Denmark SECRETARY:

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1 NEW WORK ITEM PROPOSAL (NP) PROPOSER: DATE OF PROPOSAL: Denmark DATE OF CIRCULATION: CLOSING DATE FOR VOTING: IEC TC 61 : SAFETY OF HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SECRETARIAT: United States of America SECRETARY: Ms Randi Myers NEED FOR IEC COORDINATION: PROPOSED HORIZONTAL STANDARD: Other TC/SCs are requested to indicate their interest, if any, in this NP to the TC/SC secretary FUNCTIONS CONCERNED: EMC ENVIRONMENT QUALITY ASSURANCE SAFETY TITLE OF PROPOSAL: Household and similar electrical appliances - Safety - Part 2-116: Particular requirements for furniture with electrically motorized parts STANDARD TECHNICAL SPECIFICATION PROPOSED PROJECT NUMBER: SCOPE (AS DEFINED IN ISO/IEC DIRECTIVES, PART 2, 14): This International Standard deals with the safety of furniture with electric motorized parts for household and similar purposes, their rated voltage being not more than 250 V for single-phase furniture and 480 V for other furniture. PURPOSE AND JUSTIFICATION INCLUDING THE MARKET RELEVANCE, WHETHER IT IS A PROPOSED HORIZONTAL STANDARD (GUIDE 108) AND RELATIONSHIP TO SAFETY (GUIDE 104), EMC (GUIDE 107), ENVIRONMENTAL ASPECTS (GUIDE 109) AND QUALITY ASSURANCE (GUIDE 102): There is a fast growing number and range of electric furniture on the market today. They are manufactured world-wide and used not only by normal consumers but also for commercial use. In many countries there is no specific safety standard covering electric furniture. As a safety standard the manufacturer sometimes is using part 1 of IEC in different ways without a part 2 and maybe together with the installation rules, so today there is a real need for this product safety standard to meet the electric safety obligations to authorities and users of these products. Copyright 2017 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC.

2 2 As the market has developed there is an international marked relevance for the standard and it does not only cover the furniture itself, but also production and export of special components and parts of the furniture. TARGET DATE(S) FOR FIRST CD: FOR IS: ESTIMATED NUMBER OF MEETINGS: FREQUENCY OF MEETINGS: DATE OF FIRST MEETING: PLACE OF FIRST MEETING: 1 1 per year Wellington, NZ RELEVANT DOCUMENTS TO BE CONSIDERED: None RELATIONSHIP OF PROJECT TO ACTIVITIES OF OTHER INTERNATIONAL BODIES: None LIAISONS WITH INTERNATIONAL BODIES: Consumer International NEED FOR ISO COORDINATION: DOCUMENT MATURITY: A DRAFT IS ATTACHED FOR COMMENT* AN OUTLINE IS ATTACHED * Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation. CONCERNS KNOWN PATENTED ITEMS (SEE ISO/IEC DIRECTIVES, PART 2) YES NO PATENT DESCRIPTION: WE NOMINATE A PROJECT LEADER IN ACCORDANCE WITH ISO/IEC DIRECTIVES, PART 1 LAST NAME: FIRST NAME: COUNTRY: Bukkjaer Gert gert.bukkjaer@mail.dk Denmark COMMENTS AND RECOMMENDATIONS FROM TC/SC OFFICERS: WORK ALLOCATION: NEW PROJECT TEAM NEW WORKING GROUP EXISTING WORKING GROUP: IF APPROVED, THE NEXT STAGE SHOULD BE: CD CDV REMARKS FROM TC/SC OFFICERS: An NP for electrical furniture was circulated in April 2015 as 61/4949/NP together with a draft prepared by the DK NC. Although 26 P-members approved the NW only 4 and not 5 P-members did nominate the name of an expert. A DC (61/5202/DC) was therefore discussed in the TC 61 meeting in Frankfurt October 2016 and a second DC (61/5360/DC) was on the agenda for the TC 61 meeting in Toronto 5-9 June 2017, but discussed during the TC 61 meeting in Vladivostok 9-13 October It was

3 3 approved for CDV (See 61/5554/DL) and a draft CDV is therefore circulated in parallel to this NP and will be dealt with during the next TC 61 meeting in Wellington NZ on May 2018 on condition that the NP now is approved by TC 61. APPROVAL CRITERIA Approval of the new work item proposal by a 2/3 majority of the P-members voting; At least 4 P-members in the case of a committee with 16 or fewer P-members, or at least 5 P-members in the case of committees with more than 17 P-members, have nominated or confirmed the name of an expert and approved the new work item proposal.

