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GB 4706.61-2008

GB 4706.61-2008_English: PDF (GB4706.61-2008)
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GB 4706.61-2008English145 Add to Cart 0--9 seconds. Auto-delivery Household and similar electrical appliances -- Safety -- Particular requirements for surface-cleaning appliances for household use employing liquids or steam GB 4706.61-2008 Valid GB 4706.61-2008

Standard ID GB 4706.61-2008 (GB4706.61-2008)
Description (Translated English) Household and similar electrical appliances. Safety. Particular requirements for surface-cleaning appliances for household use employing liquids or steam
Sector / Industry National Standard
Classification of Chinese Standard K61
Classification of International Standard 97.100
Word Count Estimation 18,182
Date of Issue 2008-12-30
Date of Implementation 2010-03-01
Older Standard (superseded by this standard) GB 4706.61-2002
Quoted Standard GB 4706.1-2005; GB/T 9258.2
Adopted Standard IEC 60335-2-54-2007, IDT
Drafting Organization China Household Electrical Appliances Research
Administrative Organization National Standardization Technical Committee appliances
Regulation (derived from) Announcement of Newly Approved National Standards No. 25 of 2008 (total 138)
Proposing organization China Light Industry Federation
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This Chinese standard relates to home-use liquid or vapor medium for surface (such as windows, walls, did not hold water pool) cleaning electric cleaning appliances, their rated voltage not exceeding 250V, also includes wallpaper peeling machine. Note 1: The appliance may be provided with heating elements or pressurized liquid container means. This standard relates to common hazards presented by appliances are in and around the home environment all the people that you may encounter. This standard does not cover: persons (including children) body, perception, mental capacity gaps, or lack of experience and common sense, impede the staff without supervision or guidance from the safe use of equipment. Children playing with the appliance. Note 2

GB 4706.61-2008
Household and similar electrical appliances.Safety.Particular requirements for surface-cleaning appliances for household use employing liquids or steam
ICS 97.100
National Standards of People's Republic of China
Replacing GB 4706.61-2002
Household and similar electrical appliances - Safety
Liquid or steam cleaning appliance of household surfaces
special requirements
(IEC 60335-2-54.2007 (Ed3.2), IDT)
Published 2008-12-30
2010-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Introduction Ⅲ
IEC Foreword Ⅳ
Introduction Ⅵ
1 Scope 1
2 Normative References 1
Definition 2 3
4 General requirements 2
General conditions for 5 tests 2
6 Category 2
7 Marking and instructions 2
8 Protection against access to live parts 3
Start electric appliance 3 9
10 Power input and current 3
11 heat 3
12 Void 3
Leakage current and electric strength at the operating temperature of 13 3
14 Transient overvoltages 4
15 Moisture resistance 4
16 Leakage current and electric strength 4
Transformer 17 and associated circuitry overload 4
18 Endurance 4
19 Abnormal operation 4
20 Stability and mechanical hazards 4
5 21 Mechanical strength
22 Structure 7
Internal wiring 23 8
24 elements 8
25 and the external power connection cord 8
26 with the external wiring lead terminal 9
27 earthing 9
28 and screw connection 9
Clearances 29, creepage distances and solid insulation 9
30 and fire resistant 9
31 9 rust
32 radiation, toxicity and similar hazards 9
Appendix 10
Reference 10
FIG wear test apparatus 101 support tube flow 5
FIG carrier 102 curved pipe resistance test apparatus 6
FIG cold resistance test Shape 103 7
Bending position freezer FIG extraction pipe 1047
All technical contents of this section is mandatory.
GB 4706 "and similar household electrical appliances," it consists of several components, Part 1 General Requirements for the other parts of special
This section is part of the 61 GB 4706. This section should be safe first and GB 4706.1-2005 "Household and similar electrical appliances
Part 1. General Requirements, "with the use.
Stated in this section "applicable" section, it indicates that the corresponding terms in GB 4706.1 applicable to this section; this section states that "place"
Or "Edit" section, this section shall prevail; in this section indicate the "increase" portion, said to meet the appropriate bar in addition to GB 4706.1
Outside money, it should also comply with this part of the increase in provisions.
This section is equivalent to using IEC 60335-2-54.2007 "Safety Section 2-54 and similar household electrical appliances. a liquid or vapor
Particular requirements for surface cleaning appliances steam "(version 3.2).
This partial replacement GB 4706.61-2002 "safe liquid surface cleaning appliance particular household and similar electrical appliances
The main difference between this part and GB 4706.61-2002 are.
