DIN EN 50085-2-2 specifies the load requirements for underfloor systems in electrical installations. According to this standard, cassettes/service outlets may only bend by a maximum of 6 mm when subjected to a load. However, with harder floor coverings, such as stone or tiles, bending will lead to breakage. For this reason, OBO has increased its internal quality criteria and goes a step further with the OBO testing standard. The test results from the OBO BET Test Centre formed the basis for the development of the internal classification of heavy-duty classes SL1 and SL2. Products of heavy-duty class SL1 are suitable for loads of up to 10 kN, whilst products of heavy-duty class SL2 are even suitable for loads of up to 20 kN. This can prevent the breaking of hard and sensitive floor coverings such as stone or tiles.

All the device installation units for wet-care floors have a protection rating of at least IPX4 when closed to fulfil the requirements of EN 50085-2-2 without restriction. Device installation units with tube body also protect the electrical installation against the ingress of water when used. The tube body extends 10 mm beyond the top edge of the floor covering, offering protection against the ingress of water into the internal electrical installation.

The underfloor systems from OBO are intended for installation in floating screeds. Normally, there are requirements for the transmission of air and footfall sound, both for vertical sound transmission, i.e. from storey to storey, and for horizontal sound transmission (from adjacent rooms). As the underfloor systems are also run under partitions, the question of the influence of the system on noise transmission is of high relevance. For this reason, the air and noise transmission for the EÜK duct and OKA and OKB trunking systems and UDHOME floor boxes were evaluated in qualified tests with the MÜLLER-BBM testing institute in Planegg, Munich.

Underfloor systems

Q: Planning and selection of the correct underfloor system

The following floor structure requirements must be considered: Installation requirements Requirements from architectural construction planning Organisational requirements and user specifications Safety requirements Accordingly, the correct selection of the duct or trunking system is of key significance for technical planning. Besides personal project advice, the OBO service also includes the OBO Construct software, offering a fast, targeted planning tool for underfloor systems (www.obo-construct.com).

Q: Standards for underfloor systems

These can be divided into two categories: installation specifications and product standards. The installation engineer is primarily responsible for compliance with the erection specifications. The product standard EN 50085-2-2 specifies the testing criteria for underfloor systems. The OBO Bettermann underfloor systems meet this standard and are VDE-certified.

Q: Fire protection in underfloor systems

In Germany, the Master Cable Installation Guideline (MLAR) is significant for fire protection measures in cable systems and for underfloor systems. The Master System Floors Directive (MSys-BöR) applies additionally. According to the requirements in these standards, OBO Bettermann underfloor systems can be run in escape and rescue routes and through fire walls. In so doing, special requirements need to be taken into account in the installation and system selection.

From functionality to aesthetics

Underfloor systems provide installation space for power, data and multimedia connections in the floor structure. OBO offers underfloor systems for different building types and floor construction techniques, such as screed, raised floors, cavity floors and country-specific floor structures. Various solutions are available, depending on the application.

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Your advantages at a glance:

Proven over many years in office installations, refurbishments of old buildings, exhibition spaces and public buildings
For dry, moist and wet-care floor coverings

For the supply of power, data and multimedia technology from the centre of the room
up to 12 Modul 45® devices in one floor box.

Solutions with trunking systems

Underfloor systems

Service outlets (GES)

The proven solution for office installations with carpeted floors: The GES service outlets are available in plastic or metal and possess countless intelligent details such as cable routing clips, carpet protection frames and a locking lid closure.

Underfloor systems

Cassettes

The compact cassettes can be adjusted to be flush with the height of the raw floor and, in a special version, can also be used with noise decoupling. They are particularly suitable for floor coverings such as tiles or parquet. There are various versions for dry, moist and wet-care floor coverings.

Underfloor systems

Service outlets (GES)

Underfloor systems

Cassettes

Solutions with protective cable pipes

Underfloor systems

Round floor sockets (GES R2)

The GES R2 are made from die-cast zinc. Nickel, old copper, chrome and old brass are available as a surface finish. They can be integrated into a wide range of high-quality floor areas.

Underfloor systems

Floor sockets and floor boxes, square (UDHOME)

The UDHOME system can be mounted as a complete flush-mount unit, flush with any floor type.

Underfloor systems

Modul 45® devices

The Modul 45® series provides for maximum variety and flexibility in configuring underfloor systems with sockets and data and multimedia technology.

Underfloor systems

Round floor sockets (GES R2)

The GES R2 are made from die-cast zinc. Nickel, old copper, chrome and old brass are available as a surface finish. They can be integrated into a wide range of high-quality floor areas.

Underfloor systems

Floor sockets and floor boxes, square (UDHOME)

The UDHOME system can be mounted as a complete flush-mount unit, flush with any floor type.

Underfloor systems

Modul 45® devices

The Modul 45® series provides for maximum variety and flexibility in configuring underfloor systems with sockets and data and multimedia technology.

Properties of underfloor systems

Load

Wet care

Noise protection

Planning and selection of the correct underfloor system

Standards for underfloor systems

Fire protection in underfloor systems

Downloads

Brochure

Brochure for architects

PDF11.14 MB

Brochure

UDHOME Floor Socket and floor box - British Standard

PDF7.27 MB

Support

Service@OBO

Always at your service: We support your projects not only with innovative system solutions, but also with an extensive service offering throughout every planning and project phase.

Service@OBO

Always at your service: We support your projects not only with innovative system solutions, but also with an extensive service offering throughout every planning and project phase.

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