The document discusses the fundamental aspects of protection against electric shocks, including two protective measures - basic protection and fault protection. Basic protection aims to prevent access to dangerous live parts through insulation or barriers, while fault protection detects abnormalities and disconnects power through two lines of defense, such as devices or fuses, to prevent electric shock even if basic protection fails. The installation of electrical equipment must be compatible with the type of protection to ensure safety.

1. 
 


     


 
 
 
      
       
 


 

    
  
 

     

 
 
  
 
       

  




 
  

 
 
  
  
    

  
  
 
  
  

 
 
 
 

 
  
  
  
 
 
   

 
  

 
 
 
    

     
    


 
  

 
 



 
  
 
  


 

  
 
 

 
 





2. 
  

 
 

 
  
 
  
 
      
 

 

 


   
   
  




  

  
      




 
 



      




  

  


   
 
  
 
  

 


   
 
 

 

  

 

 
  
 
  

 
     

 

 
  
 
       

     

 


 
  
 
  

 
 
 



 