IEC TS 61439-7:2014

IEC TS 61439-7 ®
Edition 1.0 2014-02
TECHNICAL
SPECIFICATION
SPECIFICATION
TECHNIQUE
Low-voltage switchgear and controlgear assemblies –
Part 7: Assemblies for specific applications such as marinas, camping sites,
market squares, electric vehicles charging stations

Ensembles d’appareillage à basse tension –
Partie 7: Ensembles pour installations publiques particulières telles que
marinas, terrains de camping, marchés et emplacements analogues et pour
borne de charge de véhicules électriques

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IEC TS 61439-7 ®
Edition 1.0 2014-02
TECHNICAL
SPECIFICATION
SPECIFICATION
TECHNIQUE
Low-voltage switchgear and controlgear assemblies –

Part 7: Assemblies for specific applications such as marinas, camping sites,

market squares, electric vehicles charging stations

Ensembles d’appareillage à basse tension –

Partie 7: Ensembles pour installations publiques particulières telles que

marinas, terrains de camping, marchés et emplacements analogues et pour

borne de charge de véhicules électriques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 29.130.20 ISBN 978-2-8322-1424-4

– 2 – TS 61439-7 © IEC:2014
CONTENTS
FOREWORD . 3

1 Scope . 6

2 Normative references . 6

3 Terms and definitions . 7

4 Symbols and abbreviations . 9

5 Interface characteristics . 9

6 Information . 9

7 Service conditions . 10
8 Constructional requirements . 10
9 Performance requirements . 13
10 Design verification . 13
11 Routine verification . 22
Annexes . 23
Annex C (informative) User information template . 23
Annex P (normative) Verification of the short-circuit withstand strength of busbar
structures by comparison with a tested reference design by calculation . 23
Annex AA (informative) Items subject to agreement between the ASSEMBLY
manufacturer and the user . 24
Annex BB (informative) Design verification . 28
Annex CC (informative) List of notes concerning certain countries . 29
Bibliography . 30

Figure 101 – Striker element for test of resistance to mechanical shock impacts
induced by sharp-edged objects. 13
Figure 102 – Diagram of test to verify the resistance to static load . 15
Figure 103 – Sandbag for test to verify the resistance to shock load . 16
Figure 104 – Diagram of test to verify resistance to shock load . 17
Figure 105 – Diagram of test to verify resistance to torsional stress . 19
Figure 106 – Diagram of test to verify the mechanical strength of doors . 20
Figure 107 – Striker element for test of resistance to mechanical shock impacts
induced by sharp-edged objects. 20

Table 101 – Values of assumed loading . 22
Table AA.1 – Items subject to agreement between the ASSEMBLY manufacturer and the
user 24
Table BB.1 – List of design verifications to be performed . 28

TS 61439-7 © IEC:2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –

Part 7: Assemblies for specific applications such as marinas, camping

sites, market squares, electric vehicles charging stations

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification.
This document is being issued in the technical specification series of publications (according
to the ISO/IEC Directives, Part 1, 3.1.1.1) as a “prospective standard for provisional
application” in the field of SC 17D because there is an urgent need for guidance on how
standards in this field should be used to meet an identified need.
This document is not to be regarded as an “International Standard”. It is proposed for
provisional application so that information and experience of its use in practice may be
gathered. Comments on the content of this document should be sent to the IEC Central
Office.
– 4 – TS 61439-7 © IEC:2014
A review of this technical specification will be carried out not later than 2 years after its

publication with the options of: extension for another 3 years; conversion into an International

Standard; or withdrawal.
IEC/TS 61439-7, which is a technical specification, has been prepared by subcommittee 17D:

Low-voltage switchgear and controlgear assemblies, of IEC technical committee 17:

Switchgear and controlgear.
The text of this technical specification is based on the following documents:

FDIS Report on voting
17D/478/FDIS 17D/482/RVD
Following the result of the vote on the FDIS, a questionnaire was circulated, leading to the
decision to publish the project as a Technical Specification.
Questionnaire Result of voting
17D/487/Q 17D/494/RQ
Full information on the voting for the approval of this technical specification can be found in
the report on voting indicated in the above table.
This technical specification is to be read in conjunction with IEC 61439-1. The provisions of
the general rules dealt with in IEC 61439-1 (hereinafter referred to as Part 1) are applicable to
this technical specification where they are specifically cited. When this technical specification
states “addition” “modification” or “replacement”, the relevant text in Part 1 is to be adapted
accordingly.
Subclauses that are numbered with a 101 (102, 103, etc.) suffix are additional to the same
subclause in Part 1.
Tables and figures in this Part 7 that are new are numbered starting with 101.
New annexes in this Part 7 are lettered AA, BB, etc.
In this standard, terms written in small capitals are defined in Clause 3.
The reader’s attention is drawn to the fact that Annex CC lists all of the “in-some-country”
clauses on differing practices of a less permanent nature relating to the subject of this

technical specification .
A list of all parts of the IEC 61439 series, under the general title Low-voltage switchgear and
controlgear assemblies can be found on the IEC website.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

TS 61439-7 © IEC:2014 – 5 –
The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be

• transformed into an International standard,

• reconfirmed,
• withdrawn,
• replaced by a revised edition, or

• amended.
– 6 – TS 61439-7 © IEC:2014
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –

Part 7: Assemblies for specific applications such as marinas, camping

sites, market squares, electric vehicles charging stations

1 Scope
NOTE 1 Throughout this technical specification , the terms AMHS (see 3.1.101), ACCS (see 3.1.102), AMPS (see
3.1.103), ACSEV (see 3.1.104) are used for low-voltage switchgear and controlgear assemblies intended for use
respectively in marinas and similar locations (AMHS), camping sites and similar locations (ACCS), market squares
and other similar external public sites (AMPS), charging stations (ACSEV). The term ASSEMBLIES is used for
indicating all the boards.
This Part of IEC 61439, which is a Technical Specification, defines the specific requirements
of ASSEMBLIES as follows:
– ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V
in case of d.c;
– stationary or movable ASSEMBLIES with enclosure;
– ASSEMBLIES intended for use in connection with the generation, transmission, distribution
and conversion of electric energy, and for the control of electric energy consuming
equipment;
– ASSEMBLIES operated by ordinary persons;
– ASSEMBLIES intended to be installed and used in marinas, camping sites, market squares
and other similar external public sites or similar sites;
– ASSEMBLIES intended for charging stations for electric vehicles.
NOTE 2 ASSEMBLIES intended for charging stations for electric vehicles (ACSEV) are designed to integrate
the functionality for electric vehicle conductive charging systems according to IEC 61851-1.
This technical specification applies to all ASSEMBLIES whether they are designed,
manufactured and verified on a one-off basis or fully standardised and manufactured in
quantity.
The manufacture and/or assembly may be carried out other than by the original manufacturer
(see 3.10.1 of Part 1).
This technical specification does not apply to individual electrical equipment and self-
contained components, such as circuit breakers, fuse switches, electronic equipment, etc.
which comply with the relevant product standards.
NOTE 3 Where electrical equipment is directly connected to public low voltage supply system and equipped with
a meter for billing of the legal provider of the low voltage supply, particular requirements based on national
regulations apply, if any.
This technical specification does not apply to boxes and enclosures for electrical accessories
for household and similar fixed electrical installations as defined in IEC 60670-24.
2 Normative references
This clause of Part 1 applies except as follows.
Addition:
IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests

TS 61439-7 © IEC:2014 – 7 –
IEC 60364-4-43, Low-voltage electrical installations – Part 4-43: Protection for safety –

Protection against overcurrent

IEC 60364-7-708, Low-voltage electrical installations – Part 7-708: Requirements for special

installations or locations – Caravan parks, camping parks and similar locations

IEC 60364-7-709, Low-voltage electrical installations – Part 7-709: Requirements for special

installations or locations – Marinas and similar locations

IEC 60364-7-722 , Low-voltage electrical installations – Part 7-722: Requirements for special

