Some standard content:
Military standard of the electronics industry of the People's Republic of China FL5910
SJ 20030—92
Generic specification of vacuum capacitors1992-02-01 issued
China Electronics Industry Corporation
1992-05-01 implemented
Military standard of the electronics industry of the People's Republic of China General specification of vacuum capacitors
Generic specific alin of vacuum capacitors1.1 Subject content
This specification specifies the general requirements for fixed or variable ceramic or glass vacuum capacitors. 1.2 Scope of Application
SJ 20030—92
This specification applies to the design, production, use and formulation of product specifications of fixed or variable ceramic or glass vacuum capacitors. According to the specific use conditions (see 3.1), the operating temperature range is -55~85℃, -55~100℃, 55~125℃ or 0-850℃.
1.3 Specifications
1.3.1 Product Category and Specification (Model)
The category and specification of the product shall conform to the following format and comply with the provisions of the detailed specification (see 3.1)CKTRJ
(1. 3. 1. 1)
1.3.1.1 Category
Capacitance
(1. 3. 1. 2)
Separator
Peak Working Voltage
(1. 3. 1.3)
Capacitor types are indicated by the following sequence of uppercase Latin lettersCKTBI
Military variable ceramic vacuum capacitors
Military variable glass vacuum capacitors
CKTJ--Military fixed ceramic vacuum capacitorsCKBI--Military fixed glass vacuum capacitors1.3.1.2 Capacitance
1.3.1.2.1 Capacitance of fixed capacitors
China Electronics Industry Corporation1992-02-01 Issued by Separator
Maximum range of radiated charges
(1.3.1.5)
Implemented on 1992-05-01
TKAONKAca
SJ 20030-92
is expressed in picofarads (F) and is the nominal value of its capacitance. Unless otherwise specified, the error is ±10 (see 3.1). 1.3.1.2.2 The capacitance of the variable resistor is expressed in picofarads (pF) and is the nominal value of its maximum capacitance (see 3.1 and 3.6). 1.3.1.3 The peak working voltage
is expressed in lV and is the rated value of its peak working voltage (see 3.1). 1.3.1.4 The reduced test voltage
is expressed in kV and is the rated value of its high peak test voltage (see 3.1). Unless otherwise specified, the peak test voltage (5CH2 positive waveform) is equal to 1.4 times the rated value of the high peak working voltage. 1.3.1.5 Maximum RF current
is in A, unless otherwise specified (see 3.1 Product 1 Maximum RF current rating is the effective value of the sinusoidal filter shape, the working frequency is 16MHz, under natural cooling conditions. 2 Reference documents
The valid versions of the following standards, within the scope of this specification, constitute part of this specification. G 191--85
G3 192--81
G3 193--81
GB 196--81
GJ 197--81
GB E25:6--81
G2516—81
GB 4857,1—84
GB 4857. 5--64
Packaging, storage and transportation pictorial symbols
Common thread basic teeth
Common thread diameter and pitch series
Common thread basic size
Common thread tolerance and fit
Common thread terminology
Common thread deviation table
Basic tests for transport packages
Basic tests for transport packagesVertical impact drop test method G3 4557.1086
Basic tests for transport packagesSine vibration (variable) test method 611 504885
86388-86
:7986
CJH 182- 85
613 360.167
Gl3 360.27
3 Requirements
3.1 Detailed specifications
Transport packaging
Marking of shipping and receiving packages
Counting and sampling inspection procedures and procedures
Military supplies transport packaging system electronic and electrical components test methods General
Test methods for electronic and electrical components dielectric resistance test The thermal requirements of each product shall comply with the requirements of the detailed specifications. If the requirements of the specification conflict with those of the detailed specifications, the detailed specifications shall prevail (see 5.1). || tt||3.2 Qualification
Capacitors supplied in accordance with this specification are products that have been qualified or approved for production (see 4.4). 3.3 Materials
Material materials shall comply with the provisions of this specification. When the material is not specified, the materials used shall be able to ensure that the capacitor meets the performance requirements of this specification. And they are compatible with the radiated magnetic fields encountered in use. The acceptance or approval of low-content materials by the military shall not be used as a guarantee for acceptance of the finished product.
