GB 4706.15-1996 Special requirements for safe skin and hair care appliances for household and similar electrical appliances
Some standard content:
National Standard of the People's Republic of China
Safety of household and similar electrical appliances
Safety of household and similar electrical appliancesParticular requirements for appliances for skin or hair careGB4706.15-1996| | tt | "Special Requirements for Safe Skin and Hair Care Apparatus" and its 1st Supplement (1990). This standard should be used in conjunction with GB4706.1-92 "General safety requirements for household and similar electrical appliances".
The part of this standard that says "applicable" means that the corresponding provisions in GB4706.1 are applicable to this standard; the part of this standard that says "replace" or "modify" should be based on this standard The provisions in shall prevail; the part marked "added" in this standard means that in addition to complying with the corresponding provisions of GB4706.1, it must also comply with the added provisions in this standard. 1Scope
This Chapter 1 in GB4706.1 is applicable except for the following content. 1.1 This article is replaced by the following:
This standard applies to electrical appliances intended for personal or animal skin or hair care and containing electric heating elements. It also applies to electric heaters with non-electric devices used for skin or hair care. Appliances with steam generating devices or spray devices shall fall within the scope of this standard. Examples of appliances for skin or hair care are: hair dryers;
hand dryers;
hair stylers;
a curling iron;
electric combs :
—Facial saunas and similar appliances.
Electrical appliances that are not used as general household appliances but are still dangerous when used in public places also fall within the scope of this standard. For example, electrical appliances used by people who are unfamiliar with electricity in shops, light industries, and farms, such as hairdressers. This standard does not take into account some special hazards that exist in places where human beings live, such as nurseries and unattended old, young, mentally ill, and disabled people. In such situations, In some cases additional requirements may apply.
This standard does not apply to:
Electrical appliances designed for industrial use
Used under special corrosive and explosive conditions (such as dust, steam or flammable gases) Electrical appliances. - Shavers, hair clippers and similar appliances, which are specified in separate standards. Medical Appliances
Additional requirements are required for appliances intended for use on vehicles, ships and aircraft. For appliances intended for use in tropical areas, special requirements may be required National Technical Supervision Bureau 1996-03-31 Published 1997-01-01 Implementation
GB4706.15—1996
Note: Many countries' Health authorities and national labor protection departments have stipulated many additional requirements. 2 Terminology
This chapter in GB4706.1 applies except for the following. 2.2.29 This article is replaced by the following:
The sufficient heat release condition refers to the electrical appliance operating under the following conditions: helmet-type hair dryer. During the test, the central axis of the helmet must be tilted at an angle of 60 degrees to the horizontal line. Unless the helmet is not designed to achieve this angle. In this case, the helmet can be as close to this angle as the design structure allows. Put a wooden ball with a diameter of 200mm into the helmet. Its center line coincides with the central axis of the helmet. The minimum distance between the ball surface and the protective grid should be 5cm. Hair dryers with non-rigid hood attachments that work together with a metal guard mounted on a wooden ball 200 mm in diameter. The protective device is composed of 32 metal wires with a diameter of 1.4mm. The metal wires are bent into an arc shape and maintained at equal spacing, see Figure 101. For the tests of Chapter 11, helmet-type hair dryers or hair dryers with non-rigid hood attachments are operated with or without a ball, whichever is the most severe condition. Hood attachments should not overlap. A handheld hair dryer without a hood attachment that operates with the airflow blowing downward. The air flow is unrestricted and if the hair dryer has a removable nozzle, it should be installed so that the nozzle is in the most unfavorable position. Operate the handheld device in its normal position. Curling iron, placed in still air.
Electric heaters with non-electrical devices are operated in accordance with the manufacturer's instructions with the non-electrical device in its normal position for use. Hair curlers, electric heating combs and similar appliances are operated with their main shafts in still air. in the horizontal plane. Appliances with steam or spray devices are operated with their containers empty or filled with water, whichever is the most severe condition. Unless there is a mark on the appliance stating that the container should be filled with water when the appliance is in use, in which case the container should be filled with water when the appliance is in operation. If necessary, add water to compensate for its evaporation.