installations or locations – Supply of electric vehicle

IEC 60364-7-740, Electrical installations of buildings – Part 7-740: Requirements for special
installations or locations – Temporary electrical installations for structures, amusement
devices and booths at fairgrounds, amusement parks and circuses
IEC 61439-1:2011, Low-voltage switchgear and controlgear assemblies – Part 1: General
rules
3 Terms and definitions
This clause of Part 1 applies except as follows.
3.1 General terms
Additional terms:
3.1.101
low voltage switchgear and controlgear ASSEMBLY for marinas and harbors sites
AMHS
combination of one or more transforming or switching devices together with associated
control, measuring, signaling, protective and regulating equipment, with all their internal
electrical and mechanical interconnections and structural parts, designed and built for use in
all marinas, harbors and similar sites
3.1.102
ASSEMBLY for camping and caravan sites
low voltage switchgear and controlgear
ACCS
combination of one or more transforming or switching devices together with associated
control, measuring, signaling, protective and regulating equipment, with all their internal
electrical and mechanical interconnections and structural parts, designed and built for use in

all camping, caravan and similar sites
3.1.103
low voltage switchgear and controlgear ASSEMBLY for markets and other external public
sites
AMPS
combination of one or more transforming or switching devices together with associated
control, measuring, signaling, protective and regulating equipment, with all their internal
electrical and mechanical interconnections and structural parts, designed and built for use in
all market squares and other similar external public sites
___________
To be published.
– 8 – TS 61439-7 © IEC:2014
3.1.104
low voltage switchgear and controlgear ASSEMBLY for electric vehicles charging stations

ACSEV
combination of one or more transforming or switching devices together with associated

control, measuring, signaling, protective and regulating equipment, with all their internal

electrical and mechanical interconnections and structural parts, designed and built for electric

vehicles charging stations
Note 1 to entry: Electric vehicles conductive charging systems as described in IEC 61851-1 are included.

Modifications:
3.3 External design of ASSEMBLIES
3.3.1
open-type ASSEMBLY
This term of Part 1 does not apply.
3.3.2
dead-front ASSEMBLY
This term of Part 1 does not apply.
3.5 Conditions of installation of ASSEMBLIES
3.5.4
movable ASSEMBLY
Addition of a new note to entry:
Note 1 to entry: Stationary or movable ASSEMBLIES are intended to be connected to supply by either fixed or
temporary connections e.g plugs and socket outlets.
Additional terms:
3.5.101
ground-mounted stationary ASSEMBLY
stationary ASSEMBLY intended to be installed at ground level on a foundation
3.5.102
transportable ASSEMBLY
semi-fixed ASSEMBLY
ASSEMBLY intended for use in a place where it is not permanently fixed; its location
movable
may vary during use on the same site

3.5.103
restricted access
access to the ASSEMBLY, limited e.g. by private housing, private camping areas or similar
places
3.5.104
non-restricted access
unlimited access to the ASSEMBLY for all persons e.g public areas
3.101
water and other fluids system
part of the ASSEMBLY which contains water tubes, valves, joins and taps as service to
connected user
EXAMPLES: Campers, caravans, vessels, etc.

TS 61439-7 © IEC:2014 – 9 –
4 Symbols and abbreviations
This clause of Part 1 applies.

5 Interface characteristics
This clause of Part 1 applies except as follows.

5.4 Rated diversity factor (RDF)

Addition:
In the absence of information concerning the actual load currents, the assumed loading of the
outgoing circuits of the ASSEMBLY or group of outgoing circuits may be based on the values in
Table 101.
Table 101 does not apply for ACSEV. For ACSEV the diversity factor of the outgoing circuit
supplying directly the connecting point (e.g. the socket-outlet) shall be taken as equal to 1.
The diversity factor of the distribution circuit supplying multiple connecting points may be
reduced if a load control is available.
NOTE For ACSEV it is considered that in normal use each single connecting point is used at its rated current.
5.6 Other characteristics
Replacement of the item g):
g) intended for use by ordinary persons (see 3.7.14 of Part 1);
Additional item:
q) restricted access or non-restricted access (see 3.5.103 and 3.5.104).
6 Information
This clause of Part 1 applies except as follows.
6.1 ASSEMBLY designation marking
Replacement of the whole text of this subclause:

The ASSEMBLY manufacturer shall provide each ASSEMBLY with one or more labels, marked in
a durable manner and located in a place such that they are visible and legible when the
ASSEMBLY is installed and in operation.
Compliance is checked according to the test of 10.2.7 of Part 1 and by inspection.
The following information regarding the ASSEMBLY shall be provided on the label(s):
a) ASSEMBLY manufacturer's name or trade mark (see 3.10.2 of Part 1);
b) type designation or identification number or any other means of identification, making it
possible to obtain relevant information from the ASSEMBLY manufacturer;
c) means of identifying date of manufacture;
d) IEC 61439-7;
e) type of current and frequency in case of a.c (see 5.3.4 of Part 1);
f) rated voltage (U ) (of the ASSEMBLY) (see 5.2.1 of Part 1);
n
– 10 – TS 61439-7 © IEC:2014
g) rated current of the ASSEMBLY (I ) (see 5.3.1 of Part 1) for movable ASSEMBLIES;
nA
h) degree of protection;
i) the weight, for transportable ASSEMBLIES (see 3.5.102), where it exceeds 30 kg;

j) AMHS (see 3.1.101), ACCS (see 3.1.102), AMPS (see 3.1.103), ACSEV (see 3.1.104) or

equivalent terms.
6.2.1 Information relating to the ASSEMBLY

Replacement of the whole text of this subclause:

The following additional information, where applicable, shall be provided in the ASSEMBLY

manufacturer’s technical documentation supplied with the ASSEMBLY:
k) rated operational voltage (U ) (of a circuit) (see 5.2.2 of Part 1);
e
l) rated impulse withstand voltage (U ) (see 5.2.4 of Part 1);
imp
m) rated insulation voltage (U ) (see 5.2.3 of Part 1);
i
n) rated current of each circuit (I ) (see 5.3.2 of Part 1);
nc
o) rated frequency (f ) (see 5.5 of Part 1);
n
p) rated diversity factor(s) (RDF) (see 5.4);
q) all necessary information relating to the other declared classifications and characteristics
(see 5.6);
r) overall dimensions (including projections e.g handles, covers, doors).
7 Service conditions
This clause of Part 1 applies except as follows.
7.2 Special service conditions
Addition:
NOTE Exposure to traffic vibration is a normal service condition for ground mounted ASSEMBLIES.
8 Constructional requirements
This clause of Part 1 applies except as follows.
8.2 Degree of protection provided by an ASSEMBLY enclosure

8.2.1 Protection against mechanical impact
Replacement of the whole text of this subclause:
8.2.1.1 ASSEMBLIES in locations with restricted access
The mechanical properties of an ASSEMBLY intended to be installed in areas with restricted
access shall comply with 10.2.101 of this technical specification.
The minimum degree of protection against mechanical impact provided by the ASSEMBLY
enclosure shall be IK07 according to IEC 62262.
8.2.1.2 ASSEMBLIES in locations with non-restricted access
The mechanical properties of an ASSEMBLY intended to be in non-restricted access areas shall
comply with 10.2.102 of this technical specification.

TS 61439-7 © IEC:2014 – 11 –
For wall mounted ASSEMBLIES the minimum degree of protection against mechanical impact

shall be IK08.
For ground mounted ASSEMBLIES the minimum degree of protection against mechanical impact

shall be IK10.
8.2.2 Protection against contact with live parts, ingress of solid foreign bodies and

water
nd rd th
Replacement of the 2 , 3 and 4 paragraph:

After installation in accordance with the manufacturer's instructions, the degree of protection
of an indoor ASSEMBLY shall be at least IP41 and of an outdoor ASSEMBLY IP44, according to
IEC 60529.
The degree of protection shall be ensured also when the supply cords are plugged into the
ASSEMBLY.
8.4 Protection against electric shock
8.4.3.1 Installation conditions
Additional subclauses:
If the protective measure of protection by automatic disconnection of the supply is used, the
ASSEMBLY shall allow compliance with the relevant requirements of
IEC 60364-7-709 (AMHS) or
IEC 60364-7-708 (ACCS) or
IEC 60364-7-740 (AMPS) or
IEC 60364-7-722 (ACSEV).
8.4.3.3 Electrical separation
Additional paragraph:
If the protective measure of electrical separation is used, the ASSEMBLY shall allow compliance
with the relevant requirements of
IEC 60364-4-41 (AMPS, ACCS and ACSEV) or
IEC 60364-7-709 (AMHS).
8.5 Incorporation of switching devices and components
8.5.3 Selection of switching devices and components
Additional NOTE:
NOTE According to the relevant installation standards IEC 60364 (series), consideration of the need for
overvoltage protection (SPDs) complying with a relevant IEC standard (for example IEC 61643) to prevent possible
damage to the installation is to be taken into account.
8.5.6 Barriers
This subclause of Part 1 does not apply.
Additional subclauses:
– 12 – TS 61439-7 © IEC:2014
8.5.101 Protection against overcurrent

