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YD/T 838.4-2016Multicore and symmetrical pair/quad cables for digital communications. Part 4: Riser cables (English PDF)

数字通信用对绞／星绞对称电缆第4部分：主干对绞电缆

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

January 15, 2016

Implementation date

April 1, 2016

Scope

YD/T 838.4-2016 is the English-translated version of 数字通信用对绞／星绞对称电缆第4部分：主干对绞电缆.

YD/T 838.4-2016 — This standard specifies the basic structure, main performance, inspection rules, test methods, and packaging requirements of trunk twisted pair cables for twisted pair/symmetrical twisted-pair cables for digital communications.

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Document preview — YD/T 838.4-2016

National Standard of the People's Republic of China

ICS: 33.120.20
Classification: M 42
Replacing: YD/T 838.4-2003

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This standard specifies the basic structure, main performance, inspection rules, test methods, and packaging requirements of trunk twisted pair cables for twisted pair/symmetrical twisted-pair cables for digital communications. This standard is applicable to trunk twisted pair cables (hereinafter referred to as ��cables��) of the trunk wiring between buildings' vertical channels or floors as defined in YD/T 926 ��Building Communication Integrated Wiring System��.

Document data

International classification (ICS): 33.120.20.

Chinese classification (CCS): M42.

Estimated length of the Chinese original: 17,149 words.

Adopted international standard: IEC 61156-4-2009, NEQ.

Supersedes the earlier edition YD/T 838.4-2003.

Standards quoted by this document

GB/T 3953-2009; GB/T 4910-2009; GB/T 6995.2-2008; GB/T 17737.1-2013; GB/T 26572-2011; YD/T 838.1-2016; JB/T 3135-2011

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.

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