GB 4706.9-1986 Special requirements for the safety of electric shavers, hair clippers and similar appliances for household and similar purposes GB4706.9-1986 Standard download and decompression password: www.bzxz.net

National Standards of the People's Republic of China
Safety of household and similar electrical appliances
Safety of household and similar electrical appliancesParticular requirements for electric shavers, hair clippers and similar appliancesUDC621 .3:614.8
:64
GB4706.9-86
This standard applies to electric shavers, electric clippers and similar appliances in the safety of household and similar electrical appliances. For special requirements, it refers to IEC335-2-8 (1981) "Safety of Household and Similar Electrical Appliances Part 2: Special Requirements for Electric Shavers, Hair Clippers and Similar Appliances". This standard should be used in conjunction with GB4706.1-84 "General safety requirements for household and similar electrical appliances". The parts of this standard that say "applicable" mean that the corresponding clauses, clauses and clauses in GB4706.1-84 are applicable to this standard; the parts of this standard that say "replace" should be replaced by the provisions of this standard. shall prevail; the part marked "added" in this standard means that in addition to complying with the corresponding provisions of GB4706.1-84, it must also comply with the additional provisions in this standard. 1Scope
Except for the following content, this chapter in GB4706.1-84 applies. 1.1 This article is replaced by the following:
This standard applies to household electric shavers, electric hair clippers and similar appliances. Note: ① Appliances similar to electric shavers and electric hair clippers include those using electric motors and with attachments for massaging, trimming nails (toes) and similar purposes.
② Appliances that are not intended for general household use but are still dangerous to the public, such as those used by people unfamiliar with electrical appliances in shops, farms, etc., also fall within the scope of this standard. These appliances include those used by hairdressers and clippers used for trimming animals. ③Multi-purpose appliances are included in the scope of this standard. When they are used with special accessories, they should comply with the corresponding relevant standards. ④ This standard does not take into account the special risks that exist in nurseries and other places where the elderly, young, sick and disabled are left unattended. In this case, additional requirements are needed.
③ This standard does not apply to:
Appliances designed for industrial use:
Appliances placed in special environments, such as the presence of corrosive and explosive gases (dust, steam , combustible gas), - a battery-operated electric shaver;
a massage appliance;
a medical appliance.
③ Appliances for use on vehicles, ships and aircraft need to have additional requirements. Appliances intended for use in tropical areas require special requirements. ③Additional requirements stipulated by the national health department and labor protection department should also be considered. 2 Terminology
Except for the following content, this chapter in GB4706.1-84 applies. 2.2.30 This paragraph is replaced by the following;
Normal load means that when the instrument is held by a suitable torsion fixture, its main shaft and the cutting end or the main shaft of the accessory are placed on a horizontal plane, and the National Bureau of Standards 1986 -03-27 Release
1986-10-01 Implementation
GB4706.9-86
Obtained when operating in still air without load (except for loads that may be imposed by accessories) load. Note: The torsion clamp is of lightweight construction and should be positioned so that the effect of heat conduction from the appliance is so small as to be negligible. 3 General requirements
This chapter in GB4706.1-84 applies.
4 General instructions in testing
Except for the following content, this chapter in GB4706.1-84 applies. 4.2 The following content is added to this article:
Note: If the test in Chapter 18 must be redone, an additional sample needs to be added. Articles 4.8, 4.10 and 4.12 are not applicable. The following clauses are added to this chapter:
4.101 Before and during the test, lubricate the cutting end with a few drops of clear oil. Note: Light oils are used to mimic the lubrication provided by skin or hair under normal use. 5 Ratings
This chapter in GB4706.1-84 is replaced by the following content. The rated voltage of single-phase AC appliances is 220V. Compliance is determined by inspecting the mark.
6 Classification
Except for the following content, this chapter in GB4706.1-84 applies. Note: See item 22.1.
7 mark
Except for the following content, this chapter in GB4706.1-84 applies. 7.1 "In addition, all power supplies must be disconnected" and "Note ①" after item k. of this article do not apply. 7.3 This article does not apply.
7.4 Paragraph 2 of this article does not apply.
Replace paragraph 3 of this article with the following:
If the appliance can be adjusted to different rated voltage ranges, the voltage setting position may be a single value for each voltage range. to indicate, but the voltage range should be clearly given in the manufacturer's instructions. 7.5 Paragraph 2 of this Article does not apply.
7.8 This article does not apply.
7.12 This article is replaced by the following:
If it is necessary to take special precautions when using this appliance, the relevant details should be given in the product manual accompanying the appliance. 7.14 Paragraphs 3, 4, 5 and 6 of this article do not apply. 8 Protection against electric shock
Except for the following content, this chapter in GB4706.1-84 applies. 8.4 This clause does not apply.
