This standard specifies the safety requirements for double-capped fluorescent lamps for general lighting with the following lamp caps: Fa6, Fa8, G5, G13, 2G13, R17d and W4.3×8.5d. This standard specifies the method for determining whether the manufacturer's products meet the requirements of this standard based on the evaluation of all products and the test records of the manufacturer's finished lamps. This method can also be used for product certification. This standard also specifies the details of the inspection procedure for evaluating batch products. GB 18774-2002 Safety requirements for double-capped fluorescent lamps GB18774-2002 standard download decompression password: www.bzxz.net

GB18774—2002
All technical contents of this standard are mandatory.
This standard is equivalent to the International Electrotechnical Commission IEC 61195.1999 Safety requirements for double-capped fluorescent lamps, and is completely consistent with IEC 61195 in terms of technical content and writing format.
In 2.3.2 of this standard, the national standard GB2799 "Types and dimensions of plug-in lamp holders" and the gauges of GB/T6997 plug-in lamp holders are quoted, so Table 3 in IEC 61195 (the loose-leaf number of IEC 60061 corresponding to the lamp holder and the corresponding gauge) is cancelled. Tables 3, 4, 5 and 6 in this standard correspond to Tables 4, 5, 6 and 7 in IEC61195 respectively. Appendix A, Appendix B and Appendix D of this standard are the appendices of the standard. Appendix C and Appendix E of this standard are the appendices of the reminder. This standard is proposed by China National Light Industry Council. This standard is under the jurisdiction of the Electric Light Source and Its Annex Subcommittee of the National Technical Committee for Standardization of Lighting Appliances. The drafting units of this standard are: Beijing Electric Light Source Research Institute, East China Electronics Group Co., Ltd. The drafters of this standard are: Qu Suhui, Yang Xiaoping, De Ning, Cheng Pengzhou. GB18774—2002
IEC Foreword
1) IEC (International Electrotechnical Commission) is a worldwide standardization organization composed of national electrotechnical committees (IEC national committees) in the world. The purpose of IEC is to promote international cooperation on standard issues related to the electrical and electronic fields. For this purpose, among other activities, IEC also publishes international standards. The formulation of standards is entrusted to various technical subcommittees: any IEC national committee that is interested in the subject under discussion can participate in the formulation of the standard. All international, governmental and non-governmental organizations that have liaison relations with TEC can also participate in the formulation of standards. There is an agreement and close cooperation between IEC and the International Organization for Standardization (ISO). 2) IEC's formal resolutions and agreements on technical issues are made by technical committees, and all interested national committees are represented. Therefore, these resolutions and agreements express the international consensus on the issue to the greatest extent possible. 3) Recommended standards, technical specifications, technical reports or guidelines published for international use are adopted by national committees in a certain sense.
4) In order to promote international unification, IEC national committees should ensure that IEC international standards are used as equally as possible in their national and regional standards. Any differences between IEC standards and national or regional standards should be clearly stated in the latter. 5) IEC committees do not provide any marking method to indicate recognition and are not responsible for any equipment that claims to comply with a standard of the IEC committee.
6) Note that some of the contents of this international standard may involve patent issues. IEC is not responsible for the identification and identification of all such patents.
IEC 61195 International Standard was prepared by Technical Committee 34A (Lighting) of Technical Committee 34 (Lighting and related annexes). This standard is the second edition of IEC 61195, which replaces both the first edition of 1993 and the revision No. 1 of 1998, and has some technical content modifications.
This standard is based on the following documents:
34A/886/FDIS
Voting Report
34A/900/RVD
Details of the voting results of this standard can be found in the voting reports listed in the table above. This standard was prepared in accordance with Part 3 of the ISO/IEC Directives. Annexes A, B and D are the official contents of this standard. Annexes C and E are for reference only. National Standard of the People's Republic of China
Safety requirements for double-capped fluorescent lamps
Double-capped fluorescent lamps--Safety specifications1—General requirements
1.1 Scope
GB 18774-2002
idt IEC 61195:1999
This standard specifies the safety requirements for double-capped fluorescent lamps for general lighting with the following lamp caps: Fa6, Fa8, G5, G13, 2G13, R17d and W4.3X8.5d.
