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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARDBS EN 50144-2-1 : 1996 The Eur
2、opean Standard EN 50144-2-1 : 1995 has the status of a British Standard ICS 25.140.20; 25.080.40 N No o c co op py yi in ng g w wi it th ho ou ut t B BS SI I p pe er rmmi is ss si io on n e ex xc ce ep pt t a as s p pe er rmmi it tt te ed d b by y C Co op py yr ri ig gh ht t L La aw w Safety of hand
3、-held electric motor operated tools Part 2-1. Particular requirements for drills Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was publis
4、hed under the authority of the Standards Board and comes into effect on 15 August 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee reference CPL/61/6 Draft for comment 92/33572 DC ISBN 0 580 24913 1 BS EN 50144-2-1 : 1996 Amendments issued since publication A
5、md. No.DateText affected Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee CPL/61, Safety of electrical appliances, to Subcommittee CPL/61/6, Portable motor-operated tools, upon which the following bodies were represented:
6、Agricultural Engineers Association Association of Control Manufacturers (TACMA (BEAMA Ltd.) Association of Manufacturers Allied to the Electrical and Electronic Industry (BEAMA Ltd.) Association of Manufacturers of Domestic Electrical Appliances Consumer Policy Committee of BSI Consumers Association
7、 Department of Trade and Industry (Consumer Safety Unit, CA Division) Electricity Association Health and Safety Executive Hire Association Europe Institution of Incorporated Executive Engineers Portable Electric Tool Manufacturers Association Rotating Electrical Machines Association (BEAMA Ltd.) Co-
8、opted members Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI i BS EN 50144-2-1 : 1996 Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 50144-2-13 Licensed Copy: sheffieldun sheffieldun, na, Mon
9、 Nov 06 06:41:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii BS EN 50144-2-1 : 1996 National foreword This British Standard has been prepared by Subcommittee CPL/61/6 and is the English language version of EN 50144-2-1 : 1995 Safety of hand-held electric motor operated tools Part 2-1: Particular r
10、equirements for drills, incorporating corrigendum March 1996, published by the European Committee for Electrotechnical Standardization (CENELEC). It is to be read in conjunction with BS EN 50144-1 : 1996 General requirements, which it supplements or modifies. The many references to Part 1 should be
11、read as references to BS EN 50144-1 : 1996 which is the English language version of EN 50144-1 : 1995. The foreword of EN 50144-2-1 makes reference to the Date of withdrawal, dow, of the relevant national standard. In this case the relevant national standard is BS 2769 : Section 2.1 : 1996 which wil
12、l be withdrawn on 1 December 1996 in accordance with the CENELEC Internal Regulations. Reference is also made to the application of CENELEC Memorandum 6 with regard to certification. Attention is drawn to Note 7 to Memorandum 6 which states: The use of the certificate or mark licence in the running
13、production may not go on for more than 60 months after dow. This should allow necessary changes in the production line and to use up supplies. Within the established period after dow the certificates and mark licences will have to be reconsidered and cancelled or reissued. For tools intended to be u
14、sed in locations where special conditions prevail, as in ships and vehicles, and in hazardous locations, for example, where explosions are liable to occur, requirements additional to those specified in the standard may be necessary. WARNING. This standard calls for test procedures that may be injuri
15、ous to safety or health if adequate precautions are not taken when conducting tests. Product certification. Attention is drawn to the fact that products conforming to this British Standard may be approved by BSI Product Certification, and that such certification may be used for the purposes of parti
16、cipation in the CENELEC Certification Agreement. (Details of the BSI certification mark are given on the inside back cover.) Compliance with a British Standard does not of itself confer immunity from legal obligations. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:04 GMT+00:00 2006, U
17、ncontrolled Copy, (c) BSI CENELEC European Committee for Electrotechnical Standardization Comite Europe en de Normalisation Electrotechnique Europa isches Komitee fu r Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC members Ref. N