9 Start-up of electric appliances
This chapter in GB4706.1-84 applies.
10 Input power and current
GB4706.9-86
Except for the following content, this chapter in GB4706.1-84 applies. 10.3 This article does not apply.
11 Fever
Except for the following content, this chapter in GB4706.1-84 applies. Articles 11.2, 11.4 and 11.6 do not apply. 11.7 This article is replaced by the following:
Appliances intended for home use only should work continuously for 10 minutes. Electric clippers used for trimming animals should be operated continuously until a steady state is established. Other appliances should work for 10 minutes and then stop for 10 minutes. This working cycle is repeated until a stable state is established. 11.8 Add the following content after this table: Note: During normal use, the temperature rise of the part in contact with the skin or hair, or held in the hand, should not exceed the limit specified for the handle that is continuously held during normal use. . The determination of temperature rise in such areas applies to all accessories used with the appliance. 11.9 This clause does not apply.
12 This chapter in GB4706.1-84 does not apply to electrical appliances with electric heating elements operating under overload conditions. 13 Electrical insulation and leakage current at operating temperature Except for the following content, this chapter in GB4706.1-84 applies. 13.1 This article, except paragraph -, is replaced by the following: Compliance is determined by the test specified in Article 13.2, when the appliance is operated under normal load and at a power supply voltage equal to 1.06 times the rated voltage.
13.2.3 In this paragraph, "portable Class I electric appliances...0.75mA...other fixed Class I electric heating appliances...are 5mA.\Not applicable.
13.3 This clause does not Applicable.
14 Suppression of radio interference and television interference This chapter in GB4706.1-84 applies
15 Waterproofing
Except for the following content, this chapter in GB4706.1-84 applies. This chapter is applicable. 15.3 This article is not applicable.
16 Except for the following content, this chapter in GB4706.1-84 is applicable. …The above test is performed when the tested sample is in a cold state” is replaced by the following: Compliance shall be determined through the tests of 16.3 and 16.4. This test is conducted when the appliance is in a cold state. 16.2 This article does not apply.
17 Overload protection
This chapter in GB4706.1-84 is not applicable
18 Durability
GB4706.9-86
Removed. In addition to the above content, this chapter in GB4706.1-84 applies. 18.1 The last paragraph of this article does not apply.
18.2 This article is replaced by the following:
Appliances for household use only. Work under normal load and withstand 100 working cycles when the supply voltage is equal to 1.1 times the rated voltage, and then when the supply voltage is equal to 0.Withstand another 100 working cycles at 90 times the rated voltage. Each working cycle includes 10 minutes of working and 50 minutes of stopping.
Other appliances are operated for 48 hours under normal load and at a voltage equal to 1.10 times the rated voltage. For the tests in Chapters 11 and 13, the operating time must be reduced, and then the appliances are placed under normal load and operated for 48 hours at a voltage equal to 0.90 times the rated voltage. This work can be performed continuously or intermittently. The intervals are several cycles with the same working and stopping time, and the time of each cycle is not less than 8 hours. Note: The specified working hours are actual operating hours. 18.3 In this article, all "short-time working electrical appliances" are changed to "appliances for household use only", and the rest are applicable. 18.6 In the second paragraph of this article, "but the insulation resistance value at this time is allowed to be reduced to 50% of the specified value" is replaced with the following: but the insulation resistance value at this time is allowed to be reduced to 50% of the specified value. Except for Class III appliances, the test voltage values ??used in the electrical strength test of appliances are as follows:
- basic insulation is 1000V;
supplementary insulation is 2750V,
when 1000V is used When testing the voltage, the capacitor does not open circuit. 19 Abnormal operation
Except for the following content, this chapter in GB4706.184 applies. 19.1 In this article, from the second paragraph onwards, "for electrical appliances with electric heating elements to the ninth paragraph... and working at the same time under the input power" is replaced by the following content:
Whether it is qualified, it passes 19.6 and 19.10 of this standard Clause 19.101 and Supplementary Clause 19.101 are determined by appropriate testing. The four items 19.2~19.5 are not applicable.
19.6 In this article, from the first paragraph to "Each test, the appliance should be started from a cold state and work for one cycle at the rated voltage, and the cycle time is as follows" with the following content: Motors with locked rotor torque less than full load torque and appliances with hand-started motors should be started from a cold state. Close the switch, block the moving parts, and run the motor for one cycle when the power supply voltage is equal to the rated voltage or equal to the upper limit of the rated voltage range.
