Standard No.:	QC/T 420-2004
English Name:	Fuse-links for motor vehicles
Chinese Name:	汽车用熔断器
Chinese Classification:	T36    Electronic and electrical equipment
Professional Classification:	QC    Professional Standard - Automobile
ICS Classification:	43.040.10 43.040.10    Electrical and electronic equipment 43.040.10
Issued by:	National Technical Committee for Auto Standardization
Issued on:	2004-03-12
Implemented on:	2004-8-1
Status:	valid
Superseding:	QC/T 420-1999
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	150.0
Delivery:	via email in 1 business day

1 Scope This standard specifies terms and definitions, classification, requirements, test methods, inspection rules as well as marking, packing, storage and preservation of fuse-links for motor vehicles. This standard is applicable to fuse-links of 32V at most which are used for short-circuit protection or overload protection of automotive electrical equipment. 2 Normative References The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, its subsequent amendments (excluding the corrected contents) or revisions do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of these references indicated below. For undated references, the latest edition of the referenced document is applicable to this standard. GB/T 191 Packaging - Pictorial Marking for Handling of Goods GB 252-2000 Light Diesel Fuels GB 484-1993 Petrol (Gasoline) for Motor Vehicles GB/T 5337 Nomenclature and Terminology for Automotive Electrical Equipment, Lighting and Instrumentation GB 11121-1995 Gasoline Engine Oils QC/T 238 Storage and Preservation for Automotive Parts QC/T 413-2002 Basic Specification for Automotive Electrical Equipment QC/T 29106-2004 Technical Specification of Low-voltage Electric Harness for Motor Vehicles 3 Terms and Definitions For the purposes of this standard, terms and definitions established in GB/T 5337 as well as the following ones apply. 3.1 Fuse-link A fuse-type electric protective device which is connected to circuit and able to get the circuit disconnected once the current is over specified value and set time.

Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification 5 Requirements 6 Test Methods 7 Inspection Rules 8 Marking, Packing, Storage and Preservation Appendix A (Normative) Ultimate Temperature Appendix B (Normative) Test Fixture