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GB 4706.64-2012 English PDF

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GB 4706.64-2012: [GB/T 4706.64-2012] Safety of household and similar electrical appliances -- Part 2: Particular requirements for scissor type grass shears
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GB 4706.64: Evolution and historical versions

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GB 4706.64-2012English969 Add to Cart 6 days [Need to translate] [GB/T 4706.64-2012] Safety of household and similar electrical appliances -- Part 2: Particular requirements for scissor type grass shears Valid GB 4706.64-2012
GB 4706.64-2003English559 Add to Cart 3 days [Need to translate] Safety of household and similar electrical appliances Particular requirements for scissor type grass shears Obsolete GB 4706.64-2003

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Standard similar to GB 4706.64-2012

GB/T 4343.2   GB/T 3883.311   GB/T 3787   GB/T 4706.57   GB/T 4706.58   GB/T 4706.56   

Basic data

Standard ID GB 4706.64-2012 (GB4706.64-2012)
Description (Translated English) [GB/T 4706.64-2012] Safety of household and similar electrical appliances -- Part 2: Particular requirements for scissor type grass shears
Sector / Industry National Standard
Classification of Chinese Standard K64
Classification of International Standard 25.140.20
Word Count Estimation 37,345
Older Standard (superseded by this standard) GB 4706.64-2003
Quoted Standard GB 1406; GB/T 1804; GB/T 2423.2; GB/T 2423.8; GB 3667; GB 4208; GB/T 5169.5-1997; GB/T 5169.11; GB/T 5169.12; GB/T 5169.13; GB/T 5169.16; GB/T 7153; GB/T 12113-2003; GB/T 14472-1998; GB/T 16935.1-1997; IEC 60664-1; GB 17465.1; GB 17465.2; GB/T 17626.2; GB
Adopted Standard IEC 60335-2-94-2008, IDT
Regulation (derived from) National Standards Bulletin No. 28 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Chinese standard provides in order to cut the lawn for the main purpose of the maximum cutting width of 200 mm handheld electric scissors type grass shears (hereinafter referred to as grass shears), the AC rated voltage not exceeding 250 V, DC voltag

GB 4706.64-2012: [GB/T 4706.64-2012] Safety of household and similar electrical appliances -- Part 2: Particular requirements for scissor type grass shears


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Safety of household and similar electrical appliances.Part 2. Particular requirements for scissor type grass shears ICS 25.140.20 K64 National Standards of People's Republic of China Replacing GB 4706.64-2003 Household and similar electrical appliances - Safety Part 2. scissor-type grass shears requirements Part 2. Particularrequirementsforscissorstypegrassshears (IEC 60335-2-94.2008Ed3.0, Householdandsimilarelectrical appliances-Safety-Part 2-94. Particularrequirementsforscissorstype grassshears, IDT) Published 2013-05-01 2012-11-05 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Table of Contents

Introduction Ⅲ Introduction Ⅴ 1 Scope 1 2 Normative References 1 2 3 Definitions 4 General Requirements 3 General conditions for 5 tests 3 6 Category 3 7 Marking and instructions 3 8 Protection against access to live parts 4 9 start electric appliances 4 10 Power input and current 4 11 fever 4 12 Void 4 Leakage current and electric strength at operating temperature 4 13 14 Transient overvoltages 4 15 Moisture resistance 5 16 5 Leakage current and electric strength Transformer 17 and associated circuitry overload 5 18 Endurance 5 Abnormal operation 19 5 5 20 Stability and mechanical hazards 21 Mechanical strength 6 22 Structure 7 Internal wiring 23 8 24 elements 8 Coupling the external power supply 25 and the cord 8 26 with the external lead terminals 8 27 earthing 9 28 and screw connection 9 29 creepage distances and clearances solid insulation 9 30 and fire resistant 9 31 9 rust 32 radiation, toxicity and similar hazards 9 Appendix 14 Annex B (normative) appliance 14 is powered by a rechargeable battery Annex D (normative) motor thermal protector 16 A motor having only basic insulation Annex I (normative) suitable appliance rated voltage 16 Symbols Appendix AA (informative) for scissors type grass shears 17 Appendix BB (informative) vibration 19 Annex CC (normative) Noise test code - Engineering method (Grade 2 accuracy) 22 Examples Appendix DD (informative) materials and structures in line with the requirements of artificial ground (see CC.4.1) 26 Appendix EE (informative) Safety Instructions 28 Reference 30 FIG member shearing device 101 - the width of cut 10 Grass shears 102 Example 10 FIG. FIG amount epitaxial cutting blade 103 11 FIG Example 104 as compliance with undesirable and a measurement method of 11 Hand protection FIG grass shear strength test 105 and may be located a schematic layout 12 Shear strength test apparatus 106 of FIG. 12 107 impact test apparatus 13 of FIG. FIG BB.1 (handle) the sensor position/orientation Example 21 FIG microphone position CC.1 hemispheres (see Table CC.1) 23 FIG DD.1 artificial covering sketch measurement surface ground (not to scale) 27 Table CC.1 position coordinate value of the microphone 23 Table 24 CC.2 absorption coefficient

