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Minimax 2013 XXX v. 1.0 Fire Sprinkler International 2014 Name: Andreas Teckenburg London, 20. May 2014 Fire Protection Solutions for Transformers TrafoProtect by Minimax 8 von 36 Slide 2 Minimax 2013 XXX v. 1.0 1.Initial Situation 2.Goal setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36 Slide 3 Minimax 2013 XXX v. 1.0 The risk 1) Initial Situation Protective goals: Avoid damage to persons Reduce damage to environment Reduce business interruptions Protect material asset Avoid loss of image Obtain jobs Malfunction mechanisms of transformers: Mechanical load by forces of electrical shortage in windings Electrical load by transient excess voltage Mechanical defects of the load level switch Defect of a conduct Thermical or electrical aging of the isolators 10 von 36 Slide 4 Minimax 2013 XXX v. 1.0 Different Guidelines/ Rules 1) Initial Situation European Approach: VdS 2109 VdS-Richtlinien fr Sprhwasser-Lschanlagen, Planung und Einbau TS 14816 European technical Specification, Fixed fire fighting systems - Water spray systems - Design, installation and maintenance 10 von 36 US Approach: NFPA 15 Water Spray fixed systems for fire Protection NFPA 11 Low-, medium- and high Expansion foam system FM 4-1N Fixed water spray systems for fire protection FM 5-04 Transformers Slide 5 Minimax 2013 XXX v. 1.0 Different design parameters 1) Initial Situation national / international VdS 2109 (12.4): Water application: 15 - 30 mm/min Operating time: 5 min (Step-in-time of the fire department) NFPA 15 (7.4.4): Water application transformer and accessories: 10,2 mm/min Endangered terrain surface: 6,1 mm/min Operating time: As long as the exposition stops. NFPA 11 Schaumlschanlagen: Protection of tansformers with medium foam. No designing. FM DS 5-04: In rooms (2.2.1.2.2) with sprinkler at 15 mm/min or FM-approved Machine protective system. 12 von 36 Slide 6 Minimax 2013 XXX v. 1.0 1.Initial Situation 2.Goal Setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36 Slide 7 Minimax 2013 XXX v. 1.0 2) Goal Setting Creation of a protection concept valid and certified internationally which enables the economically priced fire protection of free-standing transforderms with preferably small design parameter. Protection of transformers; also for decentral substations (municipial utilities, etc.) Influence of wind ? If no sufficient water supply (amount, pressure) is existing (existence, new building) Protection of transformers with less extinguishing water. Mostly the transformer is the water determining component in the whole project. Reducing of contaminated extinguishing water. The Scope 11 von 36 Slide 8 Minimax 2013 XXX v. 1.0 Inspection and Certification of the Installation Engineering 2) Goal setting Course of the procedure: Collocation of information and requirements of the testing centers, but also the operators and insurer (e.g. HDI Gerling) Preparation of a test concept by DMT Set-up DMT / UL Execution of the tests at DMT Creation of the planning and installation instructions 12 von 36 Slide 9 Minimax 2013 XXX v. 1.0 1.Initial Situation 2.Goal Setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36 Slide 10 Minimax 2013 XXX v. 1.0 Experimental assembly in the fire tunnel at DMT, Dortmund 3) Trials Lateral view Topview T1 und 3 T2 T4 F3 F2 F1 T1 und T3 T2 T4 Wind direction Size of the Mock-up: 2,8 x 2,2 x 2,5 m (W x D x H) Slide 11 Minimax 2013 XXX v. 1.0 3) Trials Experimental assembly in the fire tunnel at DMT, Dortmund Slide 12 Minimax 2013 XXX v. 1.0 Fire tests and results (generic example) 3) Trials Trial goal: Fire suppression Puddle, Stream and spray fire under different conditions Nozzles installed on one side only in the trial; safety factor Nozzle pressure and water quantity were lower in the trials than in the specific design rule Slide 13 Minimax 2013 XXX v. 1.0 3) Trials Impressions of the fire tests Slide 14 Minimax 2013 XXX v. 1.0 1.Initial Situation 2.Goal Setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36 Slide 15 Minimax 2013 XXX v. 1.0 The Minimax Protection Concept 4) Fire Extinguishing Concept TrafoProtect Transformer is regarded as lost in case of fire Fire suppression / Fire control; no extinguishing necessary No special components; e.g. high- pressure water fog = stainless steel, filter, special fittings Certificates without size restriction, testing under influence of wind !! International: UL Verification Deutschland: DMT Eignungsbesttigung Water application with safety factor is lower than according to the guideline Slide 16 Minimax 2013 XXX v. 1.0 4) Fire Extinguishing Concept TrafoProtect Approval and Certification Components are all UL listed Trial results accepted by UL and DMT Specific planning and installation instructions checked an accepted by UL und DMT Slide 17 Minimax 2013 XXX v. 1.0 Thank you for your attention! Andreas Teckenburg Division Energy