If the capacitor carried by the motor in the circuit with the auxiliary winding does not comply with the relevant standards, the capacitor shall be tested with a short circuit or an open circuit, whichever is more disadvantageous. If there are two or more capacitors, these capacitors shall be tested for short circuit or open circuit one by one. Add the following after the paragraph "For other electrical appliances, the maximum time." Note: If the appliance has more than one motor, each motor shall be tested separately. Supplementary tests for protected motor devices are given in Appendix D. The three items 19.7 to 19.9 are not applicable.
19.10 In this article, "Appliances equipped with series motors. Run for 1 minute" are replaced with the following: Appliances with series motors are installed according to normal load conditions and when the voltage is equal to 1.30 times the rated voltage. and operations. Any removable parts that may affect the load should be removed. 19.11 The first paragraph and the table in this article are replaced by the following: When conducting the tests of 19.6, 19.10 and Supplementary Clause 19.101 of this standard, the appliance shall not release molten metal, and the outer casing shall not be deformed to the extent that it impairs compliance with this standard. Require. And the temperature rise of any part of the enclosure that may come into contact with flammable materials shall not exceed 150°C (150K).
The following clauses are added to this chapter:www.bzxz.net
GB4706.9-86
19.101 Hand-held appliances placed on cork boards in the most unfavorable position, at rated voltage or rated voltage range The upper limit is worked until a steady state is established.
Stability and mechanical hazards
20
Except for the following content, this chapter in GB4706.1-84 applies. 20.1 This clause does not apply.
21
Mechanical strength
Except for the following content, this chapter in GB4706.1-84 applies. 21.1 In the thirteenth paragraph of this article, "The sample should be firmly supported, and each weak part of the shell should be impacted three times." Replace with the following:
The entire sample is rigidly supported, and Conduct three impact tests on each point of the enclosure. The impact test with an impact energy of 0.5 Nm is only applicable to those parts that may impact the ground if the appliance is dropped. The triple impact test is also applicable to all other parts except the cutting end. However, the compression amount of the hammerhead spring is adjusted to about 17mm, and the product of the compression amount in millimeters and the Newton number of the spring tension should be equal to 700. Through such adjustment, the impact energy is 0.35±0.05Nm. This article adds the following content:
Note: The impact test is not applicable to the cutting end. The three items 21.2~21.4 are not applicable.
22 structure
Except for the following content, this chapter in GB4706.1-84 applies. 22.1 "Electrical appliances should have an appropriate level of protection against electric shock" is replaced by the following: The appliance should be Class II or Class III.
22.4 The following content is added to this article:
Electric shavers and electric hair clippers should be designed to prevent the leakage of cutting materials into places that may cause electrical or mechanical failure. The eight articles 22.11, 22.17, 22.24, 22.26~22.29 and 22.31 are not applicable. 23 Internal wiring
Except for the following content, this chapter in GB4706.1-84 applies. 23.7 This clause does not apply.
24 components
Except for the following content, this chapter in GB4706.1-84 applies. 24.1 The following content is added to this article:
Note: The switch used in this appliance is not required to be a frequently operated switch. 24.3 This clause does not apply.
24.9 This article is replaced by the following:
Electric hair clippers used for trimming animals should be equipped with a switch on the power circuit. 25 Power supply connection and external flexible cables and cords
Except for the following content, this chapter in GB4706.1-84 applies. 25.1 This article is replaced by the following:
GB.4706.9-86
Appliances should be equipped with power leads, or except electric clippers for animal hair trimming, all other appliances should be equipped with An appliance leads the population. There shall be no more than one connection device between the appliance and the power source. Whether it is qualified or not can pass the following inspection.
Note: According to the relevant "Appliance Couplers for Household and Similar General Purposes" standard, devices with flat double-stranded metal cords are only suitable for appliances with miniature appliance sockets.
25.2 In this article, from the first paragraph "intended to be permanently connected" to the end of the table "...reduced to a value lower than that specified in Article 29.1." does not apply.
In the remaining part of this article, "Drip-proof electrical appliances, splash-proof electrical appliances and submersible electrical appliances shall not be equipped with electrical wiring devices" are replaced with the following:
Drip-proof, splash-proof electrical appliances Type and watertight appliances and electric clippers generally used for trimming animals. There should be no appliance lead entry. 25.3 This article adds the following content;
Except those appliance sockets for domestic use only, the rated current of all other appliance sockets is at least 1A. Unless the appliance is provided with a cord assembly for use with a flat twin cord, in which case the appliance shall be provided with a micro appliance socket-outlet. 25.4 Item d. in this article is replaced with the following: Z connection.