--- Chapter 1 increase in wallpaper stripping machine;
--- increased 3.101;
16.3 --- increased. in addition to electrical connections, the carrier tube immersed in an aqueous solution containing approximately 1% NaCl temperature of 20 ℃ ± 5 ℃ of IH, in
An aqueous solution of an applied voltage 5min 2000V between each wire and the other wire is connected together. Then all guide
1min 3000V voltage is applied between the electrical component and the salt solution;
29.2 --- increased. the micro-environment pollution degree 3 unless the insulating package, or a location such that the appliance can not, in normal use
Exposure to the polluted environment.
This section was proposed by China Light Industry Federation.
This part of the jurisdiction of the National Standardization Technical Committee appliances (SAC/TC46).
This part of the drafting unit. China Academy of household appliances, household appliances National Quality Supervision and Inspection Center.
The main drafters of this section. Lu Jian, Zhu Yan, Zhao Weibo, Xu Zhengang, Yan Ling, Sun Peng.
This section was first released in November 2002, this is the first revision.
IEC Foreword
1) The International Electrotechnical Commission (IEC ) is an international scope by all national Electrotechnical Commission (IEC NC) consisting of standardization organizations.
Its purpose is to promote international cooperation on all questions concerning standardization in the electrical and electronic fields. For this reason, IEC carry out related activities,
And publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specification (PAS), Guide (hereinafter collectively referred to as the IEC publication).
These standards entrusted to technical committees. Any IEC National Committee interested in the subject dealt with may
Participate in this preparation. IEC linked with international, governmental and non-governmental organizations may also participate in the development of standards. IEC
In close cooperation with the International Organization for Standardization (ISO ) on the basis of the agreement the two organizations.
2) IEC technical aspects of formal decisions or agreements, by all countries interested to participate in the Commission of its Technical Committee
Given. Therefore, these decisions or agreements are expressed as related issues consensus in the international arena.
3) IEC standard manner recommended for international use and are accepted by the National Committees in that sense. In order to ensure that the IEC
When the accuracy of the technical content of the publication and make any reasonable effort to IEC standards is their most used and any
End-user is not responsible for the misunderstanding.
4) In order to promote international unification, National Committees to ensure maximum use of international standards in their national or regional standards
quasi. IEC standards corresponding to any difference between the national or regional standard must make clear that in the latter.
5) IEC provides no marking to indicate its approval procedures, but does not mean any equipment declared to comply with certain criteria to take responsibility.
6) All users should ensure that they have the latest version of this section.
7) IEC or its managers, employees, agents or support staff (including members of the Independent Expert and Technical Commission) and IEC National Committee
Members will not deal with the use of any personal injury or rely on this publication or other IEC IEC publication caused property damage or
This publication costs other than direct or indirect loss, or from any of his property (including legal fees) and expenses responsibility.
8) It should be noted in this section are listed reference standard (normative references). For proper use of this section is concerned, the use of references
Standard (Normative references) is indispensable.
Content 9) should be noted that certain provisions of this International Standard may involve patent rights, IEC will not be liable to confirm the patent.
This section formulated by IEC technical committee 61 "Household and similar electrical appliances."
This part IEC 60335-2-54.2002 3rd Edition is based on the development, based on the following documents.
DIS Report on voting
61/2244/FDIS 61/2231/RVD
61/2624/FDIS 61/2679/RVD
61/3195/FDIS 61/3235/RVD
This part of the version number is 3.2.
Vertical edge line portion is drawn by the addendum portion 1 and the supplemental member 2 is modified.
French version of this section did not vote.
This part of IEC 60335-1 and its addendum in conjunction with the latest version. This part is based on IEC 60335-1.2001 4th Edition
Note 1. "first portion" mentioned in the standard refers to the content according to IEC 60335-1.
IEC 60335-1 provisions of this section are not mentioned, as long as reasonable, can be used. This section "addition", "Edit" or "Generation
For "place, the relevant provisions of this section be modified accordingly.
Note 2. The following numbering.
--- increase, in the first part of the terms, tables, charts, starting from 101;
--- In addition to the new provisions of the Notes and related to the first part of the comment, other numbers should be starting from 101, including those sections are replaced with
--- increased use Appendix Appendix AA, BB, etc. Annex mark.
Note 3. The following font indicates.
--- Requirements. printed.
--- Test Code. italics.
--- Note. lowercase printed.
Part 3 is defined by a chapter in bold. If you define the content when it comes to an adjective, the adjective and the associated noun are also in bold.
The following differences exist in some countries.
--- 6.1. handheld cleaning appliance in normal use and hand grip portion should be Ⅱ Ⅲ class or classes (Netherlands);
--- 22.40. Add paragraph does not apply (USA);
--- 22.104. instruments imported from different dimensions (USA).
The Committee decided that the contents of this section and related addendum in the IEC website http. // webstore. iec. The data specified ch
The special is not changed before the promulgation of standards, after the promulgation of the standard will be.
Replaced by a revised edition, or
It has been assumed in the drafting of this section, a person appropriately qualified and experienced to implement the provisions of this section.
This portion is recognized that the use of household electrical appliances and the like under normal conditions noted when the manufacturer's instructions for the appliance
An acceptable level of risk international protection of electrical, mechanical, thermal, radiation and fire, it also includes the use may be expected to occur
Abnormal circumstances, and in view of electromagnetic interference affect the way for the safe operation of the appliance.
In developing this part has been as much as possible into account the requirements of GB 16895 in order to make electrical appliances when connecting to the grid
Gas wiring rules requires coordinated.
If a number of functions related to the appliance GB 4706 Part 2 different specific requirements, as far as is reasonable in the circumstances
Under Part 2 related to the special requirements of the standard are applied to each function. If applicable, should take into account a feature of other functions
This part is a matter of security appliance product family standards, and standards covering at the same level as in the same category and the same subject
In priority.
An appliance that complies text of this section, when examined and tested, found to have other features that will be covered by the requirements of this damage
And when the level of security, it will not be considered to comply with the safety guidelines in this section.
Product use various materials or various forms of structures other than specified in this part, this may be the product according to the present section
The intent of these requirements for inspection and testing. If found to be substantially equivalent, it can be determined which comply with this part.
Household and similar electrical appliances - Safety
Liquid or steam cleaning appliance of household surfaces
special requirements
Range 1
GB 4706.1-2005 in this chapter replaced by the following.
This section relates to the home, using a liquid or vapor medium, a surface (such as windows, walls, swimming pool water is not installed) of the electrical cleaning process
Cleaning appliance, its rated voltage not exceeding 250V, including wallpaper peeling machine.
Note 1. The tool may be provided with pressurizing means of the heating element or the liquid container.
Common hazards presented by the appliances covered in this section, is in and around the home environments of all people may experience.
This section does not cover.
--- persons (including children)
Physical, perceptual, intellectual abilities defects; or
Lack of experience and common sense;
Obstruct above-mentioned persons using the appliance safely without supervision or instruction situation.
--- children playing instruments situation.
Note 2. Note the following conditions.
--- for use on a vehicle, ship or aircraft, appliances, additional requirements may be necessary;
--- the national health authorities, the national labor protection authorities, the national water supply authorities and similar authorities of the provisions of the attached appliances
Plus requirements.
Note 3. This does not apply to.
--- floor treatment machines and wet scrubbing machines (GB 4706.57).
--- permanently fixed to the building of clean utensils.
--- GB 4706.89 includes appliances, namely.
Pressure exceeds 2.5MPa appliances;
The liquid temperature exceeds 160 ℃ the appliance;
Input power exceeds 3500W appliance;
Pressure volume exceeding 5L appliances.
--- cleaning appliances for commercial or industrial use.
--- appliance intended for use in a corrosive or explosive gases (such as dust, vapor or methane gas) locations where special conditions.
--- fabric steam (GB 4706.84).
2 Normative references
Terms of the following documents constitute provisions of this section by reference in this section. For dated reference documents, all later
Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to agreements based on research of
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB 4706.1-2005 in this chapter except as follows, are applicable.
GB/T 9258.2 Analysis of Coated Abrasives abrasive particle size - Part 2. Determination of grain size distribution of P12 ~ P220
(GB/T 9258.2-2008, ISO 6344-2.1998, IDT)
Definition 3
The following terms and definitions apply to this section.
GB 4706.1-2005 in this chapter except as follows, are applicable.
3.1.9 Replacement.
The appliance is operated according to the most unfavorable conditions specified in the instructions for use.
With a force of 30N of the cleaning head is pressed against the vertical flat glass, at a rate of 15 cycles per minute moving up and down, moving distance exceeds
1m. 20 ℃ ± 5 ℃ with water continuously wetting the glass surface, the holding film of water on the glass surface.
