MediaWiki:Eig-ch-menu-F

Chapter F

Protection against electric shocks and electrical fires

• Protection against electric shock
• Types of protection against electric shock
• Additional protection: High sensitivity RCDs
• Implementation of the TT system
  • TT system - Principle
  • TT system - Practical aspects
• Implementation of the TN system
  • TN system - Principle
  • TN system - Preliminary conditions
  • TN system - Earth-fault current calculation
  • TN system - High fault current-loop impedance
• Implementation of the IT system
  • IT system - Principle
  • IT system - Fault protection
  • IT system - Implementation of protections
  • IT system - Practical aspects
• Residual Current Devices (RCDs)
  • Description of RCDs
  • Form factors of RCDs
  • Types of RCDs
  • Sensitivity of RCDs to disturbances
  • Coordination of residual current protective devices
  • RCDs selection in presence of DC earth leakage currents
• Other protective measures against electric shocks
  • Extra Low Voltage (ELV)
  • The electrical separation of circuits
  • Class II equipment
  • Out-of-arm’s reach or interposition of obstacles
• Protection against electrical fire risks
  • Protection against fire due to insulation failure
  • Protection against final circuits arc faults in conductors and connections (AFDD)
  • Protection against arc flash (assembly internal arc faults)
  • State-of-the-art solutions for electrical fire prevention, beyond the standards
  • Protection against electrical fire risks - synthesis

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