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ibc_s0403.md

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+---
+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.