For the steam stripping wallpaper and surface cleaner machine, using a stainless steel plate placed vertically instead of flat glass without humidification. Such as
If the instrument does not intend steam outlet pressed onto the plane, the appliance consisting of air, air outlet downward vertical plane about 45 °.
Steam pressure generated in the steam chamber exceeds 50kPa, and when no vapor pressure can not be reduced to atmospheric pressure appliance.
Note. the steam chamber may be mounted to the appliance or is connected to the appliance through a hose.
4 General requirements
This chapter in GB 4706.1-2005 is applicable.
General conditions for 5 tests
GB 4706.1-2005 in this chapter except as follows, are applicable.
5.2 Addition.
Each test 21.101 - 21.105 are using the new hose.
5.101 appliance with a heating element was tested by electric appliances, even if with the motor.
Category 6
GB 4706.1-2005 in this chapter except as follows, are applicable.
6.1 Review.
Class should implement Ⅰ, Ⅱ Ⅲ class or classes.
6.2 Addition.
Class Ⅰ AND Ⅱ handpiece ejection liquid should be at least IPX7, other implements at least IPX4, a voltage less than 24V Ⅲ class is
Tools can be IPX0.
7 Marking and instructions
GB 4706.1-2005 in this chapter except as follows, are applicable.
7.1 Review.
Device using the "watt (W)" represents the rated input power.
Preparation of the appliance connected to the water supply should be marked the maximum allowable pressure, expressed in megapascals (MPa).
Steam cleaner, wallpaper stripping machine and ejection liquid temperature exceeds 50 ℃ appliance, it shall be marked with IEC 60417.2002 in the 5597 flag, or
Marked with the following warning.
Warning. There is risk of burns.
101 Note. This flag is a warning symbol and GB/T 2893.1 provisions apply.
Annex appliance shall be marked with the maximum load output socket, with "W (W is)." FIG.
102 Note. labeling may be close to the output connector on the appliance position.
The sum of the rated input power of the appliance and the maximum load appliance output connector should be marked on the appliance.
7.6 Addition.
5597 sign steam 2002. IEC 60417
7.12 Addition.
Manual liquid or vapor can not be described means receiving an electrical component directed toward, for example, inside the oven.
For pressure equipment should be noted that when using the injection hole can not be opened, should be given of the re-flooding safety.
Instructions shall be described and should maintain unplug the appliance after use.
Surface cleaner for cleaning a You Yongchi, instructions shall include the following.
"When the swimming pool water can not be used."
If the IEC 60417. sign in 20,025,597 shall explain its meaning.
8 Protection against access to live parts
This chapter in GB 4706.1-2005 is applicable.
9 start electric appliances
GB 4706.1-2005 in this chapter does not apply.
Power input and current 10
This chapter in GB 4706.1-2005 is applicable.
11 fever
GB 4706.1-2005 in this chapter except as follows, are applicable.
11.4 increase.
If the appliance is equipped with the temperature rise of the motor, transformer or electronic circuitry exceeds a limit, and the input power is less than its rated power input, the test
Repeated at 1.06 times the rated voltage.
11.7 Replacement.
Appliance run to the steady state.
101 Note. water raised to a position capable of holding the liquid or vapor jet.
The appliance should also produce steam to run without spray steam.
Appliances with automatic reel, the cord out first third of the total length of the working 30min, then the power cords to pull
Out, continue to work.
11.8 increase.
Supplying steam to the handheld portion of hose accessible surface temperature shall not exceed the short-time holding the handle in normal use of the defined temperature
Value, when the hose is covered by a non-metallic hose textile material, the textile material having a surface temperature should not exceed 80K.
When the appliance is operated at 1.15 times the rated input power conditions, motors, transformers, electronic circuit components, including directly by these components
Temperature impact site can exceed the limit value.
101 Note. pressure equipment should be measured pressure value of 22.7 for the test.
12 Void
Leakage current and electric strength at the operating temperature of 13
This chapter in GB 4706.1-2005 is applicable.
14 transient overvoltage
This chapter in GB 4706.1-2005 is applicable.
15 Moisture resistance
GB 4706.1-2005 in this chapter except as follows, are applicable.
15.1.1 increase.
The liquid ejection apparatus, the grasping hand during normal use, and the member to be subjected to an electronic component having IPX7 test, except
They are not more than 24V class Ⅲ structure.
15.2 increase.
