Reason Magazin 2014Q3 Seite 36

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Further steps can be taken to mitigate the impairment caused by the loss of fire pumps Q Backfeed the sprinkler system from an alternative supply e g public hydrant system Connecting a hose from a convenient hydrant into the 2 inch 5 cm drain connection on a sprinkler valve set will provide some water for the sprinklers Q Install a fixed emergency connec tion between the public supply and the fire sprinkler system This is often best installed in the fire pump room This is normally closed but opened in situa tions when fire pumps are impaired e g pump failure or water tank cleaning Q Rent a diesel fire pump if fire pumps are to be out of service for an extended period This can be appropriate when diesel engines have failed and are off site for repair or to cover a gap be tween ordering and delivery of a new system Q Provide temporary water supplies dur ing repairs cleaning or replacement of water tanks How can protection be restored promptly Impairments frequently happen during busy periods Proper procedures will help to ensure that the protection is restored promptly Many improperly closed valves ICVs identified by engineers had been closed in good faith but without follow ing proper procedures This meant that the closed valve was simply forgotten Most property insurance companies will have a system for managing fire pro tection impairments and these are readily made available to their clients along with instructions on when and how they should be notified The FM Global Red Tag Per mit System is available in hard copy and through an online and smartphone Red eTag system Keep in mind that contractors are not based at your facility and may not have the THIS REALLY HAPPENED Here are a few real life loss examples from FM Global s own client loss database Values are for gross loss actual cost of property damage and lost business adjusted to 2010 U S dollar values 2010 An incendiary fire at a mega mall caused extensive damage to one third of the enclosed areas including partial collapse of the roof Although the center partially reopened within 10 days full reconstruction and repairs took 10 months One or more sprinkler sets were isolated before the fire Gross loss US 72 million 2008 A fire caused by hot work involved a large number of outdoor wooden sets of a working film studio The sets had a manual deluge system on the roof The investigation identified that it was standard practice to close the valves during active production shoots Gross loss US 452 million 2003 During a scheduled plant maintenance shutdown a fire of unknown cause spread rapidly because of four closed sprinkler valves Gross loss US 41 million 2001 A hot work fire spread through a large part of a meat processing facility The sprinkler systems protecting two buildings were out of service and being dismantled at the time of the fire Gross loss US 75 million 1996 A fire originated in a veneer dryer and spread to involve the majority of a plywood mill All seven buildings were burned to the ground except for a workshop and part of the boiler house A sprinkler valve had been shut before the fire preventing operation of sprinklers and fire hydrants Gross loss US 54 million 1994 A fire in a sawmill spread through the wood walls and floor and the wood truss roof collapsed The collapse caused the release of polychlorinated biphenyls PCBs from transformers and capacitors resulting in extensive environmental contamination Sprinklers were out of service as pipes had been cut to remove machinery Gross loss US 34 million 36 Reason ISSUE 3 2014 theSCIENCE