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