IEC 60855-1:2009

IEC 60855-1 ®
Edition 1.0 2009-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Insulating foam-filled tubes and solid rods –
Part 1: Tubes and rods of a circular cross-section

Travaux sous tension – Tubes isolants remplis de mousse et tiges isolantes –
Partie 1: Tubes et tiges de section circulaire

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IEC 60855-1 ®
Edition 1.0 2009-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Insulating foam-filled tubes and solid rods –
Part 1: Tubes and rods of a circular cross-section

Travaux sous tension – Tubes isolants remplis de mousse et tiges isolantes –
Partie 1: Tubes et tiges de section circulaire

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
V
CODE PRIX
ICS 13.260; 29.240.20; 29.260 ISBN 978-2-88910-314-0
– 2 – 60855-1 © IEC:2009
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .7
4 Requirements .8
4.1 Materials and design .8
4.2 Electrical requirements.8
4.3 Mechanical requirements.8
4.4 Tolerance requirements on outer diameters.8
4.5 Marking .9
4.6 Packaging .9
5 Testing provisions .9
5.1 General .9
5.2 Type test conditions .9
5.2.1 General .9
5.2.2 Groups and test pieces.10
5.3 Visual and dimensional checks.10
5.3.1 General .10
5.3.2 Visual check .10
5.3.3 Dimensional check .10
5.4 Electrical tests.11
5.4.1 Dielectric test under dry condition.11
5.4.2 Dielectric test after exposure to water.12
5.4.3 Wet test.19
5.5 Mechanical tests .21
5.5.1 Bending test .21
5.5.2 Torsion test .23
5.5.3 Crushing test on tube .25
5.5.4 Electrical test after mechanical ageing.26
5.5.5 Dye penetration test .27
5.5.6 Durability of marking.27
6 Conformity assessment of tubes and rods having completed the production phase.27
7 Modifications .27
Annex A (informative) Usual outer diameters .28
Annex B (normative) Plan of carrying out of the type tests .29
Annex C (normative) Classification of defects and associated requirements and tests .30
Bibliography.31

Figure 1 – Dielectric test under dry condition – Typical test arrangement.11
Figure 2 – Dielectric test after exposure to water – Typical test arrangement.13
Figure 3 – Dielectric test after exposure to water – Assembly diagram of the test piece
to the guard electrodes .14
Figure 4 – Dielectric test after exposure to water – Constructional drawings for guard

electrodes and parts .16

60855-1 © IEC:2009 – 3 –
Figure 5 – Examples of constructional drawings for guard electrode parts according to
some test piece diameters .17
Figure 6 – Wet test .21
Figure 7 – Bending test.22
Figure 8 – Torsion test – Examples for fixing tube or rod .24
Figure 9 – Crushing test.26

Table 1 – Tolerances on outer diameter d .8
Table 2 – Maximum values for the current I .19
Table 3 – Values of F , f and F for bending test .23
d r
Table 4 – Values of C , a and C for torsion test .25
d d r
Table 5 – Values of F and F for crushing test .25
d r
Table A.1 – Usual diameters.28
Table B.1 – Chronological order of the type tests.29
Table C.1 – Classification of defects and associated requirements and tests .30

– 4 – 60855-1 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIVE WORKING –
INSULATING FOAM-FILLED TUBES AND SOLID RODS –

Part 1: Tubes and rods of a circular cross-section

FOREWORD
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