Fire Prevention Part III
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Fire Prevention Smoke exhaust systems Part III – 03/2007 1000 Standard time temp. curve Temperature increase inside the furnace 20 25 30 40 50 60 70 open/close Time since the start of the test [min]

Contents illustrated in photos Smoke exhaust systems System differences / installation guidelines Classification and requirements for smoke control dampers Control of smoke exhaust systems and planning guidelines for smoke detectors RKU-90/Z-78.2-12 smoke control damper RKU-90-KL/Z-78.3-78 smoke control damper for the additional usage in ventilation mode RKI-90/ Z-78.2-11 smoke control damper RKI-90-KL smoke control damper for the additional usage in ventilation mode RKE/Z-78.2-47 smoke control damper RKE-KL smoke control damper for the additional usage in ventilation mode Smoke extraction...

Contents illustrated in photos RKU-90/Z-78.2-12 RKU-90-KL/Z-78.3-78 See page 10 to 31 Fire resistance class EK-90/fire resistance time of 90 min. Functional endurance of 60 min. at 600 °C or 120 min. at 400 °C within smoke extraction ducts of sheet steel RKI-90/Z-78.2-11 RKI-90-KL ( the test certificate has been applied for) Fire resistance class EK-90 within smoke extraction ducts with a fire resistance time of 90 min. Functional endurance of 120 min. at 600 °C within smoke extraction ducts of sheet steel L90/P-TUM-405/P-TUM-406 smoke extraction duct Smoke extraction duct of sheet...

Natural and mechanical smoke extraction General information Smoke exhaust zone, separated by smoke curtains Natural smoke and heat exhaust vent Air inlet opening or wake max. 3 m/s (recommended 1,5 m/s) (symbol ) Smoke curtain Smoke exhaust ventilator RKE smoke control damper (uninsulated) 400 °C temperature stress at 400 °C for 120 min. or 600 °C for 60 min. Smoke exhaust systems Fire zone, e.g. hall Smoke extraction duct (uninsulated) 600 °C temperature stress for 120 min. Natural smoke exhaust system with smoke and heat exhaust vents Drawing of a common fire compartment (hall) with...

Smoke exhaust system example with several fire zones lying one upon the other or next to each 1 Separate fire or smoke exhaust zones, e.g. halls or stores 2 Smoke exhaust zones within separated fire zones or separated by smoke curtains 4* Air inlet opening or wake max. 3 m/s (recommended 1,5 m/s) (symbol *) 6 Smoke exhaust ventilator 7 RKE smoke control damper (uninsulated) 8 Smoke extraction duct (uninsulated) 9 Fire resistant smoke extraction duct (e.g. WAKOFIX-F L90), tested in accordance with DIN 4102-4 and DIN 18232-6 (pre-standard) with fire resistance class L90 (test temperature:...

The test certificate requires that smoke control dampers are only used for the extraction of smoke by means of smoke exhaust systems and for the inlet of supply air for smoke exhaust systems. System differences Smoke exhaust systems In principle, smoke control dampers are fitted with electric motors that are L90-enclosed. The specified manual release for opening and closing the smoke control damper within the scenario shall be guaranteed by a manual switch (by the installer). The smoke control damper motors, smoke detectors and smoke control dampers are connected to the controller, as...

Requirements for smoke control dampers, tested in accordance with the principles of testing (edition July 1998), pursuant to DIN 18232-6 (pre-standard of October 1997) and fire resistance time of 90 min. in accordance with DIN 4102-6. Classification and requirements of smoke control dampers with test certificate Classification of smoke control dampers for mechanical smoke extraction There are three different types: General The components of smoke control dampers shall essentially consist of class A building materials in accordance with DIN 4102-1 The clear dimensions of smoke control...

Actuating and evaluating unit Optical smoke detector Manual alarm box Actuating and evaluating unit Optical smoke detector with service alarm Type: ST-P-DA-STB EKS actuating and evaluating unit 24 V– and smoke exhaust ventilators with a working voltage of 230 V– and 400 V– (separate power element). The smoke detector signals the following: For the control of smoke exhaust ventilators and smoke control dampers with test certificate for individual or several smoke zones and fire compartments. The EKS activating and evaluating unit shall reliably and immediately put the smoke exhaust systems...

The drawings (example) suits EKS for two smoke control dampers EKS control for smoke exhaust systems Activating and evaluating unit Basic unit, one smoke zone, two smoke control dampers Individual planning according to the construction and function of the smoke exhaust system on request. EKS allocation scheme (example) Manual alarm box Yellow Manual switch CLOSED OPEN S centre Smoke detector Technical data Smoke detector suppy Wall housing of sheet steel Cable lead: Via bolted PG joint with traction relief, optionally at the top or at the bottom Another smoke detector Damper drive 1 Damper...

Technical data Functioning principle: Optical smoke detector with service alarm Type: ST-P-DA-STB Please note: Only to be used in combination with the EKS (SLC) Scattered light (Tyndall effect) Test as in EN-54/7: LPCB (Great Britain) Smoke signal part: VdS G298064 Working voltage: 16 – 30 V DC Working current: ca. 0,04 mA Service alarm current: ca. 13 mA Alarm current: ca. 55 mA Operating temperature: -10 °C to +50 °C Maximum humidity: 99 % rF Detector housing: White polycarbonate with a grille against insects Base: White polycarbonate Weight: ca. 180 kg Service alarm display: Green LED...

Manual alarm box monitored for cable break and short circuit Type: DKM Technical data The control of mechanical smoke ventilation systems with/without smoke control dampers »Smoke control damper open« »Smoke exhaust ventilator on« Button unlocked: Button pressed: Length = 125 mm Width = 125 mm Height = 34 mm Green LED »operating lamp« Red LED »smoke alarm« Yellow LED »collective fault« Working voltage: Unblocking potential: 24 V AC/DC Current on contact: Releasing resistance: 1,5 kΩ Terminal resistance: 1 kΩ Terminal S1: Cable inlet at the top M 20 x 1,5 and at the bottom: Installation:...