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TB/T 2296-2011

Chinese Standard: 'TB/T 2296-2011'
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Detail Information of TB/T 2296-2011; TB/T2296-2011
Description (Translated English): General technical specification for railway axle counters
Sector / Industry: Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard: S60
Classification of International Standard: 45.020
Word Count Estimation: 10,194
Date of Issue: 2011-07-15
Date of Implementation: 2012-01-01
Older Standard (superseded by this standard): TB/T 2296-1991
Quoted Standard: GB/T 191; GB/T 2423.1; GB/T 2423.2; GB/T 2423.4; GB/T 2423.5; GB/T 2423.10; GB/T 4588.3; GB/T 5023.4; GB/T 15157.2; GB/T 21562 - 2008; GB/T 24339.1; GJB 2889; TB/T 1447; TB/T 1448; TB/T 1498; TB/T 3073-2003; TB/T 3074-2003; TB/T 3189; IEC 62279-2002; IEC 62425-2007
Drafting Organization: Beijing National Railway Research and Design Institute Limited communication signals
Administrative Organization: Xi'an Railway Signal Research Institute
Regulation (derived from): ?Railway-Science (2011) 83; Industry Standard Filing Announcement 2012 No.12 (Total No.156);
Summary: This standard specifies the composition of the axle equipment, work environment, technical requirements, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to axle counter equipment design, manufacturing, inspection and maintenance.

