vault backup: 2025-12-06 13:12:24

2025-12-06 13:12:24 -05:00
parent 8c9e0e0b6b
commit ca6329ed78
10 changed files with 337 additions and 19 deletions
@@ -0,0 +1,22 @@
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 # 2025-12-05
 ## 2025-12-05 10:41
 ### PDI Accubid Phase Office Space
 > [!quote] Joel Jansen to William Bonn 2025-12-05 (pp.)
 > PDI Accubid `Phase` "Office Space"
 > is normally used for core & shell retail office space
 Interpreted as tenant coworking space, a la
 [Coworking & Office Space in St. Pete | Rising Tide](https://risingtidecowork.com/)
@@ -11,9 +11,54 @@ title: Emergency Communications Systems (ECS)
 ---
 # Emergency Communications Systems (ECS)
-## Area of Refuge/Rescue (AOR)
+See also [[fire-alarm]].
-Used to provide 2-way communication between the building exterior
+## "Two-Way System"
 With the exception of ERCCS,
 it is not appropriate to refer to one or any of these as _the_ two-way system.
 _A_ "two-way communication system" as used by the ICC codes
 refers to a single connection (for lack/ignorance of a better term),
 therefore any building will always have more than one.
 > [!cite] [[ibc_s1009#1009.8.1 System requirements.]] (emphasis added)
 > Two-way communication _systems_ shall provide communication
 > between each required location and the fire command center
 > or a central control point location approved by the fire department.
 For a high-rise condominium project,
 To exclude _the_ two-way communication system
 would be as nonsensical as excluding _the_ unit subfeed.
 > [!aside]
 > There's an argument to be made
 > that _the_ two-way communication system (singular)
 > is legitimate shorthand for the super-system
 > that includes all ICC two-way communication _systems_ (plural),
 > and I'd tend to agree, but the distinction should be noted.
 All systems currently listed in this note
 are described as "two-way communication systems".
 Those listed directly below have no overlap:
 * stairway communication systems --- [[ibc_s0403#403.5.3.1 Stairway communication system.|IFC 403.5.3.1]]
 * elevator landing communication systems --- [[ibc_s1009#1009.8 Two-way communication.|IFC 1009.8]]
 * area of refuge communication systems --- [[ibc_s1009#1009.6.5 Two-way communication.|IFC 1009.6.5]]
 * emergency responder communication coverage system -- [[ifc_s0510#SECTION 510---EMERGENCY RESPONDER RADIO COVERAGE|IFC Section 510]]
 ### In Other Standards
 In NFPA 101 "two-way communication system" is used as generic term,
 to be installed in accordance with the governing code
 [[nfpa-72_national-fire-alarm-code|NFPA 72: National Fire Alarm and Signaling Code]].
 [[nfpa-72_national-fire-alarm-code#Chapter 24 Emergency Communications Systems (ECS)]]
 [[nfpa-72_national-fire-alarm-code#24.8 Two-Way, In-Building Wired Emergency Services Communications Systems.|24.8 Two-Way, In-Building Wired Emergency Services Communications Systems.]]
 ## Area of Refuge (AOR) Communication Systems
 Used to provide two-way communication between the building exterior
 and one or more designated areas
 offering relative protection from hazards (mainly fire) in an emergency.
@@ -30,19 +75,18 @@ Area of Refuge is defined in [[nfpa-101_life-safety-code|NFPA 101: Life Safety C
 [[nfpa-72_national-fire-alarm-code#24.10 Area of Refuge (Area of Rescue Assistance) Emergency Communications Systems, Stairway Communications Systems, Elevator Landing Communications Systems, and Occupant Evacuation Elevator Lobby Communications Systems.]]
-## Two-Way Communication Systems
+## Emergency Responder Communication Coverage Systems (ERCCS)
 In NFPA 101 "two-way communication system" is used as generic term,
 to be installed in accordance with the governing code [[nfpa-72_national-fire-alarm-code|NFPA 72: National Fire Alarm and Signaling Code]].
 [[nfpa-72_national-fire-alarm-code#Chapter 24 Emergency Communications Systems (ECS)|Chapter 24 Emergency Communications Systems (ECS)]]
 [[nfpa-72_national-fire-alarm-code#24.8 Two-Way, In-Building Wired Emergency Services Communications Systems.]]
 ## Emergency Responder Radio Communication Systems (ERRCS)
 > [!info] Also Known As
-> * Emergency Responder Radio Coverage (ERRC)
+> * Emergency Communication Coverage Systems (ECCS)
 > * Emergency Responder Communications Enhancement Systems (ERCES)
 Includes implementations utilizing wired and wireless (radio) methods.