Foreword

All technical contents of this section is mandatory. --- GB 4706 "Household and similar electrical appliances - Safety" is divided into several sections. --- GB 4706.54 "Safety - Part 2 Household and similar electrical appliances. pedestrian and handheld trimmers, lawn edge trimmers Special requirements "; --- GB 4706.64 "Part 2 Safety and similar household electrical appliances. scissor-type grass shears requirements"; --- GB 4706.65 "Safety - Part 2 Household and similar electrical appliances. pedestrian-controlled electric lawn scarifiers and Songsha machine Special requirements "; --- GB 4706.78 "Part 2 Safety and similar household electrical appliances. pedestrian controlled lawnmower requirements for"; --- GB 4706.79 "Part 2 Safety and similar household electrical appliances. a hand-held gardening power chip blower, dust suction and blowing machine Dual requirements for absorption machines. " This section GB 4706.64 "Part 2 Safety and similar household electrical appliances. scissor-type grass shears requirements." This section drafted in accordance with the rules GB/T 1.1-2009 given. Please note that some of the content of this document may involve patents. The issuing authority of this document does not assume responsibility to identify these patents. This partial replacement GB 4706.64-2003 "Household and Similar Electrical Appliances scissor type grass shears requirements." GB 4706.64-2003 comparison with this part, the main technical changes are as follows. --- modify the scope of this relates to scissor type grass shears (see Chapter 1); --- modify and increase the part of the definition (see Chapter 3); --- 6.1,11.7,22.35 editorial changes; --- In the "signs and instructions", the increase in the placement of the address of the manufacturer, year of identification, warning and information content, language, symbols map Shape, a predetermined color (see 7.1); --- amend the provisions of the operating manual (see 7.12); --- deleted the original 8.1; --- deleted the original 10.1; --- Chapter 10 does not apply to modifications; --- Chapter 11 11.4,11.6 amended as NA; --- revised 11.5; --- increasing the durability requirements (see 18.101,18.102); --- Chapter 19 19.7 revised to NA; 20.1 --- deleted Chapter 20, increasing the general requirements (see 20.101), (except for the shearing device) power drive assembly (see 20.102), the shearing device configuration (see 20.103) and hand protection (see 20.104); --- modify the "strength and rigidity" in the first paragraph of the test method (see 21.101.1), increasing the strength and rigidity of the shearing device (see 21.102); --- amend the provisions of section 22.12 of; --- an increase of 22.40; --- increased extension rod controller (see 22.101) and shearing means shield (see 22.102); --- Additional modifications to the predetermined switch (see 24.1.3); --- revised 25.1,25.5,25.7; --- increased 25.7.101; Chapter 28 --- revised to apply; --- 29.2 increase "pollution 3 apply to this instrument" requirement; --- change the provisions of Chapter 31; --- modifications and additions to Appendix B, Appendix AA, Annex BB, Appendix CC, Appendix DD, appendix EE, and increased by reference. This section is equivalent to using IEC 60335-2-94.2008 (Version 3.0) "Safety Section 2 and similar household electrical appliances. scissor-type grass Shears requirements ", and equivalents employed 60335-1 IEC .2004 (4.1 version)" of the first portion and similar household electrical appliances. pass Used with the General requirements ". a requirement," the development of GB 4706.1-2005 "household and similar electrical appliances - Safety - Part 1. This section states that "suitable", showing the corresponding provisions applicable in GB 4706.1-2005; stated in this section, "Change", and should The provisions of this section prevail; this standard states "Edit", and indicates the corresponding provision of GB 4706.1-2005 content should be present After some changes the contents of the subject, and the provision of other content still apply; this states "addition", expressed in addition to compliance with GB 4706.1- Outside the corresponding provision 2005, this section shall comply with the added provision. Consistency correspondence relationship with international documents in this section of our normative references the following documents. --- Engineering method of noise sources sound power level a reflecting plane free field GB/T 3767-1996 sound pressure (EqvISO 3744.1994) --- GB/T 8890-2007 seamless copper alloy heat exchanger (EN12449.1999, MOD) --- GB/T 10396-2006 tractors and agricultural machinery, lawn and garden equipment - Safety signs and hazard pictorials - General principles (ISO 11684.1995, MOD) --- GB/T 16273.1-2008 Graphical symbols apparatus Part 1. Common symbols (ISO 7000.2004, NEQ) --- GB/T 17248.2-1999 acoustic noise emitted by machinery and equipment and other operating position specified position emission sound pressure A reflecting surface of the measurement stage Engineering method in free field (eqvISO 11201.1995) This section was proposed by China Electrical Equipment Industrial Association. This part of the jurisdiction of the National Power Tools Standardization Technical Committee (SAC/TC68). This section was drafted. Shanghai Electric Tool Research Institute. This part mainly drafted. Gu Jing, Li Bang Association, Yin Haixia, Liu Jiang. This section replaces the following previously issued as follows. --- GB 4706.64-2003.

