Just like a body’s command center, structured cabling also acts like the nervous system when it comes to installing a network in a building. It keeps everything running seamlessly. But here comes the tricky part: setting up this network is not as easy and simple as it seems to be. It is not just about securing a bunch of wires and calling it a day. The professional needs to be mindful of the cables themselves, like how they will react if a fire breaks out. Because of these fire reactions, structured cabling contractors have to follow the laws and guidelines that are inclusive of the instructions, like which type of cables are suitable to use in different situations. These rules and regulations are significant as they make sure that if there is a fire, the cables won’t make things worse. So, if you are a business owner investing in structured cabling and keen on knowing these things in detail, what those letters on a cable package mean, or why certain cable types are more expensive than others, you are in the right place. In the following section, we will explain the ABCs of fire ratings in structured cabling installation.

An Introduction To Fire Ratings

 Fire ratings show the capacity of the wire to withstand fire while maintaining its structural integrity. These ratings are like a report card for cables, indicating how well they can stand up to fire. These ratings are of immense importance for structured cabling installation. These fire safety standards are not just for the cables; every part of the setup, such as brackets and conduits, has to meet certain fire safety levels. These levels are set by either local laws or international guidelines. When a fire breaks out, the structured cabling contractors make sure that the cables are not making the situation worse by checking their ratings. These ratings are a backup plan that can aid in saving lives and property.

Why Are Fire Ratings Important?

 In the world of structured cabling, the professionals are not just stringing up wires; they are building a safer environment. These San Antonio structured cabling experts know that using the wrong type of cable is like using faulty brakes—it could lead to disaster. Cables that aren’t up to the right fire safety standards can make a small fire a lot worse, damaging more things and even putting lives in danger. However, being mindful of the fire safety ratings is not the only thing that professionals do. Local building codes often have strict rules about what kind of cables can be used, depending on the building’s use and location. So, using the right structured cabling also keeps these contractors out of legal trouble, which is always a good thing.

The Legal Aspect

 Ignoring fire ratings is not at all a rational thing professional structured cabling contractors will ever do. It is not only life-threatening but also against the law. Local laws and rules tell the structured cabling companies exactly what kind of fire-resistant cables can be used by the contractors for their next structured cabling installation project. If any company fails to comply with these regulations, they end up paying a lot of money in fines. Even worse, the authorities could close down any structured cabling companies until the problem is fixed. So, it’s not something the companies can shrug off or hope to fix later. The stakes are high, both for safety and for staying on the right side of the law.

Fire-Rated Cables- Types

 When we discuss fire-rated wires, it’s comparable to discussing various automobile tire options. In the desert, you wouldn’t use snow tires, right? Similar to that, each type of fire-rated cable is made for a certain environment. Let’s get started by briefly describing each category.

Fire Rated Cable

Communications Cable (CM)Communications Riser (CMR)Plenum-Rated Communications
Communications Cable is the most common cable used in low-risk areas, most probably in houses. Although it is the least fire-resistant, it still meets some of the safety standards. It’s like wearing a regular pair of sneakers good for everyday use but not for something like hiking or running a marathon.Communication Riser is designed to be installed between the floors in a building. However, this structured cabling installation is not made for very special areas like plenums. The term plenums refers to the spaces in a building where air circulates for heating and cooling, usually above the ceiling or under the floor. In a nutshell, CMR is better than CM in terms of fire resistance for San Antonio structured cabling.Last but not least, we have Plenum-rated communications. These fire-rated cables are like having all-terrain, weather-proof boots. These are the safest options for fire resistance that are used in San Antonio structured cabling and are also specially designed for sensitive plenum areas. If there’s a fire, this cable won’t give off dangerous fumes or help the fire spread as it meets the toughest fire safety standards.


By knowing about these cable types, you can make a better decision for your business’s structured cabling installation. Each of these types has its features and value. Well, having knowledge about the cables does not mean that you are ready to take on your business-structured cabling project. These installations are not possible without the expert guidance of cabling contractors. These structured cabling contractors play a significant role in ensuring the fire safety of your installation. They have the knowledge and expertise to recommend the appropriate fire-rated cables for your project. Moreover, they are familiar with local building codes in San Antonio structured cabling, making sure your installation is up to standard.

Future-Ready Infrastructure Starts With CMC Communications

 Fire ratings are much more than just letters imprinted on a cable. They are the saviors of your building. A big business building demands the appropriate fire-rated structured cabling installation for the safety of everything. From CP to CMP, each cable has its own role to play. Even though the installation work is done by professionals, understanding these ratings is also essential for a business owner to have effective participation while making decisions with the experts. As among the leading structured cabling companies, we at CMC Communications deal with quality fire-rated cables. Our company has been setting the standard in safe and effective installations, making sure everything’s up to code and as safe as can be. Our structured cabling experts are specially trained and educated with the latest safety regulations. If you are still in doubt, you can always come to us by visiting our website, cmctelco.com.