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QC/T 218-2017 English PDF (QC/T 218-1996)

QC/T 218-2017_English: PDF (QC/T218-2017)
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QC/T 218-2017English350 Add to Cart 0--9 seconds. Auto-delivery Technical specification of steering column switch for vehicles Valid QC/T 218-2017
QC/T 218-1996English155 Add to Cart 0--9 seconds. Auto-delivery Technical specifications for steering column upper combined switch of automobile Obsolete QC/T 218-1996


BASIC DATA
Standard ID QC/T 218-2017 (QC/T218-2017)
Description (Translated English) Technical specification of steering column switch for vehicles
Sector / Industry Automobile & Vehicle Industry Standard (Recommended)
Classification of Chinese Standard T36
Word Count Estimation 28,218
Date of Issue 2017-01-09
Date of Implementation 2017-07-01
Older Standard (superseded by this standard) QC/T 218-1996
Regulation (derived from) Ministry of Industry and Information Technology Announcement No.2 of 2017
Summary This standard specifies the terms and definitions, requirements, test methods, inspection rules, etc. of the combination switch on the steering column for automobiles.

BASIC DATA
Standard ID QC/T 218-1996 (QC/T218-1996)
Description (Translated English) Technical specifications for steering column upper combined switch of automobile
Sector / Industry Automobile & Vehicle Industry Standard (Recommended)
Classification of Chinese Standard T35
Word Count Estimation 15,152
Date of Issue 1996/12/18
Date of Implementation 1997/9/1
Older Standard (superseded by this standard) ZB T36 014-1990
Quoted Standard GB 2423.4-1981; GB 2423.17-1981; GB 2828-1987; GB 4094-1994; JB 2864-1981; ZB T36 009-1989; QC/T 29028-1991; QC/T 29029-1991
Adopted Standard JIS D1605-1988, NEQ; JIS D1601-1990, NEQ
Drafting Organization Huayang Electric Factory
Administrative Organization National Automotive Standardization Technical Committee
Regulation (derived from) Ministry of Industry and Information Technology Announcement No. 2 of 2017
Summary This standard specifies the vehicle steering column combination switch on the technical requirements, inspection rules and test methods. This standard applies to be installed on the car's steering column combination switch (hereinafter referred to as "combination switch").


QC/T 218-2017 QC AUTOMOBILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040.10 T 36 Replacing QC/T 218-1996 Technical specifications for steering column switch for vehicles ISSUED ON: JANUARY 09, 2017 IMPLEMENTED ON: JULY 01, 2017 Issued by: Ministry of Industry and Information Technology of PRC Table of Contents Announcement ... 3 Foreword ... 9 1 Scope ... 11 2 Normative references ... 11 3 Terms and definitions ... 12 4 Requirements ... 13 5 Test method ... 21 6 Inspection rules ... 32 7 Marking, packaging, transportation and storage ... 34 Annex: References, names and dates of implementation of 42 automotive industry standards No. Standard reference Standard name Standard reference being substituted Date of implementation 250 QC/T 776-2017 Motor caravan QC/T 776-2007 2017-07-01 251 QC/T 1051-2017 Coach car 2017-07-01 252 QC/T 1052-2017 Communication vehicle 2017-07-01 253 QC/T 1053-2017 Concrete spraying vehicle 2017-07-01 254 QC/T 1054-2017 Tunnel cleaning vehicle 2017-07-01 255 QC/T 1055-2017 Drainage and rescue vehicle 2017-07-01 256 QC/T 218-2017 Technical specifications for steering column upper combined switch of automobile QC/T 218-1996 2017-07-01 257 QC/T 1056-2017 Technical requirements and test methods for automotive dual clutch automatic transmission assembly 2017-07-01 258 QC/T 245-2017 Technical specifications for isolated plant of compressed-natural- gas (CNG) automobile QC/T 245-2002 2017-07-01 259 QC/T 247-2017 Technical specifications for isolated plant of liquefied petroleum gas QC/T 247-2002 2017-07-01 260 QC/T 1057-2017 Car snow chains 2017-07-01 261 QC/T 1058-2017 Car fingerprint identification device 2017-07-01 Technical specifications for steering column switch for vehicles 1 Scope This standard specifies the terms and definitions, requirements, test methods, inspection rules, etc. of the combined switch on the steering column of the automobile (hereinafter referred to as the "combined switch"). This standard applies to combined switches installed on the steering column of automobiles. 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 4094 Motor vehicles - Symbols for controls, indicators and tell-tales QC/T 625-1999 Metallic coatings and conversion coatings for automobiles GB/T 18655-2010 Vehicles boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers GB/T 21437.2-2008 Road vehicles - Electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only GB/T 21437.3-2012 Road vehicles - Electrical disturbances from conduction and coupling - Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines GB/T 19951-2005 Road vehicles - Test methods for electrical disturbances from electrostatic discharge GB/T 33014.2-2016 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 2: Absorb-lined shielded enclosure GB/T 33014.4-2016 Road vehicles - Component test methods for controllers, etc. 3.4 Auto return framework The mechanism installed in the switch which, when the handle of the turn signal switch is in the left (L) or right (R) position, if the steering wheel returns from the left or right position to the original position, makes the handle automatically return to the neutral (N) position. 