3.3.1 Metals
SJ 20330 --92
Exposed metal should be free-form or treated with corrosion protection such as electroplating (see 3.15). All sharp edges should be removed, filed or rounded
3.4 Design and construction
Capacitors should have the specified design, structure and dimensions (see 3.1). 3.4.1 Threaded parts
All existing threaded parts should comply with the provisions of GB102, GB193, GB193, GB197, GB2515 and GB251E. 3.4.1.1 Screw-on
Threaded parts should have at least a complete threading fit: 3.4.1.2 Locking of threaded components
The specified locked threaded parts should be able to withstand resistance and impact without loosening, and the obvious loosening effect of internal movement or external thickening of the parts should be the reason for the grip. 3.5 Dielectric capacitance
When tested in accordance with 4.5.2, the capacitor shall show no damage, arcing, or flashover. In addition, no flashover shall occur during the 5-min test period.
Note that flashover is a self-healing, non-continuous flashover phenomenon. 3.6 Capacitance
When measured in accordance with 6.8, the capacitance shall meet the following requirements: For fixed capacitors, the nominal value is 10% (see 3.1); For variable capacitors: the minimum capacitance is less than or equal to the new set value (see 3.1); the maximum capacitance is greater than or equal to the lower rated value (see 3.1). 3.7 DC leakage current
Before the test specified in 1.6.1, the DC full charge in both directions shall be greater than 10A. 3.B Quality factor (Q)
When the test specified in 4.6.5 is carried out, the quality factor (Q) shall be less than 100C. 3.9 Mechanical adjustment (referring to variable capacitance, see 3.1), when the test specified in 4.6.6 is carried out, the capacitor shall meet the following requirements. 3.9. 1 The end position
The end position shall be able to withstand the specified rotation torque (3.1) 3.9.2 Maximum torque
The maximum torque shall be within the specified limit (3.1). 3.9.3 Maximum thrust or pull (when applicable) When applicable, the maximum thrust or pull shall be within the specified limit (see!). 3.0 Characteristic curve (variable capacitors with hysteresis only) When tested in accordance with 4.5.1, the change in capacitance shall be substantially consistent with the specified capacitance characteristic curve and there shall be no capacitance hysteresis. The capacitance characteristic curve of the capacitor shall be within 10% of the nominal value of the specified capacitance characteristic curve (see 3.1), except that a maximum capacitance of 2% of the nominal value is allowed in the non-linear portion of the curve near the minimum capacitance of the capacitor (see 3.1). If a corresponding table of capacitance change and rotation period is provided, the capacitance shall be within the specified limit. 3.11 Sudden discharge* SJ 20030-92 When tested in accordance with 4.6.8, the markings on the capacitor shall remain clear and shall not be blurred or erased. 3.12 Temperature shock
When tested according to the provisions of 4.6.9, the capacitor shall not be damaged. 3.13 Alarm
When tested according to 4,6.3.14 Impulse (specified pulse)
When tested as specified in 4.6.11, the capacitor shall have no mechanical damage or intermittent arcing or breakdown during freezing. 3.15 Capacitor
When tested as specified in 4.6.12, there shall be no harmful or severe corrosion. At least 100% of the exposed metal surface of the capacitor shall be protected, the markings shall remain clear, and the rotating tuning mechanism shall have no damage that affects tuning and mechanical properties. 3.16 Capacitance change with temperature
When tested as specified in 4.6.13, the absolute value of the capacitance change with temperature shall not exceed 1.% of the given capacitance within the operating temperature range (see 3.1). The capacitors with a nominal capacitance value of less than 30 pF shall be specified separately (see 3.1). 3.17 Rated load
When tested in accordance with 4.6.14, the surface temperature of the glass-enclosed capacitor shall not exceed 85°C, while that of the ceramic-enclosed capacitor shall not exceed 125°C. Unless otherwise specified, the change in capacitance shall not exceed ±1.0% (see 3.1).
