page_title: Circuit integrity
hierarchical_section_title: Circuit integrity
caption_attribution_description: Image 2 of 5 of governmental fire test in Sweden. This small fire house was loaded with cable trays full of cables. These were connected between the floors, causing cable penetrations between fire compartments. When the penetrants were installed, the government invited their local firestop manufacturers to install their products. Kindling was placed below the trays. These kindling blocks were set on fire. The fire quickly engulfed all trays. Results were mixed. An enormous amount of smoke was generated before the fire was extinguished. Trays twisted and buckled.
context_page_description: Circuit integrity refers to the operability of electrical circuits during a fire. It is a form of fire-resistance rating. Circuit integrity is achieved via passive fire protection means, which are subject to stringent listing and approval use and compliance.
context_section_description: Circuit integrity refers to the operability of electrical circuits during a fire. It is a form of fire-resistance rating. Circuit integrity is achieved via passive fire protection means, which are subject to stringent listing and approval use and compliance.
caption: Fire test in Sweden, showing rapid fire spread through burning of cable jackets from one cable tray to another.
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