1. Large current carrying capacity; irradiated cross-linked cable, after irradiation by high-energy electron beam, the molecular structure of the material changes from linear to three-dimensional network structure, and the temperature resistance level is increased from 70°C to 90°C, 105 in non-crosslinking. °C, 125°C, 135°C, or even 150°C, the current carrying capacity of the cable of the same specification is increased by 15-50%.
2. Insulation resistance is large; since the irradiated cross-linked cable avoids the use of hydroxide as a flame retardant, pre-crosslinking occurs during cross-linking and the insulation resistance is lowered due to absorption of moisture in the air by the insulating layer. Thereby the insulation resistance value is ensured.
3. Long service life, strong overload capacity; due to the high temperature resistance of the polyolefin material after irradiation cross-linking, the aging temperature is high, so the service life of the cycle heating during the use of the cable is prolonged.
4, environmental protection, safety; because the materials used in the cable are halogen-free environmentally friendly materials, the burning characteristics of the cable meet environmental requirements.
5, product quality temperature; the quality of traditional warm water cross-linked cable is affected by water temperature, agent technology, cross-linking additives and other factors, the quality is unstable, and the quality of the irradiated cross-linked cable depends on the irradiation dose of the electron beam. Irradiation dose is controlled by computer, and there are fewer artificial factors, so the quality is stable.
The radiation cross-linked cable has the ability to catch fire and has the ability to prevent or delay the spread of the flame. The overload force is strong, and once it is on fire, it has the characteristics of no halogen, low smoke, no toxicity, no corrosion, and is suitable for high-rise buildings and hotels. Hospitals, subways, nuclear power plants, tunnels, power plants, ore, petroleum, chemicals, etc.
Irradiation cable flame retardant grade
Irradiation cable irradiation cable environmental protection power line representation method
1. The combustion characteristic code and cable type of the irradiated low-smoke halogen-free cable are composed of two parts.
Flame retardant grade A ZA
Flame retardant grade B ZB
Flame retardant C grade ZC
Flame retardant D grade ZD
Refractory N
1. The allowable operating temperature of irradiated low-smoke and halogen-free wire and cable can be 90 °C, 105 °C, 125 °C, 135 °C, etc. When indicated, the temperature grades are 105 °C, 125 °C, and 135 °C. 90 ° C can be omitted.
2. The product is expressed by model, rated voltage, number of cores, nominal cross section and this standard number.
Irradiation cable environmental protection power line
Irradiation cross-linked cable model and name