Fire-resistant cable installation - Above ... - OBO Bettermann

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Safe as housesOBO fire protection in false ceilings2 BSS
We have thought of everything – because there can be no weak links in the fire protection chainOBO has been producing fire protection systems for electrical installations for many years. In accordance with the requirements ofstatutory regulations and legal provisions, all systems have been tested and approved to applicable fire protection standards. Assafety is becoming an ever more prevalent issue, legislators are continuing the now familiar trend of setting out more and morespecifications for fire protection. The validity of these specifications extends to electrical installations, and proof of such compliancemust be provided. Options for fire-resistant cable installation above suspended fire protection ceilings do of course also fallwithin the scope of such specifications.MLAR (guidelines for the fire protectionrequirements to be met bycable systems in Germany)The latest version of MLAR, publishedin March 2000, has been adopted incurrently enforceable construction lawin all German states.This has led to the introduction of anumber of important changes affectingelectrical installations. With fewexceptions, open cable installationsmay no longer be used in escape routesand emergency exits.Options for cable installation in escaperoutes and emergency exitsIn escape routes and emergency exits,electrical lines must be installed as follows:· Individually, fully embedded in plasteror in wall channels covered with a layerof plaster· In fire protection ducts, e.g. OBO BSK· Above suspended ceilingsRequirements to be met wheninstalling cables in false ceilingsSuspended fire protection ceilings, testedand approved for fire loads fromabove, ensure that false ceilings are protectedagainst fire. In the event of thecables installed catching fire, escaperoutes and emergency exits can still beused.However, it must be ensured that theceiling does not become subject toadditional mechanical load in the eventof fire. In the event of fire in a false ceiling,the latter must not come down orbow. This requirement is also applicableto all other installations, e.g. sanitary services,ventilation.Options for cable installation infalse ceilingsIn principle, there are two methods forinstalling cables in false ceilings:· Function maintenance installation systemsto DIN 4102 Part 12· Installation systems tested and approvedspecifically for this type of applicationIf function maintenance systems are usedin conjunction with standard insulatedcables and lines, all installation parametersmust remain unaffected, in order toavoid invalidating test certificates provingcompliance. However, these installationparameters are not entirely satisfactoryfor cable installation in practice.Tested and approved installationoptions by OBO BettermannOBO Bettermann has carried out firetesting based on the requirements ofDIN 4102 in order to make possiblepractical options for cable installation infalse ceilings.The following solutions have been testedand approved:· Wall-mounting and ceiling-mountingcable support systems· Type 2031 M/15 and type 2031 M/30grouped support for wall and ceilingmounting· Type 2023 M and type 2034 M metalpressure clips for ceiling mountingBSS3
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Fire-resistant cable installation - Above ... - OBO Bettermann

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