3.18 Life (variable capacitors only)
When tested in accordance with 4.6, 15, the bellows shall not rupture and leak. When the life cycle changes reach the specified number, the dielectric withstand voltage, mechanical adjustment, and capacitance characteristic curve shall still comply with the provisions of 3.6, 3.9, and 3.0, respectively, when applicable. 3.19 Marking
The marking of capacitors shall include the product category and specification (number), manufacturer's name, and serial number. Markings that conflict with the provisions of this specification or that may cause confusion or have unclear meanings shall not be used. After the capacitor has been subjected to all the tests specified in this specification, the markings shall remain legible. The marking position shall comply with the provisions (see 3.1) and the marking shall not affect the performance of the capacitor when the capacitor is installed in the military equipment in the specified manner. 3.19.1 Product Model
The product model shall comply with the provisions of 1.3.1
3.19.2 Manufacturer's Name
The manufacturer's name shall be consistent with the name of the manufacturer provided for the inspection sample. 3.19.3 Serial Number
The serial number shall reflect the year and month of manufacture of the part and its serial number in that month. 890183--Made in July 1989, serial number is No. 183: 89121347--December 1989 Manufactured, serial number is 1017. 3.20 Manufacturing Quality
Capacitors shall be processed by methods that ensure consistent quality and shall not have corrosion, cracking, burrs, peeling or other defects that may have a negative impact on life, usability or appearance. 3.20.1 Welding
The solder for pin welding shall comply with the regulations. The pin welding area shall be smooth and flat, without solid protrusions, pits or hollows. At the sealing joint between the metal and the ceramic tube, the metal and the solder shall not be allowed to protrude from the outer side of the ceramic tube shell, and there shall be no solder flow. 4
SJ 20030--92
The hydrogen arc explosion site should be smooth and flat, without sharp points, convex pits or hollows. 3.20.2 Sealing (referring only to the sealing of glass and metal, see 3.1) When inspected according to the provisions of 4.6.1, the sealing should meet the following requirements! A. The sealing color of glass and Kovar alloy should be mouse gray: the sealing color of glass and oxygen-free metal should be light yellow to dark red
B. The width of the clamp should not exceed one-fourth of the sealing width: (the clamp refers to the sealing of glass and metal). C. The effective width of the glass crack that destroys the seal at the sealing part shall not exceed one-fourth of the sealing width or 2.5mm, whichever is smaller.
D. The bubble should not exceed one-half of the sealing width, the length of a single bubble should not exceed one-sixth of the sealing ring, and the total length of all bubbles should not exceed one-third of the sealing ring. The combined value of the above two types of defects, solid layer, cracks and bubbles, shall not exceed one-tenth of the sealing width; F. The chipping of the thin edge of the joint shall not exceed one-tenth of the width of the joint. 3.20.3 Electroplated surface and guide rail
When according to 4.5.1.1 During the specified test, there shall be no traces of cyanide plating on the surface of the keypad and the guide rail, and the guide rail shall be free of rust or adhesion.
Quality Assurance Provisions
4.1 Inspection Responsibility
Unless otherwise specified in the contract or order, the contractor shall be responsible for completing all inspections specified in the technical specifications, and the contractor may use equipment suitable for the inspection requirements specified in the technical specifications. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in this specification.
4.2 Inspection Classification
The inspections specified in this specification are divided into:
A. Appraisal inspection (see 4.4);
B. Quality consistency inspection (see 1.5)
4.3 Inspection Conditions
Unless otherwise specified in this specification, all inspections shall be carried out in accordance with the provisions of GJB360.1. 1.4. Appraisal Inspection
Appraisal inspection shall be carried out at the superior appraisal agency. The test shall be conducted in a test space approved by the organization. The samples to be inspected shall be products produced by commonly used equipment and processes.
4.4.1 Sample size
For each model that requires identification inspection, & capacitor samples shall be submitted. 4.4.2 Inspection procedure
The sample shall be subjected to the identification inspection specified in Table 1 in the order listed. The sample shall be subjected to the inspection of the first group, and then the second and third groups shall be inspected respectively according to Table 1. 4.4.3 Head efficiency
When the head efficiency number exceeds the allowable chain specified in Table 1, the certificate of identification shall be refused. 1. Maintenance of the qualification for the contract
To maintain the qualification for identification, the contractor shall submit a report to the primary identification organization every 3 years. The primary identification organization shall specify the date of the first application. The report shall include the following contents:—5
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SJ 2003092
Product delivery inspection. The inspection results of Group A inspection (see 4.5.1.2) and Group B inspection (see 4.5.1.3) are summarized, giving the number of inspection batches and the number of failed samples, the test results of all repair batches and the repair situation; B. Identification and verification inspection, Group C inspection (see 4.5.2.1) and Group D inspection (no 4.5.2.1) inspection results are summarized, giving the number and pattern of failures. The summary should include the inspection results of all identification and verification inspections (Group C inspection and Group D inspection) conducted within three years. If the summary shows that the requirements of the specification are not met, and the measures taken to correct the non-conformity are not recognized by the adjustment agency If the above report is not submitted at the end of the 3-year period, the qualification for qualification will be lost. If the above report is not submitted at the end of the 3-year period, it can be extended for up to 90 days. If the above report is still not submitted by then, the qualification for setting will be lost.
