IEC 61196-1-111:2014

Coaxial communication cables - Part 1-111: Electrical test methods - Stability of phase test methods

IEC 61196-1-111:2014 applies to coaxial communication cables. It specifies methods for determining the stability of phase of coaxial communication cables.
- phase variation with temperature;
- phase constant variation with temperature;
- phase stability with bending;
- phase stability with twisting.
This second edition cancels and replaces the first edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- a revised clause on phase variation with temperature;
- a revised clause on phase stability with bending;
- a revised clause on phase stability with twisting.

General Information

• Status: Published
• Publication Date: 18-Jun-2014
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: SC 46A - Coaxial cables
• Drafting Committee: WG 3 - TC 46/SC 46A/WG 3
• Current Stage: DELPUB - Deleted Publication
• Start Date: 18-Sep-2024
• Completion Date: 05-Oct-2023

Relations

• Revises: IEC 61196-1-111:2005 - Coaxial communication cables - Part 1-111: Electrical test methods - Test for stability of phase constant
• Effective Date: 05-Sep-2023
• Revised: IEC 61196-1-111:2024 - Coaxial communication cables - Part 1-111: Electrical test methods - Stability of phase test methods
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61196-1-111 ®
Edition 2.0 2014-06
INTERNATIONAL
STANDARD
colour
inside
Coaxial communication cables –
Part 1-111: Electrical test methods – Stability of phase test methods

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IEC 61196-1-111 ®
Edition 2.0 2014-06
INTERNATIONAL
STANDARD
colour
inside
Coaxial communication cables –

Part 1-111: Electrical test methods – Stability of phase test methods

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
S
ICS 33.120.10 ISBN 978-2-8322-1660-6

– 2 – IEC 61196-1-111:2014  IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Phase variation with temperature . 8
4.1 Purpose . 8
4.2 Equipment . 8
4.3 Test sample . 8
4.4 Test environment . 9
4.5 Preconditioning . 9
4.6 Test procedure . 9
4.7 Test result. 11
4.7.1 Calculation of temperature coefficient of phase. 11
4.7.2 Graph of phase temperature change . 12
4.7.3 Maximum variation value of phase variation with temperature . 12
4.7.4 Ratio of the relative phase temperature coefficient . 12
4.8 Test report . 12
4.9 Requirement . 12
5 Phase constant variation with temperature . 12
5.1 Purpose . 12
5.2 Equipment . 13
5.3 Test sample . 13
5.4 Test environment . 13
5.5 Preconditioning . 13
5.6 Test procedure . 13
5.7 Test result. 13
5.8 Test report . 14
5.9 Requirement . 14
6 Phase stability with bending . 14
6.1 Purpose . 14
6.2 Test environment . 14
6.3 Test sample . 14
6.4 Equipment . 15
6.5 Test procedure . 15
6.6 Test report . 16
6.7 Requirement . 17
7 Phase stability with twisting . 17
7.1 Purpose . 17
7.2 Test environment . 17
7.3 Test sample . 17
7.4 Equipment . 17
7.5 Test procedure . 18
7.6 Test report . 18
7.7 Requirement . 19

Annex A (informative) Example for recording and calculating the phase variation with
temperature . 20

Figure 1 – Test sample (TS) . 9
Figure 2 – Preconditioning . 9
Figure 3 – TS placement diagram . 10
Figure 4 – Phase–frequency graph schematic diagram . 11
Figure 5 – Test sample (TS) . 15
Figure 6 – Bending test . 16
Figure 7 – Test graph schematic diagram . 17
Figure 8 – Twist test . 18
Figure 9 – Test graph schematic diagram . 19
Figure A.1 – η – T (°C) graph . 21
t,f
Table A.1 – Test record and calculation . 20

– 4 – IEC 61196-1-111:2014  IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COAXIAL COMMUNICATION CABLES –

Part 1-111: Electrical test methods –
Stability of phase test methods

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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.
International Standard IEC 61196-1-111 has been prepared by subcommittee 46A: Coaxial
cables, of IEC technical committee 46: Cables, wires, waveguides, R.F. connectors, R.F. and
microwave passive components and accessories.
The text of this standard is based on the following documents:
FDIS Report on voting
46A/1188A/FDIS 46A/1212/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

This second edition cancels and replaces the first edition published in 2005. This edition
constitutes a technical revision. This edition includes the following significant technical
changes with respect to the previous edition:
– a new Clause 4 Phase variation with temperature;
– a new Clause 6 Phase stability with bending;
– a new Clause 7 Phase stability with twisting.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61196 series, published under the general title Coaxial
communication cables, can be found on the IEC website.
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
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 61196-1-111:2014  IEC 2014
COAXIAL COMMUNICATION CABLES –

Part 1-111: Electrical test methods –
Stability of phase test methods

1 Scope
This part of IEC 61196 applies to coaxial communication cables. It specifies methods for
determining the stability of phase of coaxial communication cables.
• phase variation with temperature (Clause 4);
• phase constant variation with temperature (Clause 5);
• phase stability with bending (Clause 6);
• phase stability with twisting (Clause 7).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61196-1, Coaxial communication cables – Part 1: Generic specification – General,
definitions and requirements
IEC 61196-1-108:2011, Coaxial communication cables – Part 1-108: Electrical test methods –
Test for characteristic impedance, phase and group delay, electrical length and propagation
velocity
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61196-1, as well as
the following apply.
3.1
temperature coefficient of phase
η
tf,
coefficient defined at the specified frequency f, as the ratio of the phase difference ∆ϕ
t,f
between ϕ at 25 °C and ϕ at temperature t, and the total phase Φ at 25 °C
25 °C,f t,f 25 °C,f
ϕϕ−∆ϕ
25℃, f tf, tf,
η (1)
tf,
ΦΦ
25℃, ff25℃,
where
ϕ is the phase at temperature t and frequency f, in (°);
t,f
ϕ is the phase at 25 °C and frequency f, in (°);
25 °C,f
∆ϕ is the phase difference between ϕ and ϕ at frequency f, in (°);
t,f 25 °C,f t,f
==
Φ is the total phase at 25 °C and frequency f, in (°);
25 °C,f
3.2
maximum variation of temperature coefficient of phase
∆η
max
maximum value η minus the minimum value η
max min
∆η = η −η
(2)
max min
max
3.3
ratio of relative temperature coefficient of phase
PT
ratio of the relative temperature coefficient of phase PT, when the relationship between phase
and temperature is sufficiently linear
ϕ −ϕ
t t
f f
1, 2,
(3)
PT =
Φ .(t − t )
25℃，f 2 1
where
ϕ
tf,
is the phase value at t and frequency f, in (°);
ϕ
t , f
is the phase value at t and frequency f, in (°);
Φ is the total phase at 25 °C and frequency f, in (°).
25 °C,f
t and t are any two temperatures within a specified temperature range in which the
1 2
relationship between phase and temperature is sufficiently linear (t > t ), in °C.
2 1
3.4
total relative variation of phase constant
total relative variation of the phase constant
ββ−
δβ = (4)
β
nom
ll−
e,2 e,1
δβ ⋅v τ −τ ⋅c⋅v (5)
( )
r,nom p,2 p,1 r,nom
l
mech
where
β
is the phase constant at temperature t in radians/m;
β
is the phase constant at temperature t > t , in radians/m;
2 1
β
nom
is the nominal phase constant in radians/m;
τ
is the phase delay at temperature t in s/m;
p,1 1
τ is the phase delay at temperature t > t , in s/m;
p,2 2 1
c is the propagation velocity in free space (3 × 10 m/s);
= =
– 8 – IEC 61196-1-111:2014  IEC 2014
l is the electrical length at temperature t in m;
e,1 1
l is the electrical length at temperature t > t in m;
e,2 2 1,
l
mech
is the mechanical length in m;
v is the nominal relative propagation velocity.
r,nom
Note 1 to entry: For unidirectional variation, t and t are the limits of a specified temperature range. In the case
1 2
τ
of changing signs of variation, t and t become the temperatures at which the extreme value of l or occur.
1 2 e p
3.5
temperature coefficient of phase constant
CT
temperature coefficient of the phase constant
δβ
–1
CT = in k (6)
t – t
2 1
where
δβ
...