Construction Cranes EM Induction

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SUMMARY

Construction cranes can experience induced currents due to electromagnetic radiation from antennas located several kilometers away. This phenomenon occurs because cranes act as long antennas that resonate at specific frequencies, leading to the induction of small currents. The discussion highlights a lack of comprehensive studies or baselines on this topic, despite a basic understanding of antenna theory and reradiation. Participants seek definitive explanations and guidance on the mechanisms behind these induced currents.

PREREQUISITES
  • Antenna theory
  • Electromagnetic induction principles
  • Understanding of electrical currents
  • Basic knowledge of construction crane operations
NEXT STEPS
  • Research electromagnetic induction in cranes
  • Study antenna theory and its applications in construction
  • Explore the effects of electromagnetic fields on machinery
  • Investigate existing studies on induced currents in industrial equipment
USEFUL FOR

Electrical engineers, construction safety professionals, and anyone involved in the operation or maintenance of construction cranes who seeks to understand the impact of electromagnetic fields on machinery.

SafetyConsult
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Can anyone explain why cranes in construction sometimes experience induced currents from antennas radiating from distances of up to several Kilometers.

I have looked into the phenomenon several times, and have not been able to find a study or baselines to follow. I have a basic understanding of how it happens (antenna theory and reradiation), but not a solid proof. Can anyone point me on the right direction.
 
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SafetyConsult said:
Can anyone explain why cranes in construction sometimes experience induced currents from antennas radiating from distances of up to several Kilometers.

I have looked into the phenomenon several times, and have not been able to find a study or baselines to follow. I have a basic understanding of how it happens (antenna theory and reradiation), but not a solid proof. Can anyone point me on the right direction.

What does it mean to "experience induced currents" ?
A crane could be thought as a long antenna resonating at certain frequencies, but the currents are indeed really small.

Even my body now is experiencing some induced currents due to 50Hz currents circulating in the cables.
 

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