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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“

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Presentation on theme: "© Minimax 2013 XXX v. 1.0 Fire Sprinkler International 2014 Name: Andreas Teckenburg London, 20. May 2014 Fire Protection Solutions for Transformers „TrafoProtect“"— Presentation transcript:

1 © 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

2 © Minimax 2013 XXX v Initial Situation 2.Goal setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36

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

4 © Minimax 2013 XXX v. 1.0 Different Guidelines/ Rules 1) Initial Situation  European Approach:  VdS 2109 VdS-Richtlinien für Sprühwasser-Löschanlagen, Planung und Einbau  TS 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

5 © Minimax 2013 XXX v. 1.0 Different design parameters 1) Initial Situation national / international VdS 2109 (12.4):  Water application: 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 Schaumlöschanlagen:  Protection of tansformers with medium foam. No designing. FM DS 5-04:  In rooms ( ) with sprinkler at 15 mm/min or FM-approved „Machine protective system“. 12 von 36

6 © Minimax 2013 XXX v Initial Situation 2.Goal Setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36

7 © Minimax 2013 XXX v ) 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

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

9 © Minimax 2013 XXX v Initial Situation 2.Goal Setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36

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)

11 © Minimax 2013 XXX v ) Trials Experimental assembly in the fire tunnel at DMT, Dortmund

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

13 © Minimax 2013 XXX v ) Trials Impressions of the fire tests

14 © Minimax 2013 XXX v Initial Situation 2.Goal Setting 3.Trials 4.Fire Extinguishing Concept TrafoProtect Agenda 9 von 36

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 Eignungsbestätigung  Water application with safety factor is lower than according to the guideline

16 © Minimax 2013 XXX v ) 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

17 © Minimax 2013 XXX v. 1.0 Thank you for your attention! Andreas Teckenburg Division Energy


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