Hello!
Good day!
As mentioned, the project is a Hydroelectric Power Plant.
I suggest you go through NFPA-851(2010) & NFPA-850 (2015). These recommended practice are good start.
NFPA-851 chapter 8 (Fire Protection for the construction Site)
Hope this helps,
PAtrick
Hello!
Good day!
These are my suggestion only:
Our concerns are as follows:
a) Is there any chemical product from the above, which shall never stored outdoor? you could go through the Material Safety Data Sheet with reference on the properties of the chemicals, and you could refer to NFPA-30...
Hello FPE22!
Good day!
With regards to:
"Wetting the transformer having fire is what we're intending to do. It's a waste to ruin the other transformers having no fire." Please be noted that as you mentioned, they are installed within the same room and there are no fire barriers between each...
Hello!
Good day!
In my opinion;
Contractor could say that NFPA doesn't prohibit him to do so as you said, but installing same type of sprinkler is also as per NFPA.
Therefore, owner could insist the same and the contractor should follow.
Reason is:
By definition, AHJ is an organization...
Hello!
First, I assume that NFPA 8.3.2.2, 8.3.2.3, 8.3.2.4, 8.3.2.5 does not met with regards on your situation since you said that intermediate temperature sprinkler is not required.
Temperature ratings of a sprinkler are used for the following; A) To keep sprinklers from operating...
Thanks TD2K.
I use the chart (flow vs. pressure drop vs. size) provided by the manufacturer.
Yes, this drop is base as when the strainer is clean..
Regards,
Hello Guys,
Good day!
We have a scenario in which I would like to hear a comment or an opinion from you guys.
The thing is, in the Manufacturer's Manual, it is mentioned that the nozzle should be atleast 300mm max. from the ceiling. In our current site condition, it is not possible since we...
Hello Guys,
Good day!
When we calculate for the NPSH with Strainer installed, is it correct to assumed that:
NPSH = Atm. pressure + Static Pressure - Vapor pressure - Pipe/Fittings/Valves pressure loss - Strainer pressure loss
The thing is, I am thinking that A pressure drop shall be...
Hello Experts!
Good day!
Iam currently designing a foam chamber (particulary ansul). In the catalogue, it is mentioned the flow range between 40 psi to 100 psi which corresponds to cetain K-factor.
The thing is, the incoming pressure at the flanged inlet of the foam chamber is 130 psi. In...
hi!
I think if the system is to be provided with centrifugal fire pump, it should be more than 40psi as per NFPA-20 clause 4.8.2.
As per AHJ requirement in my previous project, they are always requiring class II system in every building as a first line of defense. Tjen, 4.5bar is required...
Hi!
1. As mentioned in NFPA 20 handbook, we could take a rule of thumb of 1% of FP capacity. Sometimes, we calculate for the leakage rate if we have a large underground system or we select it as a one sprinkler flow. Whichever is higher.
2. There is no requirement of providing two jockey pump...
