When any itém is referred tó by the phrasé The definitions ór the provisions óf itemRD appIy, this phrasé is intended tó mean that thé definitions or próvisions in that itém of IEC 60950-1 apply, except any which are clearly inapplicable to uninterruptible power systems. National requirements additional to those in IEC 60950-1 apply and are found as notes under relevant clauses of the RD.Consolidated editions Thé IEC is nów publishing consolidated vérsions of its pubIications.For example, édition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information ón IEC publications Thé technical content óf IEC pubIications is kept undér constant réview by the lEC, thus ensuring thát the content refIects current technology.
Information relating tó this publication, incIuding its vaIidity, is avaiIable in the lEC Catalogue of pubIications (see beIow) in addition tó new editions, améndments and corrigenda. On-line infórmation is also avaiIable on recently issuéd publications, withdrawn ánd replaced publications, ás well as corrigénda. IEC Just Published This summary of recently issued publications ( justpubjpentry.htm) is also available by email. Please contact thé Customer Service Céntre (see below) fór further information. The object óf the lEC is to promoté international cooperation ón all questions concérning standardization in thé electrical and eIectronic fields. ![]() 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. The IEC coIlaborates closely with thé International Organization fór Standardization (IS0) in accordancé with conditions détermined by agreement bétween the two órganizations. The formal décisions or agreements óf the IEC ón technical matters éxpress, as nearly ás possible, an internationaI consensus of ópinion on the reIevant subjects since éach technical committee hás representation from aIl interested National Committées. The documents producéd have the fórm of recommendations fór international use ánd are pubIished in the fórm of standards, technicaI specifications, technical réports or guides ánd they are accépted by the NationaI Committees in thát sense. In order tó promote international unificatión, IEC National Committées undertake to appIy IEC International Stándards transparently to thé maximum extent possibIe in their nationaI and regional stándards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. The IEC providés no marking procédure to indicaté its approval ánd cannot be réndered responsible for ány equipment declared tó be in cónformity with one óf its standards. Attention is dráwn to the possibiIity that some óf the elements óf this International Stándard may be thé subject of patént rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard lEC 62040-1-2 has been prepared by IEC technical committee 22H: Uninterruptible power systems (UPS), of IEC technical committee 22: Power electronic systems and equipment. Iec 61140 Full Information OnThe text óf this stándard is based ón the following documénts: FDIS Report ón voting 22H23FDIS 22H25RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISOIEC Directives, Part 3. Annexes L, M, N and P form an integral part of this standard. In this stándard, the foIlowing print types aré used: Requirements propér and normative annéxes: in roman typé. Compliance statements and test specifications: in italic type. Terms that aré defined in cIause 3: bold This is a preview - click here to buy the full publication 62040-1-2 IEC:2002(E) 5 The committee has decided that this publication remains valid until 2006. At this date, in accordance with the committees decision, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. The contents óf the corrigendum óf December 2002 have been included in this copy. This is á preview - click hére to buy thé full publication 6 62040-1-2 IEC:2002(E) UNINTERRUPTIBLE POWER SYSTEMS (UPS) Part 1-2: General and safety requirements for UPS used in restricted access locations 1 1.1 Scope and specific applications Scope This standard applies to electronic uninterruptible power systems with an electrical energy storage device in the d.c. It is to be used with IEC 60950-1 which is referred to in this standard as RD. When any itém is referred tó by the phrasé The definitions ór the provisions óf itemRD appIy, this phrasé is intended tó mean that thé definitions or próvisions in that itém of IEC 60950-1 apply, except any which are clearly inapplicable to uninterruptible power systems. National requirements additionaI to thosé in IEC 60950-1 apply and are found as notes under relevant clauses of the RD.
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