BS 3999-1-1993 Methods of measuring the performance of household electrical appliances - Electric kettles and jugs《家用电器性能测量方法 第1部分 电水壶》.pdf

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1、BRITISH STANDARD BS 3999-1: 1993 IEC 530:1975 (Including Amendment No.1:1992) Methods of Measuring the performance of household electrical appliances Part 1: Electric kettles and jugs UDC 621.365:64 643.352.5-83.083.001.42BS3999-1:1993 This British Standard, having been prepared under the directiono

2、f the Light Electrical Engineering Standards Policy Committee, was published underthe authority of the Standards Board and comesintoeffect on 15 March 1993 BSI 10-1999 First published March 1966 Second edition March 1993 The following BSI references relate to the work on this standard: Committee ref

3、erence LEL/59 Special announcement in BSINews December 1992 ISBN 0 580 21990 9 Committees responsible for this British 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

4、following bodies were represented: Association of Manufacturers of Domestic Electrical Appliances Consumer Policy Committee of BSI Consumers Association Department of Trade and Industry (Electricity Division) Electricity Association Portable Electric Tool Manufacturers Association Rotating Electrica

5、l Machines Association (BEAMA Ltd.) The following body was also represented in the drafting of the standard, through subcommittees and panels: Good Housekeeping Institute Amendments issued since publication Amd. No. Date CommentsBS3999-1:1993 BSI 10-1999 i Contents Page Committees responsible Inside

6、 front cover National foreword ii Section 1. General 1 Scope 1 2 Object 1 Section 2. Definitions 3 Kettle or jug 1 Section 3. General notes on measurements 4 List of measurements 1 5 General conditions for the measurements 1 Section 4. Measuring methods 6 Overall dimensions 1 7 Mass 1 8 Length of fl

7、exible cord 1 9 Water capacity 1 10 Time to boil 1l of water 1 11 Time to boil water capacity 2 12 Minimum quantity of water that can be boiled 2 13 Temperatures of supporting surface 2 Section 5. Functional provisions 14 Design of internal surface 2 15 Control 2 16 Type of supply connection 2 Appen

8、dix A Typical examples of kettle and jug 3 Figure 1 Kettle 3 Figure 2 Jug 3BS3999-1:1993 ii BSI 10-1999 National foreword This Part of BS 3999 has been prepared under the direction of the Light Electrical Engineering Standards Policy Committee. It is identical with IEC530:1975 Methods for measuring

9、the performance of electric kettles and jugs for household and similar use, including Amendment No. 1:1992, published by the International Electrotechnical Commission (IEC). This Part of BS3999 supersedes BS3999-1:1966 which is withdrawn. Textual error. When adopting the text of the International St

10、andard, the textual error given below was discovered. It has been marked in the text. Clause8 Length of flexible cord, in line 2, “indicated in metres downwards to0.05m.” should read “indicated in metres, rounded downwards to the nearest0.05m.” A British Standard does not purport to include all the

11、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 front cover, pagesi andii, pag

12、es1 to3 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.BS3999-1:1993 BSI 10-1999 1 Section 1. General 1 Scope This standard applies to electric kettles and jugs fo

13、rhousehold and similar use with a capacity upto2.5l. NOTESimilar use denotes use in other than household areas, e.g. inns, coffee-houses, tea-rooms, small hotels, etc., but only where the periods of use and the load are compatible with household use. 2 Object The purpose of this standard is to state

14、 and to define the principal performance characteristics of electric kettles and jugs which are of interest to the user and to describe the standard methods for measuring these characteristics. This standard is concerned neither with safety nor with performance requirements. Section 2. Definitions 3

15、 Kettle or jug A portable appliance for boiling water with means for pouring, either a lip or spout. Typical examples are shown inAppendix A. Section 3. General notes on measurements 4 List of measurements Overall dimensions (Clause6). Mass (Clause7). Length of flexible cord (Clause8). Water capacit

16、y (Clause9). Time to boil1l of water (Clause10). Time to boil water capacity (Clause11). Minimum quantity of water that can be boiled (Clause12). Temperatures of supporting surface (Clause13). 5 General conditions for the measurements Unless otherwise specified, the measurements are made under the f

17、ollowing conditions: Ambient temperature:20 5 C. Cold water temperature:15 1 C. Input: rated input. Testing room: substantially draught free. Placing of the appliance: on a black matt painted wooden support, projecting beyond the appliance by at least50mm on all sides, at least30cm away from walls.