Introduction

The enactment of this section based on. the implementation of its provisions are suitably qualified and experienced staff. This section admit the internationally recognized danger level of protection, for example, when the reference manufacturer's instructions when operating in normal use, electrical appliances Air, mechanical, heat, fire and radiation. It also includes practical foreseeable abnormal conditions. This section considers the possible requirements GB T/16895 so as to have compatibility when the appliance is connected to the mains gauge. If the appliance within the scope of this functionality GB 4706 also includes a second portion of the other, as long as reasonable, applicable to the corresponding part 2 For each function. If applicable, to consider the impact of a function to another function. This part is a matter of security appliance product family standards take precedence over the same purpose and the same level of common standards. In line with the provisions of this part of the instrument, if and when the inspection and testing, we found that there are other factors that will affect the safety of these requirements involved Level, will not be considered in line with the principles of safety standards. Appliance or used material different from the structure type portion of the present requirements, can be tested and the test requirements as intended, if the card Ming are equivalent, it can be considered to meet this section. Household and similar electrical appliances - Safety Part 2. scissor-type grass shears requirements

1 Scope

GB 4706.1 of this chapter for the change. This section defines the maximum width at a shear cut lawn 200mm for the primary purpose of the electric hand shears cut grasses (hereinafter Acronym grass shears), which is not greater than 250V AC rated voltage, the DC voltage is less than 50V. This section applies to all persons appearing general danger in normal use and reasonably foreseeable misuse grass cutting process. 101 Note. It should be noted in China, the country responsible for health, protection of labor, the national water sector and similar departments may have special requirements. Chargers requirements specified by GB 4706.18. And EMC noise other than environmental requirements are not considered in this section.

