use an extremely simplified case calculation: consider a spherical pool filled with water, radius. There is a spherical electrode in the center of the ball, and the electrode radius, potential and potential of the ball wall are zero. Considering the disinfectant in water, etc., the conductivity is assumed. From the current density, let the current flowing out of the electrode be 0, and the electric field intensity from the center of the sphere to the integral can be calculated, which can be solved in a list. Then, if the human body is located away from the electrode, the potential difference between the two ends of the human body is that the resistivity decreases obviously when the skin is wet, and corona is absolutely no problem. Of course, this model is too simplistic, but this is the principle.

The same will, the same principle. Although a pool may not be completely destroyed (as can be seen from the above calculation, the potential decreases relatively quickly), people near the leak site are still very dangerous.