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TB/T 1484.4-2010

Chinese Standard: 'TB/T 1484.4-2010'
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Detail Information of TB/T 1484.4-2010; TB/T1484.4-2010
Description (Translated English): Specification for cables on board rolling stock - Part 4: Zero halogen low smoke and flame retardant cables for communication networks
Sector / Industry: Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard: S35
Classification of International Standard: 29.280
Word Count Estimation: 16,195
Date of Issue: 2010-08-22
Date of Implementation: 2011-02-01
Older Standard (superseded by this standard): TB/T 1484.3-2001
Quoted Standard: GB/T 2951.1-1997; GB/T 2951.2-1997; GB/T 2951.3-1997; GB/T 2951.4-1997; GB/T 3048.8; GB/T 3048.9; GB/T 4909.3; GB/T 4910-2009; GB/T 6995.2; GB/T 8969; GB/T 8970; GB/T 16033; GB/T 17650.2-1998; GB/T 17651.1-1998; GB/T 17651.2-1998; GB/T 18015-2007; GB/T 18204.23; GB/T 18204.24; GB/T 19666-2005; JB/T 8137; IEC 60189-1; IEC 60708; IEC 61156; IEC 6215-4-3-2006; EN 50305-2002
Drafting Organization: CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd.
Administrative Organization: CSR Zhuzhou Electric Locomotive Research Institute Co., Ltd.
Regulation (derived from): Railway Technology (2010) 145
Summary: This standard specifies the rolling stock (including EMU) with a communication network cable product structure, technical requirements and test methods and inspection rules. This standard specifies the products for rolling stock (including EMU), also applies to other rail vehicle data information transmission.

