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GB/T 17929-2007: Quartz clocks vehicles
Status: Valid GB/T 17929: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 17929-2007 | English | 469 |
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3 days [Need to translate]
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Quartz clocks vehicles
| Valid |
GB/T 17929-2007
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| GB/T 17929-1999 | English | 559 |
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4 days [Need to translate]
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Quartz clocks for vehices
| Obsolete |
GB/T 17929-1999
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PDF similar to GB/T 17929-2007
Basic data | Standard ID | GB/T 17929-2007 (GB/T17929-2007) | | Description (Translated English) | Quartz clocks vehicles | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y11 | | Classification of International Standard | 39.040.20 | | Word Count Estimation | 18,162 | | Date of Issue | 2007-12-05 | | Date of Implementation | 2008-09-01 | | Older Standard (superseded by this standard) | GB/T 17929-1999 | | Quoted Standard | GB/T 2828.1; GB/T 2829; GB/T 17619-1998 | | Regulation (derived from) | National Standard Approval Announcement 2007 No.12 (Total No.112) | | 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 classification of automotive quartz, requirements, test methods, inspection rules, signs, packaging, transport and storage. This standard applies to all types of automotive quartz clock, clock part and vehicle information displays inside the composite display, clock movement may also refer to the use of the car. | GB/T 17929-2007: Quartz clocks vehicles---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Quartz clocks vehicles
ICS 39.040.20
Y11
National Standards of People's Republic of China
Replacing GB/T 17929-1999
Automotive Quartz
Posted 2007-12-05
2008-09-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 17929-1999 "Vehicle quartz clock."
This standard and GB/T 17929-1999 main technical differences are as follows.
--- Cancel the "Definitions" chapter;
--- Increasing the strength of the connection terminals, key reliability, fatigue resistance and drop buttons (4.8,4.9,4.10,4.13);
--- Increased aging resistance, durability canceled (4.12);
--- Increased resistance to temperature cycling, thermal shock resistance, and temperature and humidity cycling (4.15);
--- Increasing the resistance of the power supply voltage variation (4.21);
--- Increased electromagnetic compatibility (4.22);
--- Cancel the magnetic properties;
--- Modify the instantaneous difference between the test method (5.2.4).
Appendix A of this standard is a normative appendix.
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Technical Committee clocks (SAC/TC160) centralized.
This standard was drafted. Wuhan Cheng Sheng Electronics Co., Ltd. Guangzhou Fuda Watch Industry, the Institute of Light Industry watch.
The main drafters of this standard. Min Ye, Yang Jianmin, Chen, Jiang Tianxiang, Yuanling Xu, Guo Xu.
This standard replaces the standards previously issued as follows.
--- GB 6047-1985;
--- QB/T 3718-1999;
--- GB/T 17929-1999.
Automotive Quartz
1 Scope
This standard specifies the automotive quartz (referred to as the automobile clock) classification, requirements, test methods, inspection rules, marking, packaging, transport and
Storage.
This standard applies to all types of automotive quartz clock, clock-vehicle information display and on-board part of the composite display, automobile clock movement
Referring also to use.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan
(GB/T 2828.1-2003, ISO 2859-1.1999, IDT)
GB/T 2829 periodic inspection Sampling procedures and tables (suitable for process stability test)
GB/T 17619-1998 vehicles to electromagnetic radiation immunity limits and methods of measurement of electrical and electronic components
Category 3
3.1 according to the movement structure is divided into.
Z class --- Analog.
S Class --- digital.
3.2 divided by Operating Voltage.
A type --- nominal operating voltage of DC12V.
Type B --- nominal operating voltage of DC24V.
4 Requirements
4.1 Operating Temperature
Automobile clock in a temperature range of -30 ℃ ~ 80 ℃ should be kept away.
4.2 voltage range
4.2.1 A bell cars in DC9V ~ DC16V operating voltage range should be kept away.
4.2.2 B-type automobile clock in DC18V ~ DC30V operating voltage range should be kept away.
4.3 Reliability walk
Automobile clock should stop and go in everyday working conditions, in the course of the pre-carry away the accumulated error should not exceed 1min.
4.4 Instantaneous difference day
The average rate in the day with poor test equipment measured a short period of time to go to the instantaneous difference in seconds/day (s/d) representation. Automobile clock transient
Day difference should be within -1.5s/d ~ 1.5s/d range.
4.5 Operating Current
Automobile clock operating current shall comply with the provisions in Table 1.
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