3.5 Speed character The characteristics of automatic return mechanism which cancels the steering signal when the steering wheel returns at high speed. 4 Requirements 4.1 General requirements 4.1.1 Product drawings and technical documents. The combined switch shall meet the requirements of this standard and be manufactured in accordance with the requirements of the product drawings and technical documents approved by the prescribed procedures. 4.1.2 Appearance The combined switch shall have good appearance quality; the structure shall be intact; there shall be no incorrect assembly, missing assembly or other poor assembly. The surface paint film shall be uniform and free from blisters, blanks, accumulation or overflow. The metal parts shall have an anti-corrosion layer. The plastic parts shall be free of cracks; it shall have no deformation that affects the use and appearance. The indication and signal’s identification symbols used by the combined switch shall comply with the requirements of GB 4094. The identification symbols shall be clear and free from partial shedding, shrinkage or blurring. 4.1.3 Dimensions The size of the combined switch shall conform to the specifications of the product drawings of this type. 4.2 Rated load The functions, functional characteristics and voltage drop shall meet the requirements of 4.3 and 4.7. 4.12 Cyclic damp heat resistance After the combined switch has been subjected to the cyclic damp heat test, its appearance shall meet the requirements of 4.1.2. The functions, functional characteristics and voltage drop shall meet the requirements of 4.3 and 4.7. 4.13 Salt spray resistance After the combined switch has undergone the salt spray resistance test, its appearance shall meet the requirements of 4.1.2. The functions, functional characteristics, and voltage drop shall meet the requirements of 4.3 and 4.7. There shall be no corrosion pits on the surface after cleaning. 4.14 Dust resistance After the combined switch is subjected to the dust resistance test, the function, functional characteristics and voltage drop shall meet the requirements of 4.3 and 4.7. 4.15 Vibration resistance After the combined switch is subjected to the vibration resistance test, the appearance shall meet the requirements of 4.1.2; the function, functional characteristics and voltage drop shall meet the requirements of 4.3 and 4.7. 4.16 Strength of identification symbol 4.16.1 Resistance to chemical reagents After the combined switch is tested for resistance to chemical reagents, the surface of the sample does not change; meanwhile the marking content is clear and readable. 4.16.2 Adhesion performance After the adhesion test of the combined switch, the surface peeling off area of the identification symbol, the corners of the square, the cut intersection shall not be significantly larger than 5%. 4.16.3 Wear resistance After the combined switch is subjected to abrasion resistance test, the identification symbol shall be identifiable. 4.17 Durability The electronic combined switch shall be subjected to a slow drop and slow rise test of the power supply voltage. During the test, the functions, functional characteristics, voltage drop shall meet the requirements of 4.3 and 4.7; after the test, it shall be turned on and off normally. 4.22 Transient changes of supply voltage 4.22.1 Instant drop of power supply voltage The electronic combined switch shall be subjected to an instantaneous drop test of the supply voltage. During the test, the functions, functional characteristics, voltage drop shall meet the requirements of 4.3 and 4.7; after the test, it shall be turned on and off normally. 4.22.2 Reset performance for voltage dip The electronic combined switch shall be subjected to a reset performance test against voltage dip. During the test, the functions, functional characteristics, voltage drop shall meet the requirements of 4.3 and 4.7; after the test, it shall be turned on and off normally. 4.23 Reverse voltage The electronic combined switch shall be subjected to a reverse voltage test. After the test, it shall be turned on and off normally after the normal connection is restored. 4.24 Open circuit test The electronic combined switch shall be subjected to an open circuit test. After the test, it shall be turned on and off normally after the normal connection is restored. 4.25 Short circuit protection 4.25.1 Signal circuit The combined switch formed by the signal circuit shall be subjected to a short- circuit protection test. After the test, it shall be turned on and off normally after the normal connection is restored. 