18、o. EN 50144-2-1 : 1995 E EUROPEAN STANDARDEN 50144-2-1 NORME EUROPE ENNE EUROPA ISCHE NORM April 1995 ICS 25.140.20; 25.080.40Supersedes HD 400.2A S1 : 1980 and its amendment Incorporates corrigendum March 1996 Descriptors: Hand-held electric motor operated tools, drills, safety requirements, protec
19、tion against electric shocks, fire protection, protection against mechanical hazards English version Safety of hand-held electric motor operated tools Part2-1: Particular requirements for drills Se curite des outils e lectroportatifs a moteur Partie 2-1: Re gles particulie res pour les perceuses Sic
20、herheit von handgefu hrten motorbetriebenen Elektrowerkzeugen Teil 2-1: Besondere Anforderungen fu r Bohrmaschinen This European Standard was approved by CENELEC on 1994-10-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thi
21、s European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official version
22、s (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Au
23、stria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 50144-2-1
24、 : 1995 BSI 1996 Foreword This European Standard has been prepared by Technical Committee CENELEC TC 61F, Hand-held and transportable electric motor operated tools. The text of the draft was submitted to the Unique Acceptance Procedure (UAP) in December 1993 and was approved by CENELEC as EN 50144-2
25、-1 on 1994-10-04. A draft for an amendment was submitted to the Unique Acceptance Procedure in April 1994 and was approved by CENELEC on 1994-10-04 for inclusion into the European Standard. This European Standard replaces HD 400.2A S1 : 1980 + A1 : 1994. The following dates were fixed: latest date b
26、y which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1995-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1996-12-01 As far as certification is concerned, CENELEC Memorandum
27、6 applies. This standard is divided into two parts: Part 1: General requirements, comprising clauses of a general character. Part 2: Particular requirements, dealing with particular types of applicances. The clauses of these particular requirements supplement or modify the corresponding clauses in P
28、art 1. Where the text of Part 2 indicates addition or replacement, the relevant text of Part 1 is to be adapted accordingly. Where no change is necessary, the words This clause of Part 1 is applicable are used. Subclauses, tables and figures which are additional to those in Part 1 are numbered start
29、ing from 101. NOTE. In this standard the following print types are used: Requirements proper. Test specifications. Explanatory matter. Contents Page 1Scope3 2Definitions3 3General requirements3 4General conditions for the tests3 5Rating3 6Classification3 7Marking3 8Protection against electric shock3
30、 9Starting3 10Input and current3 11Heating3 12Leakage current3 13Environmental requirements3 14Moisture resistance4 15Insulation resistance and electric strength4 16Endurance4 17Abnormal operation4 18Mechanical hazards4 19Mechanical strength5 20Construction5 21Components6 22Internal wiring6 23Supply
31、 connection and external flexible cables and cords6 24Terminals for external conductors6 25Provision for earthing6 26Screws and connections6 27Creepage distances, clearances and distances through insulation7 28Resistance to heat, fire and tracking7 29Resistance to rusting7 30Radiation7 Figures 101 A
32、pplication of load7 102 Testing apparatus for impact drills8 Annexes10 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 50144-2-1 : 1995 BSI 1996 1 Scope This clause of Part 1 is applicable except as follows: 1.1 Addition: This stan
33、dard applies to drills and impact drills. 2 Definitions This clause of Part 1 is applicable except as follows: 2.2 Replacement: 18. normal load The load obtained when the drill, placed in the horizontal position, is operated continuously, the torque applied to the spindle being such that the output,
34、 in watts, is equal to 15D, where D is: a) for drills delivered with a chuck, the maximum diameter, in millimetres, of the bit marked on the chuck; b) for other drills, the maximum diameter, in millimetres, of the bit for drilling in steel marked on the drill. NOTE. The normal load is based on the r
35、ated voltage or on the upper limit of the rated voltage range. 3 General requirements This clause of Part 1 is applicable. 4 General conditions for the tests This clause of Part 1 is applicable except as follows: 4.8 Addition: In the case of drills having electronic speed changing devices allowing t
