Electric cables. Calculation of the current rating. Thermal resistance-A method for calculating reduction factors for groups of cables in free air, protected from solar radiation
电缆 电流额定值的计算 热阻 一种计算自由空气中受太阳辐射保护的电缆组折减系数的方法
Applicable to any type of cable and group, running horizontally. Information is provided on the reduction in permissible current when cables are mounted adjacent to each other. To be read in conjunction with BS 7769-2.1:1997Cross References:BS 7769:Part 1:Section 1.1BS 7769:Part 2:Section 2. 1