Provisions for firefighting (3.2.5): BCIN Fire Protection

Last updated October 22, 2026

Values this chapter turns on

minimum clear width of a fire access route: 6 m; minimum clear width of a fire access route
minimum centre line radius of an access route: 12 m; minimum centre line radius of an access route
max hydrant to truck to building, no connection: 90 m; max hydrant to truck to building, no connection
height to top ceiling that triggers standpipes: 14 m; height to top ceiling that triggers standpipes

Subsection 3.2.5. covers everything the fire department needs to fight a fire: getting into the building, getting trucks close, getting water, and the standpipe, sprinkler and pump installations that deliver it. The NFPA standards (13, 13R, 13D, 14, 20) carry the design detail and are not in the exam material. The code itself tells you when each system is needed, which standard applies, and a set of Ontario-specific add-ons. That is what gets tested.

Access for firefighting and access routes

Openings into storeys. Every unsprinklered storey whose floor is less than 25 m above grade needs at least one window or access panel per 15 m of each wall required to face a street. Each opening is at least 1,100 mm high by 550 mm wide (750 mm where dangerous goods are stored or used), with a sill not over 900 mm (OBC Div. B 3.2.5.1.). Unsprinklered basements over 25 m in a horizontal dimension need direct access from a street (3.2.5.2.). Roofs of buildings over 3 storeys with low slopes need stair or hatch access (3.2.5.3.).

When access routes are needed. A building over 3 storeys or over 600 m² in building area needs fire department access routes to the face with the principal entrance and to each face with access openings (3.2.5.4.).

Where (3.2.5.5.):

principal entrance and access openings: 3 m to 15 m from the route, measured from the building face;
with a fire department connection: the pumper can park next to the hydrant serving the connection;
without one: hydrant-to-truck route length plus truck-to-building path not over 90 m;
truck-to-building path not over 45 m in any case, measured to the fire department connection, or to the principal entrance if none.

Design (3.2.5.6.):

Feature	Value
Clear width	6 m (less if shown satisfactory)
Centre line radius	12 m
Overhead clearance	5 m
Change of gradient	max 1 in 12.5 over 15 m
Dead end needing a turnaround	over 90 m

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Water supply

The code's water supply rule is short: every building must have an adequate water supply for firefighting (OBC Div. B 3.2.5.7.). Quantities and pressures come from the standards and the authority having jurisdiction. Two related code rules: a building with fewer than 9 sprinklers may feed them from the domestic system if it can meet the flow, and a shared supply needs separate control valves for the sprinklers and other equipment (3.2.5.12.). Where more than one standpipe is provided, the total supply need not exceed 30 L/s (3.2.5.9.).

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Standpipes, hose connections and hose stations

A standpipe system is required (OBC Div. B 3.2.5.8.) where the building is:

more than 3 storeys, or
more than 14 m from grade to the ceiling of the top storey, or
14 m or less but over the area in Table 3.2.5.8., unless sprinklered throughout.

Selected table values (building area without a standpipe):

Group	1 storey	2 storeys	3 storeys
A	2,500 m²	2,000 m²	1,500 m²
D	4,000 m²	3,000 m²	2,000 m²

Small storage garages up to 15 m high, and some low townhouse-style Group C buildings without common areas, are exempt.

Design is to NFPA 14, a dry standpipe not connected to water does not count, and every standpipe needs a fire department connection (3.2.5.9.). Hose connections go in exits; 64 mm connections may be omitted in unsprinklered buildings up to 25 m high (3.2.5.10.). In unsprinklered floor areas, 38 mm hose stations go within 5 m of exits and elsewhere to cover the floor (3.2.5.11.).

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Automatic sprinkler systems

Which standard (3.2.5.12.):

Standard	Permitted for
NFPA 13	all sprinkler systems (default)
NFPA 13R	residential occupancy throughout, up to 4 storeys, under 3.2.2.47., .49., .51., .52. or .55.; small B3 homes; some retirement homes
NFPA 13D	residential buildings with not more than two dwelling units, or side-by-side units with 1 h separations, own supply and passive purge design

Ontario add-ons that override the standards: no omitted sprinklers in any room or closet in the storey below the roof; sprinklered balconies and decks (over 610 mm deep, not on the top roof) in the 3.2.2.48., .51., .57., .60. and .93. buildings; intermediate-temperature, guarded heads in elevator machine rooms; and a 20 min supply for 13D in a retirement home.

