摘要
结合GB/T 16895.15-2002/idt IEC60364-5-523:1999《建筑物电气装置第5部分:电气设备的选择和安装第523节:布线系统载流量》标准,指出在工程设计中应正确选择低压电线电缆的载流量,区分线缆敷设在槽盒、托盘与梯架内的载流量不同,并注意多回路或多根多芯电缆不同敷设方式成束敷设的降低系数,建议积极采用IEC标准,提高电气安全性。
The paper points out that the current-carrying capacity of the Low-voltage wires and cables shall be correctly selected during the engineering design and distinguished when laying in trunking, trays and ladders, in combination with GB/T 16895. 15-2002/idt IEC 60364-5-523： 1999 《Electrical installations of buildings-Part 5： Selection and erection of electrical equipment-Section 523： Current-carrying capacities in wiring systems》. In addition, the reduction factor of multi-loop or multi-core cables laid in bundles shall be considered. It is suggested to adopt the IEC standard to improve the electric safety.
出处
《建筑电气》
2014年第10期49-52,共4页
Building Electricity
关键词
IEC标准
载流量
降低系数
槽盒
托盘
梯架
电气火灾
防电击
IEC standard
current-carrying capacity
reduction factor
trunking
tray
ladder
electric fire
protection against electric shock
