IEC 62549:2011

IEC 62549 ®
Edition 1.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Articulated systems and flexible systems for cable guiding

Systèmes articulés et souples pour guidage de câbles

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IEC 62549 ®
Edition 1.0 2011-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Articulated systems and flexible systems for cable guiding

Systèmes articulés et souples pour guidage de câbles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 29.120.10 ISBN 978-2-88912-756-6

– 2 – IEC 62549:2011/ISH1:2015  IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 62549
Edition 1.0  2011-10
ARTICULATED SYSTEMS AND FLEXIBLE SYSTEMS FOR CABLE GUIDING

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 23A: Cable management
systems, of IEC technical committee 23: Electrical accessories.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
23A/769/ISH 23A/783/RVD
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
Interpretation of Subclause 10.2 of IEC 62549 Ed.1.
10.2 Impact test
10.2.3 The impact to be applied is the one declared according to the classification in
Subclause 6.2.
Interpretation of Clause 13 of IEC 62549 Ed.1.
13 External influences
13.1.2 The classification to be checked is the one declared according to Subclause 6.5.1.
13.1.3 The classification to be checked is the one declared according to Subclause 6.5.2.
13.1.4 The classification to be checked is the one declared according to Subclause 6.5.3.

ICS 29.120.10
– 2 – 62549 © IEC:2011
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirements . 9
5 General conditions for tests . 9
6 Classification . 10
6.1 According to temperatures as given in Table 1 and Table 2 . 10
6.2 According to resistance to impact . 10
6.3 According to the installation onfloor . 11
6.4 According to electrical continuity characteristic . 11
6.5 According to degrees of protection, if any, provided by the system according
to IEC 60529:1989 . 11
7 Marking and documentation . 11
8 Dimensions . 12
9 Construction . 12
9.1 Sharp edges . 12
9.2 Minimum bending radius . 12
9.3 Cable retention . 13
9.4 Protection against ingress of solid foreign objects . 13
9.5 Protection against ingress of water . 14
9.6 Protection against access to hazardous parts . 14
9.7 Relieve terminals from strain . 14
9.8 Apparatus mounting . 15
9.9 Reliable connection to earth for accessible conductive parts . 16
9.10 Electrically protective separation . 16
9.11 Inlet openings . 16
9.12 Mechanical connections . 16
10 Mechanical properties . 17
10.1 Mechanical strength . 17
10.2 Impact test . 17
10.3 External load test for apparatus mounting . 19
10.3.1 Fixing test for apparatus mounting of socket-outlets . 19
10.3.2 Fixing test for apparatus mounting other than socket-outlets . 19
10.4 External load test . 19
10.4.1 Axial load test . 19
10.4.2 Compression test. 20
11 Electrical properties . 21
11.1 Electrical continuity . 21
11.2 Void . 22
12 Fire hazard . 22
12.1 Contribution to fire . 22
12.2 Void . 23
13 External influences . 23
13.1 Degree of protection provided by enclosure . 23

62549 © IEC:2011 – 3 –
13.1.2 Protection against ingress of solid foreign objects . 23
13.1.3 Protection against ingress of water . 23
13.1.4 Protection against access to hazardous parts . 24
14 Electromagnetic compatibility . 24
Annex A (normative) Summary of requirements to be applied to boxes . 38
Annex B (normative) IK code . 39
Bibliography . 40

Figure 1 – Example of articulated system for cable guiding . 24
Figure 2 – Examples of flexible system for cable guiding . 25
Figure 3 – Examples of application of systems for cable guiding . 29
Figure 4 – Minimum bending radius measurement . 29
Figure 5 – Examples of arrangements for cable retention tests . 30
Figure 6 – Typical apparatus for testing the resistance of cable anchorage to pull force . 31
Figure 7 – Typical apparatus for testing the resistance of cable anchorage to twist
force . 32
Figure 8 – Examples of arrangement for impact test . 34
Figure 9 – Examples of arrangement for axial load test . 36
Figure 10 – Arrangement for compression test . 37

Table 1 – Minimum application temperature . 10
Table 2 – Maximum application temperature . 10
Table 3 – Torque values for screwed connections . 14
Table 4 – Forces and torques to be applied to cable anchorage . 15

– 4 – 62549 © IEC:2011
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ARTICULATED SYSTEMS AND FLEXIBLE
SYSTEMS FOR
...