A liquid filled container of the appliance from about 1% NaCl aqueous solution containing, if hand-held portion having a liquid container, then the portion is placed in the least
Advantageous position, the other part of the container with a liquid, the portion is placed on a horizontal surface, and then flip to the position of the most destabilizing, 5min
After the return to normal operating position.
101 Note. this test is not performed on the part of IPX7.
16 Leakage current and electric strength
GB 4706.1-2005 in this chapter except as follows, are applicable.
16.3 increase.
In addition to electrical connections, the carrier tube immersed in an aqueous solution containing approximately 1% NaCl temperature of 20 ℃ ± 5 ℃ IH, each in an aqueous solution
5min 2000V voltage is applied between the wire and the other wire is connected together. Is then applied between the conductive members and all salt solution
Plus 3000V voltage 1min.
Overload protection of transformers and associated circuitry 17
This chapter in GB 4706.1-2005 is applicable.
18 Endurance
GB 4706.1-2005 in this chapter does not apply.
19 Abnormal operation
GB 4706.1-2005 in this chapter except as follows, are applicable.
19.2 increase.
The appliance disconnected from the water source, and operates in a state where the liquid container is not filled with water.
19.4 increase.
For steam wallpaper strippers and cleaning appliance, the controller should be no restrictions in Chapter 11 of the pressure during the test failure.
20 Stability and mechanical hazards
GB 4706.1-2005 in this chapter except as follows, are applicable.
20.2 increase.
NOTE. requirements do not apply to movement of the brush member and the like.
20.101 appliance structure should be able to prevent accidental starting.
By visual inspection and with a cylindrical probe in the test to determine whether the switch qualified, the probe having a diameter of 40mm, hemispherical tip.
When the test instrument should not be started.
NOTE. use an automatic off switch is considered to be satisfactory.
21 Mechanical strength
GB 4706.1-2005 in this chapter except as follows, are applicable.
21.1 increase.
For hand-held instrument, which in the most unfavorable position falls from 2m height onto a hardwood floor, to determine their eligibility.
Three tests.
For the user's body carry the appliance, which in the most unfavorable position fall to a concrete floor from a height of 1m, to determine their eligibility.
Three tests.
21.101 carrier should be resistant to the tube squeezing.
By the following test to determine whether it is acceptable.
The tube is placed between two parallel steel plates. Each plate length 100mm, width 50mm, the longitudinal edges have a radius of 1mm
Fillet. Steel tube axis at right angles to the long sides. Plate placed at the end of the hose from about 350mm.
The steel sheet at a rate of (50 ± 5) mm/min pressed together, until the pressure reaches 1.5 kN, and then the force is released off. Hose
It is placed in an aqueous solution of 1% NaCl, and the wires connected to the saline solution between the electric strength test of 16.3 together.
21.102 carrier should be resistant to wear hose.
By the following test to determine whether it is acceptable.
The end of the hose is fixed to the crank mechanism 101 shown in FIG connecting rod to a crank rotation speed 30r/min rotation of the hose the other
One end of the horizontal movement back and forth, the moving distance of more than 300mm.
In millimeters
A --- crank mechanism;
B --- link;
C --- wheel;
D --- grinding belt.
Flow tube 101 carrying wear test apparatus of FIG.
The hose with a smooth rotation of the roller support, is attached at the outer edge with an emery roller, moving at a speed of 0.1m/min of.
The abrasive is silicon carbide emery cloth, grain size in accordance with ISO 6344-2 is P100. The other end of the hose with a mass of suspension 1kg
Weights as a guide to prevent rotation of the hose. At the lowest position, the maximum distance from the weight of the wheel center is 600mm.
Test was carried out to crank 100 weeks.
After the test, the insulation should not substantially exposed, the hose is immersed in an aqueous solution of 1% NaCl, performed between the charging member and brine solution
Electric strength test of 16.3.
21.103 hose carrier should be resistant to bending.
By the following test to determine whether it is acceptable.
The pivot arm is connected to the end of the hose intended motorized cleaning head 102 shown in FIG fixing test device, pivot the arm shaft and extending into the hose
The distance between the rigid member is at (300 ± 5) mm, the horizontal position of the pivot arm is raised from 40 ° ± 1 °. The quality of a suspension of 5kg weights
At the other end of the hose, the hose at a convenient or along a suspension, such that when the pivot arm is in a horizontal position, the weight of the hose is not supported
Note 1. The test may need to reposition weight.