The facial sauna is operated with full water according to the manufacturer's instructions. In order to maintain steam output, water can be replenished when necessary. If a small stand is provided with the machine, the appliance shall be operated on the small stand, unless otherwise specified for a particular test. Helmet-type hair dryers designed for operation with only the head as support shall be followed and with a non-rigid cover. The same regulations apply to the cap attachment of the hair dryer.
The following clauses are added to this chapter:
2.2.101 Non-rigid hood attachment hood attachment A soft attachment of a hair iron that can be put on the hair. 2.2.102 Helmet-type hair-dryer Helmet-type hair-dryer A helmet-type hair dryer with a sturdy rigid structure, with the user's head inside the open opening. Helmet-style hair dryers can be floor-standing or mounted on a wall or similar surface. 2.2.103 Electric heaters with non-electric devices electricheaterfor non-electric devices are used to heat non-electric devices, such as electric heaters with curling iron hairpins. 2.2.104 Curler
Parts of an electric curling iron or hair styling device that are in contact with the hair, excluding the handle of the curling iron. 2.2.105 Swivelinlet Swivelinlet is a device designed to connect the power cord to an electrical appliance. It contains an assembly so that the power cord will not become kinked when the appliance is continuously rotated.
A slip ring is an example of a rotary access component. 2.2.106 swivelcord
The power cord, swivel inlet, binding post, and wire protector are assembled together. It can have a non-rewirable plug. 3 General requirements
This chapter in GB4706.1 shall apply.
4 General instructions in testing
This chapter in GB4706.1 is applicable.
5 Rating
This chapter in GB4706.1 is applicable.
6 categories
This chapter in GB4706.1 is applicable.
7 mark
GB4706.15—1996
This chapter in GB4706.1 is applicable except for the following content. 7.1 This article adds the following content:
Hair dryers must be marked with the symbol of a drip-proof or splash-proof structure. Heating combs and hair stylers must be marked with a splash-proof construction symbol. 7.12 This article adds the following content:
The instructions provided with portable hair dryers or curling irons and similar appliances should contain the following warning: Do not use dry hair near baths, tubs or other containers containing water. device. Curling irons with swivel cords should be shipped with an instruction manual giving the following warning: Curling irons with swivel cords must be available. When the power cord is damaged, it must be replaced with the same type of cord and must be replaced by specialized personnel. Make a replacement. It should also indicate where such power cords can be obtained. Fixed hair dryers designated for use in bathrooms should have the following warning in the instructions: This hair dryer must be fixed away from each bather. 8 Protection against electric shock
This chapter in GB4706.1 is applicable except for the following content. 8.1 This article is modified as follows:
Use standard test fingers instead of test needles to test visible glowing electric heating elements and supports. 8.2 This article adds the following content:
The nozzle of the hair dryer and the interior of the helmet and hood accessories are considered to be parts that come into contact with the skin and hair of humans and animals during normal use.
9 Start-up of electric appliances
This chapter in GB4706.1 is applicable.
10 Input power and current
This chapter in GB4706.1 is applicable except for the following content. 10.1 This article amends the following content:
The text in front of the table is replaced by the following content: For electrical appliances at rated voltage and normal operating temperature, the deviation between the input power and the rated input power should not be greater than that shown in the following table Deviation of electric heating appliances.
11 Fever
GB4706.15—1996
This chapter in GB4706.1 is applicable except for the following content. 11.1 The following content is added to this article:
For hair curlers with rotating wires, compliance is checked through the test of Article 11.101. 11.2 The following content is added to this article
Electrical appliances that can be used on a table or hung on a wall or similar surface should be placed on a table or fixed on the wall in the usual way for testing. The more severe working condition is chosen between the two. Except for handheld electrical appliances and the above-mentioned electrical appliances, all other electrical appliances should be placed according to the relevant regulations for electric heating appliances. 11.7 This article is replaced by the following:
Electrical appliances without timers can work:
Handheld electrical appliances, 30min;
one other electrical appliance, until steady state is established.