36、he setting of different speed ranges, the test is made at the maximum speed setting of the lowest speed range. Mechanical speed changing devices shall be set at the lowest speed. 5 Rating This clause of Part 1 is applicable. 6 Classification This clause of Part 1 is applicable. 7 Marking This clause
37、 of Part 1 is applicable except as follows: 7.1 Additions: Drills shall be marked with: rated no-load speed in revolutions per minute. maximum diameter, in millimetres, of the bit for drilling in steel having a tensile strength of 390 N/mm2. 8 Protection against electric shock This clause of Part 1
38、is applicable. 9 Starting This clause of Part 1 is applicable. 10 Input and current This clause of Part 1 is applicable. 11 Heating This clause of Part 1 is applicable except as follows: 11.2 Replacement: The drill is operated continuously in still air at a voltage equal to 0,94 times rated voltage,
39、 1,00 rated voltage or 1,06 times rated voltage, whichever is the most unfavourable. The torque applied to the spindle is such that the output, in watts, is equal to 12D, where D is: for drills delivered with a chuck, the maximum diameter, in millimetres, of the bit for drilling in steel marked on t
40、he chuck; for other drills, the maximum diameter, in millimetres, of the bit for drilling in steel marked on the drill. If, however, the rated input exceeds the input measured during the test of subclause 10.1 , the test is made with a torque equal to 0,8 times the torque necessary to attain rated i
41、nput. The voltage is then adjusted to the value specified, the torque being kept constant while the voltage is adjusted. 12 Leakage current This clause of Part 1 is applicable. 13 Environmental requirements This clause of Part 1 is applicable, except as follows: 13.2.2 Replacement of paragraph 2: Fo
42、r drills without impact mechanism all speed setting devices shall be adjusted to the highest figure. For impact drills the speed setting shall be that recommended by the manufacturer for an 8 mm bit drilling into concrete. 13.2.3 Replacement of paragraphs 1, 2 and 3: Drills without impact mechanism
43、are tested at no-load. Impact drills are tested under load as shown in figure 101 and in accordance with the conditions shown in tables 101 and 102. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 06:41:04 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 50144-2-1 : 1995 BSI 1996 Table 10
44、1 Test conditions OrientationDrilling vertically downwards into concrete block as specified in table 102 with dimensions 500 mm 3 500 mm 3 200 mm supported on resilient material Tool bit8 mm drill bit for drilling in concrete with a useable length of approximately 100 mm Feed force150 N30 N Test cyc
45、leMeasurement starts when drill bit has reached a depth of 10 mm and stops when the depth has reached 80 mm approximately Table 102 Concrete formulation (per cubic metre) CementWaterAggregate 1450 kg Particle sizeFraction (%) 450 kg220 kg0 to 0,25 mm123 0 to 0,50 mm505 0 to 1,00 mm805 0 to 4,00 mm10
46、0 Compressive strength after 28 days to be 40 N/mm2. 13.3 Addition: Drills without impact mechanism are not tested, the vibration level to be quoted as being less than 2,5 m/s2. 13.3.4 Replacement of paragraph 2: The speed setting shall be that recommended by the manufacturer for an 8 mm bit drillin
47、g into concrete. 13.3.7 Replacement of paragraph 1: Impact drills are tested under load as shown in figure 101 and in accordance with the conditions shown in tables 101 and 102. Paragraph 3 is not applicable. 14 Moisture resistance This clause of Part 1 is applicable. 15 Insulation resistance and el
48、ectric strength This clause of Part 1 is applicable. 16 Endurance This clause of Part 1 is applicable except as follows: 16.2 Replacement: Impact drills are operated continuously with no load and, if the impact mechanism can be engaged and disengaged at will, with the impact mechanism not engaged, f
49、or 12 h, at a voltage equal to 1,1 times rated voltage and then for 12 h at a voltage equal to 0,9 times rated voltage. The speed is adjusted to the highest value of the highest range. The drill is then mounted, in the vertical position, in an apparatus as shown in figure 102, and is operated at rated voltage or at the mean value of the rated voltage range, for four periods of 6 h each, the interval between these periods being at least 30 min and, if the impact mechanism can be engaged and disengaged at will, with the impact mechanism en
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