Electrocution in rain flooded streets

[morrobay]

There have been two recent reports of people being electrocuted while walking in a rain flooded street that is continuous with a submerged power cable: Queens, New York and Pattaya,Thailand .
Can someone explain quantitativly and in form, the underwater electric field and current path dimensions in a situation like this that would cause electrocution ?

 

[dlgoff]

When you have a power line on the ground, for example, you can get what's call ground potential rise.

The potential gradient (drop of voltage with distance) may be so high that a person could be injured due to the voltage developed between two feet...

http://en.wikipedia.org/wiki/Earth_Potential_Rise"

Now if the line is in water, you would get a "3 dimensional" potential rise through the water.

Regards

 

[oswaler]

I am deeply concerned about the recent reports of electrocution in rain flooded streets in both Queens, New York and Pattaya, Thailand. It is important to understand the underlying factors that contribute to these incidents in order to prevent them from happening in the future.

In this situation, the presence of a submerged power cable is a key factor. When water floods the streets and comes into contact with the power cable, it creates an electric field. This electric field can extend a significant distance from the cable, depending on the voltage and current flowing through it.

The dimensions of the electric field and current path in this situation can vary depending on several factors, including the type and thickness of the power cable, the voltage and current levels, and the conductivity of the surrounding water. However, in general, the electric field can extend several feet from the cable and the current path can also spread out in a circular or elliptical shape, potentially covering a large area.

When a person comes into contact with this electric field or current path, they can experience an electric shock, which can lead to electrocution if the voltage and current levels are high enough. The severity of the shock and the risk of electrocution depend on several factors, including the conductivity of the water and the resistance of the person's body.

In order to prevent these incidents from occurring, it is important for power companies to properly maintain and protect their power cables, especially in areas prone to flooding. Additionally, individuals should avoid walking or driving in flooded areas, especially if they see power cables or other electrical equipment submerged in the water.

In conclusion, the dimensions of the electric field and current path in a situation like this can vary, but they can extend a significant distance from a submerged power cable and pose a serious risk of electrocution. It is important for both power companies and individuals to take necessary precautions to prevent these incidents from happening in the future.