SIST HD 384.6.61 S2:2004
(Main)Electrical installations of buildings -- Part 6-61: Verification - Initial verification
Electrical installations of buildings -- Part 6-61: Verification - Initial verification
Lays down requirements for the verification, by inspection and testing, of the compliance of the installation with the relevant requirements of other parts of EN 60364. Criteria for testing are given and tests described. This part is concerned only with new installations; it is not concerned with the inspection and testing of existing installations. However, the criteria for inspection and the tests described may be applied, if thought appropriate, to existing installations.
Elektrische Anlagen von Gebäuden -- Teil 6-61: Prüfungen - Erstprüfungen
Installations électriques des bâtiments -- Partie 6-61: Vérification - Vérification à la mise en service
Donne des prescriptions pour la vérification, par inspection ou essais de la conformité de l'installation avec les prescriptions appropriées des autres parties de la EN 60364. Des critères d'essais sont donnés et les essais décrits. La présente partie ne traite que d'installations neuves, elle ne traite pas de l'inspection et des essais des installations existantes. Toutefois, les critères d'inspection et les essais décrits peuvent s'appliquer, si cela est approprié, à des installations existantes.
Električne inštalacije zgradb – 6-61. del: Preverjanje – Prvo preverjanje (IEC 60364-6-61:1986 + A1:1993 + A2:1997, spremenjen)
General Information
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Standards Content (Sample)
SLOVENSKI SIST HD 384.6.61 S2:2004
STANDARD
februar 2004
Električne inštalacije zgradb – 6-61. del: Preverjanje – Prvo preverjanje (IEC
60364-6-61:1986 + A1:1993 + A2:1997, spremenjen)
Electrical installations of buildings - Part 6-61: Verification - Initial verification (IEC
60364-6-61:1986 + A1:1993 + A2:1997, modified)
ICS 91.140.50 Referenčna številka
SIST HD 384.6.61 S2:2004(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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HARMONIZATION DOCUMENT HD 384.6.61 S2
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT June 2003
ICS 13.260; 91.140.50 Supersedes HD 384.6.61 S1:1992
English version
Electrical installations of buildings
Part 6-61: Verification –
Initial verification
(IEC 60364-6-61:1986 + A1:1993 + A2:1997, modified)
Installations électriques des bâtiments Elektrische Anlagen von Gebäuden
Partie 6-61: Vérification – Teil 6-61: Prüfungen –
Vérification à la mise en service Erstprüfungen
(CEI 60364-6-61:1986 + A1:1993 + (IEC 60364-6-61:1986 + A1:1993 +
A2:1997, modifiée) A2:1997, modifiziert)
This Harmonization Document was approved by CENELEC on 2002-09-24. CENELEC members are
bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
implementation of this Harmonization Document on a national level.
Up-to-date lists and bibliographical references concerning such national implementation may be obtained on
application to the Central Secretariat or to any CENELEC member.
This Harmonization Document exists in three official versions (English, French, German).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and 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
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 384.6.61 S2:2003 E
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HD 384.6.61 S2:2003 – 2 –
Foreword
The text of the International Standard IEC 60364-6-61:1986 + A1:1993 + A2:1997, prepared by
IEC TC 64, Electrical installations and protection against electric shock, together with the common
modifications prepared by SC 64A, Protection against electric shock, of Technical Committee CENELEC
TC 64, Electrical installations of buildings, was submitted to the CENELEC formal vote and was approved
by CENELEC as HD 384.6.61 S2 on 2002-09-24.
This Harmonization Document HD 3846.6.1 S1:1992.
The following dates are proposed:
– latest date by which the existence of the HD has to be (doa) 2003-04-01
announced at national level
– latest date by which the HD has to be implemented at (dop) 2004-04-01
national level by publication of a harmonized national
standard or by endorsement
– latest date by which the national standards conflicting (dow) 2005-10-01
with the HD have to be withdrawn
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annex ZA is normative and annexes A, C, E and F are informative.
