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GB/T 21204.1-2007: Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments -- Part 1: Generic specifications
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| GB/T 21204.1-2007 | English | 794 |
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Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments -- Part 1: Generic specifications
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GB/T 21204.1-2007
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Basic data | Standard ID | GB/T 21204.1-2007 (GB/T21204.1-2007) | | Description (Translated English) | Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments -- Part 1: Generic specifications | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K13 | | Classification of International Standard | 29.060.20 | | Word Count Estimation | 40,446 | | Date of Issue | 2007-12-03 | | Date of Implementation | 2008-05-01 | | Adopted Standard | IEC 62012-1-2002, IDT | | Regulation (derived from) | China Announcement of Newly Approved National Standards No. 12 of 2007 (No. 112 overall) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the use in harsh environments quad when Multicore and symmetrical cables definitions and test methods, this cable for digital communication systems, such as integrated services digital network (ISDN), local area networks and data communications systems. This section is a kind of cable design and testing guidelines. | GB/T 21204.1-2007: Multicore and symmetrical pair/quad cables for digital communications to be used in harsh environments -- Part 1: Generic specifications
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Multicore and symmetrical pair/quad cables for digitai communications to be used in harsh environments Part 1. Generic specifications
ICS 29.060.20
K13
National Standards of People's Republic of China
GB/T 21204.1-2007/IEC 62012-1.2002
Digital communication is used in harsh environments
On the quad-core symmetric multi-cable
Part 1. Generic specification
(IEC 62012-1.2002, IDT)
Posted 2007-12-03
2008-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
1 General 1
1.1 Scope 1
1.2 Normative references 1
1.3 Definitions 2
Environmental Conditions 2 1.4
Materials and cable construction 2
2.1 General Description 2
2.2 Cable structure 2
2.3 identification mark 3
Finished cable 4 2.4
3 Test Method 4
3.1 General Description 4
3.2 Electrical Test 4
3.3 Mechanical performance test and measurement size 4
7 3.4 Environmental Testing
3.5 Temperature Test 10
Chemical tests 12 3.6
3.7 Radiation Test 12
Appendix A (normative) Test Method 15 COMPREHENSIVE combustion
A. 1 definitions, symbols and abbreviations 15
A. 2 Test Environment 15
A. 3 test device 15
A. 4 Sample 21
A. 5 test equipment calibration and maintenance 21
A. 6 Sample Preparation 24
A. 7 Test program 25
A. After 8 test cleaning and inspection 26
A. 9 Calculation 26
A. 10 of the report 29
Appendix B (normative) is used to determine the applicability of the method of measuring the heat release oxygen analyzer 30
B. 1 Overview 30
B. 2 Program 30
B. 3 additional precautions 30
Annex C (informative) Bibliography 31 devices
C. 1 Analyzer 31
C. 2 combustion chamber 31
GB/T 21204.1-2007/IEC 62012-1.2002
C. 3 firebrick 31
C. 4 internal windows 31
C. 5 lamp 31
C. 6 recording device 32
C. 7 32 directional detector
C. 8 neutral filter 32
C. 9 gas calorimeter 32
C. 10 standard insulated conductor (standard cable) 32
Annex D (informative) brick size 33
References 34
GB/T 21204.1-2007/IEC 62012-1.2002
Foreword
This section GB/T 21204 "for the harsh environment of digital communications quad-core symmetric multi-cable" - Part 1.
This section identical with IEC 62012-1.2002 "Digital communication is used in harsh environments for quad-core symmetric multi-cable 1
. Generic specification "(in English).
For ease of use, this part of IEC 62012-1.2002 made the following editorial changes.
--- Remove IEC 62012-1.2002 Foreword;
--- According to Chinese customs for some formatting has been modified;
--- To IEC 62012-1. IEC standard publication 2002 cited references to the use of appropriate IEC standard publication of
standard;
--- Some of the statements apply to international standards to apply to our standard formulation.
This part of the Appendix A and Appendix B are normative appendices, Appendices C and D are informative appendices.