2 Normative references

In addition to the following provisions, GB 4706.1 of this chapter apply. increase. The first part of the GB 3883.1-2008 Safety of hand-held power tools. General requirements (IEC 60745-1.2006, IDT) GB/T 4269.1-2000 machinery and agricultural and forestry tractors, lawn and garden equipment other operator controls and display means Symbols of the first set with. Common symbols (idtISO 3767-1.1991) GB/T 4269.3-2000 machinery and agricultural and forestry tractors, lawn and garden equipment other operator controls and display means Symbols set Part 3. powered lawn and garden machinery symbols (idtISO 3767-3.1991) GB/T 5013.4-2008 rated voltage of 450/750V rubber insulated cables and Part 4. Cords and flexible cables (IEC 60245-4.2004, IDT) GB/T 5023.5-2008 rated voltage of 450/750V and below PVC insulated cables Part 5. Flexible cables (cords) (IEC 60227-5.2003, IDT) GB/T 8910.1-2004 held portable power tool handle Measurement of vibrations Part 1. General (ISO 8662-1. 1988, IDT) GB/T 15706.1-2007 basic concepts of mechanical safety and General Design - Part 1. Basic terminology and methods (ISO 12100-1. 2003, IDT) GB 17465 (all parts) for household and similar appliances couplers [IEC 60320 (all parts)] GB/T 20247-2006 acoustical reverberation room sound absorption measurements (ISO 354.2003, IDT) GB/T 25078.1-2010 low - noise machinery and equipment design implementation recommendations Part 1. Planning (ISO /T R11688-1. 1995, IDT) ISO 3744.1994 Determination of sound power levels of noise sources reflecting plane Free Field Engineering method (Determi- sound pressure nationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Engineeringmethodinanessen- tialyfreefieldoverareflectingplane) ISO 11201.1995 for machinery and equipment noise emitted operative position and other specified measuring the emission sound pressure levels A free field approximation reflecting plane engineering methods (Acoustics-Noiseemittedbymachineryandequipment-Meas- urementofemissionsoundpressurelevelsataworkstationandatotherspecifiedpositions-Engi- neeringmethodinanessentialyfreefieldoverareflectingplane) ISO 11684.1995 Tractors and machinery for agriculture and forestry, powered lawn and garden equipment - Safety signs and hazard pictorials - General principles (Trac- tors, machineryforagricultureandforestry, poweredlawnandgardenequipment-Safetysignsand hazardpictorials-Generalprinciples) ISO 7000.2004 Graphical symbols apparatus Part 1. Common symbols (Graphicalsymbolsforuseon equipment-Indexandsynopsis) ISO 13852.1996 Safety of machinery Safety distances to prevent danger zones of the upper limbs (Safetyofmachinery-Safetydis- tancestopreventdangerzonesbeingreachedbytheupperlimbs) CR1030-1.1995 hand-arm vibration reducing vibration damage Guide Part 1. Mechanical engineering design method (Hand-armvi- bration.Guidelinesforvibrationhazardsreduction.Engineeringmethodsbydesignofmachinery) EN12449.1999 Seamless exchanger (Copperandcopperaloys-seamless, roundtubesfor copper alloy generalpurposes)

3 Terms and Definitions

In addition to the following provisions, GB 4706.1 of this chapter apply. 3.1.9 change as follows. Work normaloperation The appliance at rated voltage, is applied to reach the rated load operation in the input power. 3.5.2 change as follows. Hand-held appliances hand-heldappliance Normal operation of the portable appliance gripped by hand, the use further comprises extension rod and/or by means of wheels, rails or the like to be supported Support, otherwise it will not keep the appliance in its operating position. 3.101 Crop width widthofcut Shearing means measured from the knife edge of a tooth or the teeth of the clipboard to the effective width of the cut edge of a last tooth, taken Which is greater (see Figure 101). 3.102 Scissors type grass shears scissorstypegrassshears Mowing machine having two blades, wherein the cutting blade along a linear or curved reciprocating movement (see FIG. 102). 3.103 Cutter bladetooth The opening edge portion for cutting teeth cutting operation embodiment (see FIG. 101). 3.104 Cutting blade cutterblade That part of the shearing device with respect to the tooth portion made clipboard teeth having shearing motion (see FIG. 101). 3.105 Shearing device cuttingmeans All together with the cutting blade and the shear plate support, which together implement a shearing action. 3.106 Shearing device controller cuttingmeanscontrol By the operator's hand or finger actuator for shearing device operation control means. 3.107 No-load noload Cutting means mounted on the appliance operation at rated voltage. 3.108 Plus pole extensionshaft It means designed to cut grass on the handheld in a standing position so that the operator can cut the rod optional lawn. 3.109 Power switch powerswitch Turning on and off the power, and/or trigger and releasing device on the electrical appliance functions.

