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Protective Equipotential Bonding

Equipotential bonding EPB describes the process of electrically connecting metalwork and conductive elements of a building to ensure equal potential voltage throughout the application. This ensures that in the event of a nearby lightning strike, potentially hazardous sparking or flashover of the current to conductive parts such as metal pipes, earthing and cables within the structure is avoided, thus reducint the risk of damage to equipment and personal injury.

This range of Equipotential bonding devices are designed for use where the distribution wiring enters the building, to incoming services and earthing systems that cannot be directly bonded to earth during normal operation.

  • Rated DC Sparkover @100V/s 350V
  • Impulse Sparkover @ 1000Vμs ,900V
  • Impulse Discharge Current 10/350μs 10kA
  • Impulse Discharge Current 8/20μs 100kA
  • Impulse Life 500A, 10/1000 μs, >400 Operations

TEC/350/100 - designed for the equipotential bonding of earthing systems that cannot be directly connected under normal conditions. During normal operation the device is effectively open circuit, maintaining isolation between the two earth systems. During fault conditions that generate a large enough potential between the two earth systems, the device switches to a short circuit condition, connecting the two for the duration of the fault before automatically re-setting to an open circuit state.

  • High Power GDT
  • Minimum life of 100,000 hours
  • IP66 Rated for Outdoor or Indoor Use
  • Max Discharge Current 8/20μs 100kA
  • Rated Withstand UWDC 350V, UWAC 285V

EPG/100/250 & EPG/100/250S - High power isolating Gas Discharge Tubes (GDT), for equipotential bonding of structures or components that cannot be directly bonded to earth during normal operation. In the event of a potential difference, the GDT breaks over and connects the parts for the duration of the overvoltage, then returns to its high resistance state. IP66 rated for indoors and outdoors installation, or in damp or subterranean areas. For lightning protection equipotential bonding in accordance with EN 62305-3 and EN 62561-3.

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