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GB 3883.7-2012: [GB/T 3883.7-2012] Safety of hand-held motor-operated electric tools -- Part 2: Particular requirements for hammers
Status: Valid GB 3883.7: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 3883.7-2012 | English | 419 |
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[GB/T 3883.7-2012] Safety of hand-held motor-operated electric tools -- Part 2: Particular requirements for hammers
| Valid |
GB 3883.7-2012
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| GB 3883.7-2005 | English | 599 |
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Safety of hand-held motor-operated electric tools -- Part 2: Particular requirements for hammers [including MODIFICATION 1]
| Obsolete |
GB 3883.7-2005
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| GB 3883.7-1991 | English | 239 |
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Safety of hand-held motor-operated electric tools--Part 7: Particular requirements for electric hammers
| Obsolete |
GB 3883.7-1991
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PDF similar to GB 3883.7-2012
Basic data | Standard ID | GB 3883.7-2012 (GB3883.7-2012) | | Description (Translated English) | [GB/T 3883.7-2012] Safety of hand-held motor-operated electric tools -- Part 2: Particular requirements for hammers | | Sector / Industry | National Standard | | Classification of Chinese Standard | K64 | | Classification of International Standard | 25.140.20 | | Word Count Estimation | 16,189 | | Older Standard (superseded by this standard) | GB 3883.7-2005 | | Quoted Standard | GB/T 2423.55-2006; GB/T 4207-2003; GB 4208-2008; GB 4706.1-2005; GB/T 4956-2003; GB 5013.4; GB 5023.5; GB/T 5465.2-1996; GB/T 6462; GB 8898-2001; GB 9364.1; GB/T 11021; GB/T 11918-2001; GB/T 11919-2001; GB 13140.3; GB/T 14472; GB 14536.1-2008; GB 15092.1- | | Adopted Standard | IEC 60745-2-6-2008, 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 relates to a motor or solenoid driven AC single-phase and DC rated voltage not exceeding 250V, three-phase AC rated voltage not exceeding 440V handheld electric tools. If applicable, the part of the people involved in the normal use | GB 3883.7-2012: [GB/T 3883.7-2012] Safety of hand-held motor-operated electric tools -- Part 2: Particular requirements for hammers
---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 hand-held motor-operated electric tools.Part 2. Particular requirements for hammers
ICS 25.140.20
K64
National Standards of People's Republic of China
Replacing GB 3883.7-2005
Safety of hand-held power tools
Requirements for hammers tools. Part 2
Part 2. Particularrequirementsforhammers
(IEC 60745-2-6.2008Ed2.2, Hand-heldmotor-operatedelectric
tools-Safety-Part 2-6. Particularrequirementsforhammers, IDT)
Published 2012-11-05
2013-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative References 1
Terms and definitions 1 3
4 General Requirements 1
Test 5 1 General Requirements
6 Void 1
Category 1 7
8 signs and instructions 2
9 is protected to prevent access to live parts 2
10 is started 2
11 Power input and current 2
12 heat 2
13 leakage current 2
14 moisture resistance 2
15 3 Electric strength
16 and its associated circuitry to the transformer overload 3
17 Endurance 3
18 upset 3
19 mechanical hazards 3
20 mechanical strength 4
21 Structure 4
Internal wiring 22 4
5 23 components
Power source 24 and the coupling extension cord 5
Terminal 25 of the outer lead 5
5 grounding device 26
The coupling member 5 and the screw 27
28 creepage distance and clearance distance through insulation 5
29 in heat resistance, flame retardancy and resistance to tracking 5
30 rust 5
31 radiation, toxicity and similar hazards 5
Appendix 9
Annex K (normative) tool battery and the battery case 9
Annex L (normative) providing a non-isolated power source coupled to the battery and battery box tool 9
Reference 10
Foreword
All technical contents of this section is mandatory.
GB 3883 "Safety of hand-held electric tools" is the safety standard for hand-held power tools from Part 1 General requirements and
Requirements for Part 2 composition. GB 3883 composition "safe hand-held electric tools" are as follows.
--- GB 3883.1 "The first part of the security hand-held power tools. General requirements"
--- GB 3883.2 "Safety - Part 2 hand-held power tools. screwdrivers and impact wrenches."