Combustible sprinkler piping is limited to residential and light-hazard occupancies, to ULC/ORD-C199P, behind at least 9.5 mm gypsum board or equivalent unless tested without protection (3.2.5.13.). A walk-in service space with real flooring (not catwalks) is sprinklered, with one waterflow device per storey (3.2.5.14.).

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Fire department connections, freeze protection and fire pumps

A fire department connection for a standpipe or sprinkler system is within 45 m of a hydrant, unobstructed (3.2.5.15.). Fire protection equipment in an unheated area that could be harmed by freezing must be protected (3.2.5.17.); heat tracing on a standpipe riser or sprinkler line is supervised for loss of power (3.2.4.9.(5)). A fire pump, if installed, follows NFPA 20 (3.2.5.18.). Portable extinguishers follow the Fire Code (3.2.5.16.).

Common traps: confusing the 45 m firefighter path with the 45 m connection-to-hydrant limit (both 45 m, different measurements); picking NFPA 13D for an apartment building; forgetting that hose connections are in exits but hose stations are in the floor area.

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Chapter review

Chapter at a glance

One line per section: the idea to carry into the exam. Then the answers that most often catch candidates out.

Chapter at a glance: the key idea in each section
Section	Key idea
Access for firefighting and access routes	When access routes are needed.
Water supply	The code's water supply rule is short: every building must have an adequate water supply for firefighting.
Standpipes, hose connections and hose stations	Small storage garages up to 15 m high, and some low townhouse-style Group C buildings without common areas, are exempt.
Automatic sprinkler systems	Ontario add-ons that override the standards: no omitted sprinklers in any room or closet in the storey below the roof; sprinklered balconies and decks (over 610 mm deep, not on…
Fire department connections, freeze protection and fire pumps	A fire department connection for a standpipe or sprinkler system is within 45 m of a hydrant, unobstructed.

Access for firefighting and access routes
When access routes are needed.
Water supply
The code's water supply rule is short: every building must have an adequate water supply for firefighting.
Standpipes, hose connections and hose stations
Small storage garages up to 15 m high, and some low townhouse-style Group C buildings without common areas, are exempt.
Automatic sprinkler systems
Ontario add-ons that override the standards: no omitted sprinklers in any room or closet in the storey below the roof; sprinklered balconies and decks (over 610 mm deep, not on…
Fire department connections, freeze protection and fire pumps
A fire department connection for a standpipe or sprinkler system is within 45 m of a hydrant, unobstructed.

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Questions on Provisions for firefighting (3.2.5), in the exam format, every answer explained and cited to its article. Sign in to start; a free account gets the free questions.

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Code cited in this chapter

Based on the official 2024 Building Code Compendium on ontario.ca.