For protection against overcurrent, the ASSEMBLY shall allow compliance with the relevant

requirements of:
IEC 60364-7-709 for AMHS
IEC 60364-7-708 for ACCS
IEC 60364-4-43 or IEC 60364-7-740 if applicable for AMPS

IEC 60364-7-722 for ACSEV.
Devices for protection against overcurrent shall comply with a relevant IEC standard.

8.5.102 Protection against electric shocks
For protection against electric shocks, the ASSEMBLY shall allow compliance with the relevant
requirements of:
IEC 60364-7-709 for AMHS
IEC 60364-7-708 for ACCS
IEC 60364-4-43 or IEC 60364-7-740 if applicable for AMPS
IEC 60364-7-722 for ACSEV.
Devices for protection against electric shocks shall comply with a relevant IEC standard.
8.5.103 Socket-outlets general
For socket-outlets, the ASSEMBLY shall allow compliance with the relevant requirements of:
IEC 60364-7-709 for AMHS
IEC 60364-7-708 for ACCS
IEC 60364-4-43 or IEC 60364-7-740 if applicable for AMPS
IEC 60364-7-722 for ACSEV.
Socket-outlets shall comply with the relevant standards.
Additional subclauses:
8.101 Supports and securing devices of ASSEMBLY
8.101.1 Handling provisions
In case of movable ASSEMBLIES, handles (or any other equivalent system) shall be provided on
ASSEMBLY and be firmly attached to the enclosure or supporting framework.
the
8.101.2 Water and other fluid systems
Water and other fluid systems may be installed in the enclosure but a separated compartment
shall be provided.
The separation between each compartment shall have a degree of protection of at least IP44
in accordance with IEC 60529.
8.101.3 Other services
Other services (e.g. telecommunication, Internet) may be installed in the same enclosure but
providing that any unacceptable interferences are not created.

TS 61439-7 © IEC:2014 – 13 –
9 Performance requirements
This clause of Part 1 applies.

10 Design verification
This clause of Part 1 applies except as follows.

10.2.6 Mechanical impact
This subclause of Part 1 does not apply.
Additional subclauses:
10.2.101 Verification of mechanical strength for ASSEMBLIES intended to be installed in
an area with restricted access
10.2.101.1 Verification of resistance to mechanical shock impacts induced by sharp
edged objects
This test is subjected to an agreement between manufacturers and users.
If agreed between manufacturer and user, the following tests shall be carried out on all
ground-mounted stationary ASSEMBLIES intended to be installed outdoor.
The test shall be carried out using an impact apparatus as described in IEC 60068-2-75 but
having a steel striker element instead of the sandbag with a mass of 5 kg and having the end
profiled as shown in Figure 101.

Cone
22°
Hemisphere
IEC  2578/10
Figure 101 – Striker element for test of resistance
to mechanical shock impacts induced by sharp-edged objects

The striker element shall be raised through a height of 0,4 m and allowed to drop and impact
the surface of the ASSEMBLY under test, thus providing an impact energy of 20 J.
Each test shall consist of one blow aimed at the centre of each of the vertical surfaces of the
ASSEMBLY which are visible when the ASSEMBLY is installed in its normal service position.
Blows shall not be applied on components mounted externally to the enclosure e.g. socket-
outlets, push-buttons, displays etc.
Separate enclosures may be used for each of the test blows.
If the enclosure is of a cylindrical form, the test consists of three blows positioned with an
angular displacement of 120°.
∅2,5
– 14 – TS 61439-7 © IEC:2014
Test 1 shall be carried out at an ambient air temperature between 10 °C and 40 °C after the

ASSEMBLY has been kept within these temperatures for not less than 12 h.

