标准摘要
[中文适用范围]： 多元件金属通信和控制电缆通常设计有金属屏蔽，以防止电磁场的有害影响，例如电力和电气化铁路线路环境中产生的电磁场[1]1。 IEC 62153的本部分适用于模拟和数字通信与控制中使用的多元金属电缆的折减系数的测试。所描述的方法通常适用于所有屏蔽金属电缆。折减系数描述了频率低于 1 kHz 时电缆屏蔽的屏蔽有效性，并用描述屏蔽和非屏蔽情况的电压比来描述。在测量期间，将被测电缆连接到特定的电流环路布置。 1 方括号中的数字指的是参考书目。 [外文原描述]： IEC 62153-4-17:2018 applies to the testing of the reduction factor of multi-element metallic cables used in analogue and digital communication and control. The described method is generally applicable to all screened metallic cables. The reduction factor describes the screening effectiveness of a cable screen at frequencies below 1 kHz with a ratio of voltages describing the screened and unscreened situation. During the measurement, the cable under test is connected to a specific current loop arrangement.
英文名称Metallic cables and other passive components - Test methods - Part 4-17: Electromagnetic compatibility (EMC) - Reduction Factor