Hi all,
You often hear talk about what voltage will kill you...
It is not surprising that is you were immersed in water a LOT lower voltage would be needed to deliver a fatal current flow, but how MUCH of a lower voltage....
Read this and be shocked.... [you will be...]
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763825/table/T4/
Have a read of this too;
Measurements similar to those of Smoot and Bentel12 were done with approval of the institutional review board of University of Illinois in Urbana-Champaign. Metal plates were placed inside rubber containers. The metal plates were flat on the bottoms of the containers. A rubber mat with holes was placed on top of each metal plate. An (isolated) power source ground wire was connected to one plate, and a 60-Hz AC voltage from the power source was connected to the other plate. The subject stood with 1 foot on each rubber mat, as shown in Figure Figure5.5. Thus, the subject's contact with electric current was primarily through the water contacting the feet through the holes and also through water contacting the legs higher up. This foot-to-foot current path simulated the hand-to-hand and hand-to foot situations that can occur with swimmers in water. This setup minimized current flow through the chest. The study involved just 1 subject.
Figure 5
Measurement setup for voltage and current in water.
Fresh (not salt) water with conductivity of 320 µmho/cm filled each bucket to a level near the hip. It was found that electrically induced muscle contractions were greatly modified by leg position in the water.
Initial testing has shown that with 3.05 V (60-Hz AC rms) applied between the plates, a current of 8.65 mA flowed, resulting in involuntary flexion of the knee to 90°. This flexion could not be overcome with voluntary effort. The knee could be flexed further voluntarily, but it would not straighten beyond 90° of flexion. The involuntary keen flexion occurred when the leg was lifted (by hip flexion) so that the thigh was horizontal and the knee was at the water level. This is similar to the situation when one is swimming. Muscle control was gradually regained when the foot was lowered to the bottom of the bucket (by hip extension to the neutral position) and the leg became vertical. Total body resistance would be calculated as follows:
At 4.05 V, a current of 12.6 mA flowed. The knee was flexed to 135°, meaning that the heel was near the buttocks. This could not be overcome with voluntary effort. Again, this occurred when the leg was lifted so that the knee was at the water level, similar to the situation when one is swimming. Lesser impairment of muscle control was noted at other leg positions. Muscle control was gradually regained when the foot was lowered to the bottom of the bucket and the leg became vertical. The resistance would be 4.05 V/12.6 mA = 332 Ω
Read the entire article here...
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763825/
Last time i EVER go in an electric shower...... not interested in what bonding they got....
john....
You often hear talk about what voltage will kill you...
It is not surprising that is you were immersed in water a LOT lower voltage would be needed to deliver a fatal current flow, but how MUCH of a lower voltage....
Read this and be shocked.... [you will be...]
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763825/table/T4/
Have a read of this too;
Measurements similar to those of Smoot and Bentel12 were done with approval of the institutional review board of University of Illinois in Urbana-Champaign. Metal plates were placed inside rubber containers. The metal plates were flat on the bottoms of the containers. A rubber mat with holes was placed on top of each metal plate. An (isolated) power source ground wire was connected to one plate, and a 60-Hz AC voltage from the power source was connected to the other plate. The subject stood with 1 foot on each rubber mat, as shown in Figure Figure5.5. Thus, the subject's contact with electric current was primarily through the water contacting the feet through the holes and also through water contacting the legs higher up. This foot-to-foot current path simulated the hand-to-hand and hand-to foot situations that can occur with swimmers in water. This setup minimized current flow through the chest. The study involved just 1 subject.
Figure 5Measurement setup for voltage and current in water.
Fresh (not salt) water with conductivity of 320 µmho/cm filled each bucket to a level near the hip. It was found that electrically induced muscle contractions were greatly modified by leg position in the water.
Initial testing has shown that with 3.05 V (60-Hz AC rms) applied between the plates, a current of 8.65 mA flowed, resulting in involuntary flexion of the knee to 90°. This flexion could not be overcome with voluntary effort. The knee could be flexed further voluntarily, but it would not straighten beyond 90° of flexion. The involuntary keen flexion occurred when the leg was lifted (by hip flexion) so that the thigh was horizontal and the knee was at the water level. This is similar to the situation when one is swimming. Muscle control was gradually regained when the foot was lowered to the bottom of the bucket (by hip extension to the neutral position) and the leg became vertical. Total body resistance would be calculated as follows:
At 4.05 V, a current of 12.6 mA flowed. The knee was flexed to 135°, meaning that the heel was near the buttocks. This could not be overcome with voluntary effort. Again, this occurred when the leg was lifted so that the knee was at the water level, similar to the situation when one is swimming. Lesser impairment of muscle control was noted at other leg positions. Muscle control was gradually regained when the foot was lowered to the bottom of the bucket and the leg became vertical. The resistance would be 4.05 V/12.6 mA = 332 Ω
Read the entire article here...
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763825/
Last time i EVER go in an electric shower...... not interested in what bonding they got....
john....
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