This standard specifies the method for determining whether the manufacturer's products meet the requirements of this standard based on the evaluation of all products and the test records of the manufacturer on the finished lamps. This method can also be used for product certification. This standard also specifies the details of the inspection procedure for evaluating batch products. Past: The qualification conditions of this standard only involve safety indicators, and do not consider the indicators of luminous flux, color shading, automatic and working characteristics of double-capped fluorescent lamps for general lighting. Those who use this standard should refer to GB/T 10682 Performance requirements for double-capped fluorescent lamps. 1.2 References
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T5169.10-1997 Fire hazard test for electric and electronic products - Test methods - Hot wire test methods - General rules (idt IEC 60695-2-1/0:1994)
GB7000.1-1996 Luminaires - Requirements and tests (idt IEC60598-1:1992) GB/T14044-1993 Ballasts for tubular fluorescent lamps - Performance requirements (neq IEC60921:1988) GB/T10682-2002 Performance requirements for double-capped fluorescent lamps (neg IEC 60081:1997) GB2799-2001 Types and dimensions of plug-in lamp caps (egvTEC 60061-1:1999) GB/T6997-2001 Pin-type lamp cap gauge (eqvIEC60061-3:1999) IEC60061-1:2001 Lamp caps, lamp holders and gauges for testing their interchangeability and safety Part 1: Lamp caps IEC60061-2:2001 Lamp caps, lamp holders and gauges for testing their interchangeability and safety Part 2: Lamp holders IEC60061-3, 2001 Lamp caps, lamp holders and gauges for testing their interchangeability and safety Part 3: Gauges IEC60410:1973 Sampling plans and procedures for inspection by counting 1.3 Definitions
This standard adopts the following definitions.
1.3.1 Double-capped fluorescentlamp Double-capped tubular low-pressure mercury vapor discharge lamp. Most of its light is emitted by the ultraviolet light generated by the discharge activating the fluorescent coating. 1.3-2 Group
Lamps with the same rated electrical and cathode characteristics, the same geometric dimensions and starting methods. 1.3.3 Type
Lamps of the same category with the same light characteristics and color characteristics. 1.3.4 Family
Lamps with the same materials, components, tube diameters and/or processing methods. Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on June 13, 2002 and implemented on April 1, 2003
1.3.5 Nominal wattage The wattage indicated on the lamp.
1.3.6 Design test
GB 18774—2002
Tests conducted on samples of a category or class to verify their design compliance according to relevant provisions. 1.3.7 Routine test
One or a series of tests conducted at regular intervals to verify whether a certain product deviates from the design requirements in certain aspects. 1.3.8 Running test
A test that is frequently performed to provide data for evaluation. 1.3.9 Batch
Refers to the total number of lamps of the same type and/or category submitted at the same time for testing or verifying eligibility. 1.3.10 Whole production refers to the total number of lamps of various models produced within 12 months in accordance with this standard. These lamps must be listed in the list provided by the manufacturer, which is also an integral part of the inspection certificate.
2 Safety requirements
2.1 General
The design and structure of the lamp should ensure that the lamp will not cause harm to the user or the environment during normal use. Pass band, conduct all prescribed tests to verify eligibility. Note: Due to the length of the lamp tube, some difficulties may arise during the test, and the manufacturer and the inspection department may be required to reach a consensus to resolve it. 2.2 Marking
2.2.1 The following marks shall be clearly and durably marked on the lamp. a) Source mark (may be in the form of a trademark, manufacturer or seller name, etc.); b) Nominal power (marked with \W\ or \W\) or other marks that can characterize the characteristics of the lamp. 2.2.2 Check the qualification of the mark according to the following methods. a) Use visual method to check whether there is a mark and the potential clarity of the mark b) Use the following method to check the durability of the mark on an unused lamp: After wiping the mark on the lamp with a soft cloth soaked in water for 15 s, the mark should still be clear. 2.3 Mechanical requirements for lamp holders
2.3.1 Structure and assembly
The structure of the lamp holder and the assembly of the lamp holder and the lamp tube should ensure that all parts of the entire lamp remain well connected during and after operation. Its qualification is checked by the following test.
