IEC_64-1419e-CD.pdf

64/1419/CDCOMMITTEE DRAFT(CD)IEC/TC or SC:TC 64 Project number IEC 60364-5-53,Ed.4 Title of TC/SC:Electrical installations and protection against electrical shock Date of circulation 2004-10-15 Closing date for comments 2005-01-21 Also of interest to the following committees SC 23E,SC 17D Supersedes document 64/1418/MCR Functions concerned:Safety EMC Environment Quality assurance Secretary:Mr.Reinhard Pelta,Germany E-mail: 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:IEC 60364-5-53,Ed.4:Electrical installations of buildings Part 5-53:Selection and erection of electrical equipment Isolation,switching and control(Titre):Introductory note Proposal for the revision of IEC 60364-5-53,prepared in accordance with the decisions taken by MT 22 during the Paris September 2004 meeting.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.XXX IEC:200X 2 64/1419/CD CONTENTS 530.1 Scope.3 530.2 Normative references.3 530.3 General and common requirements.4 530.4 Fixing of equipment.4 531 Devices for fault protection(protection against indirect contact)by automatic disconnection of supply.5 531.1 Overcurrent protective devices.5 531.2 Residual current protective devices.5 532 Devices for protection against thermal effects.6 533 Devices for protection against overcurrent.6 533.1 General requirements.6 533.2 Selection of devices for protection of wiring systems against overloads.7 534 Devices for protection against overvoltages.8 535 Devices for protection against undervoltage.9 536 Co-ordination of various protective devices.9 537 Isolation and switching.9 537.1 General.9 537.2 Isolation.10 537.3 Switching-off for mechanical maintenance.11 537.4 Emergency switching.12 537.5 Functional switching(control).14 538 Monitoring devices.15 538.1 Insulation monitoring devices for IT systems(IMDs).15 538.2 Insulation monitoring device(IMD)for safety equipment.17 538.3 Fault location systems.17 538.4 Residual current monitor(RCM).17 538.5 Monitoring of the voltage and current.18 Annex E(Informative)-Conditions for equipment with flush mounting boxes.19 ANNEX F(Informative)-Coordination of residual current protective devices with overcurrent protective devices and coordination between residual current devices.19 F.1 Selectivity between residual current protective devices.19 F.2 Total or partial selectivity between residual current protective devices.20 Annex G(Informative)-Functions provided by protective,switching and isolating devices.23 XXX IEC:200X 3 64/1419/CD ELECTRICAL INSTALLATIONS OF BUILDINGS Part 5-53:Selection and erection of electrical equipment Isolation,switching and control Introduction 530.1 Scope This part of IEC 60364 deals with general requirements for isolation,switching,control and monitoring with the requirements for selection and erection of the devices provided to fulfil such functions,including requirements to provide protection.The requirements of this part are supplementary to the common rules given in part 5-51.530.2 Normative references The following referenced documents are indispensable for the application of this document.For dated references,only the edition cited applies.For undated references,the latest edition of the referenced document(including any amendments)applies.IEC 60269(all parts),Low-voltage fuses IEC 60364(all parts),Electrical installations of buildings IEC 60664(all parts),Insulation coordination for equipment within low-voltage systems IEC 60947(all parts),Low-voltage switchgear and controlgear IEC 60898(all parts),Circuit-breakers for overcurrent protection for household and similar installations IEC 61008(all parts),Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses(RCCBs)IEC 61009(all parts),Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBOs)IEC 61024-1,Protection of structures against lightning Part 1:General principles IEC 61312-1,Protection against lightning electromagnetic impulse Part 1:General principles IEC 61643-1,Surge-protective device connected to low-voltage power distribution systems Part 1:Performance requirements and testing methods IEC 61643-12,Surge-protective device connected to low-voltage power distribution systems Part 1:Performance requirements and testing methods XXX IEC:200X 4 64/1419/CD 530.3 General and common requirements This part of IEC 6036