This product is suitable for distribution equipment with rated voltage of 450V/750V and below, as a connecting wire for electrical instruments.
Production execution standards:
Adopting enterprise standards and referring to GB9330-88
1. Laying temperature and minimum bending radius: When laying cables at a temperature not lower than 0 ℃, there is no need to preheat them beforehand; Cable laying is not limited by drop height, and the minimum bending radius during laying is specified as follows:
① The cable without armor layer should not be less than 6 times the outer diameter of the cable;
② Cables with armor layer or copper tape shielding structure should not be less than 12 times the outer diameter of the cable;
③ Flexible cables with shielding structures should not be less than 10 times the outer diameter of the cable. Working temperature.
2. The long-term allowable working temperature of the cable conductor is 90 ℃. In the event of a short circuit, the maximum temperature of the cable conductor shall not exceed 250 ℃ and the duration shall not exceed 5 seconds.
3. Cable insulation resistance: At the highest rated temperature, the volume resistivity r shall not be less than 1012 W · cm; The insulation resistance constant K i is not less than 36.7M W·
Conditions of Use