BS IEC 62153-4-9:2018
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Metallic communication cable test methods Electromagnetic compatibility (EMC). Coupling attenuation of screened balanced cables, triaxial method
Hardcopy , PDF
08-18-2020
English
06-14-2018
This part of IEC 62153 applies to metallic communication cables. It specifies a test method fordetermining the coupling attenuation aC of screened balanced cables. Due to the concentricouter tube, measurements are independent of irregularities on the circumference and externalelectromagnetic fields.A wide dynamic and frequency range can be applied to test even super screened cables withnormal instrumentation from low frequencies up to the limit of defined transversal waves inthe outer circuit at approximately 4 GHz. However, when using a balun, the upper frequencyis limited by the properties of the balun.Measurements can be performed with standard tube procedure (respectively with standardtest head) according to IEC 62153-4-4 or with open tube (open test head) procedure.The procedure described herein to measure the coupling attenuation aC is based on theprocedure to measure the screening attenuation aS according to IEC 62153-4-4.
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