Test 2 shall be carried out at an ambient air temperature between 10 °C and 40 °C

immediately after the ASSEMBLY has been kept at a temperature of –25 (+0;-5) °C for a period

of not less than 12 h.
Compliance is checked by inspection that cracks resulting from the blows are contained within

a circle of diameter not exceeding 15 mm. If the tip of the striker element has penetrated the

enclosure of the ASSEMBLY, it shall not be possible to insert a gauge of 4 mm diameter having

a hemispherical tip, applied to the hole with a force of 5 N.

10.2.101.2 Verification of resistance to mechanical impact
Mechanical impact tests where required by the specific ASSEMBLY standard or technical
specification are to be carried out in accordance with IEC 62262.
10.2.102 Verification of mechanical strength for ASSEMBLIES intended to be installed
in an area with non restricted access
10.2.102.1 General
The tests shall be carried out at an ambient temperature of between 10 °C and 40 °C.
With the exception of the test of 10.2.102.6, a new sample ASSEMBLY may be used for each of
the independent tests. If the same sample ASSEMBLY is used for more than one test of
10.2.102, the compliance check for the second numeral of the degree of protection (IP code)
need only be applied when the tests on that sample have been completed.
All tests shall be carried out with the ASSEMBLY fixed at its normal service mounting and,
where appropriate, added support at normal ground level as indicated in Figure 104a and
Figure 104b.
With the exception of the test of 10.2.102.4 of this technical specification, the door(s) of the
ASSEMBLY, if applicable, shall be locked at the commencement of the test and remain locked
for the duration of the test.
With the exception of the test of 10.2.102.7, those tests do not apply to wall mounted surface
type ASSEMBLIES (see 3.3.9 of Part 1) and to wall mounted recessed type ASSEMBLIES (see
3.3.10 of Part 1).
10.2.102.2 Verification of resistance to static load

The following tests shall be carried out on all types ground-mounted stationary ASSEMBLIES
intended to be installed in non-restricted access areas.
Test 1 An evenly distributed load of 8 500 N/m shall be applied for 5 min to the roof of the
enclosure (see Figure 102).
Test 2 A force of 1 200 N shall be applied for 5 min in turn to the front and back upper edges
of the roof of the enclosure (see Figure 102).
Test 3 A load of 60 N shall be applied for 5 min to each sidewall of the enclosure in turn. The
centre of the load shall be 20 mm from the edge of the sidewall under test and shall be spread
over a circular area of 10 mm diameter.

TS 61439-7 © IEC:2014 – 15 –
8 500 N/m
1 200 N
Evenly distributed load
Force
1 200 N
Force
IEC  0648/14
Figure 102 – Diagram of test to verify the resistance to static load
Compliance is checked by verification after the test that the minimum degree of protection is
in accordance with 8.2.2, and the operation of the door(s) and locking points are not impaired;
also by verification that the electrical clearances have remained satisfactory for the duration
of the tests and in the case of an ASSEMBLY having metallic enclosure, that no contact
between live parts and the enclosure has occurred caused by permanent or temporary
distortion.
Detachments, cracks or deterioration of aesthetical parts or components shall be disregarded.
10.2.102.3 Verification of resistance to shock load
The following tests shall be carried out on all types ground-mounted stationary ASSEMBLIES
intended to be installed in non-restricted access areas.
A bag in accordance with Figure 103 containing dry sand and having a total mass of 15 kg
shall be hung from an overhead support vertically above the surface under test and at least
1 m above the highest point of the ASSEMBLY.

