Bsi Bs En 50408-2008 + A1-2011.Pdf

BS EN 50408:2008+A1:2011 BSI Standards Publication Household and similar electrical appliances – Safety – Particular requirements for cab heaters for vehicles BRITISH STANDARD BS EN 50408:2008+A1:2011 National foreword This British Standard is the UK implementation of EN 50408:2008+A1:2011 It supersedes BS EN 50408:2008 which will be withdrawn on 25 April 2014 It is to be used in conjunction with BS EN 60035-2-30 and BS EN 60035-1 This standard supplements or modifies the corresponding clauses of BS EN 60335-2-30 The UK participation in its preparation was entrusted by Technical Committee CPL/61, Safety of household and similar electrical appliances, to Subcommittee CPL/61/7, Safety of electrical appliances - Heated appliance group A list of organizations represented on this subcommittee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © BSI 2011 ISBN 978 580 73263 ICS 43.040.60 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2009 Amendments/corrigenda issued since publication Date Text affected 30 November 2011 Implementation of CENELEC amendment A1:2011: Figure Z201 replaced EUROPEAN STANDARD EN 50408:2008+A1 NORME EUROPÉENNE EUROPÄISCHE NORM September 2011 ICS 43.040.60 English version Household and similar electrical appliances Safety Particular requirements for cab heaters for vehicles Appareils électrodomestiques et analogues Sécurité Règles particulières pour les appareils de chauffage d'habitacles de véhicules Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke Besondere Anforderungen für Fahrzeugkabinenheizungen This European Standard was approved by CENELEC on 2008-04-16 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this 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 versions (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 Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels © 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 50408:2008 E BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) -2- Foreword This European Standard was prepared by CENELEC BTWG 100-1, Cab heaters for vehicles The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50408 on 2008-04-16 The following dates were fixed: – – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-05-01 This European Standard is to be used together with EN 60335-2-30, Household and similar electrical appliances - Safety - Part 2-30: Particular requirements for room heaters It was established on the basis of EN 60335-2-30:2003, which is to be used together with EN 60335-1:2002 Amendments and revisions of EN 60335-1 and EN 60335-2-30 have also to be taken into account and the dates when such changes become applicable will be stated in the relevant amendment or revision of these standards This standard supplements or modifies the corresponding clauses of EN 60335-2-30, so as to convert it into the European Standard: Safety requirements for cab heaters for vehicles NOTE The following numbering system is used: - subclauses, notes, tables and figures that are numbered starting from 101 are additional to those in EN 60335-1; - subclauses, notes, tables and figures that are additional to those in EN 60335-2-30 are numbered starting from 201 and are prefixed with the letter Z; - additional annexes to those in EN 60335-2-30 are lettered AAA, BBB, etc NOTE 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 When a definition concerns an adjective, the adjective and the associated noun are also in bold Foreword to amendment A1 This amendment to the European Standard EN 50408:2008 was prepared by the Technical Committee CENELEC TC 61, Safety of household and similar electrical appliances (cf document CLC/TC61(SE)0406, discussed during the Brussels meeting of CLC/TC 61 in July 2010) The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as Amendment A1 to EN 50408:2008 on 2011-04-25 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN and CENELEC shall not be held responsible for identifying any or all such patent rights The following dates were fixed: – – latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with the amendment have to be withdrawn _ (dop) 2012-04-25 (dow) 2014-04-25 -3- BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) Scope Addition: This standard is intended to be used together with EN 60335-2-30:2003 and supplements or modifies the corresponding clauses of that standard Replace the second paragraph and NOTE 101 of this clause by: This standard deals with the safety of electric heaters for vehicles, intended for the heating of driver and passenger compartments of motor vehicles, their rated voltage being not more than 250 V for single-phase appliances Heaters intended especially for the heating of caravans are not covered by this standard NOTE 101 Void Delete the first indent of NOTE 102 Normative references Addition: Publication Year EN 60068-2-6 EN 60335-2-30 Title Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal) (IEC 60068-2-6) 2003 Household and similar electrical appliances – Safety Part 2-30: Particular requirements for room heaters (IEC 60335-2-30:2002, modified) Definitions Addition: 3.Z201 cab heater appliance for the heating of driver and passenger compartments of motor vehicles Cab heaters may be portable or intended to be permanently mounted NOTE If not otherwise stated, cab heaters shall be tested as portable combined appliances and/or combined appliances for permanent mounting General requirements This clause of EN 60335-2-30 is applicable