OBC Div. B 3.2.5.1. Access to Above Grade Storeys
(1)Except for storeys below the first storey, direct access for firefighting shall be provided from the outdoors to every storey that is not sprinklered throughout and whose floor level is less than 25 m above grade, by at least one unobstructed window or access panel for each 15 m of wall in each wall required to face a street by Subsection 3.2.2.
(2)An opening for access required by Sentence (1) shall
(a)have a sill no higher than 900 mm above the inside floor, and
(b)be not less than 1,100 mm high by not less than
(i)550 mm wide for a building not designed for the storage or use of dangerous goods, or
(ii)750 mm wide for a building designed for the storage or use of dangerous goods.
(3)Access panels above the first storey shall be readily openable from both inside and outside, or the opening shall be glazed with plain glass.
Open OBC Div. B 3.2.5.1. in the code viewer
OBC Div. B 3.2.5.2. Access to Basements
(1)Direct access from at least one street shall be provided from the outdoors in a building that is not sprinklered to each basement having a horizontal dimension more than 25 m.
(2)The access required by Sentence (1) is permitted to be provided by
(a)doors, windows or other means that provide an opening not less than 1,100 mm high and 550 mm wide, with a sill no higher than 900 mm above the inside floor, or
(b)an interior stairway immediately accessible from the outdoors.
Open OBC Div. B 3.2.5.2. in the code viewer
OBC Div. B 3.2.5.3. Roof Access
(1)On a building more than 3 storeys in building height where the slope of the roof is less than 1 in 4, all main roof areas shall be provided with direct access from the floor areas immediately below, either by
(a)a stairway, or
(b)a hatch not less than 550 mm by 900 mm with a fixed ladder.
(2)Clearance and access around roof signs or other obstructions shall provide
(a)a passage not less than 900 mm wide by 1,800 mm high, clear of all obstructions except for necessary horizontal supports not more than 600 mm above the roof surface,
(i)around every roof sign, and
(ii)through every roof sign at locations not more than 15 m apart, and
(b)a clearance of not less than 1,200 mm between any portion of a roof sign and any opening in the exterior wall face or roof of the building in which it is erected.
Open OBC Div. B 3.2.5.3. in the code viewer
OBC Div. B 3.2.5.4. Access Routes
(1)A building which is more than 3 storeys in building height or more than 600 m² in building area shall be provided with access routes for fire department vehicles
(a)to the building face having a principal entrance, and
(b)to each building face having access openings for firefighting as required by Articles 3.2.5.1. and 3.2.5.2. (See Note A-3.2.5.4.(1))
Open OBC Div. B 3.2.5.4. in the code viewer
OBC Div. B 3.2.5.5. Location of Access Routes
(1)Access routes required by Article 3.2.5.4. shall be located so that the principal entrance and every access opening required by Articles 3.2.5.1. and 3.2.5.2. are located not less than 3 m and not more than 15 m from the closest portion of the access route required for fire department use, measured horizontally from the face of the building.
(2)Access routes shall be provided to a building so that
(a)for a building provided with a fire department connection, a fire department pumper vehicle can be located adjacent to the hydrants referred to in Article 3.2.5.15.,
(b)for a building not provided with a fire department connection, a fire department pumper vehicle can be located so that the length of the access route from a hydrant to the vehicle plus the unobstructed path of travel for the firefighter from the vehicle to the building is not more than 90 m, and
(c)the unobstructed path of travel for the firefighter from the vehicle to the building is not more than 45 m.
(3)The unobstructed path of travel for the firefighter required by Sentence (2) from the vehicle to the building shall be measured from the vehicle to the fire department connection provided for the building, except that if no fire department connection is provided, the path of travel shall be measured to the principal entrance of the building.
(4)If a portion of a building is completely cut off from the remainder of the building so that there is no access to the remainder of the building, the access routes required by Sentence (2) shall be located so that the unobstructed path of travel from the vehicle to one entrance of each portion of the building is not more than 45 m.
Open OBC Div. B 3.2.5.5. in the code viewer
OBC Div. B 3.2.5.6. Access Route Design
(1)A portion of a roadway or yard provided as a required access route for fire department use shall
(a)have a clear width not less than 6 m, unless it can be shown that lesser widths are satisfactory,
(b)have a centre line radius not less than 12 m,
(c)have an overhead clearance not less than 5 m,
(d)have a change of gradient not more than 1 in 12.5 over a minimum distance of 15 m,
(e)be designed to support the expected loads imposed by firefighting equipment and be surfaced with concrete, asphalt or other material designed to permit accessibility under all climatic conditions,
