Double-layer co-extruded insulated irradiation cross-linked halogen-free low-smoke flame-retardant long-life power cable

70 years of high-life double-layer co-extrusion insulation irradiation cross-linked halogen-free low-smoke flame retardant power cable, cross-linking process using the international advanced electronic accelerator physical irradiation cross-linking technology, improve the mechanical and physical properties of the cable, electrical properties, with high and low temperature, flame retardant, wear resistance, oil resistance and high physical and mechanical properties and electrical properties.

Scope of application
This product is suitable for distribution networks or industrial installations with rated voltages of 0.6/1kV and below. It can be used in densely populated places such as high-rise buildings, subways, tunnels, shopping malls, theaters, stations, airports, and important distribution lines and building wiring.

Executive standard
This product implements the standard JG/T442-2014 "rated voltage 0.6/1kV double-layer co-extruded insulation irradiation cross-linked halogen-free low-smoke flame retardant power cable". The service life of the cable is derived according to the test method specified in GB/T 11026.1, and the service life of the cable is derived by using the Avery Nius (Arrhenius) curve.

Use Features
1. Cable long-term working temperature according to the temperature rating is divided into: 90 ℃, 105 ℃, 125 ℃;
2. The ambient temperature of cable laying shall not be lower than 0 ℃;
3. Minimum bending radius during cable installation: single-core cable: unarmored 20D, armored 15D; Multi-core cable: unarmored 15D, armored 12D,D is the outer diameter of the cable.
4. Short circuit (the longest duration of not more than 5S) cable conductor temperature shall not exceed 250 ℃;
5. The rated voltage U0/U(Um) of the cable is 0.6/1(1.2)kV.
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.
6. Cable 70 years life code G.

routine test
The routine test voltage of the cable is 3.5kV, and the breakdown does not occur in 5min.

Cable model name
Cable model name: WDZ-GYJSYJ(F): double-layer co-extruded insulation irradiation cross-linked low-smoke halogen-free flame retardant power cable;
WDZN-GYJSYJ(F): double-layer co-extruded insulated radiation cross-linked low-smoke halogen-free flame-retardant fire-resistant power cable;
"Z" according to the combustion level ZA, ZB, ZC to distinguish. For example: WDZA-GYJS(F)-105, WDZB-GYJS(F)-125.