EN 50678:2020
(Main)General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair
General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair
This document specifies requirements for setting a uniform procedure to verify the effectiveness of the protective measures for current-using equipment or appliances after they have been repaired. This procedure is applicable to current-using equipment or appliances with a rated voltage above 25 V AC and 60 V DC up to 1 000 V AC and 1 500 V DC, and currents up to 63 A, connected to final circuits. They may be either pluggable equipment type A connected or permanently connected. This document is not intended to replace test covered by safety standards nor product standards, for example type tests, routine tests and acceptance tests. This document assumes that the current-using equipment or appliances under consideration complies with its related product standard, has been introduced on the market, has been in use, has failed, and has then been repaired. It intends to verify that operations for repairs have not jeopardized basic protective measures, for example to verify the continuity of the protective conductor, the withstand capability of the insulation or to verify that no metallic part is loose or is inadvertently inserted in the device. This document does not apply to: - recurrent tests defined in EN 50699; - devices and equipment that are part of the fixed electrical installations. For these, tests for verification after repair are covered by HD 60364 6; - audio/video, information and communication technology equipment; - uninterruptible Power Supply (UPS); - charging stations for electro-mobility; - power supplies; - programmable Logic Controllers (PLC); - power Drives; - devices for EX-zones or for mining applications in general; - products already covered by standards addressing similar topics such as: - medical equipment covered by EN 60601 1. For these devices, tests for verification after repair are covered by EN 62353; - arc welding equipment covered by EN IEC 60974 1. For these devices, tests for verification after repair are covered by EN 60974 4. - machinery covered by EN 60204-1. For these devices, EN 60204-1 applies.
Allgemeines Verfahren zur Überprüfung der Wirksamkeit der Schutzmaßnahmen von Elektrogeräten nach der Reparatur
Procédure générale visant à vérifier l'efficacité des mesures de protection des équipements électriques après réparation
Le présent document spécifie les exigences relatives à la définition d'une procédure uniforme visant à vérifier l'efficacité des mesures de protection pour les matériels ou appareils d'utilisation après leur réparation. Cette procédure s'applique aux matériels ou appareils d'utilisation avec une tension assignée supérieure à 25 V en courant alternatif et 60 V en courant continu jusqu'à 1 000 V en courant alternatif et 1 500 V en courant continu et des courants jusqu'à 63 A, raccordés à des circuits terminaux. Il peut s'agir d'équipements enfichables de type A ou d'équipements reliés en permanence. Le présent document ne vise pas à remplacer les essais couverts par les normes de sécurité ou les normes de produit, par exemple les essais de type, les essais individuels de série et les essais d'acceptation. Le présent document retient l'hypothèse que les matériels ou appareils d'utilisation à l'étude sont conformes à la norme de produit associée, qu'ils ont été mis sur le marché, qu'ils ont été utilisés, qu'ils ont subi une panne et qu'ils ont ensuite été réparés. Il vise à vérifier que les actions de réparation n'ont pas compromis les mesures de protection de base, pour contrôler par exemple la continuité du conducteur de protection, la capacité de tenue de l'isolement, ou pour contrôler qu'aucune pièce métallique ne s'est desserrée ou n'a été insérée dans l'appareil par inadvertance. Ce document ne s'applique pas aux: — essais récurrents définis dans l'EN 50699; — dispositifs et équipements qui font partie des installations électriques fixes. Pour ceux-ci, les essais concernant la vérification après réparation sont couverts par la norme HD 60364 6; — équipements des technologies de l'audio/vidéo, de l'information et de la communication; — alimentations sans interruptions (ASI); — bornes de charge pour l'électromobilité; — alimentations; — automates programmables (AP); — entraînements de puissance; — dispositifs pour les zones explosives (EX) ou pour les applications minières en général; — produits déjà couverts par des normes traitant de sujets similaires, tels que: — les appareils médicaux couverts par l'EN 60601 1. Pour ces dispositifs, les essais concernant la vérification après réparation sont couverts par l'EN 62353; — le matériel de soudage à l'arc couvert par l'EN IEC 60974 1. Pour ces dispositifs, les essais concernant la vérification après réparation sont couverts par l'EN 60974 4; — les machines couvertes par l'EN 60204-1. Pour ces dispositifs, l'EN 60204-1 s'applique.
Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za električno opremo po popravilu
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2020
Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za električno
opremo po popravilu
General procedure for verifying the effectiveness of the protective measures of electrical
equipment after repair
Allgemeines Verfahren zur Überprüfung der Wirksamkeitder Schutzmaßnahmen von
Elektrogeräten nach der Reparatur
Procédure générale visant à vérifier l'efficacité des mesures de protection des
équipements électriques après réparation
Ta slovenski standard je istoveten z: EN 50678:2020
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50678
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 17.220.20
English Version
General procedure for verifying the effectiveness of the
protective measures of electrical equipment after repair
Procédure générale visant à vérifier l'efficacité des mesures Allgemeines Verfahren zur Überprüfung der Wirksamkeit
de protection des équipements électriques après réparation der Schutzmaßnahmen von Elektrogeräten nach der
Reparatur
This European Standard was approved by CENELEC on 2019-12-16. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50678:2020 E
Contents Page
European foreword . 3
Introduction . 3
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 6
4 Requirements . 9
5 Tests . 9
5.1 General . 9
5.1.1 General test conditions . 9
5.1.2 Visual inspection . 10
5.1.3 Test of the protective measures against electric hazards . 10
5.1.4 Confirmation of the compliance of additional protective measures . 10
5.1.5 Documentation and evaluation of test . 10
5.2 Visual inspection . 11
5.3 Measurement of protective bonding resistance . 11
5.4 Measurement of the insulation resistance . 14
5.5 Measurement of protective conductor current . 21
5.6 Measurement of the touch-current . 27
5.7 Confirmation of the compliance of the specifications for the protective measure
SELV/PELV . 31
5.8 Measurement of the leakage current produced by a floating input with a rated input
voltage above 50 V AC or 120 V DC . 31
5.9 Confirmation of the operation of further protective measures . 32
5.10 Confirmation of the polarity of mains plug wiring . 32
5.11 Functional test . 32
6 Documentation and evaluation of test . 32
7 Test equipment . 33
Annex A (informative) General guidance and rationale . 34
A.1 Intended audience . 34
A.2 Rationale . 35
A.2.1 Clause 5 – Tests . 35
A.2.2 Subclause 5.3 – Measuring of protective bonding resistance . 35
A.2.3 Subclause 5.4 – Measurement of insulation resistance . 35
A.2.4 Alternative method . 37
A.2.5 Differential method . 37
Annex B (informative) Schematics for test sequences . 38
Annex D (normative) Special National Conditions . 41
Bibliography . 42
European foreword
This document (EN 50678:2020) has been prepared by CLC/TC 85X “Measuring equipment for
electrical and electromagnetic quantities”.
The following dates are fixed:
• latest date by which this document has (dop) 2020-12-16
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2022-12-16
standards conflicting with this document
have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Introduction
This standard intends to provide a general test procedure to verify the effectiveness of the basic
protective measures for current-using equipment or appliances after they have been repaired, thus
ensuring the safety of people using repaired equipment.
This standard may be considered to support compliance with the European Directive 2009/104/EU
concerning the minimum safety and health requirements for the use of work equipment by workers at
work.
In general, the test procedure for verification of products after repair is the responsibility of the related
product technical committees. This document may be taken into consideration by product technical
committees if they need to take into consideration modified or additional tests for verification after
repairs for products falling within their scope.
1 Scope
This document specifies requirements for setting a uniform procedure to verify the effectiveness of the
protective measures for current-using equipment or appliances after they have been repaired.
This procedure is applicable to current-using equipment or appliances with a rated voltage above 25 V
AC and 60 V DC up to 1 000 V AC and 1 500 V DC, and currents up to 63 A, connected to final
circuits. They may be either pluggable equipment type A connected or permanently connected.
