Fire Alarm System Wiring Methods

Cable splices or terminations shall be made in listed fittings boxes enclosures fire alarm devices or utilization equipment.

Fire alarm system wiring methods.

Non power limited fire alarm wiring can be used for power limited fire alarm circuits based on 760 130 a and requires a box as noted in the above paragraph. Secondary power supplies must supply power to an in building fire emergency voice alarm communications fire alarm system for a minimum of blank. Smoke alarms can be part of an addressable fire alarm system. When applying most articles in chapters 5 through 8 chapter 3 wiring methods apply except as noted.

Variety of fire alarm installation wiring diagram. The environment into which fire alarm wiring is installed determines the specific type and rating of the cable or wiring to be used. 760 130 wiring methods and materials on load side of the plfa power source. This is the basic fire alarm system used in household wiring.

The exception is the newer addressable fire alarm systems which utilize better designed sensing equipment and more reliable fire detection devices. 24 hours standby followed by 15 minutes of alarm where an engine driven generator is used to provide secondary power a minimum of blank hours of batteries are required. A wiring diagram is a simplified conventional pictorial depiction of an electrical circuit. In our basic wiring diagram a single or multiple heat and smoke detectors are installed in the home by connecting the live line or hot neutral ground and an interconnected wire to the alarm.

A wiring diagram is a streamlined traditional photographic depiction of an electric circuit. Also included are other fire alarm functions such as guard s tour sprinkler waterflow sprinkler supervisory equipment elevator capture and shutdown door release smoke doors and damper control fire doors and fan shutdown only where these. Chapter 3 in reverse. A smoke or heat detector can be installed to the existing or new home wiring.

B plfa wiring methods and materials. It reveals the elements of the circuit as simplified forms and the power and signal connections between the devices. Wiring methods and materials on the load side of the power limited power source are covered in 760 130 a and b. Fire alarm circuits on the load side of the power source shall be permitted to be installed using wiring methods and materials in accordance with 760 130 a b or a combination of a and b.

Wiring methods for power limited fire alarm circuits power limited fire alarm circuits shall be installed in accordance with nec article 760 46 and conductors shall be solid or stranded copper. Collection of fire alarm wiring diagram pdf.