There are so many different cable types and specifications that a detailed explanation would be quite tedious. Today, we'll focus on one type: "flexible fire-resistant cable." This term might sound unfamiliar to non-professionals, but the name alone clearly indicates it's a flexible cable. This type of cable is fire-resistant; also known as mineral insulated cable, it offers excellent flexibility, shielding, corrosion resistance, practicality, and a long service life, making it widely used in demanding environments.
Flexible Fire-Resistant Cable Product Models
BTLY Copper Core Isolated Flexible Mineral Insulated Fire-Resistant Cable, rated voltage 0.6/1kV.
BBTRZ Copper Core Non-Metallic Sheathed Flexible Mineral Fire-Resistant Cable, rated voltage 0.6/1kV.
HFTGB Copper Core Ceramic Insulated Metal Sheathed Flexible Mineral Fire-Resistant Cable, rated voltage 0.6/1kV.
BTTW Copper Core Corrugated Copper Sheathed Flexible Inorganic Mineral Insulated Fire-Resistant Cable, rated voltage 750V.
YTTW copper core, corrugated copper sheath, flexible inorganic mineral insulated fire-resistant cable, rated voltage 750V.
YTTWG copper core, smooth copper sheath, flexible inorganic mineral insulated fire-resistant cable, rated voltage 500V.
YTTWV copper core, corrugated copper sheath, PVC outer sheath, flexible inorganic mineral insulated fire-resistant cable, rated voltage 750V.
DW-YTTWY copper core, corrugated copper sheath, low-smoke, halogen-free polyolefin outer sheath, flexible inorganic mineral insulated fire-resistant cable, rated voltage 750V.
Functions of Flexible Fire-Resistant Cables
1. Good flexibility: The cable can be wound on a reel with a bending radius of ≤20D (D is the cable's outer diameter).
2. Large cross-section: Single-core cables can have a cross-section of up to 1000mm, and multi-core cables can have a cross-section of up to 240mm.
3. Long Continuous Length: Whether single-core or multi-core cable, its length can meet power supply requirements, with each cable available in continuous lengths up to 1000m.
4. Corrosion Resistance: Organically insulated fire-resistant cables sometimes require plastic or iron conduits. Plastic conduits are susceptible to aging and brittleness, while iron conduits are prone to rust. Fire-resistant cables, with their copper sheaths, do not require conduits, as the copper sheaths offer excellent corrosion resistance.
5. Excellent Shielding: When fire-resistant cables are laid in the same shaft as information and control lines, the copper sheath shielding prevents interference with the information transmitted by the signal and control lines.
6. Excellent Fire Resistance: The fire resistance rating not only meets the national standard GB12666.6 Class A 950°C, 90 minutes, but also meets the UK BS6387-1994 test requirements for Class A 650°C, 3 hours, Class B 750°C, 3 hours, and Class C 950°C, 3 hours. Furthermore, the cables can withstand water spray and mechanical impact during combustion.
7. Safety and Reliability: Fire-resistant cables can provide power even in flames, minimizing fire damage and providing exceptionally reliable protection for personnel. Their copper sheath is an excellent conductor, making it an ideal grounding conductor. It also extends the entire cable length, significantly enhancing the sensitivity and reliability of grounding protection.
8. Long Service Life: Inorganic insulation materials offer high temperature resistance and are less susceptible to aging, resulting in a lifespan many times longer than organic-insulated cables.
Flexible fire-resistant cables offer significant advantages and are widely used in various environments. If you require cables and wires in your daily life, consider their advantages to determine whether they are practical and necessary. Of course, consider all factors when purchasing; the most suitable option is the best.
