Prevention is article 8's duty to take general fire precautions, read with a definition that includes measures to reduce the risk of fire and the risk of its spread: managing ignition sources, fuel and housekeeping. Detection and warning is article 13, which requires premises to be equipped with fire detection and alarm arrangements to the extent appropriate. Means of escape is article 14: routes and exits adequate in number, kept clear and usable at all material times, territory covered in detail on the means of escape glossary page.
Containment has no article of its own by name, but limiting fire and smoke spread through compartmentation and fire doors sits squarely within the general fire precautions and is the physical basis of most residential evacuation strategies. Management and training run through articles 15 to 22: emergency procedures, maintenance so that precautions stay in efficient working order, competent assistance and staff training. A principle without a maintenance regime behind it decays quietly until the day it is needed.