4.25.2 Load circuit The combined switch formed by the load circuit shall be subjected to a short- circuit protection test. After the test, all electronic protection output terminals shall ensure that they can withstand the short-circuit current and can resume normal operation after the short-circuit current is cut off (the functional state is Class C as defined in GB/T 28046.1-2011). The test is conducted in a soundproof booth; the background noise level is not more than 36 dB. Install the combined switch on the special test bench. Place a microphone with its longitudinal axis perpendicular to the center of the measured part of the switch, 200 mm away from the center of the measured part of the switch. Operate each functional gear positions normally; then measure the operating sound of each gear position. 5.7 Voltage drop test Perform voltage drop testing for all functions of the combined switch. Apply the load as specified in the dedicated product specification or other load as specified to the switch. The contact is activated 3 times in a live mode; then the voltage drop at the output terminal is measured by a millivoltmeter. Each pair of output terminals is measured 3 times; the average value is taken. 5.8 Test of temperature rise of contact Apply the load as specified in the dedicated product specification to the switch; connect the circuit to perform the test. Measure the temperature rise at the lead- out terminal closest to each contact. If the temperature rise value is not greater than 1 °C within 30 minutes, the temperature can be considered stable; the measured value is recorded as the test results. 5.9 Contact chattering test Apply the load as specified in the dedicated product specification to the switch; use an oscilloscope to measure the contact chattering time of each switch when it is turned on and off. Manually simulate the different gear positions of the operation switch. For each gear, the contact chattering time is continuously measured for 3 times; the average value of the measurement is taken. 5.10 Temperature resistance performance test 5.10.1 Low temperature resistance performance test 5.10.1.1 Low-temperature storage performance test Carry out the test in accordance with the test method specified in 5.1.1.1 of GB/T 28046.4-2011. 5.10.1.2 Low temperature operation performance test Install the combined switch on a special test bench; place the test bench in a low temperature chamber. Carry out the test according to the test method specified in 5.1.1.2 of GB/T 28046.4-2011. 5.10.2 High temperature resistance performance test air for 15 s, followed by storage for 48 hours (the specimens of indoor cleaner, coffee and sugar are stored at 80 °C; the specimens of glass cleaner, detergent, and artificial sweat are stored at room temperature); then the test items are evaluated. 5.16.2 Adhesion performance test Test the parts with identification symbols on the combined switch. At a uniform speed of 20 mm/s ~ 50 mm/s, with a spacing of 1 mm, cut the grid on the surface of the part identification symbol; then stick a tape (3M 610 model or as negotiated between the supplier and the buyer) on the cutting surface for 1 min ~ 2 min. Make the surface be torn off at an instant; then evaluate the test items. 5.16.3 Abrasion resistance test Test the parts with identification symbols on the combined switch. Use a dry friction fabric (colorless, bleached cheesecloth) to wrap the plug of the tribometer. Apply a pressure of 9 N on the surface of the dry switch identification symbol for friction movement. At a speed of 16 times/min and a stroke of 20 cm, perform 2000 frictional movements back and forth; then test the evaluation items. 5.17 Durability test 5.17.1 Durability test rules For different parts of the combined switch, test according to the following methods. For one-piece switches, the same group of samples are used to perform the following tests in sequence; for split switches, the same group of samples are used for the same split switch to be tested sequentially; different split switches can be tested separately. 5.17.2 Turn signal switch Apply load specified in the product specification or other specified loads onto the switch; at a rate of 15 times/min ~ 30 times/min, carry out the test. Each full conversion cycle includes the following: a) OFF- Left (or right) lane change - left (or right) turn; b) Use a dedicated fixture to perform the automatic return action of the switch; c) OFF - right (or left) lane change - right (or left), repeat the action of item b). The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear is 1 s ~ 2 s; the dwell time after each full conversion is 5 s ~ 7 s. Apply load specified in the product specification or other specified loads onto the switch; at a rate of 6 times/min ~ 10 times/min, carry out the test. Each full conversion cycle includes the following: Change the gears from the initial position one by one; then return to the initial position one by one. The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear is 1 s ~ 2 s; the dwell time after each full conversion is 1 s ~ 2 s. 5.17.8 Scrubber switch Apply load specified in the product specification or other specified loads onto the switch; at a rate of 6 times/min ~ 10 times/min, carry out the test. Each full conversion cycle includes the following: OFF - front scrubbing - OFF - rear scrubbing - OFF. The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear is 1 s ~ 2 s; the dwell time after