4 General requirements

GB 4706.1 of this chapter apply. General conditions for 5 tests GB 4706.1 of this chapter apply. Category 6 In addition to the following provisions, GB 4706.1 of this chapter apply. 6.1 for the change. Grass shears should be Ⅱ Ⅲ class or classes. And checked by inspection of the respective test.

7 Marking and instructions

In addition to the following provisions, GB 4706.1 of this chapter apply. 7.1 Addition. Dash add the following entry. --- address of the manufacturer or origin; --- year of manufacture, expressed in four digits; Add the following new paragraph. The following warning should be placed in a prominent position, expressed as. Warning. read the instruction manual. Warning. Do not expose to moisture. Warning. the shearing device will continue to operate after the motor is turned off. WARNING. Let bystanders away. Mains appliance should be marked with the following. --- If the wire is wound or damaged, unplug. Information signs should draw attention to the dangers associated at the close as possible. This flag should use the official language of appliances sold in the country, or the use of symbols Closing safety icons and symbols Annex AA. If applicable, you may also be used in line with GB/T 4269.1, GB/T 4269.3 and GB 10396 symbol. If applicable, the color of the symbol shall comply with GB/T 4269.1 and/or GB 10396, unless symbols are cast, the projections Or stamped into coloring is not required. The use of a symbol, meaning that should be described in the specification. 7.12 Addition. The Operation Manual is supplied, the manual should include. a) repeating warn those marked on the appliance requirements, where applicable, the need for further explanation. The appliance icon symbol or security standard Out, they should be interpreted function. b) If the appliance is not provided in the form of machine, have a correct description of the tool assembly. c) correct adjustment and maintenance instructions of the appliance. d) is a consumable part, the replacement part number should be predetermined. e) all the instructions of the controller. f) and using the extension line of the relevant type of recommendation (not less than the required 25.7). g) the safe operation of the appliance, preparation, storage and maintenance instructions, as given in Appendix EE examples.

8 Protection against access to live parts

GB 4706.1 of this chapter apply.

