Fire alarm disconnects

[Natfuelbilll]

I have a single service supplying five remote buildings. Each building has a fire alarm panel. The engineer (AHJ) calls for installing a fire alarm switch on the line side of each building main.

Is the fire alarm panel fed by a service disconnect switches (service rules apply) or feeder tapped switches (tap rules apply)?

Service rules would let me install #8 wire. Feeder rules call for installing 500kcmil taps for the 3200A feeder breaker.

The load for each panel is 12A.

I'm looking to prepare my argument for #8.....

 

[dkidd]

230.82(5) 2014.
But it won't pass as a required emergency power source, so why bother?

 

[gadfly56]

I have a single service supplying five remote buildings. Each building has a fire alarm panel. The engineer (AHJ) calls for installing a fire alarm switch on the line side of each building main.

Is the fire alarm panel fed by a service disconnect switches (service rules apply) or feeder tapped switches (tap rules apply)?

Service rules would let me install #8 wire. Feeder rules call for installing 500kcmil taps for the 3200A feeder breaker.

The load for each panel is 12A.

I'm looking to prepare my argument for #8.....

Are you installing in NYC or some other fruitcake jurisdiction that requires line-side taps for fire alarm systems? It is not a requirement of NFPA 72 or NFPA 70.

 

[victor.cherkashi]

230.82(5) 2014.
But it won't pass as a required emergency power source, so why bother?

230.82(5) 2014 "shall be permitted to be connected to the supply side". why it will no pass 230.82(5)? it is not mandatory.