– 16 – TS 61439-7 © IEC:2014
Loop for pendulum
Material: any suitable flexible material

which does not burst on impact

Sand grain size
0,5 … 0,8
Eye for lifting
and release
Seam - only on eye
side, striking side is
seamless
∅200
IEC  2574/10
Figure 103 – Sandbag for test to verify the resistance to shock load
Each test shall consist of one blow aimed at the upper part of each of the vertical surfaces of
the ASSEMBLY which are visible when the ASSEMBLY is installed in its normal service position.
Separate enclosures may be used for each of the test blows.
If the enclosure is of cylindrical form, the test consists of three blows positioned with an
angular displacement of 120°.
A test shall consist of raising the lifting eye through a height of 1 m and allowing the sandbag
to fall through a vertical arc to impact the approximate centre of the upper part of the surface
of the ASSEMBLY under test (see Figure 104a and Figure 104b).

Compliance is checked by verification after the test that the degree of protection remains in
accordance with 8.2.2, and the operation of the door(s) and locking points are not impaired;
also by verification that the electrical clearances have remained satisfactory for the duration
of the tests and, in the case of an ASSEMBLY having a metallic enclosure, that no contact
between live parts and the enclosure has occurred caused by permanent or temporary
distortion.
ASSEMBLY having an insulating enclosure, if the appropriate conditions are
In the case of an
satisfied, then damage such as small dents or small degrees of surface cracking or flaking are
disregarded, provided that there are no associated cracks detrimental to the serviceability of
the ASSEMBLY.
Detachments, cracks or deterioration of aesthetical parts or components shall be disregarded.
TS 61439-7 © IEC:2014 – 17 –
Dimensions in millimetres
Start position
Impact
position
Cabinet
Top edge of base
Base
Support as stated
by the manufacturer
IEC  0649/14
Figure 104a – Diagram of test to verify the resistance to
shock load of a ground-mounted ASSEMBLY with embedded base

Dimensions in millimetres
Start position
Impact
position
IEC  0650/14
Figure 104b – Diagram of test to verify the resistance to shock load
of a ground-mounted ASSEMBLY without embedded base
Figure 104 – Diagram of test to verify resistance to shock load
1 000
1 000
– 18 – TS 61439-7 © IEC:2014
10.2.102.4 Verification of resistance to torsional stress

The following tests shall be carried out on all types ground-mounted stationary ASSEMBLIES

intended to be installed in non-restricted access areas.

The test is carried out using a horizontally rotatable frame constructed from

60 mm × 60 mm × 5 mm angle iron, having vertical locations 100 mm long at the frame arm’s

extremities. The ASSEMBLY under test is rigidly fixed at its base and the frame closely fitted

over it, so that the end locations of the frame arm are in contact with the roof and walls of the
ASSEMBLY.
The ASSEMBLY, with the door(s) closed shall have a torsional force of 2 × 1 000 N applied for
30 s as shown in Figures 105a and 105b.
Dimensions in millimetres
Angle iron
60 × 60 × 5 length 100
Rotatable mounting device
F
F
Cabinet
Centre of rotation
F F
Force F = 1 000 N
Ground mounted Ground mounted
ASSEMBLY turned in a ASSEMBLY turned in a
clockwise direction counter clockwise direction
IEC  2575/10
Figure 105a – Diagram of test to verify the resistance to torsional stress
of a ground-mounted ASSEMBLY without embedded base

TS 61439-7 © IEC:2014 – 19 –
Dimensions in millimetres
Rotatable mounting device
Angle iron
60 × 60 × 5 length 100
Force F = 1 000 N
F F
Cabinet
Centre of rotation
F F
Top edge of base
Base
Support as stated
by the manufacturer
Ground mounted Ground mounted
ASSEMBLY turned in a ASSEMBLY turned in a
clockwise direction counter clockwise direction
IEC  2576/10
Figure 105b – Diagram of test to verify the resistance to torsional stress
of a ground-mounted ASSEMBLY with embedded base
Figure 105 – Diagram of test to verify resistance to torsional stress
Compliance is checked by verifying that the doors(s) remain closed for the duration of the test
and by verification after the test that the degree of protection remains in accordance with
8.2.2.
Detachments, cracks or deterioration of aesthetical parts or components shall be disregarded.
10.2.102.5 Verification of mechanical strength of doors
The test applies to all types of ground mounted ASSEMBLIES having a door(s) hinged on a
vertical edge of the enclosure.
This test does not apply for doors inside the enclosure and for hinged lids in the enclosure.
The tests shall be carried out with the door(s) fully open
...