Part 3 Health and Safety Flashcards
CBCO
What is a fire compartment?
An enclosed space in a building separated from all other parts by construction that provides a fire separation with a required fire-resistance rating.
What does fire-resistance rating mean?
The time (in minutes or hours) a material or assembly can withstand fire, heat transmission, and flame passage under specific test conditions outlined in the Code.
What is a fire separation?
A construction assembly that acts as a barrier to prevent the spread of fire.
What is a major occupancy?
The principal use of a building or part of it, including any subsidiary occupancies that are integral to the main use.
What is an A1 occupancy?
Assembly occupancies intended for producing and viewing performing arts.
What is an A2 occupancy?
Assembly occupancies not elsewhere classified in Group A.
What is an A3 occupancy?
Assembly occupancies of the arena type.
What is an A4 occupancy?
Assembly occupancies where occupants gather in the open air.
What is a B1 occupancy?
Detention occupancies where people are restrained or unable to self-preserve due to security measures beyond their control.
What is a B2 occupancy?
Care and Treatment occupancies.
What is a B3 occupancy?
Care occupancies.
What is a C occupancy?
Residential occupancies.
What is a D occupancy?
Business and personal services occupancies.
What is an E occupancy?
Mercantile occupancies.
What does occupancy mean?
The use or intended use of a building or part of it for sheltering or supporting persons, animals, or property.
What is a low-hazard industrial occupancy (Group F, Division 3)?
An industrial occupancy where the combustible content is not more than 50 kg/m² or 1,200 MJ/m² of floor area.
What is a medium-hazard industrial occupancy (Group F, Division 2)?
An industrial occupancy where the combustible content exceeds 50 kg/m² or 1,200 MJ/m² of floor area, but is not classified as a high-hazard industrial occupancy.
What is a high-hazard industrial occupancy (Group F, Division 1)?
An industrial occupancy with enough highly combustible, flammable, or explosive materials that, due to their inherent characteristics, create a special fire hazard.
What makes a high-hazard industrial occupancy unique?
It contains sufficient quantities of highly combustible, flammable, or explosive materials that pose a special fire hazard due to their inherent properties.
When can a building with multiple major occupancies be deemed a single major occupancy?
When all occupancies belong to the same Group classification or, if divided, the same Division classification per Table 3.1.2.1.
How is an arena-type building used occasionally for trade shows classified?
As a Group A, Division 3 occupancy.
Under what conditions can a police station with detention quarters be classified as Group B, Division 2?
If it’s not more than 1 storey in height and 600 m² in building area.
When can a Group B, Division 3 occupancy be classified as Group C within Part 3?
If occupants live as a single housekeeping unit in a suite with ≤10 people sleeping, and ≤2 need evacuation assistance.
How are buildings storing baled combustible fibres classified?
As medium-hazard industrial occupancies (Group F, Division 2).
When can a building with multiple major occupancies be deemed a single major occupancy?
When all occupancies belong to the same Group classification or, if divided, the same Division classification per Table 3.1.2.1.
How is an arena-type building used occasionally for trade shows classified?
As a Group A, Division 3 occupancy.
Under what conditions can a police station with detention quarters be classified as Group B, Division 2?
If it’s not more than 1 storey in height and 600 m² in building area.
When can a Group B, Division 3 occupancy be classified as Group C within Part 3?
If occupants live as a single housekeeping unit in a suite with ≤10 people sleeping, and ≤2 need evacuation assistance.
How are buildings storing baled combustible fibres classified?
As medium-hazard industrial occupancies (Group F, Division 2).
When can a restaurant be classified as a Group E major occupancy within Part 3?
If it’s designed for ≤30 persons consuming food or drink.
What’s the fire-resistance rating exception for a building ≤3 storeys with ≤2 dwelling units and a Group E occupancy?
The fire separation between them needs only a 1-hour fire-resistance rating.
When do fire separation requirements not apply at openings through horizontal separations?
In buildings meeting Articles 3.2.8.2 to 3.2.8.8, at the vertical plane around the perimeter of the opening.
What is an exposing building face?
The part of a building’s exterior wall facing one direction, from ground level to the top storey ceiling, or, if divided into fire compartments, the exterior wall of a fire compartment facing one direction.
What does limiting distance refer to?
The distance from an exposing building face to a property line, street centerline, lane, public thoroughfare, or an imaginary line between two buildings or fire compartments on the same property, measured at right angles.
What is a fire compartment?
An enclosed space in a building separated from all other parts by construction providing a fire separation with a required fire-resistance rating.
How is the exposing building face determined in a building with fire compartments?
It’s the exterior wall of a specific fire compartment facing one direction.
What factors does limiting distance measure between?
An exposing building face and a property line, street centerline, lane, thoroughfare, or an imaginary line between buildings or fire compartments on the same property.
What role does fire separation play in a fire compartment?
It encloses the space, separating it from the rest of the building with a required fire-resistance rating.
What is an unprotected opening in the context of an exposing building face?
A doorway, window, or opening without a closure that has the required fire-protection rating, or any part of a wall in the exposing building face with a fire-resistance rating less than required.
What types of openings can be considered unprotected?
Doorways, windows, or other openings lacking a closure with the necessary fire-protection rating.
How does a wall contribute to an unprotected opening?
If part of the exposing building face wall has a fire-resistance rating lower than required, it’s considered an unprotected opening.
What makes a closure insufficient for an opening to be protected?
It lacks the required fire-protection rating.
Why is the fire-resistance rating important for an exposing building face?
It determines whether an opening or wall section is unprotected if it falls below the required rating.
How must an exterior wall enclosing an attic or roof space above an exposing building face be constructed?
It must conform to the requirements for the exposing building face.
What governs the fire-resistance rating, construction, and cladding of an exposing building face for Groups A, B, C, D, or F-3?
Table 3.2.3.7, unless exceptions in Sentences (3), (4), or Articles 3.2.3.10 and 3.2.3.11 apply.
When can an exposing building face of a low-hazard industrial occupancy building avoid a fire-resistance rating?
If it’s a one-storey building per Article 3.2.2.91, uses noncombustible construction, isn’t a loadbearing wall, and has a limiting distance of at least 3 meters.
What are the conditions for a low-hazard industrial building’s exposing building face to use noncombustible construction without a fire-resistance rating?
It must not be a loadbearing wall, and the limiting distance must be ≥3 meters.
What type of occupancy is eligible for the exception in Article 3.2.3.11?
Low-hazard industrial occupancy (Group F, Division 3) conforming to Article 3.2.2.91.
