Grade-1 Registered Fire Engineer (China) key terms

The energy released per unit time in the stated fire model, distinct from total fuel energy or a material temperature.

A defined test-related temperature associated with an ignitable liquid-vapor mixture, not a universal spontaneous-ignition temperature.

Addition of surrounding fluid into a moving plume or stream, which can increase total mass flow while reducing temperature.

A specified scenario or mathematical representation used for an identified analysis objective, not a prediction guaranteed for every real fire.

Available safe egress time under the actual relevant criteria, limited by the earliest governing unacceptable condition in the stated analysis.

Required safe egress time under the chosen model, including its defined recognition, response and movement components rather than travel alone.

Maintenance of the intended protective boundary through actual joints, penetrations and openings, not merely the rating of one separate product.

A defined relevant condition used to assess an exposure or route objective, requiring appropriate assumptions and uncertainty treatment.

A defined relationship between initiating conditions, logic, outputs and feedback, used to assess actual coordinated system behavior.

A product-specific acknowledgement or sound operation that must not be confused with removing the alarm cause or restoring every function.

A condition reducing an intended protective capability, requiring the actual authorized management, communication and restoration process.

Information about the actual state or response of a field device, distinct from proof that a control command was merely sent.

Pressure observed under the defined flowing condition, distinct from a static no-flow reading or proof of all possible demands.

A discharge relationship whose coefficient and pressure units must match the stated equation and output units before calculation.

A signal associated with observed flow under the actual device and arrangement, not independent proof of complete suppression effectiveness.

The time over which the defined demand must be sustained under the actual basis, distinct from achieving one instantaneous flow.

Replacement air entering a smoke-control arrangement, whose amount and velocity can affect extraction, pressure and plume behavior.

An undesirable exhaust condition drawing cleaner lower-layer air instead of the intended smoke, limiting effective removal under the actual geometry.

The relevant leakage and boundary condition of a protected space, important to a defined retained concentration or pressure objective.

The actual human contact with extinguishing agent and atmosphere, requiring appropriate safety assessment rather than assumptions from a clean-agent label.

The actual applicable requirements, criteria, conditions and method used to judge the evidence, identified before a compliance conclusion.

A shared component or condition that can defeat nominally separate protective paths and invalidate an independence assumption.

A simplified calculation using stated probability and consequence, distinct from a complete life-safety or risk-distribution assessment.

Appropriate confirmation that the physical cause and intended protective functions have been addressed under the authorized process.