Prevention and Safety

Risk situations

• Use of machinery and cranes: The higher it rises, the higher the risk of hitting a power line. Respect the safety distances and avoid accidents. 
• Cutting down trees: Cutting down a tree can damage a power line. Always check that the tree or branches don't hit anything when they fall.
• Scaffolding or work on roofs: When erecting scaffolding or carrying out work on scaffolding or roofs, keep a safe distance from power lines.

What precautions you should take:

• Comply with E-REDES recommendations regarding the distances to be maintained between the line conductors and any component of the crane or load:
   
  • 3 meters, for voltage lines up to 60 kV.
  • 5 meters, for voltage lines above 60 kV.
     
• Wherever possible, fit limit switches to moving parts whose movement could cause the machine or load to enter the forbidden area delimited by the distances mentioned above.
   
• In the case of machines in occasional transit under the line, with the boom down, unladen and always under the supervision of a foreman, the following minimum distances can be accepted:
   
  • 1.5 meters for voltage lines below 60 kV.
  • 3 meters for voltage lines between 60 kV and 220 kV.
     
• In the case of frequent crossings, the maximum height should be preventively marked.
   
• Any conductor in an electrical line must be considered to be live at all times, unless there is a written indication from an E-REDES representative confirming that its conductors have no voltage and have been earthed.
   
• Regardless of this indication, whenever a line not live, to be considered as such, its conductors must be earthed close to the work site.