Annex ZA has been added by CENELEC.
In this Harmonization Document the common modifications to the International Standard are indicated by
a vertical line in the left margin of the text.
______
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61.1 General
61.1.1 Every installation shall be verified as far as reasonably practicable during erection and/or on
completion before being put into service by the user.
61.1.2 The information required by Clause 514.5 shall be made available to the persons carrying out
the verification.
61.1.3 Precautions shall be taken to avoid danger to persons and to avoid damage to property and
installed equipment during inspection and testing.
61.1.4 Where the installation is an extension or alteration of an existing installation, it shall be verified
that the extension or alteration complies with HD 384 and does not impair the safety of the existing
installation.
61.1.5 The verification shall be made by a skilled person, competent in verification.
61.1.6 On completion of the verification according to 61.1.1 and 61.1.4 a report shall be prepared.
NOTE Information on periodic verification is given in Annex F.
61.2 Normative references
See Annex ZA.
61.3 Definitions
For the purpose of Chapter 61 the following definitions apply.
61.3.1
verification
all measures by means of which compliance of the complete electrical installation with the HD's of the
HD 384 series is checked. Verification comprises inspection and testing
61.3.2
inspection
the examination of an electrical installation using all the senses in order to ascertain their proper selection
and erection
61.3.3
testing
the implementation of measures in an electrical installation by means of which its effectiveness is proved.
It includes ascertaining values by means of appropriate measuring instruments, these values not being
detectable by inspection
611 Inspection
611.1 Inspection shall precede testing and normally be done with the whole installation dead.
611.2 The inspection shall be made to confirm that electrical equipment which is part of the fixed
installation is
– in compliance with the safety requirements of the relevant equipment standards,
NOTE This may be ascertained by examination of marking or certification.
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HD 384.6.61 S2:2003 – 4 –
– correctly selected and erected according to HD 384 series and to the manufacturers instructions,
– not visibly damaged, so as to impair safety.
611.3 Inspection shall include at least the checking of the following, where relevant:
– method of protection against electric shock, including measurement of distances, with regard to, for
example, protection by barriers or enclosures, by obstacles or by placing out of reach, (see Clauses
412.2, 412.3, 412.4, 413.3 and Section 471);
NOTE The requirement stated in Clause 413.3 ''Protection by non-conducting location" is verifiable only where
the installation includes only electrical equipment which is part of the fixed installation.
– presence of fire barriers and other precautions against propagation of fire and protection against
thermal effects (see Chapters 42, 43 and Sections 482, 527);
– selection of conductors for current-carrying capacity and voltage drop (see Sections 523 and 525);
– choice and setting of protective and monitoring devices (see Chapter 53);
– presence of suitable isolating and switching devices correctly located (see Chapter 46 and
Section 537);
– selection of equipment and protective measures appropriate to external influences (see Clause 512.2
and Sections 482 and 522);
– identification of neutral and protective conductors (see Clause 514.3);
– presence of diagrams, warning notices or other similar information (see Clause 514.5);
– identification of circuits, overcurrent protective devices, switches, terminals, etc. (see Section 514);
– adequacy of connections of conductors (see Section 526);
– accessibility for convenience of operation, identification and maintenance (see Sections 513
and 514).
612 Testing
612.1 General
The following tests shall be carried out where relevant and should preferably be made in the following
sequence:
– continuity of the protective conductors and of the main and supplementary equipotential bonding (see
Clause 612.2);
– insulation resistance of the electrical installation (see Clause 612.3);
– protection by SELV and PELV or by electrical separation of circuits (see Clause 612.4);
– floor and wall resistance (see Clause 612.5);
– automatic disconnection of supply (see Clause 612.6);
– polarity test (see Clause 612.7);
– functional tests (see Clause 612.8);
– voltage drop (see Clause 612.9) (under consideration).
In the event of any test indicating failure to comply, that test and any preceding test, the results of which
may have been influenced by the fault indicated, shall be repeated after the fault has been rectified.