Table 1 Identification inspection
Inspection or test
External welding and mechanical inspection
Equipment and structure
Manufacturing quality
Introduction to the performance of the E
Slip current
Quality factor (Q:
Alkali adjustment (instrument
Variable capacitor》
External and mechanical inspection
【Meat department）
Required article numberWww.bzxZ.net
3. 1.5. 3~-3. 3. 2
3. 1. 3. 4~ 3. 4. 1. 2
3. 15 ~3. 19. 3
3. 24 9. 20. 3
:3.9~3. 9.3
3, 1,3. 3~ 3. 4. 2. 2
3. 20~ 5. 20. 3 Capacitance characteristics (only for variable capacitors with tuning screw) Resistance to solvents Shock resistance (type of shock) Capacitance Quality factor (2) Adjustment of the machine (only for variable capacitors) Capacitance with rated load "life" (for variable capacitors) 3.9~~3.9.3 Inspection or test method number. 6. .2
Note: 1) A sample with one or more defects should be regarded as a defective product; 6
Number of samples to be inspected
and the allowable specifications
SJ 20030-92
2) The defect of the mark is based only on the appearance inspection, and the inspection mark is complete, clear and correct. Any defect cannot be used as the basis for determining the defect of the mark:
3) A sample should be taken from the group of B samples for visual and machine inspection. 4) It shall not be done when the conditions are not met.
4. 5 Quality and validity inspection
4.5.1 Product delivery inspection
Product delivery inspection consists of Group A inspection and Group B inspection. 4.5.1.1 Inspection batch
…An inspection batch shall consist of capacitors of the same category as those whose voltage ratings differ within 104V and current ratings differ within 20A, produced under basic phase-to-phase conditions and submitted for inspection. 4.5.1.2 Inspection of Group A
The inspection of Group A shall be carried out in accordance with the inspection and test specified in Table 2 and in the order listed. Each capacitor shall be subjected to Group A inspection. 4.5.1.3 Sampling plan for Group B inspection
The sampling inspection of Group B inspection shall adopt the general inspection level I of GJB17, and the acceptable quality level AQ!. The value shall comply with the provisions of Table 2, and serious defects shall be defined according to GJB170. Inspection of Group B shall be carried out in accordance with the inspection and test specified in Table 2 and in the order listed. 4.5.1.4 Wrong batch
When an inspection batch is judged as unqualified, the contractor shall collect the batch of products for repair, correct its defects, identify unqualified products, and resubmit for re-inspection. The resubmitted batch shall be subject to strict inspection. The selected batch shall be separated from the new batch and clearly marked as the resubmitted batch.
4.5.2 Authentication verification inspection
Authentication verification inspection consists of Group C inspection and Group D inspection. 4.5.2.1 Group C inspection and Group D inspection Group C inspection and Group ID inspection shall be carried out according to the inspection and test specified in Table 3 in the order listed in each group. Samples shall be drawn from products that have passed the product delivery inspection. Table Product delivery inspection
Inspection or test
Manufacturing quality
Quality rating
Capacitance
DC leakage current
Quality factor (Q)
Mechanical adjustment (only for variable capacitors)
Appearance and mechanical inspection
Material (not including external parts)
Design and design
Required clause number
9. 19~3. 19. 5
3. 20-~3. 20. 3
3. 9 - 3. 9. 3
3. 1,3. 3~3. 3. 1
3. 1,3. 4~3. 4. 1. ?
3. 3 ~~3. 9, 3
Mechanical adjustment (variable capacitor only)
Capacitance characteristic curve (variable capacitor with tuning screw only)
Inspection or test method
Meaning of the steam number
. 5. 3
(Serious defect)
No specific number is specified
One hundred percent inspection is required.
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SJ 20030—92
Note 1) Marking defects are based only on appearance inspection. The long-term inspection mark is clear, complete and correct. Any electrical defects thereafter cannot be considered to be caused by incorrect marking.
