This standard applies to the safety of projectors and similar appliances for household and similar purposes with a rated voltage not exceeding 250V. Appliances that are not for household use but may pose a danger to the public, such as those used by non-professionals in schools, offices, shops and similar places, are also included in this standard. From practical considerations, this standard covers common hazards caused by appliances encountered by all people in and around the room. This standard generally does not take into account: - Use of appliances by unsupervised children or infirm people; - Children using appliances as toys. GB 4706.43-1999 Safety of household and similar electrical appliances Special requirements for projectors and similar appliances GB4706.43-1999 Standard download decompression password: www.bzxz.net

GB4706.43-1999
This standard is equivalent to IEC60335-2-56:1997 Safety of household and similar electrical appliances Part 2: Particular requirements for projectors and similar appliances". This standard should be used in conjunction with GB4706.1-1998 "General safety requirements for household and similar electrical appliances".
The part of this standard marked "applicable" indicates that the corresponding provisions in GB4706.1-1998 are applicable to this standard; the part of this standard marked "replace" or "modified" shall be subject to this standard; the part of this standard marked "addition" indicates that in addition to complying with the corresponding provisions in GB4706.1-1998, it shall also comply with the provisions added by this standard. This standard was proposed and approved by the National Technical Committee for Household Electrical Appliances Standardization. The main drafting unit of this standard: China Household Electrical Appliances Research Institute. The main drafters of this standard: Xu Li, Ma Dejun, this standard is entrusted to the National Technical Committee for Household Electrical Appliances Standardization for interpretation Explanation. GB4706.431999
IEC Foreword
1) IEC (International Electrotechnical Commission) is an international standardization organization composed of all national electrotechnical committees (IEC National Committees). Its purpose is to promote international cooperation on standardization issues related to electrical and electronic fields. To this end, IEC carries out international standardization activities and publishes international standards. The formulation of these standards is entrusted to various technical committees. Any IEC National Committee interested in the technical issue can participate in the formulation work. International, governmental and non-governmental organizations that have contact with IEC can also participate in this work. IEC Close cooperation with the International Organization for Standardization (ISO) on the basis of an agreement between the two organizations. 2) Formal decisions or agreements of the IEC on technical issues, drawn up by technical committees in which all national committees with a particular interest in the subject are represented as far as possible by the international consensus on the issues involved. 3) These formal decisions or agreements, published in the form of standards, technical reports or guidelines, are accepted by the national committees in this sense.
4) In order to achieve international consensus, the IEC National Committees agree to use IEC International Standards to the greatest extent possible in their national and regional standards. Differences between IEC standards and corresponding national or regional standards should be clearly indicated in the latter. 5) The IFC has not established a procedure for the recognition mark. IEC assumes no responsibility for the claim that a device complies with an IEC standard.
6) Attention should be paid to the fact that some elements of this standard may involve patent rights. IEC does not take any position on any patent rights. This standard was prepared by TEC Technical Committee 61 (Safety of Household and Similar Electrical Appliances). This standard constitutes [EC 60335-2-56 2nd edition, replaces the 1st edition of 1990. This standard is based on the following documents:
61/1049/FDIS
Voting report
61/1190/RVF
Full material on the adoption of this standard can be found in the voting report shown above. This standard should be used in conjunction with the latest version of IEC 60335-1 and its supplements. This standard is based on the 3rd edition (1991) of IEC 60335-1.
This standard supplements or modifies the corresponding clauses of IEC 60335-1, thereby converting it into this standard: Safety requirements for projectors and similar apparatus.
The clauses of IEC 60335-1 not mentioned in this standard may be used as long as it is reasonable. The places marked with "addition", "modification" or "replacement" in this standard are the corresponding modifications of the relevant clauses of IEC 60335-1.
1 This standard uses the following typographical style:
Requirements: regular font;
Test specifications: italic font;
Small regular font.
