When firestopping a through penetration, how must the Electrical Worker install the firestopping?

The correct answer is based on the principle that firestopping is a critical safety measure that must be performed according to established specifications. Specifications provide detailed guidelines on how materials should be applied and the requirements for achieving effective fire resistance. This ensures that the assembly maintains its fire-rated integrity, preventing the spread of fire and smoke through penetrations in fire-rated walls, floors, or ceilings.

Installing firestopping as specified is essential because it guarantees the use of approved materials and methods that have been tested and proven to comply with fire safety regulations. This not only protects property and life but also meets legal and insurance requirements. Adhering to specifications minimizes the risk of using inadequate materials or improper techniques, which could lead to catastrophic failures during a fire event.

Other choices, such as acting at discretion or only addressing situations perceived as hazardous, can lead to inconsistent practices and significant risks. The urgency of performing the task quickly without proper adherence to specifications could compromise fire safety. Thus, following specifications is paramount for ensuring effective fire protection.