Washington Administrative Code › Title 51 - Enterprise Services, Department of (Building Code Council) › Chapter 51-54A - State Building Code adoption and amendment of the 2021 edition of the International Fire Code › Section 51-54A-4900 - Fixed guideway transit and passenger rail systems

Current through Register Vol. 24-14, July 15, 2024
4901
Scope NFPA
			 130.
4901.1
General.
Fixed guideway transit and passenger rail systems shall be in accordance with
			 NFPA 130, as modified below.
4901.2
NFPA 130 Section 3.3.44.2.
Add new definition as follows:
3.3.44.2 Traction power sub station (TPSS): A
			 TPSS is an electrical substation consisting of switchgear
			 transformers/rectifiers, emergency trip equipment, and other systems that
			 converts AC electric power provided by the electrical power industry for public
			 utility service to DC voltage to supply light rail vehicles with traction
			 current.
4901.3
NFPA 130 Section 5.4.4
Modify NFPA 130 Sections 5.4.4.1 and 5.4.4.1.1 to
			 read as follows:
5.4.4.1 An automatic
			 sprinkler system shall be provided throughout enclosed stations.
EXCEPTIONS:
1. Traction power substation (TPSS) when located in a
						  transformer vault designed in accordance with the NFPA 70.
2. Other high voltage equipment located in a
						  transformer vault designed in accordance with the NFPA 70 when approved by the
						  fire code official.
3. Fire command centers, communication room(s), and
						  signal rooms when protected with clean agent fire suppression and separated
						  from other spaces with 2-hour fire rated construction.
4. Other operational critical rooms when protected with
						  clean agent fire suppression and separated from other spaces with 2-hour fire
						  rated construction, when approved by the fire code official.
5.4.4.1.1 An
			 automatic sprinkler system shall be provided in areas of open stations used for
			 concessions, markets, storage areas and similar areas with combustible
			 loadings, and in trash rooms, electrical rooms, mechanical rooms, machinery
			 rooms, communication rooms, and other enclosed rooms.
EXCEPTIONS:
1. Stations at grade with less than 1,500 sq. ft. of
						  ancillary area/ancillary space.
2. Fire command centers, communication room(s), and
						  signal rooms when protected with clean agent fire suppression and separated
						  from other spaces with 2-hour fire rated construction.
3. Other operational critical rooms when protected with
						  clean agent fire suppression and separated from other spaces with 2-hour fire
						  rated construction, when approved by the fire code official.
5.4.4.2 Sprinkler protection shall be
			 permitted to be omitted in areas of open stations separated from the station by
			 a distance of 20 feet.
4901.4
NFPA 130 Section 5.4.5.
Modify NFPA 130 Sections 5.4.5.1 as follows:
5.4.5.1 Class I standpipes shall be installed
			 in enclosed stations in accordance with International Fire Code Section 905
			 except as modified herein.
4901.5
NFPA 130 Section 5.4.6.
Modify NFPA 130 Sections 5.4.6 as follows:
5.4.6 Portable fire extinguishers in such
			 number, size, type, and location in accordance with the International Fire Code
			 Section 906.
5.4.6.1 Portable fire
			 extinguishers are not required in public areas of at-grade stations.
4901.6
NFPA 130
			 Section 5.2.2.
Modify NFPA 130 Section 5.2.2.2 as follows:
5.2.2.2 Construction types shall conform to
			 the requirements in the International Building Code, Chapter 6, unless
			 otherwise exempted in this section.
Table 5.2.2.1
Minimum Construction Requirements for New Station
				Structures
Station
						  Configuration
Construction
						  Type[DAGER]
Stations erected entirely above grade and in a separate
						  building:
Open stations
Type IIB
Enclosed stations
Type IIA
Stations erected entirely or partially below
						  grade:
Open above grade portions of below grade
						  structures*
Type IIA
Below grade portions of structures
Type IB
Below grade structures with occupant loads exceeding
						  1000
Type IA
* Roofs not supporting an occupancy
				above are not required to have a fire resistance rating.
[DAGER] Construction types are in
				accordance with the International Building Code.
4901.7
NFPA 130 Section 5.2.2.
Modify NFPA 130 Section 5.2.4.3 as follows:
5.2.4.3
Ancillary spaces.
Fire
			 resistance ratings of separations between ancillary occupancies shall be
			 established as required for accessory occupancies and incidental uses by the
			 International Building Code and in accordance with ASTM E119 and ANSI/UL
			 263.
