page_title: Firewall (construction)
hierarchical_section_title: Firewall (construction)
caption_attribution_description: English: Some of the systems of the peat-fired power plant in Toppila, Oulu, Finland. Suomi: Toppilan turvevoimalan järjestelmiä Oulussa.
context_page_description: A firewall is a fire-resistant barrier used to prevent the spread of fire for a prescribed period of time. Firewalls are built between or through buildings, structures, or electrical substation transformers, or within an aircraft or vehicle.
context_section_description: A firewall is a fire-resistant barrier used to prevent the spread of fire for a prescribed period of time. Firewalls are built between or through buildings, structures, or electrical substation transformers, or within an aircraft or vehicle.
caption: Example of a firewall used to inhibit the spread of a fire at an electrical substation.
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