Appliances with timers can work intermittently until a steady state is established. Each time the timer must be adjusted to the maximum value that the timer can be adjusted to, and the period of time must be as short as possible. At the same time, the manufacturer's instructions should be considered. For electric heaters with non-electric devices with timers, The temperature rise of the handle of the electrical device is measured at the end of the first working cycle. Curlers are not considered handles.
This article adds the following clause:
11.101 A hair curling iron with a rotating wire should be placed so that its main axis is in a horizontal plane and the wire hangs vertically. The wire should be cut to a free length of approximately 50cm and the conductor at the end of the free end of the wire should be connected to a power terminal at the same level as the main shaft of the curling iron.
The wire should be loaded so that a force of 1N is exerted as much as possible on the place where the wire is inserted into the rotary wiring entrance. The hair curling iron should work at the rated voltage or the upper limit of the rated voltage range. The current by rotating the wire is adjusted to 1.25 times the rated current of the hair curling iron. The heating element is disconnected or short-circuited. Under these conditions, the curling iron rotates 1,500 times around its main axis at a rate of 50 revolutions per minute, and adjusts its direction (reverse) after every 20 revolutions.
During the test, the temperature rise of sliding contacts and similar parts should not exceed 65°C (65K), unless the materials used can withstand higher temperatures.
The current through the rotating wire can be adjusted by a resistor inserted into the circuit, and the temperature rise can be measured by appropriate means, such as a color change indicator. 12 This chapter in GB4706.1 shall apply to appliances with electric heating elements operating under overload conditions.
13 Electrical insulation and leakage current at operating temperature This chapter in GB4706.1 is applicable except for the following content. 13.1. This article is modified as follows:
The test method is modified to:
When the test voltage is 1.06 times the rated voltage of the appliance and it operates under sufficient heat dissipation conditions for the time specified in Article 11.7 , to determine whether it is qualified through the tests of Articles 13.2 and 13.3. 14 Suppression of radio and television interference
This chapter in GB4706.1 applies.
15 waterproof
GB4706.15-1996
This chapter in GB4706.1 is applicable except for the following content. 15.4 This article adds the following content:
Fixed hair dryers designated for use in bathrooms are placed in a humidity box for 168 hours. 16 Insulation resistance and electrical strength
This chapter in GB4706.1 is applicable.
17 Overload Protection
This chapter in GB4706.1 is applicable.
18 Durability
This chapter in GB4706.1 is applicable except for the following content. 18.1 This article adds the following content;
For hair curling irons with rotating wires, compliance is determined through the test of Article 18.101. For electric heating appliances, compliance can be determined through tests in other provisions of this standard. 18.2 This article is replaced by the following:
Under sufficient heat dissipation conditions, the switch of the electric heating element of the electrical appliance is in the on position and operates at a voltage equal to 1.1 times the rated voltage for 48 hours. The test should include 11, 12, and 13 The time taken during the test in Chapter 1, and then operated under the same working conditions but with a voltage equal to 0.9 times the rated voltage for at least 48 hours.
The test can be conducted continuously or in sections, with each period not less than 8 hours. This chapter adds the following clauses:
18.101 Hair curlers with rotating wires are tested under the conditions specified in 11.101. The number of rotations shall be 20,000. After completing this test, the rotating access port and rotating conductor shall not affect further future use and shall not show significant wear. Live parts shall not become accessible and the hair curler It should be able to withstand the electrical strength test specified in 16.4. 9 Abnormal operation
19
This chapter in GB4706.1 is applicable except for the following content. 19.1 The following content is added to this article:
During the test, the cover is either removed or put on, whichever is the more severe working condition. For hand-held hair dryers, whether they are qualified is determined through the test of Article 19.101 . An electric heater with a non-electrical device may be considered an appliance that is left unattended when in use. 19.2 This article amends the following content:
Replace the first paragraph of this article with the following content:
Electrical appliances with electric heating elements must be consistent with the conditions specified in Chapter 11 except for the following. Test below. - Power supply voltage: The input power of the electrical appliance should reach 0.85 times the rated input power; - Disconnect the motor or disconnect the motor switch: Place the hand-held hair generator in the most unfavorable position that may occur during normal use for testing. Corner base plate. A hair curling iron equipped with a steam or spray device and intended to be filled with water, whichever is more severe during operation.