This document is not intended to replace test covered by safety standards nor product standards, for
example type tests, routine tests and acceptance tests.
This document assumes that the current-using equipment or appliances under consideration complies
with its related product standard, has been introduced on the market, has been in use, has failed, and
has then been repaired.
It intends to verify that operations for repairs have not jeopardized basic protective measures, for
example to verify the continuity of the protective conductor, the withstand capability of the insulation or
to verify that no metallic part is loose or is inadvertently inserted in the device.
This document does not apply to:
— recurrent tests defined in EN 50699;
— devices and equipment that are part of the fixed electrical installations. For these, tests for
verification after repair are covered by HD 60364-6;
— audio/video, information and communication technology equipment;
— uninterruptible Power Supply (UPS);
— charging stations for electro-mobility;
— power supplies;
— programmable Logic Controllers (PLC);
— power Drives;
— devices for EX-zones or for mining applications in general;
— products already covered by standards addressing similar topics such as:
— medical equipment covered by EN 60601-1. For these devices, tests for verification after
repair are covered by EN 62353;
— arc welding equipment covered by EN IEC 60974-1. For these devices, tests for verification
after repair are covered by EN 60974-4.
— machinery covered by EN 60204-1. For these devices, EN 60204-1 applies.
___________
Under preparation. Stage at time of publication: prEN 50699:2019.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
HD 60364-6, Low-voltage electrical installations — Part 6: Verification (IEC 60364-4)
EN 61557 (series), Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V
DC — Equipment for testing, measuring or monitoring of protective measures (IEC 61557, series)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
NOTE Some of the definitions may differ from those in the product standards for type testing, as different
test methods are used.
3.1
electrical safety
protection within an equipment which limits the effects of electrical current on a user or other
individuals
Note 1 to entry: Safety is defined as freedom from unacceptable risk (refer to ISO 14971:2007, definition
2.24).
3.2
testing
visual control, measure and prove the electric equipment after repair to assure that equipment remains
safe to use
3.3
repair
means for restoration of the intended function of the equipment
3.4
(electrically) skilled person
person with relevant education and experience to enable him or her to perceive risks and to avoid
hazards which electricity can create
[SOURCE: IEC 60050-195:1998, 195-04-01]
3.5
electrical equipment
single apparatus using electrical energy and connected by plug or permanently connected to a final
circuit of the distribution system
Note 1 to entry: Equipment includes those accessories as defined by the manufacturer that are necessary to
enable the normal use of the equipment.
3.6
final circuit (of buildings)
electric circuit intended to supply directly electric current to current-using equipment or socket-outlets
[SOURCE: IEC 60050-826:2004, 826-14-03]
3.7
leakage current
current flowing from live parts of the equipment to earth
[SOURCE: IEC 60050-442:1998, 442-01-24 modified – the term has changed and a reference to the
absence of an insulation fault has been removed]
3.8
touch-current
electric current passing through a human body or through an animal body when it touches one or more
accessible parts of electrical equipment not connected to
...
SIST EN 50678
S L O V E N S K I
S T A N D A R D julij 2020
Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za električno
opremo po popravilu
General procedure for verifying the effectiveness of the protective measures of
electrical equipment after repair
Procédure générale visant à vérifier l'efficacité des mesures de protection des
équipements électriques après réparation
Allgemeines Verfahren zur Überprüfung der Wirksamkeitder Schutzmaßnahmen
von Elektrogeräten nach der Reparatur
Referenčna oznaka
ICS 17.220.20 SIST EN 50678:2020 (sl, en)
Nadaljevanje na straneh II in od 1 do 85
2024-06. Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno.
SIST EN 50678 : 2020
NACIONALNI UVOD
Standard SIST EN 50678 (sl, en), Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za
električno opremo po popravilu, 2020, ima status slovenskega standarda in je istoveten evropskemu
standardu EN 50678 (en), General procedure for verifying the effectiveness of the protective measures
of electrical equipment after repair, 2020.
