In electrical installations, especially where increased fire safety is required, the selection of appropriate materials is crucial. Check what are the rules for selecting fire-resistant cables according to their intended use?
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What devices need to be powered during a fire?
Fire resistant cables and wires are one of the key elements of fire protection systems, providing power to devices necessary during a fire and the function of transmitting alarm signals. This is basic knowledge in the field of fire protection and should not be underestimated under any circumstances.
During a fire, certain devices must remain operational (e.g. alarm signal transmission functions) to support evacuation, extinguishing operations and prevent further spread of fire. Such operations are common in fire protection systems, contributing to improving fire safety for people.
- Installations requiring power supply during fire:
- fire alarm systems,
- ventilation and smoke removal systems,
- emergency lighting,
- access control systems.
To ensure their proper operation, fire-resistant cables must be used, which are able to survive high temperatures and do not lose their functionality. These cables are used in both commercial and industrial buildings, and their proper installation in installations is essential to maintaining the continuity of alarm systems. It is important to rely only on proven cables from a reliable source!
What is the fire triangle and its impact on the design of fire insulation?
Understanding the mechanism of fire formation enables the design and improvement of fire protection systems (including fire alarm systems and smoke control systems).
The fire triangle consists of three elements:
- flammable material;
- oxidizer (e.g. oxygen);
- heat sources.
Fire starts and develops when these three elements occur simultaneously. Therefore, to prevent the spread of fire, installation cables designed to be resistant to these factors are used.
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What are fire curves that simulate the course of typical fires?
Fire curves are mathematical models that simulate the development of fires under a variety of conditions. They are used to improve fire protection by determining how installation cables behave in a real fire .
In practice, this means that cables are tested for their resistance to various levels of temperature and humidity, allowing their durability to be assessed in extreme conditions. Thanks to tests such as the fire curve, manufacturers offer a wide range of cables with different fire resistance that can be successfully used in installations with an increased risk of fire.
Fire-resistant cables and wires must meet certain standards to ensure their reliability.
The most important properties of such products include:
- High temperature resistance. Cables must withstand exposure to fire without losing their function.
- No toxic gas emissions. Using halogen-free cables minimizes the risks associated with smoke poisoning.
- Resistance to water and mechanical damage. During firefighting, cables may be exposed to water, and their durability and resistance to damage is crucial.
- Ability to transmit alarm signals. During a fire, the cables must maintain the function of transmitting alarm signals to ensure the efficient operation of the alarm systems.
The use of fire-resistant cables is not only a matter of safety, but also of meeting legal requirements . For example, halogen-free cables , available from Onninen, do not emit toxic gases during combustion, which reduces the risk of smoke poisoning during an evacuation.
According to regulations, electrical installations must be designed to ensure safety during a fire. Fire-resistant cable allows for increased fire safety and also for improved fire protection in buildings.
Fire-resistant cables are widely used in various installations:
- Fire alarm systems,
- Fire protection systems,
- Installation cables in commercial and industrial buildings,
- Radio frequency signal transmission systems,
- Smoke control systems.
Thanks to these applications, cables and wires offered by Onninen are suitable for installations with an increased risk of fire , guaranteeing reliability and durability.
The use of appropriate fire-resistant cables and reliance on other innovative fire protection solutions should be treated as an investment in safety.
It is worth adding that electricians also play a significant role in this undertaking, successfully eliminating potential threats, for example through professional methods of using and laying cables for internal and external control installations. It is also important to maintain appropriate distances so that a damaged cable does not cause disruption in fire protection installations.
Improving fire protection systems, and thus contributing to maintaining increased fire safety, people and property, should be close to our hearts. Check out Onninen's offer, choose the best products that can be successfully used in various security installations.