each full conversion is 3 s ~ 5 s. 5.17.9 Cruise switch Apply load specified in the product specification or other specified loads onto the switch; at a rate of 15 times/min ~ 30 times/min, carry out the test. Each full conversion cycle includes the following: Cruise OFF - cruise ON - (OFF - increase of fixed speed - OFF - decrease of fixed speed - OFF) - cruise OFF. The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear is 1 s ~ 2 s; the dwell time after each full conversion is 3 s ~ 5 s. 5.17.10 Menu page switch Apply load specified in the product specification or other specified loads onto the switch; at a rate of 6 times/min ~ 10 times/min, carry out the test. Each full conversion cycle includes the following: OFF - set/reset - (OFF- page up - OFF - page down - OFF) - OFF. The conversion time of each gear is 0.1 s ~ 0.5 s; the dwell time of each gear is 1 s ~ 2 s; the dwell time after each full conversion is 3 s ~ 5 s. 5.18 DC supply voltage test Carry out the test according to the test method specified in 4.2 of GB/T 28046.2- 2011. 5.26 Insulation resistance test Carry out the test in accordance with the test method specified in 4.12 of GB/T 28046.2-2011. 5.27 Electromagnetic compatibility performance test 5.27.1 Conducted emission - voltage method test Carry out the test in accordance with the test methods specified in 6.2 and 6.3 of GB/T 18655-2010. 5.27.2 Radiation emission - ALSE test Carry out the test in accordance with the test method specified in 6.4 of GB/T 18655-2010. 5.27.3 Voltage transient emission test Carry out the test in accordance with the test method specified in 4.3 of GB/T 21437.2-2008. 5.27.4 Radio frequency anti-interference - free field method test Carry out the test in accordance with the requirements in GB/T 33014.2-2016. The test uses the anechoic chamber method. 5.27.5 Radio frequency anti-interference - high current injection method test Carry out the test in accordance with the requirements in GB/T 33014.4-2016. The test uses the alternative method in the BCI method. 5.27.6 Transient conduction anti interference test of power line Carry out the test in accordance with the test method specified in 4.4 of GB/T 21437.2-2008. The test class requirement is class III. 5.27.7 Transient conduction anti-interference test of signal line Carry out the test in accordance with the requirements in GB/T 21437.3. The test uses the capacitive coupling clamp (CCC) method. The test class requirement is class III. 5.27.8 Electrostatic discharge test Carry out the test according to the test method specified in 5.2 and 7.2 of GB/T 19951-2005 ......


QC/T 218-1996 QC AUTOMOBILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Technical specifications for steering column upper combined switch of automobile ISSUED ON: DECEMBER 18, 1996 IMPLEMENTED ON: SEPTEMBER 01, 1997 Issued by: Ministry of Machine Building of PRC Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Definition ... 5  4 Requirements ... 5  5 Inspection rules ... 10  6 Test methods ... 11  7 Marking, packaging, transportation and storage ... 20  Technical specifications for steering column upper combined switch of automobile 1 Scope This standard specifies the technical requirements, inspection rules and test methods for the steering column upper combined switch of automobile. This standard applies to combined switches installed on the steering column of automobiles (hereinafter referred to as "combined switches"). 2 Normative references The provisions contained in the following standards constitute provisions of this standard through quotation in this standard. At the time of publication of the standard, the edition indicated was valid. All standards will be revised; all parties using this standard shall explore the possibility of using the latest version of the following standards. GB 2423.4-81 Basic environmental testing procedures for electric and electronic products - Test Db: Alternating damp heat test method GB 2423.17-81 Basic environmental testing procedures for electric and electronic products Test Ka: Salt mist GB 2828-87 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) GB 4094-94 Motor vehicles - Symbols for controls, indicators and tell-tales JB 2864-81 Electroplating layer and chemical treatment layer for automobile ZB T36 009-89 Automotive electrical wiring terminal mark QC/T 29028-91 Performance test method of steering column lock with ignition switch for automobile QC/T 29029-91 Technical conditions of steering column lock with ignition switch for automobile 3 Definition This standard uses the following definition: 3.1 Combined switch on the steering column A device which is installed on the steering column of an automobile, composed of two or more switches used to control the lights, signals, electrical appliances of the automobile. 3.2 Automatic return mechanism When the trigger of the turn signal switch is in the left (L) or right (R) position, when the steering wheel returns from the left or right position to the original position, a mechanism which automatically returns the trigger to the middle (N) position and installed in the switch. 