同轴通信电缆第6-4部分:75-7型有线电视下降电缆详细规范

[中文适用范围]： 本部分适用于IEC 61196-6中描述的同轴通信电缆。它规定了75-7型CATV引入电缆的要求。这些电缆用于CATV分配系统、监控与控制系统、卫星电视接收系统以及双向混合光纤同轴电缆（HFC）。工作频率范围为5 MHz至3000 MHz。 [外文原描述]： IEC 61196-6-4:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 61196-6-4:2020 applies to coaxial communication cables described in IEC 61196-6. It specifies the requirements for 75-7 type CATV drop cables. These cables are used in CATV distribution systems, surveillance & control systems, satellite television receiving systems and as bidirectional hybrid fibre coaxes (HFC). The operating frequency is from 5 MHz to 3 000 MHz. This part of IEC 61196 is to be used in conjunction with IEC 61196-1:2005 and IEC 61196‑6:2009. It determines the layout and style with respect to the model and type. This second edition cancels and replaces the first edition, published in 2018. This edition includes the following significant technical changes with respect to the previous edition: - designation of variants including construction details; - consistent screening classes; - bending test only for flexible cables.