What is BS IEC 62153‑4‑17 - Metallic cables and other passive components about?
BS IEC 62153 is a series on metallic cables and other passive components. Metallic cable is a cable consisting of several metal strands twisted together. BS IEC 62153‑4‑17 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.
Who is BS IEC 62153‑4‑17 - Metallic cables and other passive components for?
BS IEC 62153‑4‑17 on metallic cables and other passive components is useful for:
- Telecommunication equipment manufacturers
- Telecommunication component manufacturers
- Design engineers
- Quality control personnel
Why should you use BS IEC 62153‑4‑17 - Metallic cables and other passive components?
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. BS IEC 62153‑4‑17 describes the general test for reduction factor of multi-element metallic cables. Test is performed under conditions as Temp = 20 °C ± 10 °C, RH = 55 % ± 25 %.
The cable is set up on a non-conductive and non-metallic table and at least 1 m away from any metallic part. The cable is de-magnetised. The test method described in BS IEC 62153‑4‑17 is intended, in the first instance, to be used as type test. It is possible to use a sample length different from 1 m as described in DIN VDE 0472-507 [2], e.g., 2 m as described in NF F07-024 [3]. In this case, the inductance of the feeding loop is verified according to the method described in BS IEC 62153‑4‑17. Using BS IEC 62153‑4‑17 you can test the reduction factor of multi-element metallic cables used in analogue and digital communication and control.