3.3 Speed characteristics The characteristics of automatic return mechanism which cancel the steering signal when the steering wheel returns at high speed, 3.4 Anti-interference characteristics When the trigger of the turn signal switch is in the left gear or the right gear state, the characteristics wherein the trigger is forcibly held in the original position by external force and the steering wheel is rotated in the direction of automatic return, it can withstand this forced action. 4 Requirements 4.1 General requirements 4.1.1 Structure The combined switch shall meet the requirements of this standard and shall be manufactured in accordance with the drawings and design documents approved by the prescribed procedures. 4.1.2 Workmanship quality The combined switch shall have good workmanship quality; the structure shall be intact; there shall be no defective assembly such as wrong installation or missing installation. Riveting, crimping, bonding, screw connections shall be firm and free of looseness; wire brazing shall be firm and free of false welding or de-soldering. There shall be no process defects that affect performance and product standard. The marks of the ignition switch and the steering lock shall comply with the provisions of QC/T 29029 or the product standard. 4.4 Rated load The rated load of the combined switch shall be specified in the product standard of this type. 4.5 Environmental conditions 4.5.1 Temperature resistance The combined switch shall be able to work normally under the condition of - 40 °C ~ 65 °C. 4.5.2 Damp heat resistance The combined switch shall be able to withstand the alternating damp heat test at a high temperature of 40 °C and a period of 6 days. After the test, the insulation resistance shall meet the requirements of 4.11. 4.5.3 Vibration resistance When the combined switch is tested according to the test conditions of 6.15, the contacts of the switch shall not be loose in connection. During the frequency sweep test, there shall be no displacement or jump of shift of each working gear. After the vibration test, the conversion force shall meet the requirements of 4.6.2; the voltage drop shall meet the requirements of 4.9; the insulation resistance shall meet the requirements of 4.11. 4.5.4 Salt spray resistance After the salt spray test of the combined switch, check the switch position and insulation resistance, which shall meet the requirements of 4.6.1 and 4.11. 4.6 Action characteristics 4.6.1 Gear The various switch positions in the combined switch shall be flexible, accurate and reliable in positioning, without looseness and blocking. The switch with automatic return mechanism shall be able to return automatically and accurately when the external force is eliminated. 4.6.2 Conversion force b) When major changes to the product design, process or materials used may affect product performance; c) Products that are not frequently produced, which are reproduced at an interval of more than one year; d) For products produced in batches or in large quantities, once every two years; e) When the national supervision and inspection agency requests for type inspection. The combined switches for type inspection shall be selected from the batches of products that have passed the exit-factory inspection. A total of 9 switches shall be selected and divided into three equal groups. The inspection items and procedures shall be carried out in accordance with Table 5. The type inspection of the combined switch must all meet the requirements. If some items are unqualified, a doubled number of products shall be re-examined for the unqualified items. If there are still unqualified items, the batch of products shall be deemed unqualified. But for the durability test, it shall not double the sampling size. 6 Test methods 6.1 Test conditions Except for special requirements, various tests of the combined switch are carried out in a test chamber under normal environmental conditions; The accuracy level of the voltmeter used in the test is not less than 0.5; the accuracy level of the ammeter is not less than 1.0; Various measuring tools and equipment used for testing and inspection shall be within the valid period of qualified calibration. 6.2 Visual inspection Visually inspect the appearance of the combined switch and it shall meet the requirements of 4.1.1, 4.1.2, 4.1.3, 4.1.5, 4.2, 4.3. 6.3 Inspection of appearance and installation dimensions Use the gauges and measuring tools that meet the requirements to check the overall dimensions, installation dimensions and connection dimensions of the combined switch according to the product drawings and technical requirements. They shall meet the requirements of 4.1.4. of 4.9. 6.11 Insulation resistance check Use a 500 V megohmmeter to measure the insulation resistance between the open contacts of each switch and between the current-carrying components and other metal parts. The insulation resistance shall meet the requirements of 4.11. 6.12 Temperature rise test Apply a rated load on the ignition switch in the combined switch. When the temperature of the contact reaches a stable value, if the temperature rise is not greater than 1 °C within 30 minutes, the temperature can be considered to be stable. The maximum temperature rise is measured at the terminal nearest to each contact shall not exceed the provisions of Table 2. 6.13 Temperature resistance test 6.13.1 Low temperature work and high temperature work test Low temperature work and high temperature work test are carried out according to the following procedures and requirements: a) Low temperature work Place the combined switch in a low temperature chamber to reduce the temperature to -40 °C ± 3 °C. After the temperature stabilizes, keep it warm for 30 minutes; then perform 10 full conversion operations on all switches and operating mechanisms in the chamber, which shall meet the requirements of 4.6.1. Finally, it is restored to normal state under normal environmental conditions. b) High temperature work Place the combined switch in a high temperature chamber and raise the temperature to 65 °C ± 2 °C. After the temperature stabilizes, keep it warm for 30 minutes; then perform 10 full conversion operations on all switches and operating mechanisms in the chamber, which shall meet the requirements of 4.6.1. Finally, it is restored to normal state under normal environmental conditions. c) Final testing When checking the conversion force according to 6.7, it shall meet the requirements of 4.6.2; when checking the voltage drop according to 6.10, it shall meet the requirements of 4.9; when checking the insulation 6.15.1 Sweep frequency vibration test The combined switch is subjected to a frequency sweep test in the up and down direction according to the following conditions: Frequency 5 Hz ~ 100 Hz; acceleration 44.1 m/s2 (amplitude below 0.4 mm); Sweep frequency 10 min (changes according to the exponential law); sweep frequency number 1; When there is a resonance frequency, the resonance frequency point shall be recorded. 6.15.2 Fixed frequency vibration test 6.15.2.1 When the resonance frequency does not appear in the test of 6.15.1, the fixed frequency vibration test shall be carried out according to the following conditions: Frequency 67 Hz; acceleration 44.1 m/s2; Vibration time: 4 h for up and down direction, 2 h for left and right direction, 2 h for front and rear direction; In the tests in all directions, the time that the lever and handle are in the non-working position takes up 50%; the time in the working position of each gear is the remaining 50%. 6.15.2.2 When the resonance point is recorded in the test in 6.15.1, the fixed frequency vibration test shall be carried out according to the following conditions: a) At a frequency of 67 HZ and an acceleration of 44.1 m/s2, the vibration time is: 3 h for up and down direction, 1.5 h for left and right direction, 1.5 h for front and rear direction; b) Under the main resonance frequency and acceleration of 44.1 m/s2, the vibration time is: 1 h for up and down direction, 0.5 h for left and right direction, 0.5 h for front and rear direction. Lever and handle position shall be as specified in 6.15.2.1. The combined switch shall meet the requirements of 4.5.3 during the vibration process and after the test. 6.16 Durability test 6.16.1 Test equipment 6.16.2.2 Dimmer switch Apply the lighting load or other specified load as specified in the technical documents to the switch. Complete the number of full conversion tasks specified in No.2 of Table 3 at a rate of 15 ~ 30 times per minute. Each full conversion number includes the following procedures: High beam - low beam - (overtaking - low beam -) high beam The conversion time of each gear is 0.1 s ~ 0.5 s, the stay time in each gear is not less than 0.4 s. After the test, check the switching force according to 6.7, which shall conform to 4.6.2; check the voltage drop according to 6.10, which shall conform to 4.9; check the insulation resistance according to 6.11, which shall conform to 4.11. 6.16.2.3 Wiper switch Apply the load specified in the technical document or simplified resistive load onto the switch; complete the number of full conversion work specified in the No.3 in Table 3 according to the following requirements. The number of full conversion work shall include passing through each gear in turn from the starting position, stopping at each gear, then returning to the starting position without stopping. The test equipment shall meet the following operating time requirements: a) The conversion time of each gear is 0.1 s ~ 0.5 s; When the switch controls the rheostat, the running time from each direction through the rheostat is 0.1 s ~ 3 s; b) The pause time in each gear is 0.5 s ~ 1 s; When the switch controls the motor, the switch stays in the off gear for enough time to stop the motor; the pause time can be greater than the above-mentioned specified pause time. The wiper switch with inching wiping function shall also complete the inching wiping function of the number of work specified in No.3 of Table 3 at the rate of 10 ~ 20 times per minute under the same load. After the test, check the switching force according to 6.7, which shall conform to 4.6.2; check the voltage drop according to 6.10, which shall conform to 4.9; check the insulation resistance according to 6.11, which shall conform to 4.11. ......

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