2.3.1.1 Lamps using G5, G13 and R17d lamp caps: a) For unused lamps, the pins shall be subjected to a torque test in accordance with the following requirements to verify their compliance: The lamp cap shall be able to be firmly connected to the lamp holder when subjected to the torque listed in Table 1, and the rotation angle between the various parts of the lamp cap shall not exceed 6°. Table 1 Torque values ​​for unused lamps
The torque shall be gradually increased from zero to the value specified in Table 1, and shall not be applied suddenly. Torque value/Nm
The test lamp holder shown in Appendix A of this standard shall be used for the torque test. The test lamp holder for R17d lamp cap is still under study. b) After the lamp cap is heated at a temperature of (120±5)℃ for (2000±50)h, it shall be able to be semi-firmly connected to the lamp tube when subjected to the torque specified in Table 2, and the rotation angle between the various parts of the lamp cap shall not exceed 6°. GB18774—2002
For lamps with G13 lamp holders and rated power greater than 40W, the heating temperature is (140±5°C. Table 2 Torque value after heating
Torque value/Nm
2.3.1.2 For lamps with Fa6 and Fa8 lamp holders, the compliance of unused lamps shall be checked by visual inspection. 2.3.1.3 For lamps with 2G13 lamp holders:
a) For unused lamps, when an axial tensile force of 40 N or a bending moment of 3 Nm is applied, the lamp holder shall be firmly bonded to the glass tube. When applying the bending moment, the part of the glass tube closest to the lamp holder shall be evenly held, with the fulcrum located at the reference plane of the lamp holder (the plane intersecting with the lamp holder). Tension and bending moment shall not be applied suddenly, but shall be increased gradually from to to the specified value. b) When the lamp is heated at (120 ± 5) °C for (2000 ± 50) h and tension and bending moment are applied, the lamp cap shall be firmly bonded to the glass tube (the tension and bending moment values ​​are under study). 2.3.2 Lamp cap size requirements
2.3.2.1 The lamp cap shall comply with the requirements of GB/T 2799. 2.3.2.2 Use the gauge shown in GB/T 6997 to check its compliance. 2.4 Insulation resistance
2.4.1 The insulation resistance between the metal shell and the pins or contacts of the lamp cap shall not be less than 2Mn. 2.4.2 Use 500 V DC and appropriate testing equipment to check its compliance. 2.5 Dielectric strength
2.5.1 This test is not performed on lamps equipped with internal resistance lamp caps. 2.5.2 The insulator between the lamp housing and the pins or contacts shall be subjected to a voltage test. During the test, no flash or breakdown shall occur. 2.5.3 Compliance shall be checked by applying a 50 Hz (or 60 Hz) 1 500 V sinusoidal AC voltage for 1 min. The initial voltage shall not exceed half of the value specified above and then be rapidly increased to the specified value. Glow discharge without voltage drop is negligible. 2.6 Parts that may accidentally become live
2.6.1 Metal parts insulated from live parts shall not become live. 2.6.2 Live parts shall not protrude from any part of the lamp cap other than the lamp cap pins. 2.6.3 Compliance shall be checked by an appropriate detection system, including appropriate use of visual inspection. In addition, regular daily equipment inspections or acceptance effectiveness checks shall be carried out. See 3.5.4. 2.7 Heat resistance and fire resistance
2.7. 1 The insulating material of the lamp cap shall be heat resistant. 2.7.2 The following test is used to check its qualification: Place the sample in a heating box and heat it at a temperature of (125 ± 5) ° C for 168 h. For lamps with a nominal power greater than 40 W installed with a G13 lamp cap, the sample heating temperature should be (140 ± 5) ° C. After the test, the sample shall not show any changes that impair its safety, in particular, the following aspects shall not appear:
The protection against electric shock required by 2.4 and 2.5 is reduced. The pins of the lamp cap are loose, cracked, bulged and shrunken. Check by visual method. After the test, its dimensions shall comply with the requirements of 2.3.2. 2.7.3 External insulating parts shall have abnormally high temperature resistance and anti-combustion performance. 2.7.4 The following test is carried out to check its qualification. The sample is tested with a sickle chrome glow wire heated to 650 ° C. The test device is described in GB/T 5169.10. The test sample should be installed vertically on the bracket, close to the end of the glow wire and apply a force of 1N. The best test position is 15mm or more than 15mm from the upper edge of the sample. The depth of the glow wire penetrating into the sample is limited to 7mm by mechanical means. After 30s, the sample is out of contact with the glow wire. After the sample is removed from the glow wire, any burning flame on the sample should be extinguished within 30s, and any burning or melting falling material should not ignite the five layers of thin paper placed horizontally below the sample at a distance of (200±5)mm. The glow wire temperature and heating current should be constant for 1min before starting the test. However, it should be ensured that the heat radiation does not affect the sample during this period. The armored high-sensitivity thermocouple wire is used to measure the temperature seat at the top of the glow wire. The structure and calibration of the thermocouple should comply with the requirements of GB/T5169.10. Note: For personal safety, measures should be taken to prevent the following dangers during the conduction test. Explosion or fire!
Inhalation of smoke and/or hazardous substances:
- Produces toxic materials.
2.8 Creepage distance of lamp holders
2.8.1 The minimum creepage distance between the lamp holder pins or contacts and the metal shell of the lamp holder shall comply with the requirements of GB2799. 2.8.2 Measure at an abnormally unfavorable position to verify its compliance. 2.9 Temperature rise of lamp holders
2.9.1 For lamps using G5, G13 and 2G13 lamp holders and designed to work with a starter, the surface temperature rise of the lamp holder shall not exceed 95K when it is higher than the ambient temperature. For lamps using W4.3×8.5d lamp holders, the temperature rise of the lamp holder measurement point shall not exceed 55K (see Figure 1). 2.9.2 Check the qualification according to the procedure specified in Appendix B. For qualification conditions, see D4, 2.9.3. If it can be proved that the temperature rise of the lamp cap of a certain category of lamps is the highest among a given lamp type, it is only necessary to test the temperature rise of the lamp cap of this category of lamps to determine the qualification of all lamps with opposite lamp caps. For example: a lamp with a nominal diameter of 26 mm. 2.10 Minimum total length of lamp
2.10.1 To ensure the firmness of the lamp in the lamp, the minimum total length of the lamp shall comply with the following provisions: Lamps with G5 and G13 lamp caps: B minimum value -0.2 mm (tentative); Lamps with Fa8 lamp caps: B minimum value; Lamps with R17d and Fa6 lamp caps: C minimum value. B minimum and C minimum values ​​are specified in the relevant parameter table of GB/T10682. For lamps not specified in the standard, refer to the parameters provided by the manufacturer.
2.10.2 Verify its qualification by testing.
2.11 Lamp design parameters
See Appendix C.
2.12 Ballast design parameters
See Appendix E.