(f)have turnaround facilities for any dead-end portion of the access route more than 90 m long, and
(g)be connected with a public thoroughfare. (See Note A-3.2.5.6.(1))
(2)For buildings conforming to Article 3.2.2.51. or 3.2.2.60., no portion of the access route described in Sentence 3.2.2.10.(3) shall be more than 20 m below the uppermost floor level.
Open OBC Div. B 3.2.5.6. in the code viewer
OBC Div. B 3.2.5.7. Water Supply
(1)Every building shall be provided with an adequate water supply for firefighting.
Open OBC Div. B 3.2.5.7. in the code viewer
OBC Div. B 3.2.5.12. Automatic Sprinkler Systems
(1)Except as provided by Sentences (2) to (4) and (9), an automatic sprinkler system shall be designed, constructed, installed and tested in conformance with NFPA 13, "Standard for the Installation of Sprinkler Systems." (See Note A-3.2.5.12.(1))
(2)Instead of the requirements of Sentence (1), NFPA 13R, "Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies," is permitted to be used for the design, construction, installation and testing of an automatic sprinkler system installed
(a)in a building of residential occupancy throughout that is not more than 4 storeys in building height and conforms to Article 3.2.2.47., 3.2.2.49., 3.2.2.51., 3.2.2.52. or 3.2.2.55.,
(b)in a building of Group B, Division 3 occupancy that contains sleeping accommodation for not more than 10 persons and not more than six occupants require assistance in evacuation in case of an emergency,
(c)in a building that contains a retirement home constructed in accordance with Article 3.2.2.55D., or
(d)in a building that contains a retirement home constructed in accordance with Article 3.2.2.55E., where the fire separation required by Sentence 3.3.4.11.(2) on the storey immediately below the roof assembly is continuous to the underside of the roof deck. (See Note A-3.2.5.12.(2))
(3)Instead of the requirements of Sentence (1), NFPA 13D, "Standard for the Installation of Sprinkler Systems in Oneand Two-Family Dwellings and Manufactured Homes," is permitted to be used for the design, construction and installation of an automatic sprinkler system installed
(a)in a building of residential occupancy throughout that contains not more than two dwelling units,
(b)reserved,
(c)in a building of residential occupancy throughout that contains more than two dwelling units, provided
(i)except for a secondary suite, no dwelling unit is located above another dwelling unit,
(ii)all suites are separated by a vertical fire separation having a fire-resistance rating of not less than 1 h that provides continuous protection from the top of the footing to the underside of the roof deck, with any space between the top of the wall and the roof deck tightly filled with mineral wool or noncombustible material,
(iii)each dwelling unit has its own sprinkler water supply provided in accordance with NFPA 13D, "Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes,"
(iv)a passive purge sprinkler system design is used as described in NFPA 13D, "Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes," and
(v)where the sprinkler system is taken into consideration for the reduction of limiting distance, all rooms, including closets, bathrooms and attached garages, that adjoin an exposing building face are sprinklered, notwithstanding any exemption stated in NFPA 13D, "Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes." (See Note A-3.2.5.12.(2))
(4)If a building contains fewer than 9 sprinklers, the water supply for these sprinklers is permitted to be supplied from the domestic water system for the building provided the required flow for the sprinklers can be met by the domestic system.
(5)If a water supply serves both an automatic sprinkler system and a system serving other equipment, control valves shall be provided so that either system can be shut off independently.
(6)Notwithstanding the requirements of the standards referenced in Sentences (1) and (2) for the installation of automatic sprinkler systems, sprinklers shall not be omitted in any room or closet in the storey immediately below a roof assembly. (See Note A-3.2.5.12.(6))
(7)Notwithstanding the requirements of the standards referenced in Sentences (1) and (2) regarding the installation of automatic sprinkler systems, in buildings conforming to Article 3.2.2.48., 3.2.2.51., 3.2.2.57., 3.2.2.60. or 3.2.2.93., sprinklers shall be provided for all balconies and decks, other than,
(a)balconies or decks that are not more than 610 mm in depth measured perpendicular to the exterior wall of the building, or
(b)decks on the uppermost roof of the building. (See Note A-3.2.5.12.(7))
(8)Sprinklers in elevator machine rooms shall have a temperature rating not less than that required for an intermediate temperature classification and shall be protected against physical damage. (See Note A-3.2.5.12.(8))
(9)Except as provided in Subsection 3.2.8., closely spaced sprinklers and associated draft stops need not be installed around floor openings in conformance with NFPA 13, "Standard for the Installation of Sprinkler Systems."
(10)The sprinkler system described in Sentence (3) shall be provided with a minimum 20 min water supply when installed in a retirement home.
Open OBC Div. B 3.2.5.12. in the code viewer

