The construction of fire barriers or the application of passive protection is recommended for environments that have a significant fire contents or need subdivision.
In order to completely contain a fire outbreak, it becomes necessary to construct a vertical or horizontal fire barrier, employing plates or blankets with intumescent painting finishing on the surface, with the objective of providing a first barrier in case an accident occurs arising from the electric cabling or from the environment outside the protected environment.
For vertical buildings, compartmentation is recommended for all floors closing electric, telephone and data shafts, where either rigid or flexible products can be employed, which facilitates the simple removal and enables the passage of a new circuit whenever necessary, only demanding relocation with no loss of protection.
For the cable tray system and electric cables, continuous or intermittent intumescent painting can be employed to protect and contain the fire outbreak, in case such outbreak occurs through electric circuits in the cable tray or bed.
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