--- GB 3883.3 "safe hand-held electric tools Part II. grinders, polishers and disc sanders requirements"
--- GB 3883.4 "Safety of hand-held electric tools Part 2. Non-disc sanders and polishers other special requirements"
--- GB 3883.5 "The second part of the security hand-held power tools. circular saws"
--- GB 3883.6 "Safety - Part 2 hand-held power tools. electric drills and impact drills requirements"
--- GB 3883.7 "Safety handheld power tool Part 2. requirements for hammers tool"
--- GB 3883.8 "Safety of hand-held electric tools Part 2. Particular requirements for electric shears and of"
--- GB 3883.9 "Safety - Part 2 hand-held power tools. tappers requirements"
--- GB 3883.10 "safe hand-held electric tools Part II. Particular requirements for planers"
--- GB 3883.11 "handheld power tool safety Part 2. reciprocating saws (jig, saber saws) special requirements"
--- GB 3883.12 "Safety - Part 2 hand-held power tools. Particular requirements for concrete vibrators"
--- GB 3883.13 "the second part of the security hand-held power tools. non-flammable liquid spray guns for special requirements"
--- GB 3883.14 "the second part of the security hand-held power tools. Particular requirements for chain saws."
--- GB 3883.15 "the second part of the security hand-held power tools. pruning shears requirements"
--- GB 3883.16 "safe hand-held electric tools Part II. Particular requirements for tackers"
--- GB 3883.17 "the second part of the security hand-held power tools. routers and trimmers special requirements"
--- GB 3883.18 "the second part of the security hand-held power tools. Particular requirements for marble cutters"
--- GB 3883.19 "safe hand-held electric tools Part 2. Particular requirements for drain cleaners."
--- GB 3883.20 "Safety - Part 2 hand-held power tools. requirements for strapping"
--- GB 3883.21 "Safety - Part 2 hand-held power tools. band saws"
--- GB 3883.22 "Safety handheld power tool of the second part. the requirements for slotter"
This section GB 3883 Part 2. Particular requirements for hammer tools.
This section drafted in accordance with the rules GB/T 1.1-2009 given.
This partial replacement GB 3883.7-2005 "secure a second portion of the hand-held power tool. hammer requires special tools", and
GB 3883.7-2005 comparison, the main changes are as follows.
--- In "signs and instructions", add details about security warnings (see 8.12.1.1);
--- In the "mechanical strength", the change 20.3,20.5;
--- modified appendix K, Appendix L;
--- scope, 3.101,3.102,3.103,8.1,12.4,17.2,19.101,19.102,21.18,24.4, FIG. 103 editorial
modify.
This section uses the translation method identical with IEC 60745-2-6.2008 (2.2 version) "Safety - Part 2-6 hand-held power tools.
Requirements for hammers tool "and equivalents employed 60745-1 IEC .2006 (Version 4.0)" The first part of the security hand-held power tools. pass
With the requirements "established by GB 3883.1-2008" The first part of the security hand-held power tools. General requirements "used together.
This section states that "suitable", showing the corresponding provisions applicable in GB 3883.1-2008; stated in this section, "Change", and should
In this section prevail provisions; stated in this section, "Edit", and indicates the corresponding provision of GB 3883.1-2008 content should be present
The modification is part of the subject, and the provision of other content still apply; this states "addition", expressed in addition to satisfying
GB 3883.1-2008 outside the corresponding provision of this section shall comply with the added provision.
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 drafter. Pan Shunfang, Libang Association, according to Li, Liu Jiang.
Previous versions of this part of the case released.
--- GB 3883.7-1985, GB 3883.7-1991, GB 3883.7-2005.
Safety of hand-held power tools
Requirements for hammers tools. Part 2
1 Scope
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
increase.
This section applies to a hammer type tools.
This section relates to the tools include, but are not limited to the hammer, hammer, hammer drill.
2 Normative references
This chapter GB 3883.1-2008 is applicable.
3 Terms and Definitions
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
Increased definition.
3.101
Hammer percussionhammer
That has the hammer tool hammer mechanism is not affected by the operator.
3.102
Hammer rotaryhammer
That has the hammer mechanism is not affected by the operator, while the rotation of the tool having a hammer function.
3.103
Hammer drill rotaryhammerwith "drilonlymode"
When the hammer mechanism is disengaged, the rotation operation can only be hammer.
4 General requirements
This chapter GB 3883.1-2008 is applicable.
General requirements Test 5
This chapter GB 3883.1-2008 is applicable.
6 Void
Category 7
This chapter GB 3883.1-2008 is applicable.
8 signs and instructions
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
8.1 Addition.
After the first four dashes increase.
--- place of origin;
8.12.1.1 increase.
Hammer tool safety warnings.
--- Wear ear. Exposure to noise can cause hearing loss.
--- auxiliary tools provided with a handle. Operating missed cause personal injury.
--- may touch the cutting accessory or the cord itself dark lines at the operation, the tool should be gripped by gripping an insulating surface. cut
Annex encountered charging cut metal parts exposed live conductors putting the tool so that an operator receiving an electric shock.
9 protection against contact with live parts
This chapter GB 3883.1-2008 is applicable.
10 start
This chapter GB 3883.1-2008 is applicable.
