as per NFPA 72 the voltage drop calculation should be submitted to the AHJ for NAC, is this also applicable to SLC? or manufacturing data and documentation should be enough?
Not a fire alarm guru
But from 2010 editon, does 10.5.6.3.2 elude to it??
Ahj, sometimes can require almost anything, in reason.
Maybe a local practice?
thanks Paul for your response which I appreciate
I know that in NFPA 72 (2016) code 7.2 state the minimum documentation to AHJ and in 7.2.1 point 8 is about voltage drop calculation for NAC.
also in NFPA 72 (2010) 10.18.1.2 at the request of AHJ voltage drop calculation of NAC among other documents to be provided.
but this is not applicable to SLC because it is signaling line that works in accordance to the manufacturing used technology.
so please help is needed to reply on AHJ or how to do voltage drop calculation on SLC.
another route to go is to ask the ahj what section of 72 they are referencing for the requirement.
Retrieving data ...