 ### Emergency Responder Radio Coverage Systems (ERRCS)
 > [!info] Also Known As
 > * Emergency Responder Radio Communication Systems (ERRCS)
 Relevant Standard: NFPA 1225
@@ -50,9 +94,9 @@ Where required, compliance is achieved by means of BDA and DAS systems
 as required by the AHJ.
 > [!quote]
-An Emergency Responder Radio Coverage (ERRC) system
+> An Emergency Responder Radio Coverage (ERRC) system
-is a Public Safety Radio (PSR) DAS system
+> is a Public Safety Radio (PSR) DAS system
-that enhances the coverage of wireless signals in buildings.
+> that enhances the coverage of wireless signals in buildings.
-This allows first responders to communicate more effectively during emergencies.
+> This allows first responders to communicate more effectively during emergencies.
 ## Voice Evacuation
@@ -11,6 +11,9 @@ title: Fire Alarm
 ---
 # Fire Alarm
 See [[emergency-communications-systems]]
 for non-fire-alarm systems.
 ## Fire Command Center (FCC)
 > [!info] Also Known As
@@ -0,0 +1,59 @@
 ---
 id:
 aliases:
  - ibc-403
 tags:
  - authorship/other
  - destiny/permanent/entry-point
  - exclude-from-word-count
  - status/incomplete
  - topic/construction/electrical
  - type/media
 title: SECTION 403---HIGH-RISE BUILDINGS
 ---
 # SECTION 403---HIGH-RISE BUILDINGS
 ## 403.1 Applicability.
 High-rise buildings shall comply with Sections 403.2 through 403.6.
 %% TODO %%
 ## 403.4 Emergency systems.
 The detection, alarm and emergency systems of high-rise buildings shall comply with Sections 403.4.1 through 403.4.8.
 %% TODO %%
 ### 403.4.5 Emergency communication coverage.
 In-building, two-way emergency responder communication coverage shall be
 provided in accordance with [[ifc_s0510|Section 510 of the _International Fire Code_]].
 %% TODO %%
 ## 403.5 Means of egress and evacuation.
 The means of egress in high-rise buildings
 shall comply with Sections 403.5.1 through 403.5.5.
 ### 403.5.3 Stairway door operation.
 Stairway doors other than the exit discharge doors
 shall be permitted to be locked from the stairway side.
 Stairway doors that are locked from the stairway side
 shall be capable of being unlocked without unlatching
 where all of the following conditions occur:
 1. Individually or simultaneously upon a signal from the fire command center.
 2. Simultaneously upon activation of a fire alarm signal in an area served by the stairway.
 3. Upon failure of the power supply to the lock or the locking system.
 ### 403.5.3.1 Stairway communication system.
 A telephone or other two-way communications system
 connected to an approved constantly attended station
 shall be provided at not less than every fifth floor in each stairway
 where the doors to the stairway are locked.
 Systems shall be listed in accordance with UL 2525
 and installed in accordance with NFPA 72.
@@ -0,0 +1,19 @@
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 title: SECTION 918---EMERGENCY RESPONDER COMMUNICATION COVERAGE
 ---
 # SECTION 918---EMERGENCY RESPONDER COMMUNICATION COVERAGE
 ## 918.1 General.
 In-_building_ two-way emergency responder communication coverage
 shall be provided in all new _buildings_
 in accordance with [[ifc_s0510|Section 510 of the _International Fire Code_]].
@@ -0,0 +1,89 @@
 ---
 id:
 aliases:
  - ibc-1009
 tags:
  - authorship/other
  - destiny/permanent/entry-point
  - exclude-from-word-count
  - status/incomplete
  - topic/construction/electrical
  - type/media
 title: SECTION 1009---ACCESSIBLE MEANS OF EGRESS
 ---
 # SECTION 1009---ACCESSIBLE MEANS OF EGRESS
 %% TODO %%
 ## 1009.6 Areas of refuge.
 Every required area of refuge
 shall be accessible from the space it serves
 by an accessible means of egress.
 ### 1009.6.5 Two-way communication.
 Areas of refuge shall be provided with a two-way communication system
 complying with Sections [[#1009.8.1 System requirements.|1009.8.1]]
 and [[#1009.8.2 Directions.|1009.8.2]].
 %% TODO %%
 ## 1009.8 Two-way communication.
 A two-way communication system
 complying with Sections 1009.8.1 and 1009.8.2
 shall be provided at the landing serving each elevator or bank of elevators
 on each accessible floor that is one or more stories above or below
 the level of exit discharge.
