Fire pump

[hhsting]

Diesel fire pumps have the fuel pump built in, which runs to the fuel tank. What you are talking about is an auxiliary pump designed to fill the supply tank from another source. The primary tank for the fire pump still needs to meet the requirements of NFPA 20 (see above), but the auxiliary tank and pump might be a moveable feast depending on the specific requirements of the installation and what the AHJ thinks is necessary.

What I have is electric fuel pump outside of fire pump which pumps the fuel to fire pump storage tank which is fire pumps storage tank that comes with fire pump. The diesel fire pump then takes the fuel from the storage tank for use. Their is no auxiliary fuel tank

What I am trying to find out is where in NEC or NFPA 20 or elsewhere in code it says the electric fuel pump like the one I have has to be on emergency? Designer has placed it on standby

 

[hhsting]

Diesel fire pumps have the fuel pump built in, which runs to the fuel tank. What you are talking about is an auxiliary pump designed to fill the supply tank from another source. The primary tank for the fire pump still needs to meet the requirements of NFPA 20 (see above), but the auxiliary tank and pump might be a moveable feast depending on the specific requirements of the installation and what the AHJ thinks is necessary.

That is correct. Ignore the previous thread. What I have is electric fuel pump outside of fire pump which pumps the fuel to fire pump auxiliary storage tank that is independent of the fire pump.

What I am trying to find out is where in NEC or NFPA 20 or elsewhere in code it says the electric fuel pump like the one I have has to be on emergency? Designer has placed it on standby

 

[kwired]

Is this pump pumping from a second storage tank that is intended to supply fuel to the main primary tank during a fire if the primary tank runs out?

Is it just a transfer pump that only runs when a supply truck is unloading? Could still be a secondary tank in this case but is maybe only a surge tank for unloading purposed and not intended as a significant supply of fuel to the pump.

 

[don_resqcapt19]

That is correct. Ignore the previous thread. What I have is electric fuel pump outside of fire pump which pumps the fuel to fire pump auxiliary storage tank that is independent of the fire pump.

What I am trying to find out is where in NEC or NFPA 20 or elsewhere in code it says the electric fuel pump like the one I have has to be on emergency? Designer has placed it on standby

It is simply a motor and is treated like any other motor, unless the AHJ requires otherwise.

 

[hhsting]

Is this pump pumping from a second storage tank that is intended to supply fuel to the main primary tank during a fire if the primary tank runs out?

Is it just a transfer pump that only runs when a supply truck is unloading? Could still be a secondary tank in this case but is maybe only a surge tank for unloading purposed and not intended as a significant supply of fuel to the pump.

Ok so I finally got some response from designer.

The electric fuel pump that is independent of diesel fire pump call it X is to pump fuel from delivery truck to fuel storage tank call it Y. The electric fuel pump X is a transfer pump only running during delivery. Their is no surge tank supplied.

The diesel fire pump engine includes a dedicated fuel pump call it Z which pull fuel from the fuel storage tank Y. Their is only one
fuel storage tank and it is the Y. No other fuel storage tank.

Would the electric fuel pump X be on emergency circuit or standby circuit from generator? Which code would that be under?

 

[don_resqcapt19]

Ok so I finally got some response from designer.

The electric fuel pump that is independent of diesel fire pump call it X is to pump fuel from delivery truck to fuel storage tank call it Y. The electric fuel pump X is a transfer pump only running during delivery. Their is no surge tank supplied.

The diesel fire pump engine includes a dedicated fuel pump call it Z which pull fuel from the fuel storage tank Y. Their is only one
fuel storage tank and it is the Y. No other fuel storage tank.

Would the electric fuel pump X be on emergency circuit or standby circuit from generator? Which code would that be under?

It is simply a motor like any other motor and will not be on an Article 700 or 701 circuit. If the designer wants it to be, it could be on a 702 circuit.

 

[kwired]

Ok so I finally got some response from designer.

The electric fuel pump that is independent of diesel fire pump call it X is to pump fuel from delivery truck to fuel storage tank call it Y. The electric fuel pump X is a transfer pump only running during delivery. Their is no surge tank supplied.

The diesel fire pump engine includes a dedicated fuel pump call it Z which pull fuel from the fuel storage tank Y. Their is only one
fuel storage tank and it is the Y. No other fuel storage tank.

Would the electric fuel pump X be on emergency circuit or standby circuit from generator? Which code would that be under?

I sort of doubt any fire/life safety codes would require you to be able to unload fuel for this from a delivery truck during failure of normal power supply, but I don't really know these codes either. If it were for fuel to a required standby generator I could see that being more likely.