The typographical style used in the text is defined in Chapter 2. When the definition of IEC G0335-1 involves adjectives, the adjectives and the corresponding nouns are also in boldface. 2 The clauses and clauses added to IEC 60335-1 shall be numbered starting from 101. The following differences exist in some countries:
2.2.9 Operating hours are different (USA).
11.8 Added content is less applicable (USA), -19.1 Perform the test of 19.9 (USA). 19.7 Test is different (USA).
-21.101 Test is different (USA).
National Standard of the People's Republic of China
Safety of housebold and similar electrical appliances
Particular requirements for projectors and similar appliances1Scope
This chapter in GB 4706.1—1998 is replaced by the following content. GB 4706.43—1999
idt 1EC 60335-2-56:1997
This standard applies to the safety of projectors and similar appliances for household and similar purposes with a rated voltage not exceeding 250 V. Note 1. Examples of appliances included in the standard are as follows: slide projector (projection slide projector): cavity film camera, top projector, reflection projector, dual-purpose projector (anti-reflection dual-purpose projection); microprojector: effect projector: film viewer (static observer) film viewer! Movie projector: picture copy machine (picture duplicator), picture enlarger, slide projector. The projector can be equipped with a sound amplifier. Appliances that are not for home use but may be dangerous to the public, such as those used by non-professionals in schools, offices, shops and similar places, are also included in this standard.
From practical considerations, this standard covers common hazards caused by appliances that are encountered by all persons in and around the room. This standard does not usually take into account:
Use of appliances by unsupervised children or infirm persons: - Children use the appliance as a toy.
2 Please note the following situations:
Appliances used in vehicles, ships or aircraft require additional requirements: - Appliances used in tropical areas require special requirements; - Many national government health and labor protection departments have additional regulations; Use the applicable provisions of 1EC6D598-1 as much as possible. 3 This standard does not apply to:
Office equipment (IEC 60950 Safety of information technology equipment and electronic business equipment) State Administration of Quality and Technical Supervision 1999-11-11 Approved 2000-05-01 Implementation
GB 4706. 43-1999
- Film projectors with a film width exceeding 16 m
- Equipment used in special locations, such as equipment exposed to corrosive or explosive environments (dust, steam or gasoline)
- [.CD and video projectors (IEC60065). 2 Definitions
This chapter in GB4706.1--1998 is applicable except for the following. 2.2.9 Replacement:
Normal operation:
The device works in the following states and the brightness of the lamp is adjusted to maximum: a manual slide projector works when slides are loaded; a semi-automatic slide projector works when slide folders are inserted, and the film changing device operates once every 10 seconds; a fully automatic slide projector works when slide folders are inserted, and the film changing device is set at the most unfavorable speed by the controller. If necessary, the slides are reloaded at the fastest speed. 1 A manual film projector works when slides are loaded, the semi-automatic film projector works using the maximum length of film that can be accommodated, and the picture changing device operates once every 10 seconds; a fully automatic film projector works using the maximum length of film that can be accommodated, and the picture changing device is set by the controller to the most unfavorable viewing situation! If necessary, reload the film as quickly as possible; reflective projectors, dual-purpose projectors, top projectors, microprojectors, effect projectors and film scalers work in the same way as manual slide projectors, and reflective projectors work using neutral gray cards, which should be large enough to completely cover the reflective area; Note: Neutral gray cards are made of cardboard with a thickness of 2mm, with a reflectivity of 18% on the gray side and 90% on the white side. - Movie projectors and film viewers work in cycles using the maximum permissible film length, projecting the film in each cycle and then rewinding the film. The fan cannot be turned off manually;
- Picture enlargers (film should be loaded) and picture copy machines should work in cycles, with each cycle working for 1 minute and a break time of 1 minute:
Slide selectors work in the same way as manual slide projectors, and the operation of audio amplifiers complies with the provisions of 4.2.6 of IEC60065. The lens pitch motor is manually started, and the pitch adjustment time should be sufficient to move the lens or similar device from one end to the other. Manual projectors do this every 4 minutes, and other projectors do this after 18 frames have been projected. 2.101 Slide projector
A slide projector that projects slides in a stationary manner.