18、For the measurements of Clauses10 and11, a support with thermocouples is used consisting of a plywood board20mm thick and painted black matt. At intervals of50mm, copper disks15mm in diameter and1mm thick are embedded so that they are flush with the surface. The outer side of the disks is blackened

19、and on their inner side fine-wire thermocouples are fastened. Section 4. Measuring methods 6 Overall dimensions The maximum overall dimensions of the appliance either length, width and height or diameter and height are measured and indicated in millimetres together with the general shape of the appl

20、iance (e.g. cylindrical, rectangular). Handles and any projections on the appliance itself are taken into account including control knobs, lids, cord guards of any flexible cord and appliance connectors of a cord set, if supplied with the appliance. 7 Mass The mass of the empty appliance with flexib

21、le cord, if attached, is measured and indicated in kilogrammes to the nearest0.1kg. 8 Length of flexible cord The distance between the point of entry into the appliance and the plug, including any cord guard, is measured and indicated in metres downwards to0.05m 1) . 9 Water capacity The water capac

22、ity stated by the manufacturer is indicated in litres. In the absence of a stated water capacity the water container is filled. This quantity is measured and90% thereof is indicated in litres to the nearest0,1litre. 10 Time to boil 1 l of water This measurement is made only on appliances having more

23、 than1l water capacity. 1) See national foreword for details of textual error.BS3999-1:1993 2 BSI 10-1999 One litre of cold water is poured into the appliance which has been preconditioned at a temperature of23 2 C. The appliance is switched on immediately, any control being set to its maximum posit

24、ion. The water temperature is measured by a watertight thermocouple situated10mm above the bottom centre of the water container. The time to boil1l of water is the time taken to raise the temperature of the water80 C above its initial value. The time is indicated in minutes and seconds to the neares

25、t10s. 11 Time to boil water capacity The test according to Clause10 is made with the quantity of water as indicated in Clause9. 12 Minimum quantity of water that can be boiled This measurement is made only on appliances where the heating element is intended to be immersed. The appliance is filled wi

26、th cold water so that the major part of the heating element is just covered, unless the manufacturers instructions give a minimum quantity of water, in which case this quantity is used. With any control set to its maximum position, the appliance is switched on and the water is allowed to boil for15s

27、 after boiling has started, or in the case of an automatic appliance until the thermostat operates. If a safety device operates, the test is repeated with the increased quantity of water necessary to ensure that the appliance will boil the water for at least15s or in the case of an automatic applian

28、ce until the thermostat operates. The quantity of water is measured and indicated in litres to the nearest0.1l. 13 Temperatures of supporting surface For the measurements of Clauses10 and11, the appliance is placed on the support as described in Clause5 so that any external part of the appliance for

29、 which high temperatures may be expected can touch or be as close as possible to the disks. The temperatures of the disks are recorded and the maximum value is indicated in C. Section 5. Functional provisions 14 Design of internal surface The material of the parts coming into contact with water, inc

30、luding surface coatings, is determined and stated. 15 Control The type of control provided, if any, shall be determined and stated. 16 Type of supply connection It is determined and indicated whether the kettle or jug is provided with a non-detachable cord or with an appliance inlet, and whether, in

31、 the latter case, it is supplied with or without cord set.BS3999-1:1993 BSI 10-1999 3 Appendix A Typical examples of kettle and jug Figure 1 Kettle Figure 2 JugBS 3999-1: 1993 IEC 530:1975 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body re

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