- The body has a natural defense system (skin). Dry skin resistance can be 100,000 ohms or more depending on several factors including skin thickness, dryness levels, calluses.
- Do whatever you can to raise your body's resistance.
- The key to survival is to decrease exposure.
- The typical body has a contact resistance of 500 ohms at the point of contact with the electrical source.
- The body has an internal resistance as low as 100 ohms.
- Water and perspiration (sweat and sodium chloride spell danger) can make a human body more conductive.
- Wet floors make this condition worse.
- Wet floors present slip, trip and fall hazards, as well.
- Good housekeeping has many benefits.
- Contact points with energized sources and the human body should be avoided.
- Electric current starts to break down the resistance of skin, increasing current exposure.
- Wearing jewelry and/or watches may increase the amount of current one's body is exposed to.
- Rings, watches and other jewelry might "catch" and cause injury.
- Some electricians place a hand in their pocket to help prevent current from traveling through the chest and heart.
Figure 1: Wet Floor Sign
Figure 2: Electrician with One Hand in Pocket