Show all 19 articles

OBC Div. B 3.2.5.9. Standpipe System Design
(1)Except as provided in Sentences (2) to (5), Articles 3.2.5.10. and 3.2.5.11., and Sentence 3.2.4.9.(2), the design, construction, installation and testing of a standpipe system shall conform to NFPA 14, "Standard for the Installation of Standpipe and Hose Systems."
(2)A dry standpipe that is not connected to a water supply shall not be considered as fulfilling the requirements of this Article.
(3)If more than one standpipe is provided, the total water supply need not be more than 30 L/s.
(4)The residual water pressure at the design flow rate at the topmost hose connection of a standpipe system that is required to be installed in a building is permitted to be less than 690 kPa provided
(a)the building is sprinklered throughout,
(b)the water supply at the base of the sprinkler riser is capable of meeting, without a fire pump, the design flow rate and pressure demand of the sprinkler system, including the inside and outside hose allowance, and
(c)fire protection equipment is available to deliver, by means of the fire department connection, the full demand flow rate at a residual water pressure of 690 kPa at the topmost hose connection of the standpipe system. (See Note A-3.2.5.9.(4)(c))
(5)A fire department connection shall be provided for every standpipe system.
Open OBC Div. B 3.2.5.9. in the code viewer
OBC Div. B 3.2.5.8. Standpipe Systems
(1)Except as permitted by Sentence (2), a standpipe system shall be installed in a building that is
(a)more than 3 storeys in building height,
(b)more than 14 m high measured between grade and the ceiling of the top storey, or
(c)not more than 14 m high measured between grade and the ceiling of the top storey but has a building area exceeding the area shown in Table 3.2.5.8. for the applicable building height unless the building is sprinklered throughout.
(2)A standpipe system need not be installed in a storage garage conforming to Article 3.2.2.92., provided the building is not more than 15 m high.
(3)A standpipe system is not required to be installed in a building classified as Group C major occupancy,
(a)that is not more than 4 storeys above grade,
(b)that does not contain a public corridor or other common areas,
(c)where each dwelling unit,
(i)is completely cut off from the remainder of the building so that there is no access to the remainder of the building.
(ii)has direct access to its interior by means of an exterior doorway located not more than 1,500 mm above or below adjacent finished ground level, and
(d)that conforms to the requirements of Article 3.2.2.50. or Article 3.2.2.52.
Open OBC Div. B 3.2.5.8. in the code viewer
OBC Div. B Table 3.2.5.8. Building Limits without Standpipe Systems
Table 3.2.5.8 — Building Limits without Standpipe Systems Forming Part of Sentence 3.2.5.8.(1) Occupancy Classification | Building Area, m² — 1 storey | Building Area, m² — 2 storeys | Building Area, m² — 3 storeys Group A | 2,500 | 2,000 | 1,500 Group C | 2,000 | 1,500 | 1,000 Group D | 4,000 | 3,000 | 2,000 Group F, Division 2 | 1,500 | 1,500 | 1,000 Group F, Division 3 | 3,000 | 2,000 | 1,000
Open OBC Div. B Table 3.2.5.8. in the code viewer
OBC Div. B 3.2.5.10. Hose Connections
(1)Hose connections shall be located in exits, in accordance with NFPA 14, "Standard for the Installation of Standpipe and Hose Systems."
(2)Hose connections are not required within a floor area.
(3)Hose connections shall be provided with sufficient clearance to permit the use of a standard fire department hose key.
(4)Except as permitted by Sentence (5), 64 mm diam hose connections shall be installed in a standpipe system.
(5)Hose connections for 64 mm diam hose are not required in a building that is not more than 25 m high, measured between grade and the ceiling level of the top storey and in which an automatic sprinkler system is not installed.
Open OBC Div. B 3.2.5.10. in the code viewer
OBC Div. B 3.2.5.11. Hose Stations
(1)Hose stations for 38 mm diam hose shall be installed for a standpipe system in a building that is not sprinklered throughout.
(2)Hose stations for a 38 mm diam hose shall be installed for a standpipe system within every floor area that is not sprinklered throughout. (See Note A-3.2.5.11.(2))
(3)Hose stations shall be located in the floor area within 5 m of exits and at other locations to provide coverage of the entire floor area.
(4)A hose station located on one side of a horizontal exit shall be considered to serve only the floor area on that side of the horizontal exit.
(5)A hose cabinet shall be located so that its door, when fully opened, will not obstruct the required width of a means of egress.
(6)Where a building or part thereof is used as a distillery and the building is sprinklered in conformance with Article 3.2.5.12., small hose (38 mm) stations are permitted to be supplied from interior sprinkler piping.