4 4 CONTENTS FOREWORD... 5 INTRODUCTION Scope Normative references Terms and definitions General requirement General conditions for the tests Classification Marking and instructions Protection against access to live parts Starting of motor-operated appliances Power input and current Heating Void Leakage current and electric strength at operating temperature Transient overvoltages Moisture resistance Leakage current and electric strength Overload protection of transformers and associated circuits Endurance Abnormal operation Stability and mechanical hazards Mechanical strength Construction Internal wiring Components Supply connection and external flexible cords Terminals for external conductors Provision for earthing Screws and connections Clearances, creepage distances and solid insulation Resistance to heat and fire Resistance to rusting Radiation, toxicity and similar hazards Annexes Bibliography... 16

5 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION 45 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-116: Particular requirements for furniture with electrically motorised parts FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as IEC Publication(s) ). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC has been prepared by IEC technical committee 61: Safety of household and similar electrical appliances International Standard IEC has been prepared by IEC technical committee 61: Safety of household and similar electrical appliances. The text of this International Standard is based on the following documents: FDIS 61/XX/FDIS Report on voting 61/XX/RVD Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC series, under the general title: Household and similar electrical appliances Safety, can be found on the IEC website.

6 This part 2 is to be used in conjunction with the latest edition of IEC and its amendments. It was established on the basis of the fifth edition (2010) of that standard. NOTE 1 When Part 1 is mentioned in this standard, it refers to IEC This part 2 supplements or modifies the corresponding clauses in IEC , so as to convert that publication into the IEC standard: Safety requirements for furniture with electrically motorised parts. When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies as far as is reasonable. When this standard states addition, modification or replacement, the relevant text in Part 1 is to be adapted accordingly. NOTE 2 The following numbering system is used: subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1; unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including those in a replaced clause or subclause; additional annexes are lettered AA, BB, etc. NOTE 3 The following print types are used: requirements: in roman type; test specifications: in italic type; notes: in small roman type. Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the associated noun are also in bold. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under " in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. The National Committees are requested to note that for this document the stability date is THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED AT THE PUBLICATION STAGE. NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication

7 INTRODUCTION It has been assumed in the drafting of this International Standard that the execution of its provisions is entrusted to appropriately qualified and experienced persons. This standard recognizes the internationally accepted level of protection against hazards such as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal use taking into account the manufacturer's instructions. It also covers abnormal situations that can be expected in practice and takes into account the way in which electromagnetic phenomena can affect the safe operation of appliances. This standard takes into account the requirements of IEC as far as possible so that there is compatibility with the wiring rules when the appliance is connected to the supply mains. However, national wiring rules may differ. If an appliance within the scope of this standard also incorporates functions that are covered by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as far as is reasonable. If applicable, the influence of one function on the other is taken into account. When a part 2 standard does not include additional requirements to cover hazards dealt with in Part 1, Part 1 applies. NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is not necessary to specify particular requirements for the appliance in question over and above the general requirements. This standard is a product family standard dealing with the safety of appliances and takes precedence over horizontal and generic standards covering the same subject. NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into consideration when developing the general and particular requirements for the IEC series of standards. For example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as ISO for hot surfaces, are not applicable in addition to Part 1 or part 2 standards. An appliance that complies with the text of this standard will not necessarily be considered to comply with the safety principles of the standard if, when examined and tested, it is found to have other features that impair the level of safety covered by these requirements. NOTE 3 Standards dealing with non-electrical aspects of furniture are prepared by ISO/TC