Hair dryers with hood attachments should be tested with the motor running and the air flow path restricted to obtain the most adverse results.
Add the following content to this article:
GB4706.15-1996
Before starting the test, the heater of the hair roller should be gently placed on a flexible, soft, lightweight, thick On a 100mm glass fiber mat with a thermal conductivity of about 0.04W/k·m, the glass fiber does not contain dense particles and rough fibers. 19.5 Not applicable.
19.6 Add the following content to this article:
Disconnect the heating element or cut off the switch when conducting the test. Hair dryers and hand dryers are not considered appliances whose moving parts are liable to become jammed. 19.8 Not applicable.
19.10 The following content is added to this article:
When conducting this test, the electric heating element or cut-off switch must be disconnected. 19.11 The following content is added to this article:
If the shell of a hand dryer or hand-held hair dryer is supplementary insulation or reinforced insulation, its temperature rise is not limited. The following clauses are added to this chapter:
19.101 Hand-held hair dryers shall withstand the following tests. During the test, the electric heating element shall operate at the voltage specified in Article 11.4, the motor shall be powered by a separate power supply, and the Work under the operating voltage until a stable temperature condition is established. The motor speed can be achieved by reducing the power supply voltage until the temperature limiting device just operates. The reduction rate is: 1V/min for motors with an operating voltage not exceeding 30V. For motors with operating voltage exceeding 30V, 5V/min. The hair dryer then starts working until a steady state is established. During the test, the hair dryer shall not produce flames or melt metal, and its temperature rise shall not exceed the value specified in Article 19.11. 20 Stability and mechanical hazards
This chapter in GB4706.1 is applicable.
21 Mechanical strength
This chapter in GB4706.1 is applicable. Www.bzxZ.net
22 structure
This chapter in GB4706.1 is applicable except for the following content. twenty two.1 This article is replaced by the following:
Hair dryers other than helmet-type hair dryers shall be Class 1 or sub-class appliances. Class 1 hair curling irons with steam or spray devices must be held continuously by the hand. The remaining parts should be covered with insulating materials. Other appliances with steam generating or spraying devices that come into contact with human skin or hair during use should be Class I or Class appliances, with the exception of hair styling irons. Reel reels and similar devices with electric heating elements that are integrated with the shaft or device and capable of working together in use shall be Class II appliances with a rated voltage not exceeding 24 V and intended to be permanently connected to fixed wiring. Hair dryers may be Class I appliances. Other electrical appliances shall be Class I, Class I or Class I appliances. Compliance shall be determined by inspection and relevant tests. Examples of external metal parts used for calibration purposes are hair curlers. Components between clamped components. 22.2 This clause is replaced by the following:
Hand dryers shall be at least drip-proof appliances. Electric combs and hair styling appliances with curling rollers shall be splash-proof. Type of electrical appliances. GB4706.15—1996
Determine whether they are qualified through inspection and relevant tests. 22.19 This article adds the following content:
For Class I hair dryers and Class I hand dryers, The insulation between live parts and accessible metal parts at the air inlet and air outlet may consist of air only
22.23 This clause adds the following:
For use in Class I hair curlers. Components used for supplementary insulation and reinforced insulation shall be resistant to aging, and their structure and size shall not reduce the creepage distance below the value specified in 29.1
Replace the test method of this article with the following: Compliance is determined by inspection, measurement and the following tests. Parts not mentioned in the material table in 11.8 are subjected to aging in an atmosphere of the same composition and pressure as the indoor air, with the sample suspended freely in a heating box. So that the distance between any two samples and the distance between any sample and the top and bottom of the box is at least 10mm, and the distance between the sample and the wall is at least 50mm
The total space occupied by the sample does not exceed the effective volume of the box. One-tenth, the box can be ventilated by natural circulation not less than 3 times per hour. Before the sample is placed, the temperature of the air in the box should be equal to the temperature of the indoor air. The sample should be maintained at a temperature exceeding that of Chapter 19 during the test. The temperature rise is 30℃±1℃ (30K±1K), or kept at 70℃±1℃ for 10 days (240 h), whichever is higher
Then, the sample is taken out of the box directly. , placed at room temperature and away from direct sunlight for 16 hours. After the test, inspect the samples. The results should show that there are no visible cracks or slips in their exposed parts, and these samples should withstand the requirements for supplementary insulation specified in 16.4. Electrical strength test. This article adds the following:
It is recommended to use an electric heating box.
