IEC_60364-4-44_A2_64_1384_CD.pdf

64/1384/CDCOMMITTEE DRAFT(CD)IEC/TC or SC:64 Project number IEC 60364-4-44,A2,f1,Ed.1 Title of TC/SC:Electrical installations and protection against electrical shock Date of circulation 2004-04-16 Closing date for comments 2004-07-16 Also of interest to the following committees TC 99 Supersedes document 64/1344/CD and 64/1383/CC Functions concerned:Safety EMC Environment Quality assurance Secretary:R.Pelta,Germany THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE.IT SHOULD NOT BE USED FOR REFERENCE PURPOSES.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.Title:Amendment 2 to IEC 603644-44 f1 Ed.1:Electrical installations of buildings-Part 4:Protection for safety-Part 4-44:Protection against voltage disturbances and measures against electromagnetic influences-Clause 442:Protection of low-voltage installations against temporary overvoltages and faults between high-voltage systems and earth (Titre):Introductory note This draft has been prepared by TC 64/MT 9 in the frame of maintenance of Part 44 of IEC 60364.FORM CD(IEC)2002-05-14 Copyright 2004 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.IEC 60364-4-44 A.2 Ed.1/CD IEC 2 64/1384/CD INTERNATIONAL ELECTROTECHNICAL COMMISSION ELECTRICAL INSTALLATIONS OF BUILDINGS Part 4-44:Protection for safety Protection against voltage disturbances and electromagnetic disturbances 440 Introduction Part 4-44 of IEC 60364 covers the protection of electrical installations against voltage disturbances and electromagnetic disturbances.The requirements are arranged into three sections as follows:Clause 442 Protection of low-voltage installations against temporary overvoltages and faults between high-voltage systems and earth Clause 443 Protection against overvoltages of atmospheric origin or due to switching Clause 444 Protection against voltage disturbances and electromagnetic disturbances Part 4-44(200X)brings together these clauses,which were previously published separately.440.1 Scope The rules of this part of IEC 60364 are intended to provide requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons.The rules of this part do not apply to systems which are wholly or partly under the control of public power supply companies(see scope of IEC 60364-1)although such disturbances may be conducted into or between electrical installations via these supply systems.440.2 Normative references The following normative documents contain provisions that,through reference in this text,constitute provisions of this part of IEC 60364.For dated references,subsequent amendments to,or revisions of,any of these publications do not apply.However,parties to agreements based on this part of IEC 60364 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.For undated references,the latest edition of the normative document referred to applies.Members of IEC and ISO maintain registers of currently valid International Standards.IEC 60038:1983,IEC standard voltages IEC 60050(604):1987,International Electrotechnical Vocabulary Chapter 604:Generation,transmission and distribution of electricity Operation IEC 60050(826):1982,International Electrotechnical Vocabulary Chapter 826:Electrical installations of buildings IEC 60364-1:2001,Electrical installations of buildings Part 1:Scope,object and fundamental principles IEC 60364-4-41:2001,Electrical installations of buildings Part 4-41:Protection for safety Protection against electric shock IEC 60364-4-42:2001,Electrical installations of buildings Part 4-42:Protection for safety Protection against thermal effects IEC 60364-4-44 A.2 Ed.1/CD IEC 3 64/1384/CD IEC 60364-5-53:2001,Electrical installations of buildings Part 5-53:Selection and erection of electrical equipment Isolation,switching and control IEC 60364-5-54,2002:Electrical installations of buildings Part 5-54:Selection and erection of electrical equipment Earthing arrangements and protective conductors and equipotential bonding IEC 60479-1:1994,Effects of current on human beings and livestock Part 1:General aspects IEC 60664-1:1992,Insulation co-ordination for equipment within low-voltage systems Part 1:Principles,requirements and tests IEC 60742:1983,Isolating transformers and safety isolating transformers Requirements IEC 61000-2-5:1995,Electromagnetic compatibility(EMC)Part 2:Environment Section 5:Classification of electromagnetic environments.Basic EMC publication IEC 6