8 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-116: Particular requirements for furniture with electrically motorised parts 1 Scope This clause of Part 1 is replaced by the following. This International Standard deals with the safety of furniture with electrically motorised parts, their rated voltage being not more than 250 V for single-phase furniture and 480 V for other furniture. Furniture incorporating electrically motorised parts not intended for normal household use but which nevertheless may be a source of danger to the public, such as furniture intended to be used by laymen in shops, offices, hotels, restaurants, hospitals, in light industry and on farms, are within the scope of this standard. NOTE 102 Examples of furniture incorporating electrically motorised parts, are electrically operated/height adjustable tables and desks electrically operated/adjustable stands for TV sets electrically operated/adjustable seating beds with incorporated ventilators and filters electrically operated/adjustable beds electrically operated/adjustable storage units including kitchen units electrically operated wall attachment devices for TV's electric check-out furniture in hotels and shops furniture delivered in parts (ready to assemble or knock-down furniture) This standard deals with the reasonably foreseeable hazards presented by furniture incorporating electrically motorised parts that are encountered by all persons. However, in general, it does not take into account persons whose physical, sensory or mental capabilities; or lack of experience and knowledge prevents them from using the furniture incorporating electric appliances, parts or components safely without supervision or instruction; children playing with furniture incorporating electrically motorised parts. NOTE 103 Attention is drawn to the fact that or furniture incorporating electrically motorised parts intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary; in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national authorities for fire protection and similar authorities. This standard does not apply to mechanical tests on furniture parts unless they are encapsulating electrically motorised parts. It also covers the risks associated with the movement of the motorized part. NOTE 104 This standard does not apply to electrically operated hospital beds (IEC ); special furniture incorporating electric appliances, parts or components, which are part of industrial production equipment; cupboards for building in appliances like a dishwasher; electric child care articles except electrical high adjustable changing (nursing) tables; furniture especially for use by children; electrical appliances, parts and components covered by a specific international standard 2 Normative references

9 Addition: IEC , Appliance couplers for household and similar general purposes Part 3:Standard sheets and gauges 3 Terms and definitions 3.1 Definitions relating to physical characteristics Replacement normal operation appliance are operated with their rated load and under the most unfavourable conditions specified in the manufacturer s instructions rated duty cycle maximum activation (on) time followed by minimum deactivation (off) time necessary for the safe operation of the furniture assigned by the manufacturer rated load maximum load, in kg, assigned to the appliance by the manufacturer Note 1 to entry For beds, the mattress is considered a part of the rated load 3.5 Definitions relating to types of appliances furniture articles such as desks, chairs, tables and work benches, cupboards, shelves and beds 3.6 Definitions relating to parts of an appliance Replacement 3.6.3: accessible part part or surface that can be touched by means of test probe B, test probe 18 or test probe 19 of IEC 61032, and if the part or surface is metal, any conductive part connected to it Note 1 to entry: Accessible non-metallic parts with conductive coatings are considered to be accessible metal parts 3.7 Definitions relating to safety components Addition: biased-off switch (Hold-to-run switch) device, which initiates and maintain the movement only as long as the manual control is actuated entrapment protection system part of the appliance that protects against crushing impulse activation switch device which initiates the movement when the start button is activated and where the movement is continuing until the same start button, a stop button or a button changing the movement to the opposite direction is actuated Note 1 to entry: The same start button, a stop button or a button changing the movement to the opposite direction is known as a stop activation means

10 manual release handle or the like which initiates manual operation of the moving parts in case of disconnection of electric supply 3.8 Definitions relating to miscellaneous matters Addition: limited movement operation where movement of a part of the appliance are done in very small steps in order to inform the user that he has to shift their position for ergonomic reasons Note 1 to entry: This movement can be programmable and could be repeated in several series. 4 General requirement 5 General conditions for the tests Furniture is tested as a motor-operated appliance. 6 Classification 6.1 Modification: Appliances shall be of type class I, class II or class III. 7 Marking and instructions 7.1 Modification: Appliances shall be marked with their rated power input in watts. Appliances shall also be marked with their rated load in kg. Appliances shall be marked with symbol IEC or with the substance of the following: For indoor use only Appliances not intended for continuous operation shall be marked with their rated duty-cycle where the operating period and the rest period is specified. 7.6 Addition: [symbol IEC ( )] For indoor use only Addition: The instructions shall state the substance of the following warning. WARNING: Important safety instructions. It is important for the safety of persons to these instructions. Save these instructions. follow

11 The instruction shall state the substance of the following: disconnect the supply when cleaning or other maintenance is carried out; examine the appliance frequently for signs of wear or damage. If there is such signs, if the appliance has been misused or does not work, return it to the supplier for repair. do not allow children to play with fixed controls. keep remote controls away from children and only allow children to use the furniture under close supervision until they are able to use the furniture in a safe way; details on how to use a manual release, if any; when operating a biased-off switch or an impulse activation switch, make sure that other persons are kept away; The instructions shall also include the following: information relating to cleaning and user maintenance including use of chemical cleaning agents; an explanation of mode indicators; If symbol IEC is used its meaning shall be explained. 8 Protection against access to live parts This clause of Part 1 is applicable, except as follows. 8.1 Modification: Test probe 18 and test probe 19 of IEC shall also be applied as specified for test probe B. 8.2 Modification: Test probe 18 and test probe 19 of IEC shall also be applied as specified for test probe B. 9 Starting of motor-operated appliances This clause of Part 1 is not applicable. 10 Power input and current 11 Heating 11.7 Replacement: Appliances for continuous operation are operated until steady conditions are established. Appliances with a rated duty-cycle are operated according to this until steady conditions are established. 12 Void 13 Leakage current and electric strength at operating temperature 14 Transient overvoltages

