GB 3883.6-2012Safety of hand-held motor-operated electric tools -- Part 2: Particular requirements for drills and impact drills (English PDF)

Foreword

All technical contents of this section is mandatory.

GB 3883 "Safety of hand-held electric tools" are safety standards for hand-held power tools, by General requirements - Part 1 and 2 Part requirements for the 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. impact drills and drill requirements.

This section drafted in accordance with the rules GB/T 1.1-2009 given.

This partial replacement GB 3883.6-2007 "Safety handheld power tool of the second part. impact drills and drill requirements", Compared with GB 3883.6-2007, the main changes are as follows.

--- In "signs and instructions", add details about security warnings (see 8.12.1.1);

--- In the "Components", change 23.3;

--- modified appendix K, Appendix L;

--- for 3.102,8.1,12.3,17.2,19.1,19.101,21.18, 101 editorial changes.

This section uses the translation method identical with IEC 60745-2-1:2008 (2.1 version) "Safety - Part 2-1 hand-held power tools.

Drills and impact drills requirements ", and identical with IEC 60745-1:2006 (version 4.0)" safety first hand-held power tools Part I. General 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.

This section replaces the following previously issued as follows.

--- GB 3883.6-1985, GB 3883.6-1991, GB 3883.6-2007.

Safety of hand-held power tools Part 2. Particular requirements for drills and impact drills

1 Scope

In addition to the following provisions, GB 3883.1-2008 of this chapter apply.

increase.

This section applies to drills and impact drills.

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

Drill dril

A specially designed tool in a variety of materials such as metal, plastic, wood, etc. for drilling.

3.102

Impact drill impactdril A specially designed tool for drilling in concrete, masonry and similar materials. Its shape and structure is similar to the drill, but a Built-impact mechanism, so as to generate an axial rotation of the output shaft impact movement.

It can not have a means to make the operation of the impact mechanism, for use as a drill.

4 General requirements

This chapter GB 3883.1-2008 is applicable.

General requirements Test 5 in addition to the following provisions, GB 3883.1-2008 of this chapter apply.

5.5 Addition.

For both the mechanical means for setting different speed range, but also within a given range for the conditioning electronics speed drill, the mechanical device is adjusted to the lowest possible speed range, the electronic device and the adjusting value given to the highest speed range.

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;

Drills and impact drills shall be marked with the following.

--- rated load speed, min-1 or r/min;

--- maximum holding ability, in millimeters (mm).

8.12.1.1 increase.

Security epigram.

--- To Wear ear when using impact drills. Exposure to noise can cause hearing loss.

Note. The above aphorism applies only to impact drill, drill to be ignored.

--- auxiliary tools provided with a handle. Operating missed cause personal injury.

--- may touch or itself when the dark line of the cord is operated in the drilling attachment, holding the tool to be gripped by an insulating surface.

Drilling attachment metal fitting encountered charged by the charging wire exposed so that the tool will operator 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.

12.2 increase.

Drill torque impact mechanism (if any) is disengaged in the case of continuous operation, this time applied to the input of the main shaft reaches the rated power or the amount of 80% of the required torque constant current.

12.3 increase.

Housing temperature rise limits specified not apply to the housing impact 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 pairs of impact drill for the change.

Impact drill no-load operation, if the impact mechanism can be closed and released, it will impact mechanism is disengaged, running at 1.1 times the rated voltage 12h, 12h and then run at 0.9 times the rated voltage. At this time, the rotational speed is adjusted to the highest value of the maximum speed range.

Each operating cycle comprises 100s "on period" and 20S "off dwell period" off dwell period included in the predetermined operating time.

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.

During the test, replace the brush and allow normal use of fuel and grease lubrication.

Available not installed in the tool switch on and off the tool.

Impact drill vertically mounted on the test apparatus 101 shown in FIG, 4 do average 6h at rated voltage or the rated voltage range During operation, there is at least a 30min rest period between the two during operation; if the impact mechanism can be closed and released, will impact mechanism Close up.

During these tests, impact drill intermittent operation, each cycle consists of 30s and 90s run-off rest period.

During the test, just applying an axial force to ensure stable operation of the impact mechanism of the impact drill through a resilient member.

If the impact mechanism mechanical failure during the test, but did not lead to accessible live parts, you can replace a new impact mechanism.

During the test, the overload protection devices shall not operate.

Note 1. The external temperature monitoring helps avoid mechanical failure.

Note 2. as to prevent any change in position of specific parts have abnormal accumulation of toner. E.g. horizontal, vertical upward and downward three vertical positions.

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.

19.1 Addition.

When drilling 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, so will not A key secured in position, but not the use of metal clip is fixed in the flexible cable or cord.

Checked by inspection and manual test.

Inserting the key into the drill chuck, not tightened, so that the tool flip down key, the key should be dropped.

19.101 Static stalling torque effect should not be too large in the hands of the forces.

It is checked by the following 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 is not greater than the maximum value corresponding to FIG. 103, 102 shown in Fig.

20 Mechanical strength

This chapter GB 3883.1-2008 is applicable.

21 Structure

In addition to the following provisions, GB 3883.1-2008 of this chapter apply.

21.18 Addition.

The switch means has the on-lock, the locking means should be placed outside gripping surface, or an operator is not designed to be left or right hand operation Accidentally locked for. 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

In addition to the following provisions, GB 3883.1-2008 of this chapter apply.

23.3 for the change.

Unless the tool with the "on" position can not be locked instantaneous switching, overload protection means should be non-automatic reset type.

Checked by inspection.

24 and the external power supply cord coupling this chapter GB 3883.1-2008 is applicable.

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.

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.

NOTE. When submitting a tool, if necessary, the application may provide adequate impact head and a shank, the total mass of less than a predetermined value table 101 in order to ensure stability of the hammer mechanism Given 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 Test apparatus 101 of FIG.

FIG single handle 102 supporting the reaction torque

FIG handle support 103 pairs reaction torque

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 third dash for the change.

--- When drilling attachment dark lines may touch operation, the tool should be gripped by gripping an insulating surface. Drilling attachment encountered live conductors Line causes the exposed metal parts tool operator so that the charging electric shock.

K.12.3 change as follows.

Article in this section does not apply.

K.17.2 change as follows.

Article in this section does 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.

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CEI /

2102-

6.3883