IEC 60584-3:2021

IEC 60584-3 ®
Edition 3.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Thermocouples –
Part 3: Extension and compensating cables – Tolerances and identification
system
Couples thermoélectriques –
Partie 3: Câbles d'extension et de compensation – Tolérances et système
d'identification
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IEC 60584-3 ®
Edition 3.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Thermocouples –
Part 3: Extension and compensating cables – Tolerances and identification

system
Couples thermoélectriques –
Partie 3: Câbles d'extension et de compensation – Tolérances et système

d'identification
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.200.20 ISBN 978-2-8322-9392-8

– 2 – IEC 60584-3:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General . 6
5 Tolerance values . 6
6 Colour coding . 7
6.1 Negative conductor . 7
6.2 Positive conductor . 7
6.3 Outer sheath . 7
6.4 Connectors . 7
7 Dimensions. 7
8 Requirements . 9
8.1 Materials . 9
8.1.1 Insulating materials . 9
8.1.2 Conductor materials. 9
8.2 Electromagnetic shielding . 9
8.3 Capacitance and inductance . 9
8.4 Resistance of positive or negative conductor and loop resistance of a cable . 9
8.5 Insulation resistance . 10
8.6 Dielectric strength . 10
9 Identification and shipping form . 10
9.1 Additional identification . 10
9.2 The shipping form and further information . 10
Annex A (informative) Examples for forms and sizes other than wires and stranded
wires . 11

Table 1 – Tolerance classes for extension and compensating cables . 6
Table 2 – Colour code of positive conductor insulation for extension and compensating
cables . 7
Table 3 – Nominal diameters of typical single strand (solid) wires . 8
Table 4 – Constructions and typical nominal cross-sectional area of multi-stranded
wires . 8
Table A.1 – Rods . 11
Table A.2 – Flat wires . 11
Table A.3 – Strips . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
THERMOCOUPLES –
Part 3: Extension and compensating cables –
Tolerances and identification system

FOREWORD
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International Standard IEC 60584-3 has been prepared by subcommittee 65B: Measurement
and control devices, of IEC Technical Committee 65: Industrial-process measurement, control
and automation.
This third edition cancels and replaces the second edition issued in 2007. This edition consti-
tutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) revision of tolerance values to take recent technological advancement into account,
b) addition of new colour coding for the thermocouple Type C and A in response to the newly
revised IEC 60584‑1 Edition 3: 2013,
c) creation of an annex to provide examples of sizes for the rod, flat wire and strip of the
compensating and extending conductors for thermocouples.

– 4 – IEC 60584-3:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
65B/1189/FDIS 65B/1191/RVD
Full information on the voting for
...