2.102 Manually-operated slide projectorA slide projector that changes slides manually.
2.1D3 Semi-automatic slide projectorA slide projector that changes slides automatically, each operation is controlled by the operator. 2.104 Fully-automatic slide projectorA slide projector that changes slides automatically, each operation is controlled by a timer, tape recorder or other automatic device. 2.105 Ovcrhead projectorAn apparatus used for the stationary projection of large transparent films. 2.106 Opaque projectorAn apparatus used for the stationary projection of non-transparent films. 2.107 Opaque-transparency projectorA combination of a slide projector and an opaque projector. GB4706.43—1999
2.10a MicroprojectormicroscopeprajectorAn apparatus for projecting microscopic slides.
2.109 EffectsprojectorAn apparatus for producing optical effects.
Note: Optical effects are produced by circulating projection film, projecting rotating discs or other means. 2.110 Still viewer
An apparatus for directly observing slides or film images. 2.111 Film viewerfilmviewerAn apparatus with a window for observing film. In the past, film viewers may have recording or playback equipment. 2.112 Motion picture projectorAn apparatus for projecting film.
2.113 Photo-reproduction applianceAn apparatus for reproducing and copying drawings, transparent films, prints and other physical objects. 2.114 Photographic enlarger Appliance for enlarging pictures.
2.115 Film-strip projector Appliance for projecting each frame of a film or a loop of film continuously or randomly. 2.116 Manually-operated film-strip projector Manually-operated film-strip projector Film-strip projector that selects each frame of the film. 2.117 Semi-automatic film-strip projector Automatically selects each frame of the film after being manually started. 2.118 Fully-automatic film-strip projector Automatically selects each frame of the film after being started by a timer, tape recorder or other automatic device. 2.119 Slide-sorting appliance Appliance with lighting from the back and manual selection of slides 3 General requirements
This clause in GB 4706.1-1998 applies. 4 General conditions for testing
This clause of GB 4706.1-1998 is applicable except for the following. 4.101 The appliance shall be tested as an electric appliance. 5 Blank
6 Classification
This clause of GB 4706.1-1998 is applicable. 7 Marking and instructions
This clause of GB 4706.1-1998 is applicable except for the following. 7.1 Addition:
The input power of the replaceable projection lamp shall be marked on or near the lamp holder of the appliance as follows:\ Lamp
The rated voltage of the lamp shall also be marked.
7.6 Added:
GB 4706. 43—1999
·Bulbs (Symbol 5012 of IEC60417)\7.12 Added:
The instructions for use shall include the rated voltage, rated input power and reference type and model of replaceable bulbs. The specific contents are as follows: The ventilation holes shall not be affected during operation:
The power shall be turned off before replacing the bulb;
The appliance shall be cooled before replacing the bulb or optical system components. 7.15 Added,
The marking for replacing the bulb shall be clearly visible.
B Protection against touching live parts
This chapter in GB4706.1—1998 is applicable. 9 Starting of electric appliances
This chapter in GB4706.1—1998 is not applicable. 10 Input power and current
This clause in GB 4706.1-1998 is applicable. 11 Heat
This clause in GB 4706.1-1998 is applicable except for the following. 11.2 Replacement:
The appliance shall be operated until a steady state is established.