4.5.2.1.1 Sampling plan
At the beginning of the contract, 4 samples should be taken from the first inspection batch that has passed the product delivery inspection. Thereafter, 4 samples should be taken from the products that have passed the product delivery inspection produced in 6 months. The samples are divided into two groups according to Table 3. Table 3 Identification and verification inspection
Group inspection
Inspection or test
Impact (Specified pulse)
Dielectric withstand voltage
Capacitance
DC leakage porcelain
Quality factor (Q)
Mechanical adjustment (only for variable capacitors)
Capacitance characteristics by wire ((only for variable capacitors with tuning screws)
Solvent resistance
Temperature shock
Capacitance change with temperature
Appearance and mechanical inspection (internal
Life (only for variable capacitors)
Required item number
3. 9 ~ 3. 9. 3
3. I,3. 3-- 3. 4. 1. 2
3. 20~3. 20, 3
Chapter number of inspection or test
Method number
Number of samples to be inspected
Note: 1) In a certain group, a capacitor with one or more test peaks is counted as a non-conforming product. 4.5.2.1.2 Number of non-conforming products
If the number of non-conforming products exceeds the allowable number specified in Table 3, the sample should be considered invalid. 4.5.2.1.3 Sample handling
Samples that have been inspected by Group C or Group D shall not be delivered according to the contract or order. 4.5.2.1.4 Non-conforming
Number of non-conforming products allowed
If the sample fails to pass the identification and verification inspection, the contractor shall take necessary improvement measures on the materials and processes; and, for the basic All products produced with the same materials and processes and considered to have the possibility of similar failures after analysis should also take effective improvement measures. Before taking the improvement measures approved by the superior appraisal agency, the acceptance and shipment of the products should be suspended. After taking the improvement measures, samples should be re-drawn for identification and verification again (whether to do all items or only the failed items shall be decided by the superior appraisal agency). At this time, Group A and Group B inspections can continue to be carried out, but the final acceptance should be refused before the Group C and Group D inspections prove that the improvement measures are indeed effective. If the Group C and Group D inspections still fail, the failure should be reported to the superior appraisal agency.
4.5.3 Packaging inspection
4.5.3.1 Appearance
SJ 20030--92
Inspect the packaging storage and transportation marks according to the requirements of GB191. Inspect the delivery and receipt marks according to the requirements of G3638R, and inspect the outer dimensions of the packaging box according to the provisions of GJB 182. 4.5.3.2 Drop test
Sampling and inspection shall be carried out in accordance with the provisions of GB4857.1 and GB4857.5. The specific requirements shall be specified in the detailed specifications. After the test, inspection shall be carried out in accordance with the items specified in the A group test in Table 2. If unqualified, the original source shall be analyzed, the packaging shall be improved, and the product shall be qualified. 4.5.3.3 Vibration test
Sampling and inspection shall be carried out in accordance with the provisions of GB4857.1 and GB4857.10. The specific requirements shall be specified in the detailed specifications. After the test, inspection shall be carried out in accordance with the items specified in the A group test in Table 2. If unqualified, the original source shall be analyzed, the packaging shall be improved, and the product shall be qualified. 4.5.3.4 Moisture-proof packaging
Sampling and inspection shall be carried out in accordance with GB5048. The specific requirements shall be specified in the detailed specifications. 4.6 Inspection and test methods
4.6.1 Appearance and mechanical inspection
The capacitor material, design, structure, dimensions, marking and manufacturing quality shall be inspected and verified to see if they meet the requirements (see 3.1, 3.3~3.4.1.2 and 3.19~3.20.2). 4.6.1.1 Plating surface and guide rail (see 3.20.3) A wet PH test paper shall be attached to the plating surface to test whether there are cyanide or acid-reducing substances on the plating surface. If there are, the color of the test paper will change. If there are such stains on the silver plating layer at the end of the guide rail, it indicates that there is cyanide inside the guide rail. The corrosion or adhesion degree of the guide rail shall be checked by dilution, pulling, etc. 4.6.2 Dielectric voltage (see 3.5)
should be carried out in accordance with the provisions of GJB360.27, and the following should be adopted. Special conditions should apply high voltage at the minimum capacitance rating, maximum rated value and intermediate capacitance of the variable capacitor:
b. Test voltage type - alternating current H sinusoidal waveform: c. Test voltage value - see Table 4:
d. The duration of the test voltage is evenly increased from zero to the test voltage rating within 1 minute, and then the timing is started. It is stable for 5minl, and there should be no sparking, glowing and other phenomena. If sparking occurs within the first minute after the start of timing, the stabilization time is allowed to be extended to 6min. However, only the last Smin is tested; e. The location where the test voltage is applied - between the capacitor lead terminals, t. Failure criterion - during the 5min period of testing, the capacitor should not have arcing, flashing and sparking, and the capacitor should be free of damage after the test.
Note: The so-called glow refers to the reddish light (fixed or moving) that appears on the electrodes in the tube. The purple or blue light that appears in the tube cannot be considered as glow.
Table 4 Dielectric Pressure Test
Peak Test Rated Value 0.
