1. Product features and uses.
Fire resistant control cable NH-KYJVP NH-KYJV has high fire resistance, under the direct combustion of flames, there will be no short circuit and short circuit fault within a certain period of time, therefore, in the event of a fire, it is conducive to reducing losses, and is suitable for all kinds of electrical equipment and control systems in places with greater fire danger and high importance of fire safety as connecting wires.
2. Product implementation standard: enterprise standard, fire resistance characteristics meet the requirements of GB T19666-2005 (IEC331).
3. Characteristics of fire resistant control cable NH-KYJVP NH-KYJV.
1. AC rated voltage: U0 U 450 750V
2. Working temperature: flame retardant PVC insulation and sheath 70 and 105; fluoroplastic insulation and sheath 200 and 260; XLPE insulation 90; Low-smoke halogen-free flame retardant polyolefin 70; Low-smoke halogen-free flame retardant cross-linked polyolefins 90 and 125.
3. Ambient temperature: flame retardant PVC sheath: fixed laying-40, non-fixed laying-15
Fluoroplastic insulation and sheath: fixed laying-60; Non-fixed laying-20
4. Fire resistance characteristics:
5. The cable installation and laying temperature is not less than 0, and the fluoroplastic sheathed cable is not less than -25.
6. The refractory layer is between the conductor and the insulation, and the insulation can be appropriately thinned, and the thickness after thinning is not less than 80% of the nominal thickness.
7. The recommended allowable bending radius for laying: the unarmored cable is not less than 6 times the outer diameter of the cable;
The armored cable is not less than 12 times the outer diameter of the cable;
Fluoroplastic insulation and sheath material cable is not less than 8 times the outer diameter of the cable.
Fourth, the basic model and name.
Note: 22 is added after the armored cable model, and the type of soft structure cable shielding can be in the form of P2, P3, etc.
5. Code name and meaning.
Sixth, the main technical indicators.