1、BRITISH STANDARD BS3999-17: 1993 IEC1214:1993 Methods of Measuring the performance of household electrical appliances Part17: Hand-held mains voltage operated spray gunsBS3999-17:1993 This British Standard, having been prepared under the directionof the Light Electrical Engineering Standards Policy
2、Committee, was published underthe authority of the Standards Board and comes intoeffect on 15September1993 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference LEL/59 Draft for comment87/30821 DC ISBN 0 580 22272 1 Committees responsible for this British
3、Standard The preparation of this British Standard was entrusted by the Light Electrical Engineering Standards Policy Committee (LEL/-) to Technical Committee LEL/59, upon which the following bodies were represented: Association of Manufacturers of Domestic Electrical Appliances Consumer Policy Commi
4、ttee of BSI Consumers Association Department of Trade and Industry (Electricity Division) Electricity Association Portable Electric Tool Manufacturers Association Rotating Electrical Machines Association (BEAMA Ltd.) Amendments issued since publication Amd. No. Date CommentsBS3999-17:1993 BSI 10-199
5、9 i Contents Page Committees responsible Inside front cover National foreword ii Section 1. General 1.1 Scope 1 1.2 Normative references 1 Section 2. Definitions 2.1 Terms used to designate the hand-held electric tool 1 2.2 Terms used to designate the characteristics of spray guns 1 Section 3. Gener
6、al notes on measurements 3.1 List of measurements 1 3.2 General conditions for measurements 2 Section 4. Methods of measurement 4.1 Input under load 2 4.2 Maximum delivery capacity 2 4.3 Viscosity performance 2 4.4 Volume of the container 2 4.5 Maximum pressure 3 4.6 Main dimensions 3 4.7 Mass 3 4.8
7、 Flexible cord length 3 4.9 Stability 3 4.10 Reliability test 3 4.11 Noise level 3 Figure 1 Spray-gun (dimensions) 4 List of references Inside back coverBS3999-17:1993 ii BSI 10-1999 National foreword This Part of BS3999 has been prepared under the direction of the Light Electrical Engineering Stand
8、ards Policy Committee. It is identical with IEC1214:1993 Hand-held mains voltage operated spray guns Performance requirements, published by the International Electrotechnical Commission (IEC). Safety requirements for spray guns are covered by BS2769 Hand-held electric motor-operated tools Section2.7
9、:1984 Specification for spray guns. Cross-references. The Technical Committee has reviewed the provisions of IEC160:1963 and IEC745-2-7:1989, to which normative reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A British Standard does
10、not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside
11、 front cover, pagesi andii, pages1 to4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS3999-17:1993 BSI 10-1999 1 Section 1. General 1.1 Sco
12、pe This International Standard applies to hand-held mains electric motor-operated spray guns with integral containers and motors, which can be either reciprocating motors or rotary motors, intended for household and similar use, both indoors and outdoors, for the spraying of non-flammable liquids. T
13、his standard defines the principal performance characteristics of spray guns which are of interest to the user, and describes the standard methods for measuring these characteristics. Safety requirements for hand-held electric spray guns are covered by IEC745-2-7. This standard does not deal with sa
14、fety requirements nor does it prescribe limits of acceptance for performance. 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated
15、were valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of curr
16、ently valid International Standards. IEC160:1963, Standard atmospheric conditions for test purposes. IEC745-2-7:1989, Safety of hand-held motor-operated electric tools Part2: Particular requirements for spray guns for non-flammable liquids. Section 2. Definitions For the purposes of this Internation
17、al Standard, the following definitions apply. 2.1 Terms used to designate the hand-held electric tool 2.1.1 spray gun a hand-held electric tool in which the container and motor are incorporated, with a storage container having a maximum pressure of30kPa, intended for the spraying of liquid, pasty or
18、 powdery substances mainly used to coat material NOTEIn this standard, “hand-held electric motor-operated spray guns” are referred to as “spray guns”. 2.2 Terms used to designate the characteristics of spray guns 2.2.1 rated input the input at rated voltage assigned to the spray gun by the manufactu
19、rer, expressed in watts 2.2.2 rated current the current measured for rated input at rated voltage, expressed in amperes 2.2.3 rated voltage the voltage assigned to the spray gun by the manufacturer 2.2.4 rated frequency the frequency assigned to the spray gun by the manufacturer 2.2.5 volume of cont
20、ainer the volume which can be filled with the materials for spraying, assigned to the container by the manufacturer in litres (dm 3 ) 2.2.6 total volume of the container the quantity of material which can be introduced up to the mark indicating the maximum filling level 2.2.7 useful volume of the co
21、ntainer the quantity of material which can be sprayed Section 3. General notes on measurements 3.1 List of measurements 3.1.1 Input (see4.1) 3.1.2 Delivery capacity (see4.2) 3.1.3 Viscosity performance (see4.3) 3.1.4 Volume of the container (see4.4) 3.1.5 Maximum pressure (see4.5) 3.1.6 Main dimensi
22、ons (see4.6) 3.1.7 Mass (see4.7) 3.1.8 Flexible cord length (see4.8) 3.1.9 Stability (see4.9) 3.1.10 Reliability test (see4.10) 3.1.11 Noise level (see4.11)BS3999-17:1993 2 BSI 10-1999 3.2 General conditions for measurements 3.2.1 Ambient conditions The room shall be maintained at20 C 5 C according
23、to IEC160. The relative humidity shall be between45% and75%. 3.2.2 Voltage and frequency The measurement shall be carried out at rated voltage with a tolerance of 1% and, if applicable, at rated frequency. Spray guns designed for d.c. only shall be tested ond.c. Spray guns designed for a.c. and d.c.