General conditions for the test 5.3 Addition: The tests of 21.101 with exception of the spring hammer test are carried out before the tests of Clause BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) -4- Classification This clause of EN 60335-2-30 is applicable Marking and instructions 7.1 Addition: Cab heaters shall on a clearly visible place have an additional marking in the official language(s) of the country where the heater is sold, stating: Cab heater If the rated power is related to another ambient temperature than 20 °C ± °C, this temperature shall be clearly stated together with the rated power 7.12 Addition: The instructions for use shall include information on intended mounting The instructions for use shall state the shortest permissible distance between the heater outlet and combustible material and include a text with the following meaning: Any instructions for mounting, installation and use of cab heaters provided by the manufacturer of the car shall also be followed For cab heaters not delivered with cord and plug it shall be stated that for the connection between the cab heater and the outlet in the compartment the cord shall be at least a rubber cable (H05RN-F, H05RR-F, H05BB-F or equivalent) Any installation in the vehicle shall be properly made, comprising products and material intended for installation in vehicles NOTE It should be ensured that cables and cords are not damaged by doors, bonnet or other edges of the vehicle Protection against access to live parts This clause of EN 60335-2-30 is applicable Starting of motor-operated appliances Addition: Cab heaters incorporating motors shall be able to start at low temperatures Connect the appliance to rated voltage at -25 °C after the appliance has been stored at this temperature for 24 h A self-resetting thermal cut-out is allowed to operate twice before the fan starts -5- BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) 10 Power input and current 10.1 Addition: The test can be carried out at an ambient temperature other than 20 °C ± °C 11 Heating 11.2 Replace the replacement to this clause by: For this test is used a special test corner according to Figure Z201 and made of dull black-painted plywood approximately 20 mm thick All measures given in the figure are internal The wall A can be positioned at different distances from the far end of the special test corner For the tests the special test corner is placed in a test corner, as described in EN 60335-1, with wall B and the far end facing the walls of the test corner The test corner as described in EN 60335-1 shall be at least 470 mm wide, 760 mm deep and 470 mm high NOTE Wall B of the special test corner, as well as its bottom, can be open to facilitate access before and after test During test the special test corner is placed in the test corner in such a way, that it becomes closed by the walls and floor of the test corner, leaving only the opening towards wall A open The cab heater is placed in the special test corner in the most unfavourable position according to the manufacturer's instructions, if it will fit into the special test corner, and with the distance L = mm The shortest distance to combustible material shall however not be less than stated in the manufacturer's instructions and the wall A can be moved to increase L to a maximum distance L = 220 mm If the manufacturer has not supplied any instructions for the placing of the cab heater or if the heater cannot fit in the special test corner, the cab heater is placed in the most unfavourable position on the floor of the special test corner Heaters containing PTC heating elements are placed away from the walls if this will lead to higher temperatures Figure Z201 - Special test corner BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) 11.8 -6- Addition: For this purpose the cab heater is considered as an "other appliance" Replace Table 101 with Table Z201 Table Z201 - Maximum temperature rises for surfaces Surface Parts of the heater accessible to ambient air and which are accessible to test probe B of EN 61032 Temperature rise K 90 All surfaces that are curved with a radius not exceeding 10 mm or that are inclined at greater than 60° to the horizontal and that, in addition, are not accessible to test probe B of EN 61032 No limit Other parts of the cab heater accessible to ambient air 275 12 Void 13 Leakage current and electric strength at operating temperature This clause of EN 60335-2-30 is applicable 14 Transient overvoltages This clause of EN 60335-2-30 is applicable 15 Moisture resistance 15.3 Modification: Cab heaters shall be kept in the humidity cabinet for days (168 h) 16 Leakage current and electric strength This clause of EN 60335-2-30 is applicable 17 Overload protection of transformers and associated equipment This clause of EN 60335-2-30 is applicable 18 Endurance This clause of EN 60335-2-30 is applicable -7- BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) 19 Abnormal operation 19.1 Addition: Compliance is checked also by the following tests: The cab heater is positioned with the outlet air directed at a dull black-painted plywood wall placed at a distance of 10 cm and is connected to the voltage specified in 11.6 and is left operating until steady state has been reached or a non self-resetting thermal cut-out has operated Any thermostats are shunted during the test During the test the temperature rise at the test wall shall not exceed 65 K The distance to the test wall is measured as the