TB/T 1484.4-2010
TB
RAILWAY INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 29.280
S 35
Replacing TB/T 1484.3-2001
Specification for cables on board rolling stock -
Part 4. Zero halogen low smoke and flame retardant
cables for communication networks
机车车辆电缆
第 4 部分. 无卤低烟阻燃通信网络用电缆
ISSUED ON. AUGUST 22, 2010
IMPLEMENTED ON. FEBRUARY 01, 2011
Issued by. Ministry of Railways of the People’s Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Operating characteristics ... 5 
4 Model, category, specification and indication method of product ... 5 
5 Technical requirements and test methods ... 7 
6 Inspection rules and test ... 13 
7 Delivery conditions ... 14 
Annex A (Normative) Diagram of Arrangement of end-A of Cable-core ... 16 
Foreword
TB/T 1484 Cables on board rolling stock is divided into the following parts.
- Part 1. Standard wall insulation cables up to AC 3 kV;
- Part 2. Thin wall insulation cables;
- Part 3. 30 kV Ethylene propylene rubber insulation single-phase electric power cables;
- Part 4. Low-smoke halogen-free flame retardant cables for communications and network.
This Part is Part 1 of TB/T 1484.
This Part is drafted according to the rule in GB/T 1.1-2009.
This Part replaces TB/T 1484.3-2001 TB/T 1484.3-2001 Specification for railway locomotive and
vehicle cables for booking - Part 3. 30 kV Ethylene propylene rubber insulation single-phase
electric power cables. Compared with TB/T 1484.3-2001, the main technical changes of this Part
are as follows.
— Add toxicity test and other chemical analysis method (see 5.12.4);
— Add model/name/specification and structure (see Chapter 4).
This Part was proposed by and shall be under the jurisdiction of CSR Zhuzhou Institute Co., Ltd.
This Part is drafted by CSR Zhuzhou Institute Co., Ltd., Railway Products Quality Supervision and
Inspection Center AND Zhongtian Technology Co., Ltd.
Drafters of this Part. LIU Zhongxiu, TIAN Yongping and LIANG Bin
The old editions replaced by this Part are as follows.
— TB/T 1484-1983;
— TB/T 1484.3-2001.
Specification for Cables on Board Rolling Stock – Part 4. Zero Halogen Low
Smoke and Flame Retardant Cables for Communication Networks
1 Scope
This Part specifies the structure, technical requirements, test methods and inspection rules of
cables for communication networks on board rolling stock (including CRH train).
The products that this Part specifies are applicable to rolling stock (including CRH train), and also
applicable to the data transmission between other railway vehicles.
2 Normative references
The following documents are indispensable for application of this document. For the dated
documents so quoted, only the dated versions apply to this document. For the undated documents
so quoted, the latest versions (including all modification sheets) apply to this document.
GB/T 2951.1-1997 Common test methods for insulating and sheathing materials of electric
cables Part 1. Methods for general application Section one. Measurement of thickness and
overall dimensions - Tests for determining the mechanical properties (idt IEC60811-1-1.1993)
GB/T 2951.2-1997 Common test methods for insulating and sheathing materials of electric
cables - Part 1. Methods for general application - Section two. Thermal ageing methods (idt IEC
60811-1-2.1985)
GB/T 2951.3-1997 Common test methods for insulating and sheathing materials of electric
cable - Part 1. Methods for general application - Section three. Methods for determining the
density - Water absorption tests - Shrinkage test (idt IEC 60811-1-3.1993)
GB/T 2951.4-1997 Common test methods for insulating and sheathing materials of electric
cables - Part 1. Methods for general application (idt IEC 60811-1-4.1985)
GB/T 3048.8 Test methods for electrical properties of electric cables and wires - Part 8. AC
voltage test
GB/T 3048.9 Test methods for electrical properties of electric cables and wires - Part 9. Spark
test of insulated cores
GB/T 4909.3 Test methods for bare wires - Part 3. Tensile test
GB/T 4910-2009 Tinned round copper wire
GB/T 6995.2 Markings for electric wires and cables - Part 2. Standard colours
GB/T 8969 Air quality - Determination of nitrogen oxides in ambient air - Griess-saltzman
method
GB/T 8970 Air quality - Determination of sulfur dioxide in a ambient air - Tetrachlomercurate
(TCM), pararosaniline
GB/T 16033 Workplace air - Determination of hydrogen cyanide and cyanides - Sodium
isonicotinate-sodium barbiturate spectrophotometric method
GB/T 17650.2-1998 Test on gases evolved during combustion of materials from cables - Part
2. Determination of degree of acidity of gases by measuring pH and conductivity (idt IEC 60754-
2.1991)
GB/T 17651.1-1998 Measurement of smoke density of cables burning under defined conditions
- Part 1. Test apparatus (idt IEC 61034-1.1997)
GB/T 17651.2-1998 Measurement of smoke density of cables burning under defined conditions
- Part 2. Test procedure and requirements (idt IEC 61034-2.1997)
GB/T 18015-2007 Multicore and symmetrical pair/quad cables for digital communications
GB/T 18204.23 Methods for determination of carbon monoxide in air - Gas chromatographic
method
GBIT 18204.24 Methods for determination of carbon dioxide in air - Gas chromatographic
method
GB/T 19666-2005 Flame retardant and fire resistant wires and cables General
JB/T 8137 Delivery drums for wires and cables
IEC 60189-1 Low-frequency cables and wires with PVC insulation and PVC sheath - Part 1.
General test and measuring methods
IEC 60708 Low-frequency cables with polyolefin insulation and moisture barrier polyolefin
sheath
IEC 61156 Multicore and symmetrical pair / quad cables for digital communications
IEC 62153-4-3.2006 Metallic communication cable test methods - Part 4-3. Electromagnetic
compatibility (EMC) - Surface transfer impedance - Triaxial method
EN 50305.2002 Railway applications - Railway rolling stock cables having special fire
performance - Test methods
3 Operating characteristics
3.1 Working frequency of cable. maximum 20 MHz.
3.2 Working temperature of cable. -40°C ~ +85°C.
3.3 Allowable bending radius of cable. for fixed laying, it is 3 times of the external diameter of cable;
for unfixed laying, it is 5 times of the external diameter of cable.
3.4 It shall be used in the place where there is no mineral oil and fuel pollution.
4 Model, category, specification and indication method of product
4.1 Model
4.1.1 The model of cable is composed of model code and specification code.
5.8.4 Non-hygroscopic non-metal rip-rope shall be placed under sheath.
5.9 Manufacturing length of cable
The manufacturing length of cable shall be the integer-multiples of 100 m~110 m.
5.10 Electrical properties of cable
5.10.1 General
For electrical properties, please refer to Table 7.
Table 7 Electrical Properties (20°C)
SN Item Unit
Specification of conductor
mm2 Test method Conversion formula 0.50 0.75 1.0 1.5
1 Direct-current resistance of single conductor R≤ Ω/100 m 3.96 2.60 1.95 1.33 GB/T 3048.4
Measured
value /L
2 Pair direct-current resistance unbalance ᇞR % 3 IEC 60708-1 —
Insulated dielectric strength, AC 50 Hz
5 min, Not break down
Between conductors
Conductor and shield
kV
1.5
1.5
Insulation resistance ≥
Between pairs
Between line-core and shield
Between pair shield and cable-core shield
mΩ· km
GB/T 3048.6
Measured
value×L×0.
Working capacitance Cm≤
MVB 1.5 MHz
WTB 1.0 MHz
nF/100 m
4.6
6.5
IEC 60189-1 Measured value /L
Shield capacity unbalance, ᇞCm<
MVB 1.5 MHz
WTB 1.0 MHz
pF/100 m
IEC 60189-1 Measured value /L
Transfer impedance <
MVB 20 MHz
WTB (differential transfer impedance)
mΩ/m
IEC 62153-4-3 —
Attenuation≤
MVB 1.5 MHz
3.0 MHz
MTB 1.0 MHz
2.0 MHz
dB/100 m
1.5
2.0
1.0
1.4
GB/T 18015.1
Measured
value×L×0.
Near-end crosstalk attenuation ≥
MVB(0.75 MHz-3.0 MHz)
WTB (0.5 MHz~2.0 MHz)
dB
GB/T 18015.1 —
Characteristic impeda......
Related standard:   TB/T 1484.1-2017  TB/T 1484.2-2017
   
 
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