The maximum weight that the hose along the inclined surface of a slide-tilt 3 °. By rotation of the crank (10 ± 1) r/min speed, and the pivot lift arm
Test was carried out to crank 1250 weeks, and then rotated by 90 ° fixed end of the hose, the test was continued for 1,250 weeks. In the other two
A 90 ° position of the above experiment was repeated.
Note 2. If the hose rupture before the cranking 5,000 weeks, the end of the bending test.
After the test, the hose should be able to withstand the electric strength test of 16.3.
Raised position lowered position of the crank the crank
A --- crank mechanism;
B --- manipulator;
C --- inclined surface.
FIG bending resistance of the tube test apparatus 102 carriers
21.104 carrier should be resistant to twist the hose.
By the following test to determine whether it is acceptable.
The end of the hose is fixed in a horizontal position, and the other end of the hose freely suspended. The end of the periodic rotation, each packet cycle
Including a direction rotated five times, five times again rotating in opposite directions, the rotation speed is 10r/min.
1000 test cycles.
After the test, the hose should not comply with the damaged portion sense, and can withstand the electric strength test of 16.3.
21.105 carrier should be resistant to cryogenic hose.
Determine whether it qualified by the following test.
The 600mm long hose 103 is bent into shape, and the ends tied 25mm. The tube is placed in a temperature
(15 ± 2) in the cabinet ℃ 2h. Bent immediately after removal from the cabinet 3, as shown in FIG. 104, the bending frequency of 1/s.
The above test was repeated three times.
There should be no cracks or breakage on the hose, and should be able to withstand the electric strength test of 16.3.
Note. Any discoloration can be ignored.
FIG cold resistance test Shape 103
Centre position
Bending each tube position at the end and beginning
Bending position freezer extraction pipe 104 of FIG.
22 Construction
GB 4706.1-2005 in this chapter except as follows, are applicable.
22.6 increase.
Drainage hole diameter of at least 5mm, or the minimum width of 3mm, the cross-sectional area of at least 20mm2.
22.7 Replacement.
Pressure equipment shall have sufficient protection against the risk of overpressure.
If a liquid or steam is sprayed through the protective means, should not affect the electrical insulation, or exposing the user to danger.
Compliance is checked by inspection and the following test.
Measuring the pressure required to operate when the maximum pressure value in Chapter 11 test, the test pressure is measured after adjusting device failure. Measurements
Should not exceed three times the measured value of the 11th chapter test. Then all protection means for limiting the pressure failure, the pressure of the steam generator
Chapter 11 was raised to the value measured in the test 5 times or pressure regulating device failure when the pressure measurement twice, whichever is higher. The pressure remains
60s, the container should be no leakage.
With a hose and a steam supply device with adjustable steam cleaner, working conditions specified in Chapter 11, Chapter 11, it should be
Pressure test operations required adjustment device failure.
Pressure should not exceed 3 times the value measured when the test Chapter 11. The steam outlet blocked, adjusting means opens the steam supply. except
The weak position of the container outer shell, the hose should not leak. If a leak occurs, the test is repeated on another sample, the same should be
Leak way.
For fast steam cleaners, steam block the water outlet of the vessel pressure is increased to the operation of limiting protection device. Pressure should not exceed
200kPa. The protective device is then plugged outlet, the pressure value is increased to twice the previous value, the pressure holding 60s, the container should not be
101 Note. Rapid steam cleaner is an appliance. a small amount of water pumped out from the tank in the appliance, the steam generated when water contacts the hot surface of the steam chamber
Steam, water and steam chamber are in the normal atmospheric pressure.
22.101 rotating member shall not work loose.
Determine whether it is checked by inspection.
Note. using a reverse thread is considered to meet the requirements.
22.102 vacancies.
22.103 pressure equipment shall be constructed in accordance with the use of the implement instructions normal operation, not due to water splashing, sudden steam or hot water
Eruption to the user at risk. When the driving switch is turned off, steam explosion should stop.
When the inlet opening of the container lid, the pressure should be released before the cover is fully opened, hot water or steam in order to avoid sudden discharge somehow
To users at risk.
By inspection test in Chapter 11 and open at the end of the test water cover Compliance is checked.
22.104 limiting protection device in operation during the test 19.4 and 22.7 should one inlet, the inlet diameter of at least 5mm, or best
Small width of 4mm, cross-sectional area of at least 20mm2. It should not be smaller than the area of the outlet area of the inlet.
NOTE. This does not apply quick steam cleaner.
By measuring to determine their eligibility.
For more than 22.105 appliance with a steam generator, each of the steam generator with a heating element, should be protected with limited pressure
The conn...