shortest distance between the wall and the outlet fireguard The heater is covered, totally or partially, with a piece of cloth and is tested as specified in 19.1 The piece of cloth used shall have a thickness of 25 mm and a mass of (4,0 ± 0,4) kg/m² It shall be placed without pressure on the entire front and top of the heater, reaching down at the back of the heater to a distance of a fifth of the height of the heater, as measured from its top or, if less, as far as wall brackets or guards allow without being pushed If the design of the heater, however, allows fabrics to make contact with the back of the heater between or beside wall brackets, the piece of cloth shall cover the entire back of the heater between or beside wall brackets 19.107 Add at the end of the note: As an alternative, the motor speed can be reduced by applying a mechanical force at the shaft, increased in suitable steps 19.109 Addition: The test is repeated but with the cab heater positioned near to a dull black-painted plywood wall and with the outlet air directed at the wall and left operating until steady state has been reached or a non self-resetting thermal cut-out has operated During the test the temperature rise at the test wall shall not exceed 150 K 20 Stability and mechanical hazards This clause of EN 60335-2-30 is applicable 21 Mechanical strength Addition: 21.Z201 Cab heaters and any accessories shall withstand vibrations liable to occur during normal use If the mounting instructions for the cab heater give several mounting options, the test shall be carried out in the least favourable mounting position Compliance is checked by carrying out the vibration tests specified in EN 60068-2-6 under the following conditions: BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) -8- The appliance is fastened in its normal position of use to a vibration-generator by means of straps around the enclosure The type of vibration is sinusoidal, and the severity is as follows: – the direction of vibration is vertical; – the amplitude of vibration is 0,35 mm; – the sweep frequency range is 10 Hz to 55 Hz; – the duration of the test is 30 The appliance is mounted in its normal operating position and is subjected to a vertical sinusoidal vibration of 25 Hz and with a deflection of ± mm, for a period of 24 h After the test, the appliance shall show no damage that could impair compliance with this standard Especially compliance with 8.1, 15.1, 16.3, Clause 29 and Clause 32 shall not be impaired Screws shall not have changed position and connections shall not have worked loose If the test item comes off it's mounting it shall be subject to the test according to 11.2 in all positions which the appliance can take when it comes off During this test the temperature rise at the supporting surface shall not exceed 150 K The spring hammer test is performed at -25 °C after the appliance has been stored at his temperature for 24 h 21.Z202 Tests for fireguards shall be performed also for air inlet and air outlet for all types of cab heaters 22 Construction Modification: Heating elements shall be fully enclosed and have an even surface This requirement does not exclude PTC elements or moulded-in elements with flanged surface Compliance is checked by inspection 23 Internal wiring This clause of EN 60335-2-30 is applicable 24 Components Addition: If so required in Clause 19, the heating element shall be equipped with a non-self-resetting thermal cut-out, see Annex AAA Temperature limiting device with electric hold function is considered as self-resetting temperature limiting device Thermal cut-outs are not compulsory for cab heaters equipped with heating elements of the PTC type only NOTE Thermal cut-outs for motors can be of the self-resetting type -9- 24.1.4 BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) Modification: For room thermostats of cab heaters the number of cycles of operation is increased to 100 000 For self-resetting thermal cut-outs for motors in cab heaters the number of cycles of operation is increased to 10 000 25 Supply connection and external flexible cords 25.7 Addition: The cord used for the connection between the cab heater and the outlet in the compartment shall be at least a rubber cable (H05RN-F, H05RR-F, H05BB-F or equivalent) 25.8 Addition: The area of the cable shall be chosen with regard to the rated power of the cab heater when the ambient temperature is in the interval -25 °C to +20 °C 26 Terminals for external conductors This clause of EN 60335-2-30 is applicable 27 Provisions for earthing This clause of EN 60335-2-30 is applicable 28 Screws for connection This clause of EN 60335-2-30 is applicable 29 Clearances, creepage distances and solid insulation 29.2 Addition: Insulating materials in cab heaters are considered to be exposed to pollution degree in normal use 30 Resistance to heat and fire 30.1 Delete the addition 31 Resistance to rusting This clause of EN 60335-2-30 is applicable 32 Radiation, toxicity and similar hazards This clause of EN 60335-2-30 is applicable BS EN 50408:2008+A1:2011 EN 50408:2008+A1:2011 (E) - 10 - Annex AAA (normative) Thermal cut-outs and overload protection Non-self-resetting thermal cut-outs are checked as follows: Three items of the thermal cut-out are set in breaking position and kept in -35 °C for 18 h During this period none of the test items shall change to make position _ This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based 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