Natural circulation can be provided through a thermoelectric placed in the center of the space occupied by the sample. Occasionally measure its temperature. 22.26 This clause is replaced by the following:
Exposed electric heating elements must be supported in such a way that, even if the element is damaged, the heating conductor cannot come into contact with accessible metal parts or skin.
Compliance is determined by a test in which the heating conductor is cut off at the most unfavorable position. This test is conducted after the test in Chapter 29. The following clauses are added to this chapter
22.101 The structure of electrical appliances with steam devices or spray devices should be waterproof from accidental leakage, or be able to prevent sudden ejection of steam or water, ensuring that users are protected when using the appliance or turning on the switch. It will not cause danger. After working according to the manufacturer's instructions, check whether it is qualified. 23 Internal wiring
This chapter in GB4706.1 is applicable.
24 components
This chapter in GB4706.1 is applicable except for the following content. 24.1 The following content is added to this article:
Safety isolation transformers used for sub-category electrical appliances shall be Category 1 electrical appliances. The switch in the hand dryer or hairdresser and the timer switch in the hand dryer should be a switch that can work frequently. The timer switch in the hand dryer should be tested as a frequently working switch. For the normal operation test, its operation The number of cycles should be increased to 100,000.
GB4706.15-1996
The mechanical strength of switches contained in flexible cables or cords for helmet-type hair dryers and hair stylers may be checked by the following test. For a factory-supplied switch equipped with a flexible cord, strike it three times against a steel rod mounted on a brick, stone, concrete, or similar solid wall. The steel rod is a straight steel rod of 40mm×40mm×(5±0.1)mm with a square cross-section. (5±0.1)mm is the rounding radius of each edge of the steel rod.
Lift the switch with its flexible cable, and its suspension point is 40cm above the steel rod. Pull the switch away from the steel bar (perpendicular to the plane of the wall) until the cable or cord is in a horizontal position, then release. The switch needs to hit the rounded edge of the steel rod. After the test, the sample shall show no damage within the meaning of this standard. 24.2 Except for the first dash, which is replaced by the following content, the remaining content applies. - Except for helmet-type hair dryers and hair stylers, switches 5 power connections in flexible cables and cords and external flexible cables and cords
25
This chapter in GB4706.1 except Except for the content mentioned above, it is applicable. 25.1 This article adds the following content:
Rotating lead used only for electric hair curlers
25.2 Adds the following content:
Rotating lead used only for electric curling irons | |tt||Drip-proof, splash-proof and waterproof electrical appliances shall not be equipped with rotating inlets 25.3 This article adds the following content:
The rated current of the electrical inlets used for hairdressers shall be at least 6A. The rated current of other electrical appliance inlets should be at least 1A. 25.4 The following content is added to this article:
Z-type connection is only applicable to electric heating combs, curling irons and handheld hair dryers. 25.6 Except for the five dashes that are replaced by the following content, the rest of the content is applicable. Power cord It should not be lighter than ordinary rubber sheathed flexible cables (IEC24553\) or light PVC sheathed flexible cables (IEC22752\). The power cord used for hair salons should not be lighter than ordinary PVC sheathed flexible cables. (IEC22753*). This article adds the following content:
For hair curlers, during the test in Chapter 11, the temperature rise of the external metal parts shall not exceed 130°C (130K). And within 5 minutes after the switch is turned off, when the temperature drops to 75°C (75K), PVC-sheathed flexible cables can be used. Added content to the table:
Note: For handheld hair dryers with a rated current exceeding 6A but not exceeding 10A, when the power cord length does not exceed 2m, a nominal cross-sectional area of ??0.75mm is allowed. power cable. Its length is determined by measuring the distance between the hair dryer's lead entry or protective cover and the power plug. 25.10 This article adds the following content:
For hair curlers with rotating wires and no wire sheaths on the outside, compliance can be determined by inspection and the following test. Equipment with swing parts The apparatus is similar to that shown in Figure 102. The hair curling iron equipped with the rotating wire is fixed to the swinging member so that when the swinging member swings to the middle position, the axis of the rotating wire is vertical and can pass through the swinging axis.