4.6.3 Electricity (see 3.6)
Test Rated Value (Peak Value) 0~
0-0+21V
Should be carried out in accordance with the provisions of GJB360.31, and adopt the following rules 9
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a.Test frequency ~—1kHz±5%.
4.6.4 DC leakage current (see 3.7)
SJ 20030—92
A DC voltage of at least 60% of the rated value of the peak test voltage should be applied between the two terminals of the capacitor. For variable capacitors, it should be adjusted to the maximum nominal capacitance position, measure and record the DC leakage current, then reverse the polarity of the DC voltage, and measure and record the DC leakage current again.
4.6.5 Quality number (Q) (see 3.8))
It should be carried out in accordance with the provisions of GJB360.32 and adopt the following rules: H. Test frequency - 1MHz:
b. Special conditions - variable capacitors should be adjusted to the minimum capacitance rating or 10p (the larger of the two) position test
c. Failure criterion The quality factor (Q) should not be less than 1000. 4.6.6 Mechanical adjustment (variable capacitors only) (see 3.9%) Capacitors with tuning screws should apply the specified torque to each end gear by rotating the tuning screw (see 3.1). After the test, the capacitor should still meet the requirements of 3.9.1. Measure the maximum torque with an instrument or device that can indicate the maximum torque during the rotation of the tuning screw. The accuracy of each rotation of the tuning screw is 360\±45°, and the accuracy of each rotation of the tuning screw is 360\±45°. The starting torque and the torque for maintaining rotation should be tested. Stop after each rotation and then start measuring the next rotation. At least one complete tuning cycle should be tested. A complete tuning cycle starts from the maximum capacitance nominal value position, tunes to the minimum capacitance rated value position circle by circle and then tunes back to the maximum capacitance nominal value position circle by circle.
For variable capacitors without tuning screws, the maximum driving force should be measured (pull or thrust see 3.1). 4.6.6.1 Appraisal test
During the appraisal test, unless otherwise specified, the test specified in 4.6.6 should be carried out under the conditions of low ambient temperature of 26±3℃ and high ambient temperature of 1-℃. ||tt| |4.6.6.2 Quality consistency inspection
During the quality consistency inspection, the test specified in 4.6.6 shall be carried out at 26±3℃ for Group A and Group B, and at 26±3℃ low ambient temperature 1:-\℃ and high ambient temperature *℃ for Group C unless otherwise specified. 4.6.7 Capacitance characteristic curve (only for variable capacitors with tuning screws) (see 310). From the maximum capacitance nominal value position to the minimum capacitance rated value position, the capacitance shall be measured for each rotation of the tuning screw, and the measured capacitance values shall be plotted as a curve or table and compared with the specified capacitance characteristic curve (or the corresponding relationship table between the specified capacitance change and the rotation tuning reading). Each turn of the screw should rotate 360°-2°±2 is not a cumulative error. 4.6.8 Solvent resistance (see 3.11)
should be carried out in accordance with the provisions of GJB360.25, and the following rules should be adopted: a. The part of the sample to be brushed--the marked part: . The number of samples to be tested--according to the requirements of Table 1 or Table 3; C. The allowable degree of damage--according to the provisions of 3.15. 4.6.9 Temperature shock (see 3.12)
should be carried out in accordance with the provisions of (\JR360.7), and the following rules should be adopted: a. Test conditions-B:
b. Mid-term inspection-~Not applicable.
4.6.10 Vibration (see 3.13)
SI 20030--92
When required by regulations (see 3.1), it should be carried out in accordance with the provisions of (JB360.13), and the following detailed pretreatment (only for variable capacitors) should be adopted: adjust to the maximum capacitance nominal value position: a
Installation method-fixedly installed using the normal installation method of capacitors: c,
Sweep form-linear sweep. The speed is 10-55-10Hz and the same time is 1 minute:
Test direction-unless otherwise specified (see 3.1), only in the plane perpendicular to the axis: d.
Test time-unless otherwise specified (see 3.1), is 11; f. Medium load condition-50Hz, peak test voltage depends on the rated value:. Intermediate detection-the capacitor should be monitored for flying spots or breakdown. 4.6.10.1 High frequency perturbation (see 3.13)
When required by regulations (see 3.1), it should be carried out in accordance with the provisions of GJB360.15. And use the following details for pretreatment (only for variable electrical appliances) - Adjust to the maximum nominal value of capacitance: a
b. Installation method - Install firmly using the usual installation method for medium containers; Test condition code ~ According to regulations (see 3.1); c.