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The test methods described in this chapter are given as reference methods; other methods are not
precluded provided they give no less valid results.
Measuring instruments and monitoring equipment shall comply with EN 61557. If other measuring
equipment is used, it shall provide no less degree of performance and safety.
612.2 Continuity of the protective conductors, including the main and supplementary
equipotential bonding
A continuity test shall be made. It is recommended that the test be carried out with a supply having a no-
load voltage of 4 V to 24 V, d.c. or a.c., and with a minimum current of 0,2 A.
612.3 Insulation resistance of the electrical installation
The insulation resistance shall be measured between each live conductor and the protective conductor or
earth.
NOTE 1 In TN-C systems, the PEN conductor is considered as part of the earth.
NOTE 2 In locations exposed to fire hazards the insulation resistance between the live conductors should be
measured.
Table 61A – Minimum value of the insulation resistance
Nominal circuit voltage Test voltage d.c. Insulation resistance
to be applied
V V
MΩ
SELV, PELV 250
≥ 0,25
Up to and including 500 V 500
≥ 0,5
(including FELV), with the
exception of the above cases
Above 500 V 1 000
≥ 1,0
The insulation resistance, measured with the test voltage values indicated in Table 61A is satisfactory if
each circuit, with the appliances disconnected, has an insulation resistance not less than the appropriate
value given in Table 61A.
Table 61A is applicable for verification of the insulation resistance between non-earthed protective
conductors and earth.”
Measurements shall be carried out with direct current. The testing apparatus shall be capable of
supplying the test voltage specified in Table 61A when loaded with 1 mA.
612.4 Protection by SELV, PELV or by electrical separation
The separation of circuits shall be confirmed in accordance with 612.4.1 in the case of protection by
SELV, 612.4.2 in the case of protection by PELV, and 612.4.3 in the case of protection by electrical
separation.
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HD 384.6.61 S2:2003 – 6 –
612.4.1 Protection by SELV
The separation of live parts from those of other circuits and from earth, according to Section 411, shall be
confirmed by a measurement of the insulation resistance. The resistance values obtained shall be in
accordance with Table 61A.
612.4.2 Protection by PELV
The separation of live parts from those of other circuits, according to Section 411, shall be confirmed by a
measurement of the insulation resistance. The resistance values obtained shall be in accordance with
Table 61A.
612.4.3 Protection by electrical separation
The separation of live parts from those of other circuits and from earth, according to Clause 413.5, shall
be confirmed by a measurement of the insulation resistance. The resistance values obtained shall be in
accordance with Table 61A.
612.5 Floor and wall resistance
When it is necessary to comply with the requirements of Clause 413.3, at least three measurements shall
be made in the same location, one of these measurements being approximately 1 m from any accessible
extraneous conductive part in the location. The other two measurements shall be made at greater
distances.
The above series of measurements shall be repeated for each relevant surface of the location.
In Annex A to this chapter methods for measuring the insulating resistance/impedance of floors and walls
are given as examples.
612.6 Verification of conditions for protection by automatic disconnection of the supply
612.6.1 General
The verification of the efficacy of the measures for protection by automatic disconnection of supply is
effected as follows:
a) For TN systems
Compliance with the rules of 413.1.3.3 and 413.1.3.5 shall be verified by
1) measurement of the fault loop impedance (see 612.6.3).
Alternatively where the calculations of the fault loop impedance or of the resistance of the
protective conductors are available and when the arrangement of the installation permits the
verification of the length and cross-sectional area of the conductors, the verification of the
continuity of the protective conductors (see 612.2) is sufficient,
NOTE Compliance may be verified by measurement of the resistance of protective conductors under the
conditions described in Annex E.
2) verification of either the characteristics or the effectiveness of the associated protective device,
i.e. by inspection of the nominal current setting for circuit-breakers and the current rating for
fuses and also by inspection and test for residual current devices.
The effectiveness of the automatic disconnection of supply by RCD’s shall be verified by
generating a residual current up to I using suitable test equipment, without measurement of
dn
time.
