28-06-2012, 01:09 PM
FIRE ALARM
[attachment=25914]
Fire Alarm System Conductors Rule 32-100
Insulation rating of not less than 300 V
Shall be suitable for the purpose of the type listed in Table 19 and individual conductors smaller than #14 AWG installed in a raceway shall be equipment wire of the type listed in Table 11.
Wiring Methods Rule 32-102
All conductors of a fire alarm system shall be:
a) installed in a metal raceway
b) installed in a cable having a metal armour or sheath.
c) installed in rigid non-metallic conduit, where embedded in at least 50 mm of masonry or poured concrete, or installed underground.
d) installed in electrical non-metallic tubing, where embedded in at least 50 mm of masonry or poured concrete.
Conventional Wiring
Class B wiring incorporates end of line devices. (2 conductor circuit)
Class A wiring does not incorporate end of line devices. (4 conductor circuit)
T tap splices can not be used on either wiring method.
Multiplex wiring for addressable systems
DCL B two conductor circuits or data loops do not incorporate end of line devices and can be T tapped.
DCL A four conductor circuits or data loops do not incorporate an end of line device and can not be T tapped
Electrical Supervision
An automatic sprinkler system shall be electrically supervised to indicate a supervisory signal on the building fire alarm system annunciator for each of the following:
[attachment=25914]
Fire Alarm System Conductors Rule 32-100
Insulation rating of not less than 300 V
Shall be suitable for the purpose of the type listed in Table 19 and individual conductors smaller than #14 AWG installed in a raceway shall be equipment wire of the type listed in Table 11.
Wiring Methods Rule 32-102
All conductors of a fire alarm system shall be:
a) installed in a metal raceway
b) installed in a cable having a metal armour or sheath.
c) installed in rigid non-metallic conduit, where embedded in at least 50 mm of masonry or poured concrete, or installed underground.
d) installed in electrical non-metallic tubing, where embedded in at least 50 mm of masonry or poured concrete.
Conventional Wiring
Class B wiring incorporates end of line devices. (2 conductor circuit)
Class A wiring does not incorporate end of line devices. (4 conductor circuit)
T tap splices can not be used on either wiring method.
Multiplex wiring for addressable systems
DCL B two conductor circuits or data loops do not incorporate end of line devices and can be T tapped.
DCL A four conductor circuits or data loops do not incorporate an end of line device and can not be T tapped
Electrical Supervision
An automatic sprinkler system shall be electrically supervised to indicate a supervisory signal on the building fire alarm system annunciator for each of the following: