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Case Study: Telehouse Data Centre

WAGNER Fire Prevention Protects Telehouse Data Centre in Frankfurt

Data centre operator and colocation provider Telehouse in Frankfurt has the highest of security requirements to make sure countless transactions of cloud providers, online providers, travel agencies, insurance companies etc. remain in operation, even in the event of a fire. This means interruptions to data availability due to power cuts as the result of a fire have to be avoided. WAGNER developed an innovative, custom fire prevention concept for Telehouse to meet these needs.

Innovative Fire Prevention Concept Protects Data at the IT Centre 24/7

About the project

A separate building was planned for the data centre’s technical infrastructure in 2016. This technology building is connected to the existing building and its IT area via two intermediate storeys (with volumes of 730 and 1,700 m³). Telehouse commissioned the WAGNER Group to build a fire detection and extinguishing system in the intermediate storeys that would meet their requirements and protection objectives.

About the customer

Telehouse operates 46 of its own data centres worldwide. The company offers IT & telecommunications services related to cloud computing, colocation, system integration and connectivity.

Protection goals

  • Accessibility
    Free to access for maintenance, repairs and searching for the cause in the event a fire is detected.
  • Energy supply
    Energy supply remains on in case of a fire.
  • 24/7 fire prevention
    Same level of fire prevention at all times, systems remain on even during maintenance, for example.
  • No malfunctions
    High fire detection false alarm immunity.

Risk analysis

  • Large amount of electricy
    The data centre uses as much electricity as a small town with 30,000 inhabitants.
  • Supply shafts
    The supply lines for air conditioning and power supply essential for operation run through the building’s two intermediate storeys.
  • Electrical equipment
    By its nature, a high number of electrical and climate-control components and therefore an increased risk of smouldering cable fires.
  • Power interruption
    The data centre uses as much electricity as a small town with 30,000 inhabitants.

A Powerful Combination: Gas Extinguishing with Oxygen Reduction

The two-stage concept combines traditional gas extinguishing technology with oxygen reduction and earliest possible fire detection to create an intelligent fire prevention solution with maximum safety.

If the highly sensitive TITANUS® air sampling smoke detectors detect a fire in the earliest stages, the oxygen level is reduced first of all from 20.9 vol% to 17 vol% by gently introducing nitrogen from stored pressurized vessels. Reducing the oxygen concentration significantly impairs the development of the fire meaning that ideally the fire is already put out at this stage. An OxyReduct® P-Line then maintains the lowered oxygen level of 17 vol% for as long as necessary by generating nitrogen on site. This means that Telehouse employees can look for the cause of the fire and remove it thanks to the freely accessible protected area.

If the TITANUS® devices still detect a fire, the oxygen concentration is lowered again; this time to 13.8 vol%. Even at this oxygen level, Telehouse employees can still access the protected area to eliminate the cause of the fire. The OxyReduct® P-Line maintains this level for as long as necessary.

Strong Connection: Gas Extinguishing with Oxygen Reduction

Yet another feature of the fire prevention system is on-site refilling with N2Fill: In future, empty extinguishing agent cylinders can be refilled right on site. The nitrogen generator (P-Line) is used for this, which generates the required inert gas with maximum purity from the ambient air and fills it into the emptied gas extinguishing cylinders via a high-pressure compressor.


Customer benefits

  • Availability
    Servers are available around-the-clock, even in an emergency; no power cuts required.
  • Safe
    Reliable fire protection system that prevents fires and their effects by combining early detection and oxygen reduction.
  • Simple
    Nitrogen is extracted directly from the air in the room for extinguishing and to refill the extinguishing cylinders.
  • Environmentally friendly
    No disposal of fire residues and extinguishing agent.
  • User-friendly
    No damage due to the extinguishing agent; the protected areas are safe to access by employees and external service.

Kundennutzen beim Referenzkunden Telehouse

Customer Testimonial

Asko Hamberger, Safety & Security Management, Telehouse GmbH

It is therefore extremely important that we keep our customer servers in operation 24/7. And individual fire prevention is a major part of this.

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