Intermittent pressure-tight – products for tunnelling

When high-speed trains pass through railway tunnels, positive and negative pressure of up to +/- 10 kPa is created. This ‘alternating pressure’ leads to the ingress of dust if enclosures are not sufficiently stable and tight.
The safety regulations for the construction and operation of railway tunnels are particularly strict. In the new Gotthard Base Tunnel, at 57 kilometres the longest railway tunnel in the world, the requirements have been significantly increased once again. As passenger and goods trains pass through the tunnel at 250 km/h, there are enormous pressure and suction loads for all components used. Added to this are considerable temperature differences, high humidity and extreme dust exposure.
The swibox customised solutionsensure reliable functional integrity and protection of all electrical components: Air conditioning systems, high-density electrical enclosures and junction boxes. The swibox products fully passed the demanding tests in advance and now guarantee safe operation of the tunnel.

Darstellung des druckdichten Schrankes

P90 Enclosure G10 alternating pressure-tight

Dimensions and weights

  • Width 400 mm
  • Height 250 mm
  • Depth 140 mm
  • Mounting dimension width 450 mm
  • Mounting dimension height 150 mm
  • Weight 8.5 kg

General information

  • Areas of application: Connection of flue gas fans
  • Mounting type: Ceiling or wall
  • Areas: Road tunnels, railway tunnels, transport, process industry, shipbuilding
  • Operating temperature: min. -60 °C to max. 120 °C
  • Impact resistance: 10 J
  • Protection class: IP66
  • Protection class: I
  • Stainless steel 1.4571 in 2 mm
  • Functional class F400 in accordance with EN 12101
  • High-temperature-resistant seal as standard – increased temperature range -60°C to +100°C
  • Approved in accordance with EN 60670
  • Flexible mounting options for the internal mounting rail
  • IP protection of IP66 / IP69
  • IK protection of IK10
  • Laser-welded seams for increased quality
  • Pre-welded mounting feet guarantee optimum enclosure installation
  • Earthing straps as cover loss protection
  • Customised and fully assembled with terminals and screw fittings on request
Treibergehäuse für den Tunnelbau

Floor-standing and wall-mounted enclosure G10 alternating pressure-tight

  • Interchangeable pressure-tight housing system
  • Certified by RUAG up to ±10 kPa
  • Tightness proven at 200,000 cycles
  • Enclosure certified according to EN 62208
  • Stainless steel electrical enclosure
  • Alternatively sheet steel
  • Wide product range (free-standing and wall-mounted cabinets)
  • Customisable interior
  • Air conditioning with air conditioning unit possible
  • Installation on raised floor
  • Special enclosures possible
  • Simple assembly using assembly trolley
  • Test connection G½ for leak testing on the enclosure door

Air-conditioned free-standing cabinet with cabinet plinth for raised shelves

Wall cabinet with QS ventilation system

Air-conditioned free-standing cabinet with cabinet plinth for flat shelves

Wall cabinet with QS ventilation system

Escape route luminaires alternating pressure-tight

Escape route luminaires, also known as escape route luminaires, are the technical extension to regular escape signs. They show the way in an emergency and thus ensure the rapid evacuation of people.

Rettungsleuchten für Fluchtweg

Escape route signal mounted in the travel tube in front of QS

Escape route signal mounted in lane change

Escape route signal on central verge (e.g. when changing lanes)

Swivelling escape route signal for emergency stops and access tunnels

Changeover signal (prismatic turner) for emergency stops

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