Does fire alarm voice evacuation equipment require a separate conduit/raceway for the audio circuits?
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> "(D) Audio System Circuits and PLFA Circuits Audio system circuits described in 640.9(C) and installed using Class 2 or Class 3 wiring methods in compliance with 725.54 and 725.61 shall not be permitted to be installed in the same cable or raceway with power-limited conductors or cables.
> Section 760.56(D) is new in the 2005 Code. This section prohibits audio circuits that are installed as Class 2 or Class 3 circuits from being installed in the same cable or raceway with power-limited fire alarm wiring. A fault between audio amplifier circuits and power-limited fire alarm circuits has the potential to impair the fire alarm system."
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> "(D) Audio System Circuits and PLFA Circuits Audio system circuits described in 640.9(C) and installed using Class 2 or Class 3 wiring methods in compliance with 725.54 and 725.61 shall not be permitted to be installed in the same cable or raceway with power-limited conductors or cables.
> Section 760.56(D) is new in the 2005 Code. This section prohibits audio circuits that are installed as Class 2 or Class 3 circuits from being installed in the same cable or raceway with power-limited fire alarm wiring. A fault between audio amplifier circuits and power-limited fire alarm circuits has the potential to impair the fire alarm system."