Technical Buildings

Our Holtab Modular Indoor Concept (HMIC) is a prefabricated and cost-effective solution for technical and switchgear buildings. The stations are constructed, manufactured and inspected at our factory prior to delivery.

Prefabricated construction

All installation takes place in a safe, controlled environment – we deliver as close to a plug-and-play solution as you can get.

Rugged construction and design

The building is constructed of high-quality building elements without organic material, to ensure a long service life. The station meets the industry requirements for insulation, fire resistance, corrosion resistance and safety class.

Flexible concept

There is a wide range of standard dimensions to choose from, but the station can also be totally adapted to your requirements. The concept is based on 1.2 meter modules and the building can be fitted out using many different options.

HMIC – Holtab Modular Indoor Concept

You have great flexibility to adapt the station according to your preferences and requirements. The building can be equipped with a variety of standard options such as doors, stairs, entrance roofs, climate control, ventilation, recessed junction boxes, cable ladders, mounting plates for heavy equipment, anti-static floor mats, and more.

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Technical house with metal foundation and quickly insulated floor

Insulated building with fast insulated floor on sheet foundation. Placement on terminal block.

  • Customisable

    Solutions customised to requirements.

  • Plug and play

    Minimises installation time on site.

  • Modular and scalable

    The building can be equipped as required.

  • Fire ratings

    BR3, EI60/REI20 (std) REI45 (opt).

  • High energy efficiency

    Energy-efficient sandwich panels meet the requirements for insulation, Um=0.29W/m2oC.

  • According to standard

    Meets applicable standards based on specific requirements.

Product data

  • Length

    3.95–13.55 metres

  • Width

    2.97, 3.32 or 3.7 metres

  • Inside height

    2.7 metres

  • Roof

    5° pitch

  • U-value

    0.29 W/m2oC

  • Fire rating

    Standard EI60, REI20, REI45 option

  • Protection code

    Up to 2 according to SSF 200

  • Corrosion environmental class

    C4 for 40 years

  • IP-protection class

    IP23D

  • External load

    Snow zone 4.5
    Wind 27 m/s

  • Internal load

    Floor 400 kg/sqm
    Wall and ceiling TBD

Examples of optional extras

  • Colour
  • Door type and position
  • Stairs and entrance ceiling
  • Water drainage (gutters)
  • Antistatic mat
  • Fire and protection class
  • Partition walls
  • Skirting package
  • Plinths
  • Lightning conductor

Customisation

  • Other dimensions
  • Docking (by agreement)
  • Window
  • HVAC

Example of solutions

We have extensive experience in power transmission products and have delivered many different types of solutions to our customers. Some with more standardised component choices and others entirely customised to the customer’s needs and wishes.

The prefabricated plant for 10 kV contains:

  • Holtab technical building, using HMICP
  • Schneider H3000, 12 kV switchgear
  • Control system, control cabinet incl. LS system
  • 400 V system with measurement

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The prefabricated plant for 24/12 kV contains:

  • 2 docked Holtab technical buildings of type HMICC 1355XH
  • ABB Unigear ZS1 primary switchgear 12 kV and primary switchgear 24 kV
  • Control cabinet for the control system
  • Fire alarms
  • LS system 110 VDC
  • VHC 400 VAC with automatic switching

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The prefabricated plant for 60/20 kV contains:

  • Holtab technical building, using HMIC
  • Schneider 72.5 kV GIS switchgear, using the WI series
  • Schneider 24 kV switchgear, using Pix
  • Control cabinet containing 230 VAC UPS, PLC
  • 400 V system with measurement

How we developed the station – watch film →

Picture gallery

Knowledge and inspiration