If fire cable is within 8 feet of the floor, how often should it be securely fastened?

When fire cable is installed within 8 feet of the floor, it must be securely fastened at regular intervals to ensure safety and compliance with electrical codes. The requirement to fasten fire cable every 18 inches is established to prevent sagging or movement that could damage the cable or create a potential hazard. This regular fastening helps maintain the integrity of the cable installation and ensures that it remains secure against physical impact or environmental factors.

The 18-inch fastening interval balances practicality and safety, allowing for adequate support without excessive fastening that would complicate installation and maintenance. Additionally, this standard is consistent with industry best practices and codes, thus promoting reliability and safety in fire alarm and detection systems.