Өрттің таралуын пассивті түрде сақтау жүйелері

Component or system to passively prevent the spread of fire

Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. Examples of passive systems include floor ceilings and roofs, fire doors, windows, and wall assemblies, fire resistant coatings, and other fire and smoke control assemblies. Passive fire protection systems can include active components such as fire dampers.

Prescriptive systems have been tested and verified by governmental authorities including DIBt, the British Standards Institute (BSI) and the National Research Council's Institute for Research in Construction. These organisations publish wall and floor assembly details in codes and standards that are used with generic standardised components to achieve the quantified fire resistance ratings. Germany and the UK publish prescriptive systems in standards such as DIN4102 Part 4 (Germany) and BS476 (United Kingdom). Listed systems are certified by testing in which the installed configuration must comply with the tolerances and materials set out in the certification listing. The United Kingdom is an exception to this as certification is required but not testing.

Fire tests in the UK are reported in the form of test results but building authorities do not require written proof that the materials that have been installed on site are actually identical to the materials and products that were used in the test. The test report is often interpreted by engineers as the test results are not communicated in uniformly structured listings. In the UK, and other countries which do not require certification, the proof that the manufacturer has not substituted other materials apart from those used in the original testing is based on trust in the manufacturer.