Power input and current 11
This chapter GB 3883.1-2008 is applicable.
12 fever
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
12.4 for the change.
Intermittent operation tool 30 cycles or until thermally stable, whichever is reached first by. Each cycle consists of continuous operation of 30s and 90s
Off rest of the composition. During operation of the load adjusting means to reach the rated input power or nominal current dynamometer by this time, the peening machine
Removal or disengagement configuration, the temperature rise is measured at the end of the "on." The manufacturer should select, continuous operation tool can reach a thermally stable state.
Housing temperature rise limits specified not apply to the housing of the hammer mechanism.
Leakage current 13
This chapter GB 3883.1-2008 is applicable.
14 moisture resistance
This chapter GB 3883.1-2008 is applicable.
Electrical strength 15
This chapter GB 3883.1-2008 is applicable.
Overload protection circuit 16 and its associated transformer
This chapter GB 3883.1-2008 is applicable.
17 Endurance
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
17.2 for the change.
Hammer drill hammer disengaging mechanism 12h load running at 1.1 times the rated voltage, no-load operation and then 12h at 0.9 times rated voltage.
Each operating cycle comprises a 100s "ON" of 20S and a "stop off" period, power dwell period comprising a predetermined running time
Intra.
During the test, at each voltage, the tool is placed in three different orientations, the running time for each position of the tool about 4h.
Note. Changing the position to prevent toner does not accumulate to any particular part of the normal. Three exemplary positions of horizontal, vertically upward, vertically downward.
Hammer tool is vertically mounted on the test apparatus 103 shown in FIG, and the rated voltage or the rated voltage range of the average, each run four
A run-6h, the interval between each run at least 30min.
In these tests, the tool for intermittent operation, each operating cycle running off from the 30s and 90s of the rest of the composition.
During the test, an axial force is applied to ensure stable operation of the hammer mechanism for a hammer tools elastomer.
If any part of the tool temperature exceeds a certain temperature rise during the test 12.1, forced cooling may be employed, or stop it. The rest
Time is not included in the specified operating time.
During these tests, the overload protection devices shall not operate.
Available not installed in the tool to switch on and off the tool.
During the test, allowing replacement of the brushes, and the like that oil and grease applied to the tool in normal use.
If the hammer mechanism mechanical failure during the test, but did not result in charging accessible parts, is allowed to replace a new hammering
mechanism.
18 abnormal operation
This chapter GB 3883.1-2008 is applicable.
19 mechanical hazards
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
increase.
When 19.101 drill chuck key should be designed so that when the key is released, it is easy from the original position.
This does not exclude a clamping device, the key is not in use is fixed in place, but not fixed in the flexible cable or
Metal clip line.
Checked by inspection and manual test.
The key is inserted into a drill chuck, not tightened, so that the tool flip down key, the key should be dropped.
19.102 Static stalling torque force at hand should not be too large.
By the following test test.
In the cold state, the output shaft of the locking tool measuring static trip or stall torque moment (MR).
The tool with the rated voltage, mechanical gear shift stage to the lowest speed, the electronic governor is adjusted to the maximum speed value, the switch means is placed
In the full "on" position. The average value of the measured torque and the corresponding maximum 101 should Calcd (MRmax) is not greater than 102 as shown in FIG.
20 Mechanical strength
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
20.3 for the change.
Of less than or equal to 10kg hammer tool should be able to withstand three drops from 1m high impact to the concrete surface. Three times this fall,
Three sample should test the most unfavorable position, and the lowest point of the tool should be located at 1m above the concrete surface. When the test is not installed separable
Accessories.
Over 10kg hammer type tools to withstand the fall times of the striking surface of the concrete. At this time, the hammer tool mounted recommended by the manufacturer
Up attachments, but if longer than the recommended accessories 1m, 1m are mounted on the attachment length. Placed in vertical position the tool, the tip attachment parked
Concrete surface, followed by the tool in three different directions, fall on the concrete surface.
20.5 for the change.
Hammer tool is considered to be a drilling tool is easy to dark lines or cord itself, therefore, as a predetermined specification, and the grip handle
Surface should have sufficient mechanical strength to provide insulation between the gripping region and the output shaft.
Checked by the following tests.
A separate sample, according to the discretion of the manufacturer, is subjected to a collision in each handle and the gripping face of the recommendation.
For 10kg and below the hammer tool, performed by a drop impact test from 1m high concrete surface.
For more than 10kg hammer tools, impact test performed by the tool falling concrete surface. Hammer means mounted on the push Manufacturer
The maximum recommended accessories do fall test, but if the recommended accessories longer than 1m, it is fitted with accessories 1m long.
