IEC 61156-7:2023 数字通信用多芯对称对绞/四芯电缆.第7部分:传输特性达1200MHz的对称对绞电缆.数字和模拟通信电缆分规范

标准编号：IEC 61156-7:2023

中文名称：数字通信用多芯对称对绞/四芯电缆.第7部分:传输特性达1200MHz的对称对绞电缆.数字和模拟通信电缆分规范

英文名称：Multicore and symmetrical pair/quad cables for digital communications - Part 7: Symmetrical pair cables with transmission characteristics up to 1 200 MHz - Sectional specification for digital and analog communication cables

发布日期：2023-02-10

标准范围

IEC 61156-7:20 23作为IEC 61156-7:20 23 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 61156-7:20 23指定了电缆可用于现有或正在开发的各种通信系统以及模拟系统（例如视频），并且可以同时使用多达四对。从这个意义上说，本部分规范提供了系统开发人员评估新系统以及增强现有系统所需的电缆特性。它覆盖了一根有四对单独屏蔽（S/FTP）的电缆。电缆可以在电缆芯上设置有公共屏蔽。这第二版取消并取代了2003年出版的第一版和修正案1:2012.与上一版相比，这一版包括以下重大技术变化:a.使条款与IEC 61156-1:20 23保持一致；b.删除与筛选衰减相关的条款，因为它不再是要执行的测试（由偶联衰减代替）；c.将IEC 62153-4-2方法（注入钳）替换为IEC 61156-4-5（吸收钳）用于耦合衰减测量，以与IEC 61156系列的所有其他部分一致；d.包括用于耦合衰减测量的IEC 62153-4-9测试方法（三轴），以与IEC 61156系列的所有其他部分一致；e.纳入空白详细规范。

IEC 61156-7:2023 is available as IEC 61156-7:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61156-7:2023 specifies cables that can be used for various communication systems as well as for analogue systems, such as video, that exist or are under development and which may use as many as four pairs simultaneously. In this sense, this sectional specification provides the cable characteristics required by system developers to evaluate new systems as well as to enhance present systems. It covers a cable having four individually screened (S/FTP) pairs. The cable can be provided with a common screen over the cable core. This second edition cancels and replaces the first edition published in 2003 and Amendment 1:2012. This edition includes the following significant technical changes with respect to the previous edition:
a. align clauses with IEC 61156-1:2023;
b. remove the clause related to screening attenuation as it is no longer a test to be performed (replaced by coupling attenuation);
c. replace the IEC 62153-4-2 method (injection clamp) with IEC 61156-4-5 (absorbing clamp) for coupling attenuation measurement to be consistent with all other parts of the IEC 61156 series;
d. include IEC 62153-4-9 test method (triaxial) for coupling attenuation measurement to be consistent with all other parts of the IEC 61156 series;
e. incorporate the blank detail specification.

标准预览图