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Flexible mineral insulated fireproof cable

Flexible mineral insulated fireproof cable is suitable for trunk lines, fire lines, escape and rescue systems, such as emergency lighting, fire monitoring, alarm systems, elevator systems, smoke exhaust systems, and control lines. The cable can also be used in places or other places where the cable circuit is susceptible to the spread of fire or directly affected by fire.


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  • Product Description
    • Commodity name: Flexible mineral insulated fireproof cable

    Flexible mineral insulated fireproof cable is suitable for trunk lines, fire lines, escape and rescue systems, such as emergency lighting, fire monitoring, alarm systems, elevator systems, smoke exhaust systems, and control lines. The cable can also be used in places or other places where the cable circuit is susceptible to the spread of fire or directly affected by fire.

    Scope of application
    Flexible mineral insulated fireproof cable is suitable for trunk lines, fire lines, escape and rescue systems, such as emergency lighting, fire monitoring, alarm systems, elevator systems, smoke exhaust systems, and control lines. The cable can also be used in places or other places where the cable circuit is susceptible to the spread of fire or directly affected by fire.

    Executive standard
    This product implements the standards GB/T 34926-2017 "rated voltage 0.6/1kV and below mica mineral insulated corrugated copper sheathed cables and terminals" and JG/T 313-2014 "rated voltage 0.6/1kV and below metal sheathed inorganic mineral insulated cables and terminals". Meet BS 6387:2013 "Test method for fire resistance of cable line integrity test under flame conditions" and BS 8491:2008 "Evaluation method for fire resistance integrity of large diameter power cables used as components of smoke and heat control systems and other active fire safety systems".

    Use Features
    1. Main features: The finished cable can be produced continuously without length limitation and no joint in the middle; It can produce large-section multi-core cables and can be made into branch cables. It is resistant to high temperature (test environment 950-1000 ℃, burning for 3h), smokeless, non-toxic, corrosion-resistant, aging-resistant, radiation-resistant, explosion-proof, insect-resistant, can automatically eliminate the damage of natural forces (thermal expansion and cold contraction) and electrical power, and greatly prolonging. The cable conductor is a multi-stranded copper wire with low impedance, large current carrying capacity and good flexibility. The insulation is made of halogen-free material, and the insulation layer is tightly and evenly wrapped with inorganic mineral insulation tape (high temperature resistance above 1300 ℃). Moisture resistance,
    2. Ambient temperature during cable installation; For cables with non-metallic sheaths, the ambient temperature during installation should not be lower than 0 ℃: there are no restrictions on metal sheathed cables.
    3. Minimum bending radius of cable installation:

    Minimum allowable bending radius for cable installation

    Cable outer diameter mm

    Minimum bending radius of cable

    D≤ 12

    6D

    12 ≤ D≤ 20

    10D

    20<D≤ 40

    15D

    D>40

    20D

    Note: D is the cable diameter

    4. Rated working temperature: the maximum conductor temperature is 90 ℃ during normal operation of the cable, and the maximum conductor temperature is 250 ℃ during short circuit (the longest continuous 5S).
    5. The rated voltage of the cable is divided into two categories: U0/U:450/750, U0/U(Um):0.6/1kV
    450/750V control cable: in the voltage representation U0/U of the cable:
    U0-the effective value of the voltage between any insulated conductor and "ground" (the metal sheath of the cable or the surrounding medium):
    U-is the effective value between any two-phase conductors of the multi-core cable system.
    0.6/1(1.2)kV power cable: In the voltage representation U0/U(Um) of the cable:
    U0: Rated power frequency voltage between conductor to ground or metal shield for cable design;
    U: Rated power frequency voltage between conductors for cable design;
    Um: The maximum value of the "maximum system voltage" that the device can withstand.

    routine test

    Product voltage

    Test voltage kV

    450/750V
    0.6/1kV

    3.5
    3.0

    Duration 5(min) No insulation breakdown

    Common cable model

    Model

    Rated voltage

    Name

    RTTZ/YTTW
    RTTYZ/YTTWY
    RTTVZ/YTTWV
    RTTZ/YTTW
    RTTYZ/YTTWY
    RTTVZ/YTTWV

    450/750V/500V
    450/750V/500V
    450/750V/500V
    0.6/1kV
    0.6/1kV
    0.6/1kV

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    Copper core mica tape mineral insulated corrugated copper sheathed power cable
    Copper core mica tape mineral insulated corrugated copper sheathed polyolefin sheathed power cable
    Copper core mica tape mineral insulated corrugated copper sheathed polyolefin sheathed power cable

    Note: voltage class 450/750V, 500V, suitable for 1.5~4mm2,1~19 core control cable.

    Cable marking method
    Schematic diagram of cable structure

    波纹铜护套型

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