vault backup: 2025-10-27 16:34:32

fire-alarm-takeoff.md

@@ -2,18 +2,28 @@
 id:
 aliases: []
 tags:
+  - authorship/original
   - destiny/permanent
   - occupational/takeoff/fire-alarm
   - status/draft
   - type/guide
-  - authorship/original
-title: Fire Alarm
+title: Fire Alarm Takeoff
 ---
-# Fire Alarm
+# Fire Alarm Takeoff
+
+> [!important]
+> Complete [[emergency-systems-research]] before beginning takeoff.
 
 > [!info]
 > See [[fire-alarm]] for information about fire alarm systems.
 
+## Assembly Selection
+
+Free Air < PVC in Slab < EMT
+
+_High Rise (Steel & slab):_ Free air in Units, use conduit elsewhere.
+_Mid Rise, High Density (Wood frame):_ Free air, conduit only where required.
+
 ## Backbone
 
 Put all backbone takeoff in the `Area` of the Fire Command Center.
@@ -43,7 +53,7 @@ Input adder length to reach the bottom of the pit (Minimum 15ft).
 > [!important] Counting Elevator Shafts
 > Adjacent elevators may be in the same or parallel shafts.
 > Count the shafts accordingly:
-> 
+>
 > ```
 > |                             |                                |
 > | || +--------+ +--------+ || | || +--------+ || +--------+ || |
@@ -119,7 +129,7 @@ Count every stairwell at every level.
 `COMMON ASSEMBLIES`/`FIRE ALARM & DAS SYSTEMS`/`INDICATING DEVICES WITH WIRE - ...`/`MAGNETIC DOOR HOLDER - ...`
 
 _Design Build:_
-Count every set of double doors.
+Count 2 for every set of double doors.
 (Typical of elevator lobbies and corridors)
 
 ### Speaker Strobes
@@ -132,6 +142,10 @@ _Design Build:_
 * every elevator lobby,
 * and every BOH room on the first floor and garage levels.
 
+_Design Build (alt):_
+* 15ft from end of corridor,
+* then every 50ft
+
 ## Firefighter Phone System
 
 * firefighter phone jacks