AVOIDING HAZARDS DUE TO STEP AND TOUCH VOLTAGES

Even if a lightning protection system is perfectly installed, still there is a danger for people staying in the surrounding area when lightning strikes it: step and touch voltages. 

Even if a lightning protection system is perfectly installed, still there is a danger for people staying in the surrounding area when lightning strikes it: step and touch voltages. 

 Step voltage is the existing difference of potential between both feet, which may be very high if lightning current is dispersing and there is no isolation on the ground. 

Touch voltage appears if a person touches the down conductor when lightning current is circulating. 

In both cases, part of the lightning current will pass through the person thus causing damages by electric chock. Aplicaciones Tecnológicas, S.A. provides earth meshes and cross-linked polyethylene guard tubes as prescribed in the most recent standards for avoiding these hazards