 > [!important] Exceptions:
 > 1. Two-way communication systems are not required
 >     at the landing serving each elevator or bank of elevators
 >     where the two-way communication system is provided
 >     within areas of refuge in accordance with
 >     [[#1009.6.5 Two-way communication.|Section 1009.6.5.]]
 > 
 > 2. Two-way communication systems are not required
 >     on floors provided with ramps
 >     conforming to the provisions of Section 1012.
 > 
 > 3. Two-way communication systems are not required
 >     at the landings serving only service elevators
 >     that are not designated as part of the accessible means of egress
 >     or serve as part of the required accessible route into a facility.
 > 
 > 4. Two-way communication systems are not required
 >     at the landings serving only freight elevators.
 > 
 > 5. Two-way communication systems are not required
 >     at the landing serving a private residence elevator.
 > 
 > 6. Two-way communication systems are not required
 >     in Group I-2 or I-3 facilities.
 ### 1009.8.1 System requirements.
 Two-way communication systems shall provide communication
 between each required location and the fire command center
 or a central control point location approved by the fire department.
 Where the central control point is not a constantly attended location,
 the two-way communication system
 shall have timed, automatic telephone dial-out capability
 that provides two-way communication
 with an approved supervising station or emergency services.
 The two-way communication system
 shall include both audible and visible signals.
 Systems shall be listed in accordance with UL 2525
 and installed in accordance with NFPA 72.
 ### 1009.8.2 Directions.
 Directions for the use of the two-way communication system,
 instructions for summoning assistance
 via the two-way communication system
 and written identification of the location
 shall be posted adjacent to the two-way communication system.
 Signage shall comply with the ICC A117.1 requirements for visual characters.
 %% TODO %%
@@ -0,0 +1,40 @@
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  - ifc-510
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 title: SECTION 510---EMERGENCY RESPONDER RADIO COVERAGE
 ---
 # SECTION 510---EMERGENCY RESPONDER RADIO COVERAGE
 ## 510.1 Emergency responder radio coverage in new buildings.
 All new buildings shall have _approved_ radio coverage
 for emergency responders within the building
 based upon the existing coverage levels
 of the public safety communication systems
 of the jurisdiction at the exterior of the building.
 This section shall not require improvement
 of the existing public safety communication systems.
 > [!important] Exceptions:
 >
 > 1. Where approved by the building official and the _fire code official_,
 > a wired communication system in accordance with [[ifc_s0907|Section 907.2.13.2]]
 > shall be permitted to be installed or maintained
 > instead of an approved radio coverage system.
 > 
 > 2. Where it is determined by the _fire code official_
 > 3. that the radio coverage system is not needed.
 > 
 > 4. In facilities where emergency responder radio coverage is required
 > and such systems, components or equipment required
 > could have a negative impact on the normal operations of that facility,
 > the _fire code official_ shall have the authority to accept
 > an automatically activated emergency responder radio coverage system.
@@ -0,0 +1,31 @@
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 id:
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  - ifc-907
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  - authorship/other
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 title: SECTION 907---FIRE ALARM AND DETECTION SYSTEMS
 ---
 # SECTION 907---FIRE ALARM AND DETECTION SYSTEMS
 %% TODO %%
 #### 907.2.13.2 Fire department communication system.
 Where a wired communication system is approved
 in lieu of an emergency responder radio coverage system
 in accordance with [[ifc_s0510|Section 510]],
 the wired fire department communication system
 shall be designed and installed in accordance with NFPA 72
 and shall operate between a fire command center complying with Section 508,
 elevators, elevator lobbies, emergency and standby power rooms,
 fire pump rooms, areas of refuge and inside interior exit stairways.
 The fire department communication device
 shall be provided at each floor level within the interior exit stairway.
 %% TODO %%
@@ -45,6 +45,8 @@ This reduces the output power, so the lamp dims.
 > "Triac" refers to the electronic component
 > that does the wave-chopping.
 #### Subtypes
 There are two subtypes based on which side of the wave is chopped.
 * Magnetic Low Voltage (MLV)** -- AKA "Leading Edge" or "Forward Phase"
@@ -57,7 +59,7 @@ There are two subtypes based on which side of the wave is chopped.
 > They are, unfortunately, the most common terms.
 > [!important]
-> "Triac" is sometimes used in contrast to ELV erroneously to mean MLV
+> "Triac" is sometimes used (in contrast to ELV) erroneously to mean MLV
 There also exist "universal" dimmers,
 which can be switched between the two subtypes.
@@ -0,0 +1,9 @@
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 id:
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 title: Me-isms
 ---
 # Me-isms
 * (when misunderstood) "No, no, no."