NACIONALNI PREDGOVOR
Evropski standard EN 50678:2020 je pripravil tehnični odbor Evropskega komiteja za standardizacijo v
elektrotehniki CLC/TC 85X Merilna oprema za elektromagnetne veličine. Slovenski standard SIST EN
50678:2020 je prevod evropskega standarda EN 50678:2020. V primeru spora glede besedila
slovenskega prevoda v tem standardu je odločilen izvirni evropski standard v angleškem jeziku.
Slovensko izdajo standarda je pripravil tehnični odbor SIST/TC MOV Merilna oprema za
elektromagnetne veličine.
Odločitev za privzem tega standarda je 21. maja 2020 sprejel tehnični odbor SIST/TC MOV Merilna
oprema za elektromagnetne veličine.
ZVEZA Z NACIONALNIMI STANDARDI
S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi
standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:
SIST HD 60364-6 Nizkonapetostne električne inštalacije – 6. del: Preverjanje
SIST EN 61557 (skupina) Električna varnost v nizkonapetostnih razdelilnih sistemih izmenične
napetosti do 1 kV in enosmerne napetosti do 1,5 kV – Oprema za
preskušanje, merjenje ali nadzorovanje zaščitnih ukrepov
SIST EN 13501-6 Požarna klasifikacija gradbenih proizvodov in elementov stavb – 6. del:
Klasifikacija po podatkih iz preskusov odziva na ogenj na električnih,
krmilnih in komunikacijskih kablih
OSNOVA ZA IZDAJO STANDARDA
– privzem standarda EN 50678:2020
OPOMBE
– Povsod, kjer se v besedilu standarda uporablja izraz "evropski" standard, v SIST EN 50678:2020
to pomeni "slovenski standard".
– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.
– Ta nacionalni dokument je istoveten EN 50678:2020 in je objavljen z dovoljenjem
CEN-CENELEC
Upravni center
Rue de la Science 23
B-1040 Bruselj
This national document is identical with EN 50678:2020 and is published with the permission of
CEN-CENELEC
Management Centre
Rue de la Science 23
B-1040 Brussels
II
EVROPSKI STANDARD EN 50678
EUROPEAN STANDARD
marec 2020
NORME EUROPÉENNE
EUROPÄISCHE NORM
ICS 17.220.20
Slovenska izdaja
Splošni postopek preverjanja učinkovitosti zaščitnih ukrepov za
električno opremo po popravilu
General procedure for verifying the Procédure générale visant à vérifier Allgemeines Verfahren zur
effectiveness of the protective l'efficacité des mesures de Überprüfung der Wirksamkeitder
measures of electrical equipment protection des équipements Schutzmaßnahmen von
after repair électriques après réparation Elektrogeräten nach der Reparatur
Ta evropski standard je CENELEC sprejel 13. decembra 2019. Člani CENELEC morajo izpolnjevati
notranje predpise CEN/CENELEC, ki določajo pogoje, pod katerimi dobi ta evropski standard status
nacionalnega standarda brez kakršnihkoli sprememb.
Najnovejši seznami teh nacionalnih standardov in njihovi bibliografski podatki se na zahtevo lahko dobijo
pri Upravnem centru CEN-CENELEC ali kateremkoli članu CENELEC.
Ta evropski standard obstaja v treh uradnih izdajah (angleški, francoski in nemški). Izdaje v drugih
jezikih, ki jih člani CENELEC na lastno odgovornost prevedejo in izdajo ter priglasijo pri Upravnem
centru CEN-CENELEC, imajo enak status kot uradne izdaje.
Člani CENELEC so nacionalni elektrotehniški komiteji Avstrije, Belgije, Bolgarije, Cipra, Češke, Danske,
Estonije, Finske, Francije, Grčije, Hrvaške, Islandije, Irske, Italije, Latvije, Litve, Luksemburga,
Madžarske, Malte, Nemčije, Nizozemske, Norveške, Poljske, Portugalske, Republike Severne
Makedonije, Romunije, Srbije, Slovaške, Slovenije, Španije, Švedske, Švice, Turčije in Združenega
kraljestva.