12 Moisture resistance 15.2 Addition: Appliances having external surfaces on which it is possible to place a vessel, such as a cup or jug, are tested by rapidly pouring 0,5 l of the solution over the surface. If there is more than one surface, they are tested in turn. 16 Leakage current and electric strength 17 Overload protection of transformers and associated circuits 18 Endurance This clause of Part 1 is not applicable. 19 Abnormal operation 19.7 Addition: Appliances controlled by biased-off switch and appliances with moving parts controlled by impulse activation switch are supplied at rated voltage for 30 s; other appliances are supplied until steady conditions are established Addition: If the appliance can still be operated the tests of clauses and are carried out with the appliance being supplied at rated voltage. Either the appliance continues to fulfil the requirements, or, after the end positions has been reached it shall stop all functions, or the appliance shall change to a biased-off switch mode or an impulse activation switch mode Drives, other than those for continuous operation, are supplied at rated voltage and operated continuously under normal operation. 20 Stability and mechanical hazards 20.1 Addition: The test is carried out with the part driven by the motorised part in the most unfavourable position Appliances shall operate so that the movement is not likely to cause an injury. Compliance is checked as follows: moving parts controlled by a biased-off switch, by the requirement and test of ; moving parts controlled by an impulse activation switch, by the requirement and test of ; moving parts controlled by a remote operation, by the requirement and test of ; moving parts controlled by an limited movement, by the requirement and test of ; NOTE Communication between parts of the appliance can be wireless without changing the above categories

13 Moving parts of the appliance controlled by a biased-off switch shall stop when its actuating member is released. The biased-off switch shall be fixed on the appliance. Compliance is checked by inspection and the following test. The appliance is supplied at rated voltage and operated under normal operation in one direction and when the actuating member is released, the moving part of the appliance shall stop within a distance of 10 mm. The test is repeated for the movement in the opposite direction of the appliance and the moving part of the appliance shall again stop within 10 mm. If compliance relies on the operation of an electronic circuit, the test is repeated under the following conditions applied separately: the fault conditions in a) to g) of applied one at a time to the electronic circuit; the electromagnetic phenomena tests of and applied to the appliance Moving parts of the appliance controlled by an impulse-activation switch shall not cause a hazardous situation to occur. The impulse activation switch and the stop activation means shall be fixed to the appliance. Compliance is checked by inspection and the following test. The appliance is supplied at rated voltage is operated under normal operation in one direction and the relevant stop activation means is activated. The moving part of the appliance shall then stop within a distance of 10 mm after activation of the stop activation means. The test is repeated with the movement in the opposite direction and the moving part of the appliance shall then again stop within a distance of 10 mm. These two tests are repeated without activating the relevant stop activation mean and in both cases the moving part of the appliance shall stop within 10 s. If compliance relies on the operation of an electronic circuit, the test is repeated under the following conditions applied separately: the fault conditions in a) to g) of applied one at a time to the electronic circuit; the electromagnetic phenomena tests of and applied to the appliance Moving parts of the appliance controlled by a remote operation shall comply with one of the following three requirements to ensure that if the communication during remote operation is disturbed, the appliance does not introduce a dangerous malfunction Remote operation which initiates a limited movement of less than 7 mm shall comply with the requirements and test of The distance shall be greater than 223 mm or less than 7 mm during all movements. The openings shall be tested by inserting test probes with a diameter of 7 mm and 223 mm into the opening without appreciable force with moving parts in any possible position. Either the 7 mm probes shall not pass in any position or the 223 mm cylinder shall pass in any positions. The entrapment force is lower than 150N. Compliance is checked by measurement during the following test. The appliance is supplied at rated voltage and operated under normal operation. The force is measured by means of an instrument that incorporates a rigid plate having a diameter of 80 mm and a spring having a ratio of 500 N/mm ± 50 N/mm. The spring acts on a