Chapter 15 immediately subjected to electric strength after impact test, is applied between the gripping surface of the wrapping foil and the tool output shaft
1250V AC voltage.
21 structure
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
21.18 Addition.
And operating the hammer hammer hammer mode switch may have a locking mechanism to lock the switch in the "on" position. For these workers
With, can be locked in the switch should not release the grip of the tool can be automatically released by a single action.
Checked by inspection and manual test.
For the hammer drill, such as a locking means for turning on the switch, the locking means should be placed outside gripping surface, or designed to not be left operator
Hand or right hand accidentally locked operation. The finger gripping surface when the tool is placed on the switch actuator member, the contact surface between the hand and the tool.
The following is checked by inspection or testing.
Locking means having a switch on the inside surface of the grip, when the straight edges and forth across the test with the locking means in any direction, the apparatus does not
It should be a straight edge with the test actuator. May be a straight edge across the test with the locking means and the peripheral surface of the locking means has a surface having a sufficient length test.
Internal wiring 22
This chapter GB 3883.1-2008 is applicable.
23 components
This chapter GB 3883.1-2008 is applicable.
24 and the external power supply cord coupling
In addition to the following provisions, GB 3883.1-2008 of this chapter apply.
24.4 for the change.
Replace the first paragraph, the following provisions shall apply.
The lightest cable that can be used to.
--- heavy cable sheath neoprene or other equivalent properties (GB/T 5013.4 of 60245IEC 66YCW).
The outer lead terminals 25
This chapter GB 3883.1-2008 is applicable.
Grounding device 26
This chapter GB 3883.1-2008 is applicable.
The coupling member 27 with a screw
This chapter GB 3883.1-2008 is applicable.
28 creepage distance and clearance distance through insulation
This chapter GB 3883.1-2008 is applicable.
29 in heat resistance, flame retardancy and resistance to tracking
This chapter GB 3883.1-2008 is applicable.
30 rust
This chapter GB 3883.1-2008 is applicable.
31 Radiation, toxicity and similar hazards
This chapter GB 3883.1-2008 is applicable.
Single handle support 101 of FIG.
FIG handle support 102 pairs
In millimeters
Description.
1 --- synthetic rubber disk or a material having similar characteristics, a Shore hardness of 70 to 80, and a thickness of 10mm, 75mm diameter;
2 --- loaded with the tool handle, polyamide lined with a yoke;
3 --- Sample;
To Sample 4 --- urging mechanical and pneumatic spring;
5 --- Impact head;
6 --- hardened steel ball diameter of 38mm;
7 --- quality M2, a diameter D of hardened steel plate, a bottom surface with a groove, as shown in FIG;
8 --- synthetic rubber plate, a Shore hardness of 70 to 80, and a thickness (6 ~ 7) mm, with pocket tight fit;
--- steel base. 9 mass M1, and has thereon a 1mm diameter than the large circular steel plate cavity, the bottom hole with a groove, as shown in FIG;
10 --- set up on the basis of compacted concrete foundation;
11 --- prevent any horizontal displacement of steel columns;
12 --- polished surfaces and edges.
When submitting tool, if necessary, the application may provide adequate impact head and a shank, the total mass of less than a predetermined value table 101 to ensure the stability of the hammer means
run.
Table 101
Rated input power tools
Diameter steel plate
mm
The center of the pitch of the grooves
mm
M1
Quality steel base
kg
M2
Quality steel plate
kg
M3
Impact head and shank of the total mass
kg
≤700 100 6.5 90 1.0 0.7
> 700 and ≤1200 140 5.75 180 2.25 1.4
> 1200 and ≤1800 180 5.0 270 3.8 2.3
> 1800 and ≤2500 220 4.5 360 6.0 3.4
FIG hammer tool 103 test device
appendix
Except as follows, GB 3883.1-2008 Appendix applicable.
Appendix K
(Normative)
Tool battery and battery box
K.1 increase.
Unless otherwise provided in this appendix, all applicable requirements of chapter dedicated.
K.8.12.1.1 change as follows.
--- Wear ear. Exposure to noise can cause hearing loss.
--- auxiliary tools provided with a handle. Operating missed cause personal injury.
--- When the cutting insert dark lines may touch operation, the tool should be gripped by gripping an insulating surface. The cutting insert meet live conductors
Line causes the exposed metal parts tool operator so that the charging electric shock.
K.12.4 special requirements of that section do not apply.
K.17.2 special requirements of that section do not apply.
K.24.4 special requirements of that section do not apply.
Appendix L
(Normative)
Power source coupled to provide non-isolated tool battery and battery box
L.1 increase.
Unless otherwise provided in this appendix, all applicable requirements of chapter dedicated.
references
GB 3883.1-2008 references apply.
6-2-54706
CEI /
2102-
7.3883
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