IEC_60364-6-61-1986_scan.pdf

364-6-61IEC 19863-CONTENTSPageFOREWORD5PREFACE.。5Section610.General.7611.Visual inspection.7612.Testing.9APPENDIX A-Method for measuring the insulation resistance of floors and walls.15364-6-61CIEC 19865INTERNATIONAL ELECTROTECHNICAL COMMISSIONELECTRICAL INSTALLATIONS OF BUILDINGSPart 6:VerificationChapter 61:Initial verificationFOREWORD1)The formal decisions or agreements of the I E C on technical matters,prepared by Technical Committees on which allthe National Committees having a special interest therein are represented,express,as nearly as possible,an internationalconsensus of opinion on the subjects dealt with.2)They have the form of recommendations for international use and they are accepted by the National Committees in thatsense.3)In order to promote international unification,the I E C expresses the wish that all National Committees should adoptthe text of the I E C recommendation for their national rules in so far as national conditions will permit.Any divergencebetween the I E C recommendation and the corresponding national rules should,as far as possible,be clearly indicatedin the latter.PREFACEThis standard has been prepared by IE C Technical Committee No.64:Electrical Installationsof Buildings.The text of this standard is based on the following documents:Six MonthsRuleReport on Voting64(CO)15264(CO)160Further information can be found in the Report on Voting indicated in the table above.364-6-61IEC1986-7ELECTRICAL INSTALLATIONS OF BUILDINGSPart 6:VerificationChapter 61:Initial verification610.GENERAL610.1 Every installation shall,during erection and/or on completion before being put into serviceby the user,be visually inspected and tested to verify,as far as practicable,that therequirements of this standard have been met.610.2 The information required by Clause 514.5 shall be made available to the persons carryingout the verification.610.3 Precautions shall be taken to avoid danger to persons and to avoid damage to propertyand installed equipment during inspection and testing.610.4 Where the installation is an extension or alteration of an existing installation,it shall beverified that the extension or alteration complies with this standard and does not impair thesafety of the existing installation.611.VISUAL INSPECTION611.1 Visual inspection shall precede testing-and normally be done with the whole installationdead.611.2 The visual inspection shall be made to confirm that permanently wired electrical equipmentis:-in compliance with the safety requirements of the relevant equipment standards;Note.-This may be ascertained by examination of marking or certification.-correctly selected and erected according to this standard;-not visibly damaged,so as to impair safety.611.3 Visual inspection shall include at least the checking of the following,where relevant:-method of protection against electric shock,including measurement of distances,con-cerning,for example,protection by barriers or enclosures,by obstacles or by placing outof reach(see Clauses 412.2,412.3,412.4,413.3,Section 471);Note.-The requirement stated in Clause 413.3Protection by non-conducting locationis verifiable only wherethe installation includes only permanently wired equipment.-presence of fire barriers and other precautions against propagation of fire and protectionagainst thermal effects(see Chapter 42);-selection of conductors for current-carrying capacity and voltage drop(see Sec-tion 523);choice and setting of protective and monitoring devices(see Chapter 53);presence of suitable isolating and switching devices correctly located(see Chapter 46 andSection 537);-selection of equipment and protective measures appropriate to external influences(seeClause 512.2);-neutral and protective conductors identification(Clause 514.3);364-6-61CIEC 19869-presence of diagrams,warning notices or other similar information(Clause 514.5);-identification of circuits,fuses,switches,terminals,etc.(see Section 514);-adequacy of connections of conductors;-accessibility for convenience of operation and maintenance.612.TESTING612.1 GeneralThe following tests shall be carried out where relevant and should preferably be made inthe following sequence:-continuity of the protective conductors and of the main and supplementary equipotentialbonding(see Clause 612.2);-insulation resistance of the electrical installation(see Clause 612.3);-protection by separation of circuits(see Clause 612.4);-floor and wall resistance(see Clause 612.5);-automatic disconnection of supply(see Clause 612.6)(under consideration);-polarity test(see Clause 612.7);-electric strength test(see Clause 612.8);-functional tests(see Clause 612.9);-thermal effects(see Clause 612.10)(under consideration);-voltage drop(see Clause 612.11)(under consideration).In the event of any test indicating failure to comply,that test and any preceding test,theresults of which may have been influenced by the fault indicated,shall be repeated after thefault has been rectified.The test methods described in this chapter are given as reference methods;other methodsare not precluded provided they give no less valid results.612.2 Continuity of the protective conductors,including the main and supplementary equipotentialbondingA continuity test shall be made.It is recommended that the test be carried out with asupply having a no-load voltage of 4 V to 24 V,d.c.or a.c.,and with a minimum current of0.2A.612.3 Insulation resistance of the electrical installationThe insulation resistance shall be measured:a)between live conductors taken in turn two by two;Note.-In practice,this measurement can only be carried out during erection of the installation before theconnection of the appliances.b)between each live conductor and earth.Notes.1.-In TN-C systems,the PEN conductor is considered as part of the earth.2.-During this measurement,phase and neutral conductors may be connected together.