11.8 Add the following to Table 3:
External ventilation grid:
Insulating material
-Metal
Neutral temperature card
Lens of projectorbzxZ.net
1) When measuring the temperature rise, use the white side of the card and place the grey side towards the lamp. 2) The temperature rise shall not exceed 100 K within 3 min after the lamp is turned off. 12 Vacuum
13 Leakage current and electric strength at operating temperatureThis clause in GB 1706.1-1998 is applicable except for the following. 13.3 Addition:
Translator, K
GB 4706.43—1999
When the working voltage (U) exceeds 250 V, the following voltages apply: -1 000 V increases to 1.2 U +700 V2 750 V increases to 1.2 U +2 450 V3 750 V increases to 2.4 U +3 150 V. 14 Blank
15 Moisture resistance
This chapter in GB4706.1—1998 is applicable. 16 Leakage current and electric strength
This chapter in GB 4706.1—1998 is applicable except for the following contents. 16.3 Addition:
When the operating voltage (U) exceeds 250V, the following test voltages apply: -1 000 V increases to 1.2 U+700 V; -2 750 V increases to 1.2 +2 450 V; 3 750 V increases to 2.4 U+3 150 V. 17 Overload protection of transformers and related circuits This chapter in GB4706.1-1998 is applicable except for the following contents. Note: Halogen tungsten lamps and lamps without filaments may not cause short circuits. 18 Durability
CB4706.This clause in GB 4706.1-1998 is not applicable. 19 Abnormal operation
This clause in GB 4706.1-1998 is applicable except for the following contents. 19.1 Modification:
For different appliances, the following contents are replaced: Compliance is determined by the tests in 19.7, 19.10 to 19.12 and 19.101. 19.7 Added:
The following appliances are operated for 5 min:
Manual slide projector;
Semi-automatic slide projector;
Overhead projector;
Reflection projector;
Micro projector;
-film viewer;
-film viewer;
Picture copy machine (picture duplicator)
Picture enlarger,
Manual film projector;
-Semi-automatic film projector
Slide selector.
GB 4706. 43—1999
19.101 The appliance is powered at rated voltage and operates normally. Each time a fault condition that may occur in normal use is applied. During the test, the temperature rise of the winding shall not exceed the value in Table 6. Notes
1 Example of fault conditions:
Fan skin joint is broken. Even if the lamp is broken, the test should be continued until the stable state is reached; the ventilation holes on the same side can be covered at the same time. 2 Band test is limited to the situation where unfavorable quality results may occur. 20 Stability and mechanical hazards
This chapter in GB4706.1-1998 is applicable except for the following contents. 20.1 Addition:
Film loaded in movie projectors should reach the maximum length and can be rolled onto the most unsuitable film reel. Slide projectors are loaded with slides.
21 Mechanical strength
This chapter in GB 4706.1-1998 is applicable except for the following contents. Addition:
In normal use, hand-held controllers should be subject to the additional test of 21.101. 21.101 The test of remote control is carried out in accordance with the provisions of procedure 2 of IEC 60068-2-32. The flexible cord is cut at 10 cm. The number of drops is: 100 for a mass not exceeding 250 g; 50 for a mass exceeding 250 g. After the test, the degree of damage to the remote control shall not affect its compliance with this standard. Notes 1 After the test, the remote control is no longer in use. 2 This test is not carried out for remote controls operating at safety extra-low voltage. 22 Structure This clause of GB 4706.1-1998 is applicable except for the following. 22.101 The construction of appliances with halogen lamps and high-pressure discharge lamps shall be such that if the lamp breaks, glass fragments cannot fly out of the appliance. 23 Internal wiring This clause of GB 4706.1-1998 is applicable. 24 Components
This chapter in GB4706.1-1998 is applicable except for the following contents. 24.1.1 Added,
The connector of the fully automatic projector shall comply with IEC60574-18. 24.2 Modified:
The length of the flexible cord connecting the switch and the appliance shall not exceed 50cm. 25 Power supply connection and external flexible cord
This chapter in GB 4706.1-1998 is applicable except for the following contents. 25.23 Added:
GB 4706.43-1999
Not applicable to internal connecting cords working at safety extra-low voltage. 6 External conductors are connected to the terminals of
GB 4706.1-1998. This chapter is applicable. 27 Grounding measures
GB 4706.1-1998. This chapter is applicable. 28 Screws and connections
GB 4706.1-1998. This chapter is applicable. 29 Creepage distances, electrical spaces and through-shrinkage distances This chapter of GB4706.1-1998 is applicable except for the following contents. 29.1 Added,
The creepage distances and electrical spaces between live parts at different potentials and between live parts and accessible metal parts in circuits exceeding 480V (peak value 680V) shall not be less than the values ​​shown in Table 101. Table 101
Working voltage U (peak), V
680U800
800U≤1 000
1 000
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.