14 sensing element that is connected to an amplifier having a rise and fall time not exceeding 5ms. Appliances intended for carrying persons shall be tested without load representing persons. Other appliances shall be loaded with rated load. The force is measured on the surface/edge of the moving parts and the fixed parts of the appliance at the most unfavourable locations. The force measuring instrument is inserted in the path of the surface/leading edge in the entrapment area where it can be squished between two opposite surfaces. The appliance is operated to move from one end position to the other and squashing the instrument during the movement. If compliance relies on the operation of an electronic circuit, the test is repeated under the following conditions applied separately: the fault conditions in a) to g) of applied one at a time to the electronic circuit; the electromagnetic phenomena tests of and applied to the appliance An entrapment protection system in the appliance shall reduce the risk of injury to the user. Compliance is checked by the following tests. The appliance is supplied at the most unfavourable voltage between 0,94 and 1,06 times rated voltage and operated under normal operation. The force is measured by means of an instrument that incorporates a rigid plate having a diameter of 80 mm and a spring having a ratio of 500 N/mm ± 50 N/mm. The spring acts on a sensing element that is connected to an amplifier having a rise and fall time not exceeding 5 ms. The force is measured on the surface/edge of the moving parts and the fixed parts of the appliance at the most unfavourable locations. Appliances intended for carrying persons shall be loaded with rated load. The test is repeated without a load applied. Other appliances shall be loaded with 1,1 times rated load. The force measuring instrument is inserted in the path of the surface/leading edge in the entrapment area where it can be squished between two opposite surfaces. The appliance is operated to move from one end position to the other and squashing the instrument during the movement. The forces between the opposite surfaces shall not exceed 150 N during the first 5 s; 25 N thereafter Moving parts controlled by a limited movement shall not cause hazard. Compliance is checked by inspection and by the following test. The appliance is supplied at the most unfavourable voltage between 0,94 and 1,06 times rated voltage. When the limited movement activates, the first movement from the current position shall be a small movement in one direction following by the second movement in the other direction. The stroke of the limited movement is measured and shall not exceed 7 mm The hazard against external parts is only to be considered for wall, floor, ceiling, and other building parts. The hazard against other furniture is not considered. Compliance is checked by the test to

15 Where a manual release is provided whatever is the control system, it shall be easy to operate. Operation of the manual release shall not give rise to a hazard such as kickback or unexpected operation of the appliance. Manual operation of the appliance shall not give rise to a hazard. Compliance is checked by the following test. Automatic operation of moving parts of an appliance is disabled. The appliance is supplied at the most unfavourable voltage between 0,94 and 1,06 times rated voltage. The appliance is adjusted for the maximum opening and closing forces, if such adjustment is mentioned in the instructions. The manual release is operated when the movement has stopped at each end position, in turn. The manual release shall be operable with a force not exceeding 220 N or a torque not exceeding 1,6 Nm. The force is applied as stated in the instructions. The test is repeated with the power supply interrupted. When the manual release has been activated, the power supply is then restored and the appliance is energized. Either the appliance shall not move, or shall move in such a way that all requirements of this standard are met. 21 Mechanical strength 21.1 Modification: The impact energy is increased to 1,0 J Hand-held parts of appliances incorporating electrical components shall have adequate mechanical strength. Compliance is checked by subjecting the hand-held parts of appliances incorporating electrical components to the test, Free fall repeated, procedure 2, of IEC The number of falls is 25. The height of the falls is mm. After the test, the requirements of 8.1, , 16.3 and Clause 29 shall be met. If the tested part can still operate to control the appliance, the complete appliance shall withstand the test of Clause Construction Rotating parts shall be secured against loosening. This requirement is considered to be met by using a counter-rotating thread. Compliance is checked by inspection The rated load for appliances intended for carrying persons shall not be less than 110 kg. Compliance is checked by inspection. 23 Internal wiring

16 Components 24.2 Modification: Furniture may be fitted with an impulse activation switch and a stop activation means in the flexible cord provided that the length of the flexible cord is such that the impulse activation switch or the stop activation means cannot make contact with the floor in normal use Protective devices incorporated in appliances for compliance with 19.4 shall be not self-resetting and shall only be accessible by using a tool. Compliance is checked by inspection. 25 Supply connection and external flexible cords This clause of Part 1 is applicable 26 Terminals for external conductors 27 Provision for earthing 28 Screws and connections 29 Clearances, creepage distances and solid insulation 30 Resistance to heat and fire For the following appliances is applicable appliances operated by a biased-off switch appliances operated by an impulse-activation switch For other appliances, is applicable. 31 Resistance to rusting 32 Radiation, toxicity and similar hazards The Annexes of Part 1 are applicable. Annexes Bibliography The bibliography of Part 1 is applicable.