EN 60670-24:2013/prAA

Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment

To cover requirements for boxes and enclosures with provision for suspension means

Dosen und Gehäuse für elektrische Installationsgeräte für Haushalt und ähnliche ortsfeste elektrische Installationen - Teil 24: Besondere Anforderungen für Gehäuse zur Aufnahme von Schutzgeräten und ähnlichen energieverbrauchenden Geräten

Boîtes et enveloppes pour appareillage électrique pour installations électriques fixes pour usages domestiques et analogues - Partie 24: Exigences particulières pour enveloppes pour appareillages de protection et autres appareillages électriques ayant une puissance dissipée

Omarice in ohišja za električno opremo za gospodinjstvo in podobne nepremične električne inštalacije - 24. del: Posebne zahteve za ohišja stanovanjskih zaščitnih naprav in druge električne opreme, ki porablja energijo

General Information

• Status: Not Published
• ICS: 29.120.10 - Conduits for electrical purposes
• Technical Committee: CLC/TC 23BX - CLC_TC_23BX
• Current Stage: 4099 - Decision to launch vote
• Due Date: 25-Apr-2022
• Completion Date: 25-Apr-2022
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: SIST EN 60670-24:2013/oprAA:2021 - Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment

RELATIONS

• Amends: EN 60670-24:2013 - Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment
• Effective Date: 10-Nov-2020

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 60670-24:2013/oprAA:2021
01-november-2021
Omarice in ohišja za električno opremo za gospodinjstvo in podobne nepremične

električne inštalacije - 24. del: Posebne zahteve za ohišja stanovanjskih zaščitnih

naprav in druge električne opreme, ki porablja energijo

Boxes and enclosures for electrical accessories for household and similar fixed electrical

installations - Part 24: Particular requirements for enclosures for housing protective

devices and other power dissipating electrical equipment
Dosen und Gehäuse für elektrische Installationsgeräte für Haushalt und ähnliche

ortsfeste elektrische Installationen - Teil 24: Besondere Anforderungen für Gehäuse zur

Aufnahme von Schutzgeräten und ähnlichen energieverbrauchenden Geräten

Boîtes et enveloppes pour appareillage électrique pour installations électriques fixes

pour usages domestiques et analogues - Partie 24: Exigences particulières pour

enveloppes pour appareillages de protection et autres appareillages électriques ayant

une puissance dissipée
Ta slovenski standard je istoveten z: EN 60670-24:2013/prAA
ICS:
29.120.99 Druga električna dodatna Other electrical accessories
oprema
SIST EN 60670-24:2013/oprAA:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60670-24:2013/oprAA:2021
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SIST EN 60670-24:2013/oprAA:2021
EUROPEAN STANDARD DRAFT
EN 60670-24:2013
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
August 2021
ICS 29.120.10
English Version
Boxes and enclosures for electrical accessories for household
and similar fixed electrical installations - Part 24: Particular
requirements for enclosures for housing protective devices and
other power dissipating electrical equipment

Boîtes et enveloppes pour appareillage électrique pour Dosen und Gehäuse für elektrische Installationsgeräte für

installations électriques fixes pour usages domestiques et Haushalt und ähnliche ortsfeste elektrische Installationen -

analogues - Partie 24: Exigences particulières pour Teil 24: Besondere Anforderungen für Gehäuse zur

enveloppes pour appareillages de protection et autres Aufnahme von Schutzgeräten und ähnlichen

appareillages électriques ayant une puissance dissipée energieverbrauchenden Geräten

This draft amendment prAA, if approved, will modify the European Standard EN 60670-24:2013; it is submitted to CENELEC members for

enquiry.
Deadline for CENELEC: 2021-11-05.
It has been drawn up by CLC/TC 23BX.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this amendment the status of a national standard without any alteration.

This draft amendment was established by CENELEC 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Project: 72934 Ref. No. EN 60670-24:2013/prAA E
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
European Foreword

This document (EN 60670-24:2013/prAA:2021) has been prepared by CLC/TC 23BX "Switches,

boxes and enclosures for household and similar purposes, plugs and socket outlet for D.C.".

This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

This document has been prepared under a Standardization Request given to CENELEC by the

European Commission and the European Free Trade Association, and supports essential

requirements of EU Directive(s) / Regulation(s).

For relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an integral

part of this document.
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
1 Modification to Clause 1, “Scope”
Add the following paragraph before NOTE 1:

“This standard does not apply to surface type boxes, flush and semi-flush type boxes suitable for the

housing of accessories for household and similar use such as switches, electronic switches, socket-

outlets, which are covered by EN 60670-1 only.”
2 Modification to Clause 7, “Classification”
Replace the 3 line with:
“Classification criteria 7.2.2.2, 7.2.2.3, 7.6, 7.8.1 and 7.9 do not apply.”
3 Modifications to Clause 8, “Marking”
In 8.1, item i), replace “IEC 60670-24” with “EN 60670-24”.
In 8.1, replace the sentence before item g) with:

“The following information shall be marked on the boxes and enclosures or provided by the

manufacturer on the smallest package unit or in the manufacturer’s instructions which need not be

provided with the product.”
4 Modifications to Clause 10, “Protection against electric shock”
Delete the sentence “Deletion of the 2 paragraph.”
In 10.101, replace item a) with:
“a) covers live parts of the installed equipment with insulation material, and”
In 10.101, replace “IEC 61032” with “EN 61032”.