24、 shall be tested on a.c. Spray guns which are not marked with rated frequency shall be tested either on50Hz or on60Hz, whichever is common in the country of use. For spray guns with a rated voltage range, the measurements shall be carried out at the mean value of the voltage range if the difference
25、between the limits does not exceed10% of the mean value of the voltage range. If the difference between the limits exceeds10% of the mean value, the measurement shall be carried out both at the upper and lower limits of the range. NOTEIf the rated voltage or the mean of the voltage range differs fro
26、m the nominal voltage system of the country where the electric spray gun is used, measurements carried out at rated voltage or the mean of the voltage range may be misleading for the consumer. In this case additional measurements may be necessary. If the test voltage differs from the rated voltage,
27、this shall be reported. 3.2.3 Number of samples In order to prevent the determination of the performance of a spray gun from a sample having variations, the following measurements shall first be carried out on two samples: input under no load; input under load. NOTE 1If the values measured are withi
28、n5% of the mean value, one of the samples can be used for the remaining measurements. NOTE 2An additional sample may be used for the reliability test. Section 4. Methods of measurement 4.1 Input under load The input shall be measured when spraying water at maximum setting of the spray gun. NOTEFor t
29、he purpose of this standard, the load retained for the test is different from the normal load defined in 2.2.23 of IEC745-2-7. 4.2 Maximum delivery capacity The maximum delivery capacity shall be measured when spraying water. NOTEThe discharge capacity is expressed in dm 3 /min (litres/min). 4.3 Vis
30、cosity performance The viscosity performance indicated by the manufacturer shall be verified by the following tests: The spray gun shall operate correctly when used with a paint having a maximum viscosity as indicated by the manufacturer. Compliance is checked by a practical test, the spray gun bein
31、g operated in accordance with the instruction sheet. The device delivered with the spray gun by the manufacturer to check the viscosity of the paint shall be graduated in ISO units and shall be accurate. Compliance is checked by a practical test. The viscosity values determined with the device shall
32、 not differ from the value determined by the ISO methods by more than10%. NOTEThe viscosity of the liquids to be sprayed is expressed in Pa s. 4.4 Volume of the container Both the total volume and the useful volume of the container shall be measured as follows: The spray gun fitted with the maximum
33、diameter nozzle is filled with water up to the maximum level indicated, this quantity of water represents the total volume of the container. The spray gun is then operated at maximum discharge rate until no more water is sprayed. During the operation, the appliance may be canted in accordance with t
34、he manufacturers instructions. The container is then refilled up to the maximum level indicated. The added quantity of water is measured and corresponds to the useful volume.BS3999-17:1993 BSI 10-1999 3 4.5 Maximum pressure The maximum pressure, and the pressure at the nozzle and in the container du
35、ring continuous operation shall be measured. NOTEThe maximum pressure during continuous operation is expressed in MPa. 4.6 Main dimensions The following main dimensions shall be determined in millimetres (seeFigure 1): total length (l) of spray gun; height (h) of spray gun; diameter (d) of container
36、 (or total width of the spray gun); distance (l 1 ) between the nozzle and the front of the safety shroud, if any. 4.7 Mass The mass of the spray gun, including the empty container, the standard nozzle and the safety shroud but excluding flexible cable and plug, shall be measured. 4.8 Flexible cord
37、length The distance between the point of entry into the spray gun and the face of the electric plug, or the end of the cord sheath when no plug is fitted, is measured and expressed in metres to the nearest0,05m. 4.9 Stability The stability of the spray gun is checked in empty and filled conditions.
38、The spray gun is placed in any normal position of use on a horizontal plane which is then inclined. The smallest angle of inclination at which the spray gun becomes unstable is noted. 4.10 Reliability test 4.10.1 The reliability of the spray gun is characterized by the length of time before the firs
39、t failure occurs, the spray gun being tested at rated voltage and frequency, and at maximum delivery capacity for the paint sprayed. The spray guns designed for spraying varnish only are operated with synthetic varnish diluted according to the recommendation of the manufacturer. Other spray guns are
40、 operated with paint of airless quality diluted according to the instructions of the manufacturer. Each cycle comprises a period of operation long enough to empty the filled container and a rest period of5min with the spray gun switched off. 4.10.2 The maintenance of the spray gun is made according
41、to the recommendation of the manufacturer. Visible and audible signs of wear or failure are recorded. 4.10.3 Any electrical or mechanical failure except for replacement of brushes is considered as being proof of end of life. NOTEEvery8h the test is stopped to allow the spray gun to cool down to ambi
42、ent temperature and to be cleaned according to the instructions of the manufacturer. It is recommended that the test be stopped after48h of operation. 4.11 Noise level Under consideration. BS3999-17:1993 4 BSI 10-1999 Figure 1 Spray-gun (dimensions)BS3999-17:1993 BSI 10-1999 List of references See n
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