Trans-Rite Aviation – Mobile Static Bonding System for Aircraft Fuelling Vehicles

Manufacturer: Newson Gale Ltd

Applications:

During aircraft refuelling operations, the refuelling vehicle should always be bonded to the aircraft by a cable designed for this specific purpose. In addition, a dead man's control is required, i.e. a switch that cuts off the flow of fuel to an aircraft in case of a problem (see NFPA 407).

The Trans-Rite AVIATION successfully addresses these two issues in a single intrinsically safe bond connection monitoring system, mounted in the cab of the refuelling vehicle. The system incorporates a bond-monitoring cable reel and ALS-10A-IP aircraft clamp to both equalize the potential between refuelling equipment and the aircraft and to continuously monitor the integrity of the bond. Additionally, the dead man's switch is incorporated into intrinsically safe circuitry, avoiding the need for a separate system.

Specifications:

• ATEX certificate: Ex II (1) GD [EEx ia] IIC
• Power supply: 24 V DC, nominal, via vehicle battery
• Monitoring set point: normally set to 10 Ω
• Output contacts:
  • dipolar, dual position
  • 250V:5A:500VA (~);
  • 250V:5A:500VA (-) max. resistive
  • for connection to vehicle pump or valve.