In 10.101, replace the paragraph after “Tests shall be carried out on parts which are accessible after

installation.” with:

“In addition, all enclosures according to 7.1.1, 7.1.3 and 7.1.4 with parts of thermoplastic or

elastomeric material shall be subjected for 1 min to a force applied through the tip of test probe C of

EN 61032 but at an ambient temperature of (35 ± 2) °C, the enclosure being at this temperature.”

5 Modifications to Clause 12, “Construction”
Replace the title numbering and the title of 12.11 with:

“12.12 Fixing of flush type and semi-flush type enclosures classified according to 7.2.2.1”

In 12.12, replace the paragraph below “Replacement:” with:

“Enclosures for hollow walls classified according to 7.2.2.1 shall provide suitable means for fixing the

enclosure to hollow walls.”
At the end of 12.12, add:
“12.13 Boxes and enclosures classified according to 7.2.2.2 and 7.2.2.3
Replacement:
void.”
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
6 Modification to Clause 15, “Mechanical strength”
In 15.101, add at the end:

“After the test, the specimens shall show no damage leading to non-compliance with the standard.

Damage to the finish, small dents and small chips which do not adversely affect the protection against

electric shock or harmful ingress of water are disregarded.

Cracks passing through the material not visible with normal or corrected vision without magnification,

surface cracks in fibre-reinforced mouldings and small indentations are disregarded.”

7 Modification to Clause 16, “Resistance to heat”
Replace the text of Clause 16 with:
“This clause of Part 1 is applicable with following modification:

Deletion of 16.3 "Boxes and enclosures of insulation materials classified according to 7.2.2 or

7.2.2.3" ”
8 Modification to Clause 18, “Resistance of insulating material to abnormal
heat and to fire”
Replace the text of Clause 18 with:
“This clause of Part 1 is applicable with the following modifications:
Replacement of the bullet points by the following:
— By test made at 960 °C

— for parts of insulating material necessary to retain current-carrying parts in position.

— By the test made at 850 °C

— for parts of insulating material, necessary to retain parts of the earthing circuit in position

(with the exception of parts of insulating material needed to retain the earth terminal in

position in an enclosure), and

— for parts of insulating material of boxes and enclosures classified according to 7.2.2.1, with

the exception of parts protruding from the wall and additional and/or removable internal parts

of enclosure (eg. separator) not necessary to retain current carrying parts in position.

— By the test made at 650 °C

— for parts of insulating material not necessary to retain current-carrying parts in position (even

though they are in contact with them), and
— for parts of insulating material retaining earthing terminal in position.

— for parts of insulating material of boxes and enclosures classified according to 7.2.2.1,

protruding from the wall and additional and/or removable internal parts of enclosure (eg.

separator) not necessary to retain current carrying parts in position.

NOTE Accessories complying with other standards, e.g. connecting devices incorporated but not integrated into

the enclosure, are not considered as part of the enclosures.”
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
9 Modifications to Clause 101, “Verification of the maximum capability to
dissipate power (P )”
th th th
Replace the 10 , 11 and 12 sentence with:

“For enclosures according to 7.2.1.1 and 7.2.2.1 the test is carried out with the specimen mounted as

declared by the manufacturer.

For enclosures according to 7.2.3 the specimen is mounted on a minimum 19 mm thick plywood

painted black.

For enclosures according to 7.2.1.2 and 7.2.1.3the test is carried out with the specimen cast in a

concrete wall of thickness not less than 100 mm on each surface; it is allowed to cast the specimen in

walls of different material, with equivalent thermal conductivity.”
10 Modifications to Clause 102, “Verification of temperature rise”
th th th
Replace the 7 , 8 and 9 sentence with:

“For enclosures according to 7.2.1.1 and 7.2.2.1 the test is carried out with the specimen mounted as

declared by the manufacturer.

For enclosures according to 7.2.3.1 the test is carried out with the specimen cast in a concrete wall of

thickness not less than 100 mm on each surface; it is allowed to cast the specimen in walls of different

material, with equivalent thermal conductivity.

For enclosures according to 7.2.3 the specimen is mounted on a minimum 19 mm thick plywood

painted black.”
In the Keys to Figures 103 and 104, add the following additional line:

“= the resistor is placed at equal distance from both sides with a tolerance on the difference of

±5 mm.”
11 Addition of Clause Z1, "Electromagnetic fields (EMF) requirements"
Add the following clause Z1:
"Z1 Electromagnetic fields (EMF) requirements
This clause of Part 1 is applicable."
12 Modifications to Annex AA, “Instructions to be given by the manufacturer
of the GP enclosure to the installer how to integrate accessories, and
example of calculation”
In AA.1, replace the second equation with:
“ P = P + 0,2 P + P + P + 0,2 P “
tot dp dp au el el
and in the term definition for this equation, add:

P is the power loss of electronic accessories, in watt, taking into account the utilization factor

(K ) for multi way devices

0,2 P is the increase of P to consider power lost by connections of the power circuit of

el el
electronic devices”
Replace the title of AA.3 as follows:
“AA.3 Example of calculation without electronic devices”
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
Add the following subclause AA.5:

AA.5 Example of calculation to take into account the power loss of electronic devices

AA.5.1 General
The calculation is based on the following steps:
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
AA.5.2 Diagram of the equipped GP enclosure
Figure AA.1 — Diagram of the equipped GP enclosure
AA.5.3 Calculation of the power loss within the equipped GP enclosure
Determination of the utilisation factor (K ) and of the diversity factor (K)
— Level 0 incoming circuit - K = 0,85
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SIST EN 60670-24:2013/oprAA:2021
EN 60670-24:2013/prAA:2021 (E)
— Level 1 circuits
...