What are the advantages of fire-resistant cables?
Release date:
2022-09-20 13:20
Source:
Fire-resistant cable It refers to wire and cable products used in fire incidents. When external flames are still burning, maintaining the integrity of the wire and cable circuits while ensuring the normal operation of connected equipment—what exactly are the advantages of fire-resistant cables?
1. There is also a special type of cable called a fire-resistant cable, made with seamless copper tubing as the conductor and magnesium oxide as the insulation material. Thanks to the unique properties of its materials, this fire-rated electrical cable is neither flammable nor does it support flame spread.
2. The amount of acidic smoke produced during fire exposure is significantly reduced, especially when ceramic refractory materials are added, greatly enhancing the fire-resistant and flame-retardant performance. Notably, even under water spray and mechanical impact during combustion, the cable remains intact enough to maintain circuit continuity. Operation completed.
3. Currently, a representative type of cable is the ceramic silicone rubber cable, primarily used for low-voltage fire-resistant wire and cable applications. It exhibits physical properties such as high-temperature melting, high viscosity, and subsequently forms glassy or ceramic-like characteristics. Low-melting-point glass powder, matched to the temperature of silicone rubber cable raw materials, is added during manufacturing. After exposure to high temperatures during a fire, this material expands to create a protective layer that closely matches the metal, ensuring insulation integrity. As a result, even under intense fire conditions, these fire-resistant cables can maintain the continuity of electrical circuits, buying valuable time to safeguard lives and property.
The primary applications of fire-resistant cables
Fire-resistant cables are cables that can maintain their normal operational characteristics under specific test conditions. These features play a crucial role in modern urban and industrial buildings.
1. Power cables and control lines for fire pumps, sprinkler pumps, and fire elevators.
2. Power control cables for fire-resistant rolling shutters, electric fire doors, smoke-control system fans, smoke exhaust dampers, and fire dampers.
3. Manual alarm lines for the fire alarm system, as well as fire alarm broadcasting and telephone lines.
4. Install closed-circuit television systems in high-rise buildings or critical facilities such as airports and subway stations.
5. Centralize emergency lighting circuits, and provide control and protection for power lines.
6. Critical relay protection circuits and operation power lines in large and medium-sized substations.
7. Computer monitoring cable.
Recommended Articles
Service hotline:
Office phone:+86 0731-22588828 +86 0731-22588886
Address: No. 2999, Donghang Road, Lusong District, Zhuzhou City, Hunan Province, China
San Shen Group QR Code
Shentong Optoelectronics QR Code
Powered by:www.300.cn Changsha