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QC/T 29106-2014 English PDF

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QC/T 29106-2014: Technical Specification of Automobile Wire Harness
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Status: Valid

QC/T 29106: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
QC/T 29106-2014125 Add to Cart Auto, 9 seconds. Technical Specification of Automobile Wire Harness Valid
QC/T 29106-2004799 Add to Cart 5 days Technical specification of low-voltage electric harness for motor vehicles Obsolete
QC/T 29106-1992399 Add to Cart 3 days (Low automotive wiring harness technical conditions) Obsolete

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QC/T 29106-2014: Technical Specification of Automobile Wire Harness

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT29106-2014
ICS 43.040.10 E 36 QC Automobile Industry Standard of the People’s Republic of China Replacing QC/T 29106-2014 Technical Specification of Automobile Wire Harness Issued on. MAY 06, 2014 Implemented on. OCTOBER 1, 2014 Issued by. Ministry of Industry and Information Technology of the People's Republic of China Ministry of Industry and Information Technology of the People's Republic of China

Table of Contents

Foreword... 8 1 Scope... 10 2 Normative References... 10 3 Terms and Definitions... 12 4 Requirements... 13 5 Test Method... 25 6 Inspection Rules... 33 7 Marking, Packaging, Storage and Custody... 35 Annex A (Normative) Requirements for the Cross-section of Crimping Area and Crimping Juncture of Terminals and Wire Conductors... 37 Annex B (Normative) Heat-shrinkable Double-wall Tubes for Automobile Wire Harnesses... 39 Annex C (Normative) Pressure-sensitive Adhesive Tapes for Automobile Wire Harnesses... 42 Annex D (Normative) Bellows for Automobile Wire Harnesses... 44

1 Scope

This Standard specifies the requirements, test methods, inspection rules, marking, packaging, storage and custody of automobile wire harnesses (hereinafter referred to as wire harnesses). This Standard applies to various automobile wire harnesses with the nominal voltage less than 60 V (including single-wire assemblies).

2 Normative References

The following documents are essential to the application of this Standard. For the dated references, only the dated editions apply to this Standard. For the undated references, the latest edition (including all amendments) applies to this Standard. GB/T 2423.1-2008 Environmental Testing - Part 2.Test method - Test A. Cold GB/T 2423.2-2008 Environmental Testing - Part 2.Test method - Test B. Dry heat GB/T 2423.17-2008 Environmental Testing for Electric and Electronic Products - Part 2.Test Method - Test Ka. Salt mist GB/T 2423.22-2002 Environmental Testing for Electric and Electronic Products - Part 2.Test Method - Test N. Change of Temperature GB/T 2828.1-2012 Sampling Procedures for Inspection by Attributes – Part 1. Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-Lot Inspection GB/T 4086 Glass Cleaning Agent

3 Terms and Definitions

Those listed below and the definitions in QC/T 417.1-2001 are adopted in this Standard. 3.1 Main Stem A portion of a wire harness in which two or more wires are taped together, as shown in Figure 1. 3.2 Lateral A portion of a wire harness in which the ends of the wires are not taped or a single wire, as shown in Figure 1. 3.3 Embranchment Point The intersection of main stem and main stem or main stem and lateral center line in the wire harness, as shown in Figure 1. 3.4 Juncture The connection point of wire and wire, as shown in Figure 1. Figure 1 Diagram of Wire Harness 3.8 Clip A component mounted on a wire harness for fixing with a vehicle body or other corresponding components. 3.9 Desiccation Bound The area which requires no special waterproofing treatment because a wire harness is installed in cab, compartment, trunk or other parts.

4 Requirements

4.1 General Requirements 4.2 Appearance 4.2.1 The installation of wires and parts, the position of embranchment points and the embranchment direction shall meet the requirements of drawings and technical requirements. 4.2.2 The wires and parts shall be free from the defects including damage, and deformation. 4.2.3 The terminals shall not come off the protection sleeve. 4.2.4 After the terminals with seal plug for insulated crimping are installed with the protection sleeves, the seal plug shall not retreat from the protection sleeves. 4.2.7 The wire harness banded with adhesive tape, as shown in Figure 3 and Figure 4, shall meet the following requirements. 4.3 Size of Wire Harness 4.3.1 The length of main stems and protection sleeves shall not be less than 50 mm. 4.4 Connection of Terminals and Wires 4.4.1 Crimp connection. The connection of terminals and the wires shall give priority to the crimping method shown in Figure 9. 4.8 Temperature Resistance Performance The wire harnesses shall meet the requirements of 4.2 and 4.7 after low temperature, high temperature and temperature change resistance tests according to the lower limit working temperature Tmin and upper limit working temperature Tmax provided in drawings and technical documents.

5 Test Method

5.1 Test Conditions Unless otherwise specified, the test sample shall be tested after stabilization for 24 h under the conditions as follows. 5.3 Dimensional Inspection 5.3.1 Use a steel tap to measure the basic dimensions of wire harnesses and the dimensions of taping. 5.3.2 Use a special gauge or protractor to measure the direction of wire harness branching and the direction of clips. 5.4 Test of Terminal and Wire Connection 5.4.1 Take visual inspection for a), b), c) and d) in 4.4.2 Conductor crimping and 4.4.4 and 4.4.8. 5.4.5 Connection strength test. Conductor crimp Cut-off position Wire Cut-off position. It shall not be close to the location of front and back R; it shall be close to the middle position of the crimping area while avoiding the interior reinforcing bar of terminals. 5.5.4 Water immersion test of damp bound juncture. 5.5.6 Crimping juncture cross-section. implement in accordance with 5.4.4. 5.6 Waterproof Performance Test of Rubber Parts 5.6.1 Test facility. partition board, φ16 mm spray water hose, high pressure water pump, water pressure regulator and chronograph. 5.6.2 Test sample. take samples from actual products; the samples shall be 100 mm at least longer than the waterproof portion of rubber parts.

7 Marking, Packaging, Storage and Custody

7.1 Marking 7.1.1 The wire harnesses shall be provided with a distinctive mark which is not easily detached. 7.1.2 When it is not required by drawings and technical documents, the product marking shall include the items as follows. 7.2 Packaging Packing documents. 7.3 Storage and Custody The storage and storage of the product shall meet the relevant requirements of QC/T 238.The shelf life of the product is normally 2 years. The product shall continue to meet the mentioned requirements of this standard after 2 years' shelf life. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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