Over deze norm
|Commissie||Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessoires|
Multi-element metallic communication and control cables are often designed with metallic screen against harmful effects of electromagnetic fields e.g. generated in the environment of electric power and electrified railway lines 1. This part of IEC 62153 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.
|Engelse titel||Metallic cables and other passive components - Test methods – Part 4-17: Electromagnetic compatibility (EMC) - Reduction Factor|