4901.8
NFPA
			 130 Section 5.2.5.
Modify NFPA 130 Section 5.2.5.4 as follows:
5.2.5.4 Materials used as interior finish in
			 open stations shall comply with the requirements of the International Building
			 Code, Chapter 8.
4901.9
NFPA 130 Section 5.3.1.
Modify NFPA 130 Section 5.3.1.1 as
			 follows:
5.3.1.1 The provisions for means of
			 egress for a station shall comply with the International Building Code, Chapter
			 10, except as herein modified.
4901.10
NFPA 130 Section 5.3.2.
Add a New Section to NFPA 130 Section 5.3.2.2.1 as follows:
5.3.2.2.1 Where station occupancy is
			 anticipated to be greater than design capacity during a major event the
			 operating agency shall initiate approved measures to restrict access to the
			 station, when required by the fire code official, to ensure existing means of
			 egress are adequate as an alternative to account for peak rid-ership associated
			 with major events.
4901.11
NFPA 130 Section 5.3.4.
Modify NFPA 130 Section 5.3.2.4(1) as follows:
(1) The occupant load for that area shall be
			 determined in accordance with the provisions of the International Building Code
			 as appropriate for the use.
4901.12
NFPA 130 Section 5.3.3.
Modify NFPA 130 Section 5.3.3.4 as follows:
5.3.3.4
Travel distance.
For
			 open stations the maximum travel distance on the platform to a point at which a
			 means of egress route leaves the platform shall not exceed 100 m (325 ft.). For
			 enclosed stations the travel distance to an exit shall not exceed 76 m (250
			 ft.).
4901.13
NFPA
			 130 Section 5.3.5.
Modify NFPA 130 Section 5.3.5.3(2) as follows:
(2) * Travel speed - 14.6 m/min (48 ft./min)
			 (indicates vertical component of travel speed).
5.3.2.4 Where an area within a station is
			 intended for use by other than passengers or employees, the following
			 parameters shall apply:
1. The occupant load
			 for that area shall be determined in accordance with the provisions of the IBC
			 NFPA 101 as appropriate for the use.
2. The additional occupant load shall be
			 included in determining the required egress from that area.
3. The additional occupant load shall be
			 permitted to be omitted from the station occupant load where the area has
			 independent means of egress of sufficient number and capacity.
5.3.3.4
Travel
			 distance.
For open stations the maximum travel distance on the platform
			 to a point at which a means of egress route leaves the platform shall not
			 exceed 100 m (325 ft.). For enclosed stations the travel distance to an exit
			 shall not exceed 76 m (250 ft.).
5.3.5.4 Escalators shall not account for more
			 than one-half of the egress capacity at any one level.
4901.14
NFPA 130 Section 5.3.5.
Delete NFPA 130 Section 5.3.5.5.
4901.15
NFPA 130 Section 5.3.7.
Modify NFPA 130 Section 5.3.7 as follows:
5.3.7* Doors, gates, security grilles and
			 exit hatches.
5.3.7.1 The egress capacity for
			 doors and gates in a means of egress serving public areas shall be computed as
			 follows:
1. Sixty people per minute (p/min)
			 for single leaf doors and gates.
2.
			 *0.0819 p/mm-min (2.08 p/in.-min) for biparting multileaf doors and gates
			 measured for the clear width dimension.
5.3.7.2.1 Security grilles are allowed when
			 designed and operated in accordance with the International Building
			 Code.
4901.16
NFPA 130 Section 5.3.9.
Modify NFPA 130 Section 5.3.9 as follows:
5.3.9*
Horizontal exits.
Horizontal exits shall comply with the International Building Code Section
			 1026.
4901.17
NFPA 130 Section 5.3.11.
Modify NFPA 130 Section 5.3.11 as follows:
5.3.11.1 Illumination of the means of egress
			 in stations, including escalators that are considered a means of egress, shall
			 be in accordance with the International Building Code Section 1008.
5.3.11.2 Means of egress, including
			 escalators considered as means of egress, shall be provided with a system of
			 emergency lighting in accordance with the International Building Code Section
			 1008.
4901.18
NFPA 130 Section 5.4.7.
Modify NFPA 130 Section 5.4.7 as follows:
5.4.7 Emergency ventilation shall be provided
			 in enclosed stations in accordance with Chapter 7 and the International
			 Building Code Section 909.