The rotating conductor is to be loaded so that a force is exerted on: - For a rotating conductor with a nominal cross-section of 0.75 mm2, 20 N is applied. - For other rotating conductors, 10N.
The distance A shown in the figure should be adjusted so that there should be minimal lateral movement of the rotating conductor and load when the swing member swings through its full range. If it is a flat rotating conductor, it should be properly fixed so that the main axis part of the conductor is parallel to the axis of the swing member. A current equal to the rated current is passed into the conductor, and its voltage is equal to the rated voltage or the upper limit of the rated voltage range. The swinging member should swing back and forth with a swing angle of 90° (45° on both sides of the vertical plane), a swing count of 10,000 times, and a bending rate of 60 times/min. | |tt | The component is bent only in a direction perpendicular to the plane of its core axis. After the test, the parts shall show no damage within the meaning of this standard, the protective devices shall not detach from the parts during the test, and the insulated parts of the rotating conductors shall not show obvious wear or fraying; in particular, the electrical connections shall not Interruption, a break in a conductor should not penetrate the insulation to render it accessible,
Bending is a forward or backward movement. Within each conductor, no more than 10% of conductor breaks are allowed. During testing, it may be necessary, for example, to tape the swivel access opening to prevent rotation. Any method used for this purpose must not interfere with the flexibility of the conductor protection device. 25.11This article adds the following content:
Knotting on the wire is only applicable to Y-type connection.
For curling irons with rotating wires, the requirements of this article should be as modest as possible. For curling irons with a swivel lead, the swivel access port shall not become jammed during the test. The following clause is added to this chapter:
25.101 Hair curlers with swivel wires shall be designed so that they cannot be connected to a clamping threaded power terminal or an unthreaded terminal if disassembled without the aid of special tools. . Compliance is determined by inspection and, if necessary, manual testing. 26 Terminals for external conductors
This chapter in GB4706.1 is applicable except for the following content. 26.1 The following content is added to this article:
The X-type and M-type connections that allow the use of soldered connections on electrical appliances are only applicable to hand-held electrical appliances. 27 Grounding Measures
This chapter in GB4706.1 is applicable.
28 Screws and Wiring
This chapter in GB4706.1 is applicable.
9 Creepage distances, electrical clearances and through-insulation distances 29
This chapter in GB4706.1 is applicable except for the following content. 29.1 The following content is added to this article:
For hair curlers, the distance through the insulation between metal parts separated by supplementary insulation can be reduced to 0.6mm, the distance through the corresponding basic insulation is at least 1mm, and the supplementary insulation To withstand the corresponding tests of 22.23, 30 heat resistance, flame resistance and tracking resistance
This chapter in GB4706.1 is applicable except for the following content. 30.1 The following content is added to this article:
For hand dryers and hand-held hair dryers, ball pressure tests are not performed on the thermoplastic material shells of supplementary insulation and reinforced insulation. 30.2 The following content is added to this article: ||tt || Helmet-style hair dryers must also pass the test inspection of Article 30.101 to see if they are qualified. 30.4 This article adds the following content:
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