(7)Where a hose station is provided in grain handling and storage facilities in which combustible dusts are produced in quantities or concentrations that create an explosion or fire hazard, fog and fine spray nozzles shall be used instead of nozzles that discharge a solid stream of water to prevent combustible dusts from being raised into suspension.
Open OBC Div. B 3.2.5.11. in the code viewer
OBC Div. B 3.2.5.13. Combustible Sprinkler Piping
(1)Combustible sprinkler piping shall be used only for sprinkler systems in residential occupancies and other light-hazard occupancies. (See Note A-3.2.5.13.(1))
(2)Combustible sprinkler piping shall meet the requirements of ULC/ORD-C199P, "Combustible Piping for Sprinkler Systems."
(3)Except as permitted by Sentence (5), combustible sprinkler piping shall be separated from the area served by the sprinkler system, and from any other fire compartment, by ceilings, walls, or soffits consisting of, as a minimum,
(a)lath and plaster,
(b)gypsum board not less than 9.5 mm thick,
(c)plywood not less than 13 mm thick, or
(d)a suspended membrane ceiling with
(i)steel suspension grids, and
(ii)lay-in panels or tiles having a mass not less than 1.7 kg/m².
(4)Except as permitted by Sentence (5), combustible sprinkler piping may be located above a ceiling, provided that the distance between the edge of any ceiling opening that is not protected in conformance with Sentence (3) and the nearest sprinkler is not more than 300 mm.
(5)Where combustible sprinkler piping has been tested in conformance with ULC/ORD-C199P, "Combustible Piping for Sprinkler Systems," and has been shown to meet the requirements therein without additional protection, conformance to Sentences (3) and (4) is not required.
Open OBC Div. B 3.2.5.13. in the code viewer
OBC Div. B 3.2.5.14. Sprinklered Service Space
(1)An automatic sprinkler system shall be installed in a service space referred to in Sentence 3.2.1.1.(8) if flooring for access within the service space is other than catwalks.
(2)The sprinkler system required by Sentence (1) shall be equipped with waterflow detecting devices, with each device serving not more than 1 storey.
(3)The waterflow detecting devices required by Sentence (2) shall be connected to the fire alarm system, to
(a)initiate an alert signal in a 2-stage system or an alarm signal in a single-stage system, and
(b)indicate separately on the fire alarm system annunciator the actuation of each device.
(4)If a building is sprinklered, sprinkler protection need not be provided in the space below a raised floor in a computer room
(a)if the optical fibre cables and electrical wires and cables in this space conform to the test requirements in Article 3.1.5.25.,
(b)if the building is of noncombustible construction and other combustible components are limited to those permitted in Subsection 3.1.5..
(c)if this space is used to circulate conditioned air and the air handling system is designed to prevent the circulation of smoke upon a signal from a smoke detector,
(d)if all of this space is easily accessible by providing access sections or panels in the raised floor, and
(e)if the computer room is more than 2,000 m² and the annunciator has separate zone indicators of the actuation of smoke detectors located in this space so that the coverage for each zone is not more than 2,000 m².
Open OBC Div. B 3.2.5.14. in the code viewer
OBC Div. B 3.2.5.15. Fire Department Connections
(1)The fire department connection for a standpipe system shall be located so that the distance from the fire department connection to a hydrant is not more than 45 m and is unobstructed.
(2)The fire department connection for an automatic sprinkler system shall be located so that the distance from the fire department connection to a hydrant is not more than 45 m and is unobstructed.
Open OBC Div. B 3.2.5.15. in the code viewer
OBC Div. B 3.2.5.17. Protection from Freezing
(1)Equipment forming part of a fire protection system shall be protected from freezing if
(a)it could be adversely affected by freezing temperatures, and
(b)it is located in an unheated area.
Open OBC Div. B 3.2.5.17. in the code viewer
OBC Div. B 3.2.5.18. Fire Pumps
(1)If a fire pump is installed, it shall be installed in accordance with the requirements of NFPA 20, "Standard for the Installation of Stationary Pumps for Fire Protection." (See Note A-3.2.5.18.(1))
Open OBC Div. B 3.2.5.18. in the code viewer
OBC Div. B 3.2.5.16. Portable Fire Extinguishers
(1)Portable extinguishers shall be provided and installed in all buildings, except within dwelling units, in conformance with the provisions of Division B of the Fire Code made under the Fire Protection and Prevention Act, 1997.
(2)In a Group B, Division 1 major occupancy, portable fire extinguishers are permitted to be located in secure areas, or in lockable cabinets provided
(a)identical keys for all cabinets are located at all supervisory or security stations, or
(b)electrical remote release devices are provided and are connected to an emergency power supply.
Open OBC Div. B 3.2.5.16. in the code viewer