3 Assessment
3.1 General
GB 18774- 2002
This chapter specifies the method for determining whether the manufacturer's products meet the requirements of the standard based on the assessment of all products and the test records of finished lamps. This method can also be used for product certification. 3.2, 3.3 and 3.5 give detailed rules for assessment using manufacturer's records. 3.4 and 3.6 give detailed rules for batch inspection procedures for limited assessment of batch products. The various requirements for batch inspection include the content of assessing various aspects of batch products containing unsafe lamps. If certain safety requirements cannot be verified through batch testing, and there may be no ready-made basis for the quality of the manufacturer's products, the results of batch inspection cannot be used for product certification, nor can batch products be accepted. At this time, when inspecting batch products, the inspection agency can only determine that the batch products have only a certain degree of safety. 3.2 Assessment of all products using manufacturer's records 3.2.1 The manufacturer shall provide evidence that his products meet 3.3 Specific assessment requirements. For this purpose the manufacturer shall provide all results of finished product tests relevant to the requirements of this standard.
3.2.2 Test results may be extracted from work records but not directly as inspection. 3.2.3 In general, the assessment shall be for a single factory that complies with the requirements of 3.3. However, if several factories are under the same quality management, they may be grouped together. For certification purposes, one certificate may be issued for these designated factories. However, the certification authority has the right to visit each factory in order to examine the relevant local records and quality control procedures. 3.2.4 For certification purposes, the manufacturer shall submit a list with the source identification and the corresponding types, categories and models of lamps within the scope of this standard produced by the designated factory. The records in the certificate shall include all lamps listed and manufactured by the manufacturer. Supplementary or additional notices may be issued at any time.
3-2.5 When submitting test results, the manufacturer may summarize the test results for different types, categories and/or models of lamps in accordance with column 4 of Table 3.
All product assessment requirements The manufacturer's quality control procedures shall comply with the requirements of the most recognized and tested quality system. Within the scope of a quality system based on on-line inspection and testing, the manufacturer may demonstrate that its products conform to certain requirements of the standard by on-line inspection rather than by finished product testing.
3.2.6 The manufacturer shall provide adequate test records related to each item in column 5 of Table 3. 3.2.7 The number of non-compliance records of the manufacturer shall not exceed the limits shown in Table 4 or Table 5 in relation to the acceptable quality level (AQL) value in column 6 of Table 3.
3.2.8 The period of re-assessment need not be limited to a predetermined number of years but may be a continuous 12 months following the date of the previous assessment. 3.2.9 A manufacturer that has previously complied but no longer complies with the specified standards shall be eligible to apply for compliance with this standard if it can show the following.
a) Compensatory measures have been taken as soon as the above trend is confirmed from its test records. b) The specified acceptance level is restored within the following time: 1) 6 months for 2.3.1 and 2.9;
2) 1 month for other items.
After taking the corrective measures in 2.3.1 and 2.9 above, if compliance is determined, the period of nonconformity in the test records of these types, categories and/or models will be removed from the 12-month accumulation, and the test results related to the correction period will be retained in the records. 3.2.70 For manufacturers who do not meet the requirements of a certain item in the test record classification specified in 3.2.5, if additional tests prove that the problem only exists in certain types, categories and/or models, their production qualifications for all types, categories and/or models of lamps will not be cancelled. In this case, these types, categories and/or models will either be treated as complying with 3.2.9 or deleted from the list of types, categories and/or models. The manufacturer may claim that this is in compliance with this standard. 3.2.11 Lamps of a type, class and/or model removed from the list in accordance with 3.2.10 (see 3.2.4) may be reinstated if satisfactory results are obtained from testing a number of lamps equal to the minimum annual sample size for the clause in which the nonconformity occurred as specified in Table 3, and such samples may be collected over a shorter period. 3.2.12 For new products, which may have the same characteristics as existing lamp types, classes and/or models, these characteristics may be considered as conforming provided the manufacturer includes the new products in the sampling plan from the outset. Any characteristics not covered shall be tested before production begins. 3.3 Assessment of manufacturer-specific test records Table 3 specifies the types of tests and other methods used to assess conformity to the requirements of the various clauses. Repeating the type test is only necessary if there are major changes in the physical or mechanical construction, materials or manufacturing process of the product and only for the properties affected by the change. 3.4 Batch scrapping conditions
If the number of failures specified in Table 6 and Appendix D is reached, the scrapping shall be established without considering the total number of samples. For a specific test, once the number of failures is reached, the batch of products shall be reported. 3.5 Sampling procedure for testing of all products
