Cable and installation duct
Cable and installation ducts: solutions, components, and information
Rigips cable and installation ducts ensure safe and economical fire protection for cable systems and the surrounding rooms.
Drywall installation ducts from RIGIPS
Cable installations are not simply left unprotected under the ceiling but are usually housed in cable ducts or installation ducts. These can be implemented economically, flexibly, and effectively with drywall solutions. The Rigips system also meets the special requirements for fire protection.
What types of duct constructions are there?
From the perspective of structural fire protection, there are two types of duct constructions:
- Installation ducts
- Cable ducts for maintaining functionality
In principle, almost all cable coverings are flammable, so fire protection measures must be taken depending on the protection goal: Should the installation be protected from fire to maintain essential functions for as long as possible during a fire, or should the surrounding rooms be protected from a potential cable fire? In both cases, the construction of horizontal ducts, held by suspension systems over support rails, has proven to be a safe and economical solution. Our cable and installation ducts with metal support rails have been reliable for this purpose for years.
How do cable ducts differ from installation ducts in drywall construction?
Our cable ducts made from the special fire protection board Glasroc F of type GM-FH2, a fleece-reinforced gypsum board according to EN 15283-1, protect against the effects of fire from the outside to the inside for a specific period and ensure the functionality of a cable system. This ensures that operational systems, controls, alarm systems, lighting, and fire extinguishing systems remain functional even in the event of a fire.
Our installation ducts made from the special fire protection board Glasroc F of type GM-FH2, a fleece-reinforced gypsum board according to EN 15283-1, protect against fire transmission (spread) from the inside to the outside for a specific period. This reliably protects the surroundings, such as adjacent rooms, corridors, or escape routes, from the effects of fire (e.g., cable fire). The fire exposure of the duct occurs from the inside, with the duct enclosing the fire.
Information on the functionality and testing of cable and installation ducts
The testing of cable ducts for maintaining functionality is carried out according to DIN 4102-12. Here, the duct is exposed to fire from the outside. Assessment criteria include preventing cable short circuits or conductor breaks. The functionality class is denoted by the abbreviation E.
Since the fire exposure occurs externally, the suspension system must be designed for fire protection.
The testing of installation ducts is carried out according to DIN 4102-11. Here, the duct is exposed to fire from the inside. Assessment criteria include room closure and temperature criteria. The fire resistance class is denoted by the abbreviation I.
With regard to various regulations, numerous test certificates document the flawless functionality of our installation ducts and cable ducts made from Glasroc F. When planning and executing our installation and cable ducts, ensure compliance with the requirements of the corresponding applicability certificate.
Construction of Rigips duct systems
Our drywall cable ducts can be constructed with fixed or loose covers. If you anticipate the need to add cables later, we recommend a loose cover. The same applies to our installation ducts.
For both installation and cable ducts, the high strength of Glasroc F allows the end-to-end connection of the boards with clips and screws, eliminating the need for substructures.
The advantages at a glance:
- Easy installation and short construction times
- Moisture-resistant cladding with Glasroc F (Type H2)
- Perfect surfaces
- Safety through tested systems
- Reliable planning and execution with detailed solutions
- Low duct weights
- Construction with loose or fixed covers
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