TB/T 2296-2011
TB
RAILWAY INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 45.020
S 60
Replacing TB/T 2296-1991
General technical specification for
railway axle counters
铁路信号计轴设备通用技术条件
ISSUED ON. JULY 15, 2011
IMPLEMENTED ON. JANUARY 01, 2012
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 Equipment components ... 6 
4 Equipment working environment ... 6 
5 Technical requirements ... 7 
6 Test methods ... 11 
7 Inspection rules ... 15 
8 Marking, packaging, transportation, and storage ... 16 
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces TB/T 2296-1991 “General technical specification for
railway axle counters”. As compared with TB/T 2296-1991, the main technical
changes of this standard are as follows.
- DELETE the product classification;
- MODIFY the wheel sensor impact indicators;
- MODIFY that when the minimum wheel diameter of the axle detector is 840
mm AND the driving speed is 0 km/h ~ 350 km/h, it shall work reliably;
DELETE the minimum diameter 470 mm of the wheel;
- MODIFY the response time requirements of the output conditions of the
axle counter;
- IMPROVE the reliability indicator;
- ADD the test methods, inspection rules, marking, packaging, transportation,
storage and other requirements.
This standard was proposed by AND shall be under the jurisdiction of Xi'an
Railway Signal Research Institute.
The drafting organization of this standard. Beijing Railway Communication
Signal Research & Design Institute Co., Ltd.
The main drafters of this standard. Fu Jun, Hu Shuxuan, Zhang Yingying, Gu
Guoxin.
This Standard replaces the standard previously issued as follows.
- TB/T 2296-1991.
General technical specification for
railway axle counters
1 Scope
This standard specifies the composition, working environment, technical
requirements, test methods, inspection rules and markings, packaging,
transportation and storage of axle counters.
This standard is applicable to the design, manufacture, inspection and
maintenance of axle counter.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this Standard.
GB/T 191 Packaging - Pictorial marking for handling of goods (GB/T 191-
2008, ISO 780.1997, MOD)
GB/T 2423.1 Environmental testing for electric and electronic products - Part
2. Test methods - Test A. Cold (GB/T 2423.1-2008, IEC 60068-2-1.2007, IDT)
GB/T 2423.2 Environmental testing for electric and electronic products - Part
2. Test methods - Test B. Dry heat (GB/T 2423.2-2008, IEC 60068-2-2.2007,
IDT)
GB/T2423.4 Environmental testing for electric and electronic products - Part
2. Test methods Test Db. Damp heat, cycle (12h + 12h cycle) (GB/T 2423.4-
2008, IEC 60068-2-30.2005, IDT)
GB/T 2423.5 Environmental testing for electric and electronic products - Part
2. Test methods - Test Ea and guidance. Shock (GB/T2423.5-1995, idt IEC
60068-2-27.1987)
GB/T 2423.10 Environmental testing for electric and electronic products -
Part 2. Test methods Test Fc. Vibration (sinusoidal) (GB/T2423.10-2008, IEC
60-8-2-6.1995.IDT)
GB/T 4588.3 Design and use of printed boards (GB/T 4588.3-2002, IEC
60326-3.1991, EQV)
GB/T 5023.4 Polyvinyl chloride insulated cables of rated voltages up to and
including 450 V/750 V - Part 4. Sheathed cables for fixed wiring (GB/T
5023.4-2008, IEC 60227-4.1997, IDT)
GB/T 15157.2 Connectors for frequencies below 3 MHz for use with printed
boards - Part 2. Detail specification for two-part connectors with assessed
quality for printed boards for basic grid of 2.54 mm (0.1 in) with common
mounting features (GB/T 15157.2-1998, idt IEC 60603-2.1995)
GB/T 21562-2008 Railway application - Specification and demonstration of
reliability, availability, maintainability and safety (RAMS) (IEC 62278-2002,
IDT)
GB/T 24339.1 Railway applications - Communication signaling and
processing systems - Part 1. Safety-related communication in closed
transmission systems (GB/T 24339.1- 2009, IEC 62280-1.2002, IDT)
GJB 2889 XC series high reliable small circular wire spring electrical
connector - Specification
TB/T 1447 Insulation resistance of signal products
TB/T 1448 Insulation and voltage resistance for communication signal
products
TB/T 1498 Technical specification for packaging of railway communication
signal products
TB/T 3073-2003 Railway signaling equipment - Electromagnetic
compatibility test and limits
TB/T 3074-2003 Railway signaling equipment - Lightning electromagnetic
pulse protection - Technical conditions
TB/T 3189 Specification of railway signal axle counter application system
IEC 62279-2002 Railway applications - Communications, signaling and
processing systems - Software for railway control and protection systems
IEC 62425-2007 Railway applications - Communication, signaling and
processing systems - Safety related electronic systems for signaling
a) The communication interface shall adopt RS232 or RS422 communication
mode with photoelectricity isolation;
b) The communication interface mechanical characteristics shall be DB9
connectors.
5.2 Technical indicators of axle counter
5.2.1 The detection capability shall comply with the following requirements.
a) When the wheel diameter is not less than 840 mm, the equipment shall
be capable of detecting the train speed of 0 km/h ~ 350 km/h;
b) When the wheel diameter is not less than 350 mm, the equipment shall
be capable of detecting the train speed of 0 km/h ~ 100 km/h;
5.2.2 The response time shall comply with the following requirements.
a) The response time of the track section from the occupied to the cleared
output conditions shall not be greater than 2 s;
b) The response time of the track section from cleared to the occupied output
conditions shall not be greater than 1 s.
5.2.3 The axle counter sensor shall be capable of reliable operation in all types
of steel rails of 43 kg/m and above.
5.2.4 The structure and installation of outdoor trackside equipment shall comply
with the requirements of railway construction boundary.
5.2.5 The outdoor trackside equipment shall be capable of reliable operation
under disturbances such as steel rail traction currents and harmonics in the
electrified section.
5.3 Hardware requirements of axle counter
5.3.1 The system design of the equipment shall comply with the relevant
provisions in GB/T 21562-2008, GB/T 24339.1, and IEC 62425-2007.
5.3.2 The safety integrity level of the axle counter shall reach to the level 4
requirements of GB/T 21562-2008.
5.3.3 The host computer (computing unit) of axle counter shall adopt a 2-take-
2 safety computer architecture and, if necessary, a 2-by-2-take-2 safety
computer structure.
5.3.4 Key components shall comply with the following provisions.
a) Initial detection. in accordance with the provisions of this standard and
under the standard atmospheric conditions, MAKE the equipment be
subjected to appearance inspection and functional testing.
b) Condition test. After the equipment is placed in the standard atmospheric
condition for 2 hours, PUT it into the test chamber in the normal working
position.
c) Severity rating. -5 °C (indoor equipment) and -40 °C (outdoor equipment),
with the duration in 2 h.
d) Intermediate testing. During the test, the equipment is energized and kept
working. After 2 hours of heat preservation, CONTINUE keeping the
temperature to conduct appearance inspection and functional testing. The
test results shall comply with the requirements of 5.1 and 5.2.
e) Final testing. After the test, RESTORE the test chamber to standard
atmospheric conditions and MAKE the equipment be restored for 2 h
under standard atmospheric conditions; then CONDUCT appearance
inspection and functional testing. The test results shall comply with the
provisions of 5.1, 5.2, and 5.3.
Related standard:   TB/T 1413-2016  TB/T 2081-2016
   
 
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