3.5.1 The conditions of Table 3 shall apply.
3.5.2 Acceptance testing of all products shall be carried out at least once a day, and may also be carried out based on online inspection and testing. The frequency of various tests may be different as long as the conditions of Table 3 are met. 3.5.3 The testing of all products shall be carried out on samples randomly selected after production is completed, and the number of samples shall not be less than that shown in column 5 of Table 3. Lamps selected for one test shall not be used for other tests. 3.5.4 For the requirements for testing all products with accidentally live parts (see 2.6), the manufacturer shall confirm that there is continuous 100% inspection. 3.6 Sampling Procedure for Batch Tests
3.6.1 The lamps to be tested shall be selected by a method agreed upon by both parties to ensure adequate representation. The selection shall be random and, if possible, drawn from 1/3 of the total number of boxes in the batch, with a total number of boxes of at least 10. 3.6.2 In order to prevent accidental breakage of the bundle, a certain number of lamps shall be selected in addition to the number of test lamps. These lamps shall only replace the number of test lamps when they are needed to make up the number of test lamps. In the event of accidental breakage of lamps, it is not necessary to replace them if it does not affect the test results and the number of lamps meets the test requirements below. If replaced, these broken lamps shall be ignored in the calculation of the results. Lamps with broken glass bulbs removed from the packaging boxes during transportation shall be counted as test lamps. 3.6.3 The number of lamps in the batch sample
shall be at least 500 lamps (see Table 6).
3.6.4 Test sequence
The tests shall be carried out in the order of the clause numbers listed in Table 6 up to and including 2.5.3. Subsequent tests may damage the lamp and each test sample shall be taken separately from the original sample. Table 3 Classification of test records—Sampling numbers and acceptable quality levels
Clause number
2.2.2a)
[2.2.2b]
[2.3.1.1a)
2.3.1,3a)
2.3.1.1b)
2.3.1.3b)
2.3.1.2
2.3.2.2
Test items
Marking clarity
Marking durability
Lamp cap structure and assembly of unused lamps (except Fa6 and Fa8 lamp caps)
Lamp cap structure and assembly after heat test (except Fa6 and Fa8 lamp caps)
Lamp cap structure and assembly of unused lamps (except Fa6 and Fa8 lamp caps) Lamp holder)
Lamp holder size requirements
Test type
Acceptance test
Routine test
Side test
Type test
Routine combat test
Routine test
Tests between several categories of lamps
Allowed accumulation of records
All categories using the same marking method
All categories using the same marking method
[All categories using the same bonding material, the same lamp holder and having the same nominal diameter
Using the same bonding material, the same lamp holder and having the same nominal diameter All types with the same nominal diameter
All types with the same bonding material and the same lamp cap
All types with the same lamp cap
Minimum number of annual cumulative sampling
Annual major annual non-major
Production lamps
Production lamps
See D1
Clause number
Test items
Insulation resistance
Dielectric strength
External live parts
Lamp cap creepage distance
Lamp cap wet opening
Minimum total length of lamp tube
GB 1B774-2002
Table 3 (end)
Tests between several types of lamps
Test type
Egg test
Type test
100% visual method
Type test
Type test
Type test
Type test
Acceptance test
Acceptable accumulation of records
Using the same lamp cap and having the same nominal diameter
All types
Using the same lamp cap and having the same nominal diameter| All types of diameters All types of lamps and models All types of lamps with the same lamp holder and the same nominal diameter All types of lamps with the same lamp holder and the same nominal diameter Annual sample quantity Annual main production lamps Annual non-main production lamps See D3 All types of diameters All types of lamps with the same lamp holder and the same nominal diameter See 2. 9.3 Selected lamps
All categories
See D4
Note: Except for the type test (Annex D) in which the lamp can be tested at either end, both ends of the other tests should be tested. If one or both ends of the lamp do not meet the requirements, the lamp is unqualified
1) For the usage of this case, see [EC 60410.