25.6 In paragraph 4 of this article from the beginning to item b., "the power supply cord shall not be lighter than that used on the grounding junction of... (if any)" is replaced with the following: ||tt ||The power cord shall not be lighter than:
Appliances for household use only:
a.
If it is rubber insulated, it shall be a universal rubber sheathed cord (see GB1169-74 "General Rubber sheathed flexible cable"); if it is PVC insulated, it is a flat double-stranded metal flexible wire (see relevant standards). b. Electric clippers for animal hair trimming:
Universal neoprene sheathed flexible cable (see relevant standards). c. For other appliances:
If it is rubber insulated, it is a universal rubber sheathed cord (see GB1169-74). If it is an ordinary polyvinyl chloride insulated cord (see relevant standards). In front of this table, "the nominal cross-sectional area of ??the power supply cord shall not be less than the values ??listed in the following table" is replaced by the following: In addition to the flat double-stranded metal flexible cord, the power supply cord shall have a diameter not less than the value listed in the following table. Nominal cross-sectional area listed. The note after this table is replaced by the following: Note: For appliances with a rated current not exceeding 3A, the allowable nominal cross-sectional area is 0.5mm. The length of the power cord measured from the point where the cord or cord protective sleeve is connected to the appliance to the plug insertion end shall not exceed 2m. Add the following content after this note:
The power cord should be at least 1.7m long. If the appliance has a cord device with a flat double-stranded metal cord, the length of the cord should not exceed 2m.
Note: Cord length is measured from the point where the cord or cord protective sleeve enters the appliance or connector to the point where the plug is received. 25.11 The flexible cord fixing device connecting M and Y in this article should be designed so that: item d. in this paragraph "the cord is not knotted" is replaced with the following:
One M connection, cord No knots allowed.
Note: Y connection, when fixed as a cord, the power cord is allowed to have a knot. Articles 25.13 to 25.14 are not applicable.
Terminal posts for 26 outer conductors
This chapter in GB4706.1-84 applies.
27 Grounding device
GB4706.9-86
Except for the following content, this chapter in GB 4706.1-84 applies. 27.1 This article is replaced by the following:
Such appliances shall not have a grounding device.
Whether qualified shall be determined by inspection.
The four items 27.2~27.5 are not applicable.
28
Screws and joints
Except for the following content, this chapter in GB4706.1-84 applies. 28.1. The second paragraph of this article is replaced by the following: Screws with a nominal diameter less than 3 mm that are likely to be tightened by the user and screws that transmit contact pressure must be inserted into metal parts, unless such screws are used for installation. Except for the cover and it does not need to be removed when replacing the power cord. 29. Except for the following content regarding creepage distances, electrical clearances and through-insulation distances, this chapter in GB4706.1-84 applies. 29.3 This clause does not apply.
30 Heat resistance, flame resistance and tracking resistance
This chapter in GB4706.1-84 applies.
31 Anti-rust
This chapter in GB4706.1-84 applies.
32 Radiation, toxicity and similar hazards
This chapter in GB4706.1-84 applies.
GB4706.9-86
Appendix A
The use of the appendix in GB4706.1-84 "General Safety Requirements for Household and Similar Electrical Appliances" in this standard (Supplement Parts)
A.Appendix A "Thermal Controller and Overload Circuit Breaker" in 1GB4706.1-84 applies. A.Appendix B "Electronic Circuits" in 2GB4706.1-84 applies. A.Appendix C "Structure of Safety Isolation Transformer" in 3GB4706,1-84 applies. A. Appendix D "Additional Requirements for Protected Motor Devices" in 4GB4706.1-84 applies. A.Appendix E "Measurement of Creepage Distances and Clearances" in 5GB4706.1-84 applies. A. Appendix F "Horizontal Combustion Test Method" in 6GB4706.1-84 applies. A.Appendix G "Glow Wire Test Method" in 7GB4706.1-84 applies. A.Appendix H "Bad Contact Test" in 8GB4706.1-84 applies. A. Appendix I "Needle Flame Test Method" in 9GB4706.1-84 applies. A. The appendix "Current Tracking Test Method" in 10GB4706.1-84 applies. A.11 Appendix K "Leakage Current Measurement Circuit" in GB 4706.1-84 applies. Additional notes:
This standard is proposed and centralized by the Electrical Technical Subcommittee of the National Electrical Safety Standardization Technical Committee. This standard is drafted by the Third Working Group of the "Special Safety Requirements for Household Appliances" Standard Development Working Group. The main drafters of this standard are Yu Guoping, Xu Yanrong, Mu Hairong and Cui Lijun.
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