While pumps are intended to start automatically (on a pressure drop) it is intended that upon receipt of alarm indicating the pump is running, a qualified person will be dispatched to the pump room to monitor conditions and provide shut down after 30 minutes if the pump isn't actually needed. This is especially true of electric motor drive pumps because it's not good for the motor to start and stop without allowing it to run at least 10 minutes.
Even your temporary water supply pump should have a running alarm to some central station, job shack or similar but again, non-listed pumps are not the subject of NFPA 20 so do whatever your local AHJ requires <insert stand disclaimer here> bc -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of sam b Sent: Monday, April 12, 2010 12:36 AM To: sprinklerforum@firesprinkler.org Subject: Re: FIRE PUMP: Urgent Thaanx bob I just went through the same now. But If am not providing an automatic shutoff facility,how can I avoid any damage to the pump in case of mentioned scenario >From the pump supplier I cant expect anything .so from our side what we can do to make it more safe.? any thoughts? Regards Sam On Mon, Apr 12, 2010 at 10:44 AM, Bob Caputo <bcap...@cox.net> wrote: > Since your pump is not listed, you don't comply with NFPA 20 so why does it > matter if the standard allows an automatic shut off? For your use, the > 2010 edition of NFPA states the following: > > > > 12.7.2.6 Sole Supply Pumps. > > 12.7.2.6.1 Shutdown shall be accomplished by manual or automatic means. > > 12.7.2.6.2 Automatic shutdown shall not be permitted where the pump > constitutes the sole source of supply of a fire sprinkler or standpipe > system or where the authority having jurisdiction > > has required manual shutdown. > > > > Regardless of the pump listing or other compliance issues, the answer lies > solely with the permission of the local AHJ. > > Important Notice: As a member of the NFPA 13 Installation & NFPA 25 > Committee's, this correspondence is not a Formal Interpretation issued > pursuant to NFPA Regulations. Any opinion expressed is the personal opinion > of the author, and does not necessarily represent the official position of > the NFPA or its Technical Committees. In addition, this correspondence is > neither intended, nor should be relied upon, to provide consultation or > services. > > Bob Caputo > > > > > > > > -----Original Message----- > From: sprinklerforum-boun...@firesprinkler.org > [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of sam b > Sent: Sunday, April 11, 2010 11:15 PM > To: sprinklerforum@firesprinkler.org > Subject: FIRE PUMP: Urgent > > > > Dear all.. > > > > We are in the process of installing *temporary fire protection* for a 30 > > story builing. > > The pump installed is a *single diesel engine pump* (Not listed) for the > > supplying water for the landing valves in each floor.The fire pump is > > located in the basement floor and is barricaded . > > > > The operation of the fire pump will be such that In case of pressure drop > > due to opening of the hosereeel or landing valves the pump will start. > > Now during the inspection from Client,they asked us why there is no > > automatic shutoff . > > *The scenario they are considering is *. > > Suppose some labour accidentally opens the hosreel for anypurpose,the pump > > will start running and if there is noone to stop the pump ,will it get > > damaged.? > > I suggested we could provide a fire alarm bell for alerting the people. > > *Can we provide automatic shuttoff for the diesel pump. Is it acceptable as > > per NFPA?* > > Is there anyother options available or anything from NFPA to support that > we > > dont need automatic shutoff? > > > > Please give your valuable inputs. > > > > Sam > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@firesprinkler.org > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > For Technical Assistance, send an email to: supp...@firesprinkler.org > > > > To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org<to%3asprinklerforum-requ...@fire sprinkler.org> > > (Put the word unsubscribe in the subject field) > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.org > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: supp...@firesprinkler.org > > To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org<to%3asprinklerforum-requ...@fire sprinkler.org> > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
