QC/T 20-1992Technical specifications for automotive pneumatic stop lamp switches (English PDF)
汽车用气压式制动灯开关技术条件
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
May 21, 1992
Implementation date
June 1, 1993
Scope
QC/T 20-1992 is the English-translated version of 汽车用气压式制动灯开关技术条件.
QC/T 20-1992 is the recommended Chinese automotive industry standard for pneumatic stop lamp switches. It sets out the technical requirements for the switch, the test methods, the inspection rules and the provisions for marking, packaging, transport and storage.
The switches it covers are the pressure-operated type fitted in vehicle braking systems to work the brake lights. It was drawn up as a non-equivalent adoption of DIN 72759-1978 and JIS D5801-1976, and carries the Chinese classification T24.
GB 2423.4, GB 2423.17, GB 2828, GB 4949.2 and ZB T35 001 are cited in the text. Issued on 21 May 1992, it has applied since 1 June 1993.
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Document preview — QC/T 20-1992
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- [Preview only]
- 1 Scope
- 1.1 Brake performance
- 1.2 Heat fade and recovery of brake
- 1.3 Line failure and booster failure
- 1.4 Wear of brake linings (pads)
- 2 Normative references
- 3 Terms and definitions
- 3.2 Abbreviations
- 4 Technical requirements
- 4.1 Arrangement form
- 5 Test Methods
- 5.1 Protocol stack
- 5.2 Node state
- 5.3 Transmission rate
- 5.4 Connectivity
- 5.5 Bit error rate
- 5.6 Wiring harness fault diagnosis
- 5.7 Electrical indexes
- 6 Inspection Rules
- 6.1 Test environment
- 7 Signs, documents, packaging, transportation and storage
- 8 Inspection report
- 9 Marks, packaging
1 Foreword
QC/T 20-1992 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 21 May 1992 and has been in force since 1 June 1993.
The QC/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.
The document runs to 15 pages in English translation.
2 Scope Preview
This standard is the recommended Chinese automotive industry standard for pneumatic stop lamp switches. It sets out the technical requirements for the switch, the test methods, the inspection rules and the provisions for marking, packaging, transport and storage. The switches it covers are the pressure-operated type fitted in vehicle braking systems to work the brake lights. It was drawn up as a non-equivalent adoption of DIN 72759-1978 and JIS D5801-1976, and carries the Chinese classification T24. GB 2423.4, GB 2423.17, GB 2828, GB 4949.2 and ZB T35 001 are cited in the text.
QC/T 20-1992 carries no ICS number and no Chinese Standard Classification code.
This catalogue holds 1,601 other QC/T standards.
Of the 409 QC/T standards that do carry an ICS number, 397 (97%) fall under ICS 43, in the field of road vehicle engineering.
3 Normative references
GB 2423.4
GB 2423.17
GB 2828
GB 4949.2
4 About this standard
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
English translation: about 15 pages
5 Classification and status
Chinese Standard Classification (CCS): T 24
Prefix QC/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
GB 2423.4 · GB 2423.17 · GB 2828 · GB 4949.2
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