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In addition, it shall be ascertained that the earthing resistance R is designed where necessary
B
according to 413.1.3.7.
b) For TT systems
Compliance with the rules of 413.1.4.2 shall be verified by
1) measurement of the resistance R of the earth electrode for exposed conductive parts of the
A
installation (see 612.6.2),
2) verification of the characteristics and/or the effectiveness of the associated protective device.
This verification shall be made
– for RCD's: by inspection and by test.
The effectiveness of the automatic disconnection of supply by RCD’s shall be verified by
generating a residual current up to I using suitable test equipment, without measurement of
dn
time,
– for overcurrent protective devices: by inspection (i.e. current setting for circuit-breakers, current
rating for fuses).
c) For IT systems
Calculation or measurement of the first fault current.
NOTE 1 This measurement is not necessary if all exposed conductive parts of the installation are connected to
the power system earth (see 312.2.3) in the case where the system is connected to earth through an impedance
(see 413.1.5.1).
NOTE 2 The measurement is made only if the calculation is not possible, because all the parameters are not
known. Precautions are to be taken while making this measurement in order to avoid the danger due to a double
fault.
Where conditions which are similar to conditions of TT systems occur in the event of a second fault
(see 413.1.5.5a)), verification is made according to item b) of this clause.
Where conditions similar to conditions of TN systems occur in the event of a second fault (see
413.1.5.5b)), verification is made according to item a) of this clause.
NOTE 3 During the measurement of the fault loop impedance, it is necessary to establish a connection of
negligible impedance between the neutral point of the system and the protective conductor at the origin of the
installation.
612.6.2 Measurement of the resistance of the earth electrode
Measurement of the resistance of an earth electrode, where prescribed (see 413.1.4.2 for TT systems
and 413.1.3.7 for TN systems and 413.1.5.3 for IT systems), is made by an appropriate method.
NOTE 1 Annex C gives, as an example, a description of a method of measurement using two auxiliary earth
electrodes and the conditions to be fulfilled.
NOTE 2 Where, in a TT system, the location of the installation (e.g. in towns) is such that it is not possible in practice
to provide the two auxiliary earth electrodes, measurement of the fault loop impedance (or resistance) will give an
excess value.
612.6.3 Measurement of the fault loop impedance
Measurement of the fault loop impedance shall be effected at the same frequency as the nominal
frequency of the circuit.
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HD 384.6.61 S2:2003 – 8 –
The measured fault loop impedance shall comply with 413.1.3.3 for TN systems and with 413.1.5.6 for IT
systems.
NOTE The fault loop impedance value might be influenced by significant fault currents. This particularly applies to
factory-built assemblies, including busbar trunking systems, metallic conduits and cables with metallic enclosures.
Where the requirements of this subclause are not satisfied or in case of doubt and where supplementary
equipotential bonding according to 413.1.6 is applied, the effectiveness of that bonding shall be checked
according to 413.1.6.2.
612.7 Polarity test
Where the rules forbid the installation of single pole switching devices in the neutral conductor, a test
shall be made to verify that all such devices are connected in the line conductor only.
612.8 Functional tests
Assemblies, such as switchgear and controlgear assemblies, drives, controls and interlocks, shall be
subjected to a functional test to show that they are properly mounted, adjusted and installed in
accordance with the relevant requirements of the HD 384 series.
Protective devices shall be submitted to functional tests, if necessary, in order to check whether they are
properly installed and adjusted.
612.9 Verification of voltage drop
Under consideration.
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Annex A
(informative)
Method for measuring the insulation resistance/impedance of floors
and walls to earth or protective conductors
Distinction is to be made between conductive floors and walls, floors and walls with leakage resistance
and insulating floors and walls.
In case of insulating floors and walls the necessary resistance/impedance to earth or protective
conductors shall be verified. This made be done in accordance with the following methods of
measurement:
For D.C.–systems:
measurement by using an insulation resistance
...
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