Flame-retardant cable? Fire-resistant cable? They're both fire-resistant cables, so what's the difference between them? While they perform similar functions, they're different cable types. If they function similarly, why produce an additional cable type? Let's explore the differences.
What is flame-retardant and fire-resistant cable?
1. Flame retardant: Under specified test conditions, when a sample is burned, the flame spreads within a limited range and extinguishes itself after the fire source is removed. This property prevents or delays the occurrence or spread of flames.
2. Fire resistant: The ability to operate continuously under specified conditions when burned under a specified fire source and duration, maintaining line integrity.
Flame-retardant and fire-resistant cable is a combination of the two.
It's easy to confuse flame-retardant and fire-resistant cables. While flame-retardant cables have many advantages that make them more suitable for chemical companies, such as low halogen and low smoke, in general, fire-resistant cables can replace flame-retardant cables, but flame-retardant cables cannot replace fire-resistant cables.
What is the difference between flame-retardant cables and fire-resistant cables? Fire-resistant cables can replace flame-retardant cables, but flame-retardant cables cannot replace fire-resistant cables. 1. The principles of fire-resistant cables and flame-retardant cables are different. The flame-retardant principle of halogen-containing cables relies on the flame-retardant effect of halogens, while the flame-retardant principle of halogen-free cables relies on the precipitation of water to lower the temperature to extinguish the fire. Fire-resistant cables rely on the fire-resistant and heat-resistant properties of the mica material in the fire-resistant layer to ensure that the cable can work normally even in a fire. 2. The structure and materials of fire-resistant cables are also different from those of flame-retardant cables. The basic structure of flame-retardant cables is: (1) The insulation layer is made of flame-retardant materials; (2) The sheath and outer sheath are made of flame-retardant materials; (3) The tape and filling are made of flame-retardant materials. Fire-resistant cables usually have a fire-resistant layer added between the conductor and the insulation layer. Therefore, theoretically, a fire-resistant layer can be added to the structure of the flame-retardant cable to form a cable that is both flame-retardant and fire-resistant. In some critical locations, the use of wires and cables is clearly regulated. For example, communications rooms are crucial, profoundly impacting our lives and production. Flame-retardant and fire-resistant cables, as mentioned above, are commonly used.
Flame-retardant and fire-resistant cables utilize special processes and materials, making them significantly more expensive than ordinary cables. Thieves are discerning buyers, but if they steal power cables, their lives could be in jeopardy. Protecting power and communications cables is everyone's responsibility; damaging them carries penalties.
