Combination fuse-switch ( cfs ) unit compartments shall be designed and type-tested for arcing fault containment where the energy level available to the input terminals of the compartment exceeds 1, 000, 000 a2 seconds 试译:间隔式组合熔丝开关柜(cfs)的隔室设计应满足,在隔室的输入端子的有效能级超过100万安培秒之处,能进行闪故障包容以及闪故障包容的型式试验。