Duration and direction of vibration - According to regulations (see 3.1) d.
Electric load - 50Hz. Peak test voltage rating; e.
f. Intermediate detection - Monitor whether the capacitor has flying or breakdown. 4.6.11 Impact (specified pulse) (see 3.14) It should be carried out in accordance with the provisions of GJB 360.23, and use the following details: a. Test condition - K. The variable capacitor should be adjusted to the maximum nominal value of capacitance: b. Installation method Install securely using the usual installation method for capacitors; c. The direction and number of impacts - as specified (see 3.1); d. Electrical load - 50Hz, peak test voltage rating: e. The intermediate test should monitor whether the capacitor has arcing or breakdown. 4.6.12 Salt spray (see 3.15)
should be carried out in accordance with the provisions of GJB360.2, and the following rules should be adopted: a. Test level - B:
h. Failure criterion - as specified in 3.15,
4.6.13 Change of capacitance with temperature (see 3.16) The change of capacitance with temperature should be measured in accordance with the following provisions. 4.6.13.1 Variable capacitors
Measure and record the intermediate capacitance at 23 ± 3°C, expressed as C;
Put the capacitor in a test chamber with a high ambient temperature of 1:C (see 3.1) and measure and record the capacitance, expressed as C;
dPut the capacitor in a test chamber with a low ambient temperature of ti (see 3.1) and measure and record the capacitance, expressed as (; e.
F. Calculate CC:
g: Calculate the percentage of change in capacitance with temperature according to the following formula: Percentage of change == × 100%
YrKAoNiKAca-7 Capacitance characteristic curve (only refers to variable capacitors with tuning screw) (see 310). From the maximum capacitance nominal value position to the minimum capacitance rated value position, the capacitance should be measured for each turn of the tuning screw, and the measured capacitance value should be plotted as a curve or list, and compared with the specified capacitance characteristic curve (or the corresponding relationship table of the specified capacitance change and the rotation tuning reading). The tuning screw should rotate 360° for each turn - 2° ± 2 is not a cumulative error. 4.6.8 Solvent resistance (see 3.11)
should be carried out in accordance with the provisions of GJB360.25, and the following rules should be adopted: a. The part of the sample to be brushed - the marked part: . The number of samples to be tested - according to the requirements of Table 1 or Table 3; C. The allowable degree of damage - - according to the provisions of 3.15. 4.6.9 Temperature shock (see 3.12)
Shall be carried out in accordance with the provisions of (\JR360.7) and adopt the following combination: a. Test conditions - B:
b. Intermediate detection - ~ Not applicable.
4.6.10 Vibration (see 3.13)
SI 20030--92
When required by regulations (see 3.1), it shall be carried out in accordance with the provisions of (JB360.13) and adopt the following details: Pretreatment (only for variable capacitors) - Adjust to the maximum capacitance nominal value position: a
Installation method - Install firmly using the normal installation method of capacitors: c,
Frequency sweep form - Linear frequency sweep. The speed is 10-55-10Hz with 1 time Minutes:
Test direction - unless otherwise specified (see 3.1), only in the plane perpendicular to the axis: d.
Test time - unless otherwise specified (see 3.1), 11; f. Medium load condition - 50Hz, peak test voltage depends on the set value:. Intermediate detection - the capacitor should be monitored for flying spots or breakdown. 4.6.10.1 High frequency perturbation (see 3.13)
When required by regulations (see 3.1), it should be carried out in accordance with the provisions of GJB360.15. And use the following details for pretreatment (only refers to variable electrical appliances) - adjust to the maximum capacitance nominal value: a
b. Installation method - firmly install using the normal installation method of medium containers; Test condition code ~ according to regulations (see 3. 1); c.
Duration and direction of vibration - as specified (see 3.1) d.
Electrical load - 50Hz. Peak test voltage rating; e.
f. Intermediate detection - the capacitor should be monitored for arcing or breakdown. 4.6.11 Impact (specified pulse) (see 3.14) shall be carried out in accordance with the provisions of GJB 360.23 and the following details shall be adopted: a. Test conditions - K. The variable capacitor shall be adjusted to the maximum capacitance nominal value position: b. Installation method: Install it firmly using the usual capacitor installation method; c. Direction and number of impacts - as specified (see 3.1); d. Electrical load - 50Hz, peak test voltage rating: e. Intermediate detection should monitor the capacitor for arcing or breakdown. 4.6.12 Salt spray (see 3. 15)
Should be carried out in accordance with the provisions of GJB360.2 and adopt the following rules: a. Test level - B:
h. Failure criterion - According to 3.15,
4.6.13 Changes in capacitance with temperature (see 3.16) Changes in capacitance with temperature should be measured in accordance with the following provisions. 4.6.13.1 Variable capacitors
Measure and record the intermediate capacitance value at 23 ± 3°C, expressed in C; .