2) Under study.
Table 4 Number of qualified judgments when AQL=0.65%
Part 1
Number of lamps in manufacturing records
81~125
126~200
201~260
261-315
316~400
401500
501~600
601~700
701800
801~920
921~1040
1 041~-1140
1 141~-1 250
1 251~~1 360
1 361~~1 460
14611570
1 571~1 680
1 681～1 780
1 781~1 B90
1 891~2 000
Number of qualified judgments
Number of lamps in the manufacturer's record
24 500
145000
305000
1000000
Part 2
According to the percentage of lamps in the record
Compared to the acceptance limit
Part 1
Number of lamps in the manufacturer's record
81~100
101125
126~145
146~170
171200
201~225
226255
256285
286315
316335
336~360||tt ||361~390
391420
421~145
446~475
476500|| tt||501535
536560
561590
591~620
621~650|| tt||651~680
681710
711-745
746~775
776~80 5
B06845
846880
881~915
916~955
956～1 000
Tea model group number
2. 2. 2a)
2. 2. 26)
2. 3. 2. 2
Marking clarity
Marking durability
Minimum total length of lamp tube
Pure insulation resistance
Lamp holder size requirements
Accidentally live parts
GB 18774—2002
Table 5 Number of qualified judgments when AQL=2. 5% Number of qualified judgments
Number of lamps in manufacturing records
11 000
34 000
60 000
110000
500000
1000 000
Table 6 Number of batch samples and number of failures
Part 2
According to the percentage of lamps in the record
Compared to the acceptance limit
Number of samples
Number of failures
Using D2
Drum number
2. 3. 1. 1e)
2. 3. 1. 1b)
Lamp cap construction and assembly (unused lamps) Dielectric strength
Lamp cap construction and assembly (after heating)
Lamp cap dielectric distance
Lamp cap temperature rise
1) Under study.
GB 18774-2002
Table 6 (end)
Number of samples
Number of unqualified
Adopt D2
Adopt 1
Adopt D3
Adopt D3
Adopt D3
This test is not applicable
GB 18774-2002
Appendix A
(Annex to the standard)
Torque test for lamps using G5, G13 lamp capsLampholder petal surface X—Xbzxz.net
Surface heat
Daytime minimum value
Approximate value
Approximate value
Minimum value
Forward: The schematic diagram only shows the inspection dimensions of the lampholder. If the accuracy of the inspection is to be further confirmed, it is only necessary to inspect the compliance of these dimensions. Figure A1
Lamp holder for torque test of lamps using double-pin lamp holders mm
In order to ensure proper engagement of the lamp holder and the lamp holder during the test, a positioning device that can provide sufficient support for the lamp should be installed at an appropriate distance from the lamp holder.
The surface of the lamp holder should be in close contact with the surface of the special lamp holder. Appendix B
(Appendix to standard push)
Lamp holder temperature rise test
The test should be carried out under the following conditions:
The test circuit should use the base push ballast specified in GB/T14044: the power supply voltage should be 110% of the rated voltage of the reference ballast, and the starter circuit should be continuously closed. B2
B3The lamp used for the test should be produced with the correct tape,And it is a specially manufactured cathode deactivated lamp, that is, there is no cathode emission. 4 The test lamp should be hung with a nylon rope and placed in an environment without convection wind and at a temperature of (25 ± 5) C. The plane passing through the lamp holder pins should be horizontal.
B5 The electrical connection between the lamp tube and the lamp holder pins should use a wire with a cross-sectional area of ​​1mm ± 5%.
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