9 start electric appliances

GB 4706.1 of this chapter do not apply. Power input and current 10 GB 4706.1 of this chapter do not apply. 11 fever In addition to the following provisions, GB 4706.1 of this chapter apply. 11.4 does not apply. 11.5 for the change. Grass shears in still air to operate in the steady state to the normal operating conditions, the measurement of the applied torque. Holding torque constant voltage to 0.94 times 1.06 times the rated voltage or the rated voltage or the rated voltage range of an average value, taking the most disadvantaged. 11.6 does not apply. 11.7 for the change. To reach steady state operation of the appliance. 12 Void Leakage current and electric strength at the operating temperature of 13 GB 4706.1 of this chapter apply. 14 transient overvoltage GB 4706.1 of this chapter apply. 15 Moisture resistance GB 4706.1 of this chapter apply. 16 Leakage current and electric strength GB 4706.1 of this chapter apply. Overload protection of transformers and associated circuitry 17 GB 4706.1 of this chapter apply. 18 Endurance GB 4706.1 of this chapter make the following change. 18.101 be configured to cut the grass in normal use does not compromise the electrical and mechanical failure comply with this part. Insulation should not be damaged, And a coupling member will not contact the heat, vibration or the like caused by loosening. In addition, the overload protection device should not operate under normal operating conditions. The test is checked by 18.102. Immediately after the test, the appliance withstand the electric strength test as specified in Chapter 16, but the test voltage to 75% of the value. Loose connections should not, and will not affect the safety of normal use damage. 18.102 grass cutting shear means in the horizontal position, no-load operation 15h at 1.1 times the rated voltage, and then to 0.9 times the rated voltage empty Load running 15h. Grass shears can be run several cycles, each cycle of not less than 7h. During the test, the grass cut by the maintenance manual, and allows replacement of the brush. During the test, the overload protection devices shall not operate. 19 Abnormal operation In addition to the following provisions, GB 4706.1 of this chapter apply. 19.7 does not apply. 20 Stability and mechanical hazards In addition to the following provisions, GB 4706.1 of this chapter apply. General requirements 20.101 Grass shears should comply with the safety requirements and/or protective measures. In addition, this part is not involved, the risk of related but important (Example As sharp edge outside cut grass), grass cutting design principles should be GB/T 15706.1's. 20.102 power drive assembly (except the shearing means) All power drive transmission assembly to be protective against an operator touching up during normal operation. Unless otherwise stated in this section, all openings and safety distances shall comply with ISO 13852 4.5.1 and 4.5.3. Checked by inspection and measurement. Shearing device configuration 20.103 Shearing device should be configured to. shear plate the cutting blade teeth projecting teeth activity at least 2mm. Each of the cutting blade/tooth should measure the shear plate Projecting amount (see FIG. 103). 20.104 Hand Protection Housing should be constructed to prevent accidental hand grip grass shears touch the cutting blade. If the handle is configured to cut the grass in front of the handle grip of a thrust surface, and the front end closest to the handle grip of the cutting blade teeth Distance to the root of at least 120mm (see FIG. 104), it is considered to meet the requirements. This distance should be the closest end of the handle grip in front of the cutting edge along the shortest path metric. Checked by inspection and measurement. 21 Mechanical strength In addition to the following provisions, GB 4706.1 of this chapter apply. Change to paragraph 3. The rigid support tool, impact applied to each of three possible weak points on the housing. The impact energy (1.0 ± 0.05) J. Pair of handles, a joystick, operation buttons, and handlebar cutters should be applied to the impact mechanism. General requirements 21.101 For normal use, the grass shears should have sufficient mechanical strength. 21.101.1 and checked by the tests specified in 21.102. 21.101.1 strength and rigidity A complete sample should be cut grass drop three times, in the most severe manner grass shear strength test (see FIG. 105), from it (900 ± 10) mm horizontal high vertical fall smooth concrete surface. When each drop, it should let the grass shears at different locations affected. Using a rope suspended so that the grass shears grass shears obtain the required orientation. Cut the rope so that the cut grass falls in the correct orientation test Related parts. For safe operation of the grass cutting is necessary parts should not fall off, and should not be noticeable cracks. After the test, cut grass does not have to be able to run, but if they can run, then followed the trial, run at maximum speed 30s, Similarly, Grass shears in terms of safe operation are necessary parts should not fall off, and should not be noticeable cracks. 21.102 strength and rigidity of the shearing device Grass shears shearing device should be mounted rigidly and safely withstand the impact of hard objects. The grass cut by the fixed plate or a smooth Concrete surfaces, such that the specimen can more easily enter the shearing device to be tested. A specimen should brass nominal diameter of 15mm (see FIG. 106) having a nominal wall thickness of 1mm, such as GB/T 8890 or other having Comparability of the metal can. The metal pipe should be fixed on a pallet suitable means. Grass shears should be run at maximum speed, and then the brass at a speed of 1m/s shear device is introduced. Grass shears should run continuously until the 15s or The cutting blade is stopped or brass. Part cutting blade or shearing device should be detached, no breakage of the cutting blade are considered to have failed the test. Shear drive means Opposing blade breakage or chipping of the cutting edge should not be considered a test failure. NOTE. This test does not require cutting the grass still available after the test. 22 Construction In addition to the following provisions, GB 4706.1 of this chapter apply. 22.12 Addition. Grass shears should have at least one handle. Each handle should be designed to handle ...

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