Put the capacitor in a test box with a high ambient temperature of 1:C (see 3.1) Measure and record the capacitance, expressed in C,; e
d Put the capacitor in a test box with a low ambient temperature of ti (see 3.1): Measure and record the capacitance, expressed in (; e.
F. Calculate CC:
g: Calculate the percentage of change in the temperature of the electroporation according to the following formula: Percentage of change == × 100%
YrKAoNiKAca-7 Capacitance characteristic curve (only refers to variable capacitors with tuning screw) (see 310). From the maximum capacitance nominal value position to the minimum capacitance rated value position, the capacitance should be measured for each turn of the tuning screw, and the measured capacitance value should be plotted as a curve or list, and compared with the specified capacitance characteristic curve (or the corresponding relationship table of the specified capacitance change and the rotation tuning reading). The tuning screw should rotate 360° for each turn - 2° ± 2 is not a cumulative error. 4.6.8 Solvent resistance (see 3.11)
should be carried out in accordance with the provisions of GJB360.25, and the following rules should be adopted: a. The part of the sample to be brushed - the marked part: . The number of samples to be tested - according to the requirements of Table 1 or Table 3; C. The allowable degree of damage - - according to the provisions of 3.15. 4.6.9 Temperature shock (see 3.12)
Shall be carried out in accordance with the provisions of (\JR360.7) and adopt the following combination: a. Test conditions - B:
b. Intermediate detection - ~ Not applicable.
4.6.10 Vibration (see 3.13)
SI 20030--92
When required by regulations (see 3.1), it shall be carried out in accordance with the provisions of (JB360.13) and adopt the following details: Pretreatment (only for variable capacitors) - Adjust to the maximum capacitance nominal value position: a
Installation method - Install firmly using the normal installation method of capacitors: c,
Frequency sweep form - Linear frequency sweep. The speed is 10-55-10Hz with 1 time Minutes:
Test direction - unless otherwise specified (see 3.1), only in the plane perpendicular to the axis: d.
Test time - unless otherwise specified (see 3.1), 11; f. Medium load condition - 50Hz, peak test voltage depends on the set value:. Intermediate detection - the capacitor should be monitored for flying spots or breakdown. 4.6.10.1 High frequency perturbation (see 3.13)
When required by regulations (see 3.1), it should be carried out in accordance with the provisions of GJB360.15. And use the following details for pretreatment (only refers to variable electrical appliances) - adjust to the maximum capacitance nominal value: a
b. Installation method - firmly install using the normal installation method of medium containers; Test condition code ~ according to regulations (see 3. 1); c.
Duration and direction of vibration - as specified (see 3.1) d.
Electrical load - 50Hz. Peak test voltage rating; e.
f. Intermediate detection - the capacitor should be monitored for arcing or breakdown. 4.6.11 Impact (specified pulse) (see 3.14) shall be carried out in accordance with the provisions of GJB 360.23 and the following details shall be adopted: a. Test conditions - K. The variable capacitor shall be adjusted to the maximum capacitance nominal value position: b. Installation method: Install it firmly using the usual capacitor installation method; c. Direction and number of impacts - as specified (see 3.1); d. Electrical load - 50Hz, peak test voltage rating: e. Intermediate detection should monitor the capacitor for arcing or breakdown. 4.6.12 Salt spray (see 3. 15)
Should be carried out in accordance with the provisions of GJB360.2 and adopt the following rules: a. Test level - B:
h. Failure criterion - According to 3.15,
4.6.13 Changes in capacitance with temperature (see 3.16) Changes in capacitance with temperature should be measured in accordance with the following provisions. 4.6.13.1 Variable capacitors
Measure and record the intermediate capacitance value at 23 ± 3°C, expressed in C; .
Put the capacitor in a test box with a high ambient temperature of 1:C (see 3.1) Measure and record the capacitance, expressed in C,; e
d Put the capacitor in a test box with a low ambient temperature of ti (see 3.1): Measure and record the capacitance, expressed in (; e.
F. Calculate CC:
g: Calculate the percentage of change in the temperature of the electroporation according to the following formula: Percentage of change == × 100%
YrKAoNiKAca-
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