CENELEC
Evropski komite za standardizacijo v elektrotehniki
European Committee for Electrotechnical Standardisation
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Upravni center CEN-CENELEC: Rue de la Science 23, B-1040 Bruselj
© 2020 CENELEC Vse pravice do izkoriščanja v kakršnikoli obliki in na Ref. št. EN 50678:2020 E
kakršenkoli način imajo nacionalni člani CENELEC.
SIST EN 50678 : 2020
VSEBINA . Stran
Evropski predgovor . 4
Uvod . 6
1 Področje uporabe . 8
2 Zveze s standardi .10
3 Izrazi in definicije .10
4 Zahteve .16
5 Preskusi .16
5.1 Splošno .16
5.1.1 Splošni preskusni pogoji .16
5.1.2 Vizualni pregled .18
5.1.3 Preskus zaščitnih ukrepov proti električnim nevarnostim .18
5.1.4 Potrditev skladnosti dodatnih zaščitnih ukrepov .18
5.1.5 Dokumentacija in ovrednotenje preskusa .18
5.2 Vizualni pregled .20
5.3 Meritev upornosti zaščitne povezave .20
5.4 Meritev izolacijske upornosti .26
5.5 Meritev toka v zaščitnem vodniku .40
5.6 Meritev toka dotika .52
5.7 Potrditev skladnosti specifikacije za zaščito SELV/PELV .60
5.8 Meritev uhajavega toka plavajočega vhoda z naznačeno vhodno napetostjo, višjo od
50 V izmenično ali 120 V enosmerno .60
5.9 Potrditev delovanja dodatnih zaščitnih ukrepov .62
5.10 Potrditev pravilnosti povezav omrežnega vtiča .62
5.11 Funkcionalni preskus .62
6 Dokumentacija in ovrednotenje preskusa .62
7 Preskusna oprema .64
Dodatek A (informativni): Splošni napotki in razlogi .66
A.1 Ciljna skupina .66
A.2 Razlog .68
A.2.1 Točka 5 – Preskusi.68
A.2.2 Podtočka 5.3 – Meritev upornosti zaščitne izenačitve .68
A.2.3 Podtočka 5.4 – Meritev izolacijske upornosti .68
A.2.4 Alternativna metoda .74
A.2.5 Diferencialna metoda .74
Dodatek B (informativni): Sheme za preskusne sekvence .76
Dodatek C (normativni): Zahteve za preskušanje gospodinjskih in podobnih aparatov
po EN 60335 (vsi deli) v skladu z njihovim področjem uporabe .80
Dodatek D (normativni): Posebni nacionalni pogoji .82
Literatura.84
SIST EN 50678 : 2020
CONTENTS . Page
European foreword . 5
Introduction . 7
1 Scope . 9
2 Normative references .11
3 Terms and definitions .11
4 Context of the organization .17
5 Tests .17
5.1 General .17
5.1.1 General test conditions .17
5.1.2 Visual inspection .19
5.1.3 Test of the protective measures against electric hazards .19
5.1.4 Confirmation of the compliance of additional protective measures .19
5.1.5 Documentation and evaluation of test .19
5.2 Visual inspection .21
5.3 Measurement of protective bonding resistance .21
5.4 Measurement of the insulation resistance .27
5.5 Measurement of protective conductor current .41
5.6 Measurement of the touch-current .53
5.7 Confirmation of the compliance of the specifications for the protective measure SELV/PELV .61
5.8 Measurement of the leakage current produced by a floating input with a rated input voltage
above 50 V AC or 120 V DC .61
5.9 Confirmation of the operation of further protective measures .63
5.10 Confirmation of the polarity of mains plug wiring .63
5.11 Functional test .63
6 Documentation and evaluation of test .
...
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