This part is proposed by the China Electrical Equipment Industrial Association.
This part of the National Standardization Technical Committee of wire and cable.
This section is drafted. Shanghai Electric Cable Research Institute, Ningbo Dongfang Group Co., Ltd., Haihan Xin Wire and Cable Co., Ltd. Zhejiang Zhaolong
Cable Co., Ltd., Jiangsu Hengtong Group Co., Ltd. in Anhui Xinke cable.
The main drafters of this section. Xinxiu Dong, Meng Qinglin, Yexin Hong, Jia grams, Zhou Hongping, Chengqi Song, Wu Zhi.
GB/T 21204.1-2007/IEC 62012-1.2002
Introduction
User building wiring or other IT wiring cables may have to work in harsh environments. It also may occur due to fire
Can be factory installed condition due. This section should be used in conjunction with the 1.4 specification defined description of special functions. Detailed specification will be based on real
International cable design specification with reference to one or several points.
GB/T 21204.1-2007/IEC 62012-1.2002
Digital communication is used in harsh environments
On the quad-core symmetric multi-cable
Part 1. Generic specification
1 General
1.1 Scope
This section GB/T 21204 specifies the definitions and test methods for the quad-core symmetric multi-cable when used in harsh environments,
Such a cable for digital communication systems, such as Integrated Services Digital Network (ISDN), local area network and data communication systems. This part of these cables
The design and testing guidelines.
1.2 Normative references
The following documents contain provisions which, through reference GB/T 21204 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 2423 (all parts), Environmental testing for electric and electronic products Part 2. Test methods [idt IEC 60068-2 (all section
Minute)]
GB/T 2951.1-1997 cable insulation and sheathing materials test methods - Part 1. General test method Section 1.
Measurement of thickness and overall dimensions --- mechanical tests (idt IEC 60811-1-1.1993)
GB/T 2951.3-1997 cable insulation and sheathing materials test methods - Part 1. General test method Section 3.
Determination of density --- --- Water absorption tests - Shrinkage test (idt IEC 60811-1-3.1993)
GB 6995.2 wire and cable identification Part II. standard color (GB 6995.2-1986, eqv IEC 60304. 1982)
GB/T 11327.1-1999 PVC insulated low-frequency telecommunication cables and wires - Part 1. General test and
Measurement Method (neqIEC 60189-1. 1986)
GB/T 11313-1996 RF connectors - Part 1. Generic specification - General requirements and test methods (idt IEC 61169-1.
1992)
GB/T 14733.1 Telecom telecommunications terminology, channel and Network (GB/T 14733.1-1993, idt IEC 60050 (701))
GB/T 14733.8 term telecommunications telephone (GB/T 14733.8-1993, idt IEC 60050 (722))
GB/T 14733.11 term telecommunications transmission (GB/T 14733.11-1993, idt IEC 60050 (704))
Part 1 Test methods GB/T 17650.1 gases evolved during from cable combustion of materials. the total amount of halogen acid gas
Determination (GB/T 17650.1-1998, idt IEC 60754-1.1994)
Test Apparatus. Part 1 GB/T 17651.1 of cables burning under defined conditions the smoke density determination
(GB/T 17651.1-1998, idt IEC 61034-1.1997)
GB/T 17651.2 of cables burning under defined conditions Measurement of smoke density - Part 2. Test procedure and requirements
(GB/T 17651.2-1998, idt IEC 61034-2.1997)
GB/T 18015.1 digital communications quad Multicore and symmetrical cables Part 1. Generic specification (GB/T 18015.1-
1999, idt IEC 61156-1.1994)
GB/T 18380.1 cables under fire conditions test - Part 1. single insulated wire or cable vertical burning test
Test method (GB/T 18380.1-2001, idt IEC 60332-1.1993)
GB/T 18380.2 cables under fire conditions testing - Part 2. a single vertical insulated copper wire or cable
GB/T 21204.1-2007/IEC 62012-1.2002
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