The 70-year-old cable is suitable for all densely populated places, such as shopping malls, theaters, stations, airports and other public places, as well as important distribution lines, building wiring, home improvement and so on. The service life of this product is not less than 70 years at the average working temperature of 70℃. The allowable working temperature of the cable conductor for a long time is 90℃, 105℃, 125℃; The operating temperature of short circuit (5S) is 250℃.

The insulation layer of the cable adopts irradiation cross-linked double-layer insulation structure, the inner insulation meets the electrical insulation performance, the outer insulation meets the flame retardant performance, and the inner and outer layers meet the high life performance. The reasons and advantages of irradiation cross-linking insulation (compared with ordinary PVC) : the traditional PVC material is not thermal stability, hard and embrittlement at low temperature, and easy to soften at high temperature. Poor impact resistance and aging resistance, it is easy to release harmful gases at high temperatures, and it is easy to drop harmful substances during production and use, which has a bad impact on humans and the environment. Irradiation crosslinking is the use of high-energy electron beams produced by electron accelerator to change the original chain molecular structure into a three-dimensional network molecular structure to form crosslinking, three-dimensional network molecular structure has good thermal stability, insulation electrical properties and mechanical properties have been greatly improved.

The main performance benefits are as follows

1. The cable life is synchronized with the building: 70 years, due to the high temperature resistance level of irradiation cross-linked insulation and high aging temperature, the service life of the cable is extended during the use of cyclic heating.

2. Large carrying capacity: irradiation crosslinked cable from non-crosslinked 70 ° C to 90 ° C, 105 ° C, 125 ° C.

3. Large insulation resistance: Since irradiation crosslinking avoids the use of hydroxide as a flame retardant, it prevents the pre-crosslinking and the decrease of insulation resistance due to the insulation layer's absorption of water in the air. Thus the insulation resistance value is guaranteed.

4. Stable product quality: traditional silane cross-linked cable (commonly known as warm water cable), the quality is affected by water temperature, extrusion process, crosslinking additives and other factors, the quality is unstable, and the quality of irradiation cross-linked cable depends on the radiation dose of the electron beam, the radiation dose is controlled by the computer, reducing human factors, so the quality is stable.

5. High flame retardant: The selection of high flame retardant materials, can be designed according to customer needs ZA, ZB, ZC, cable, flame retardant performance through the GB/T 1966-2005 prescribed combustion test.

6. Halogen-free, low toxicity, low smoke: the light transmittance of first-grade flame retardant wires and first-grade refractory wires is not less than 80%, and the light transmittance of the remaining wires is not less than 60%. The PH value of the combustion gas is not less than 4.3, and the conductivity is not more than 10us/mm.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable.