QC/T 218-2017_English: PDF (QC/T218-2017)
Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
QC/T 218-2017 | English | 350 |
Add to Cart
|
0--9 seconds. Auto-delivery
|
Technical specification of steering column switch for vehicles
| Valid |
QC/T 218-2017
|
QC/T 218-1996 | English | 155 |
Add to Cart
|
0--9 seconds. Auto-delivery
|
Technical specifications for steering column upper combined switch of automobile
| Obsolete |
QC/T 218-1996
|
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| Word Count Estimation | 28,218 | Date of Issue | 2017-01-09 | Date of Implementation | 2017-07-01 | Older Standard (superseded by this standard) | QC/T 218-1996 | Regulation (derived from) | Ministry of Industry and Information Technology Announcement No.2 of 2017 | Summary | This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. | 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T35 | Word Count Estimation | 15,152 | Date of Issue | 1996/12/18 | Date of Implementation | 1997/9/1 | Older Standard (superseded by this standard) | ZB T36 014-1990 | Quoted Standard | GB 2423.4-1981; GB 2423.17-1981; GB 2828-1987; GB 4094-1994; JB 2864-1981; ZB T36 009-1989; QC/T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.
......
|