IEC 60966-2-1:2024

Radio frequency and coaxial cable assemblies - Part 2-1: Sectional specification for flexible coaxial cable assemblies

IEC 60966-2-1:2024 is a sectional specification that relates to flexible RF coaxial cable assemblies operating in the transverse electromagnetic mode (TEM). It establishes uniform requirements for testing the electrical, mechanical and climatic properties of flexible cable assemblies composed of flexible RF coaxial cables and RF coaxial connectors.
This part of IEC 60966 applies to flexible cable assemblies composed of flexible RF coaxial cables and coaxial connectors. Flexible RF cable assemblies are widely used in mobile communication systems, microwave test equipment, radar, aerospace and other fields.
NOTE 1 For the purposes of this sectional specification, a cable assembly is always regarded as an integral unit. All specifications apply to the finished assembly and not to individual and non-assembled parts thereof.
NOTE 2 This sectional specification can be supplemented with detail specifications giving additional details as required by the particular application. This application will not necessarily require all tests.

Cordons coaxiaux et cordons pour fréquences radioélectriques – Partie 2-1: Spécification intermédiaire pour cordons coaxiaux souples

L’IEC 60966-2-1:2024 est une spécification intermédiaire qui concerne les cordons coaxiaux RF souples qui fonctionnent en mode électromagnétique transverse (TEM). Elle établit des exigences uniformes pour contrôler les propriétés électriques, mécaniques et climatiques des cordons souples composés de câbles coaxiaux RF souples et de connecteurs coaxiaux RF.
La présente partie de l’IEC 60966 s’applique aux cordons souples composés de câbles coaxiaux RF souples et de connecteurs coaxiaux. Les cordons RF souples sont largement utilisés dans les systèmes de communication mobile, le matériel d’essai hyperfréquences, les radars, l’aérospatial et d’autres domaines.
NOTE 1 Pour les besoins de la présente spécification intermédiaire, un cordon est toujours considéré dans son intégralité. Toutes les spécifications s’appliquent au cordon fini et non à des parties individuelles et non assemblées de celui-ci.
NOTE 2 La présente spécification intermédiaire peut être complétée par des spécifications particulières donnant des détails supplémentaires comme l’exige l’application particulière. Cette application n’exigera pas obligatoirement tous les essais.

General Information

• Status: Published
• Publication Date: 18-Mar-2024
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: TC 46 - Cables, wires, waveguides, RF connectors, RF and microwave passive components and accessories
• Drafting Committee: WG 9 - TC 46/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 19-Mar-2024
• Completion Date: 05-Apr-2024

Relations

• Revises: IEC 60966-2-1:2008 - Radio frequency and coaxial cable assemblies - Part 2-1: Sectional specification for flexible coaxial cable assemblies
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60966-2-1 ®
Edition 4.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio frequency and coaxial cable assemblies –
Part 2-1: Sectional specification for flexible coaxial cable assemblies

Cordons coaxiaux et cordons pour fréquences radioélectriques –
Partie 2-1: Spécification intermédiaire pour cordons coaxiaux souples
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IEC 60966-2-1 ®
Edition 4.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio frequency and coaxial cable assemblies –

Part 2-1: Sectional specification for flexible coaxial cable assemblies

Cordons coaxiaux et cordons pour fréquences radioélectriques –

Partie 2-1: Spécification intermédiaire pour cordons coaxiaux souples

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.10  ISBN 978-2-8322-8412-4

– 2 – IEC 60966-2-1:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Design and construction . 7
4.1 Cable design and construction . 7
4.2 Connector design and construction . 7
4.3 The relative position dimensions of the interface . 7
4.4 Outline of the cable assembly . 7
5 Workmanship, marking and packaging . 8
6 IEC type designation . 9
7 Standard rating and characteristics . 10
7.1 Nominal characteristic impedance . 10
7.2 Temperature range . 10
7.3 Bending radius . 10
7.3.1 Static bending radius . 10
7.3.2 Dynamic bending radius . 10
7.4 Rated operating frequency range . 10
7.5 Rated working voltage . 10
7.6 Rated power . 11
8 Requirements of finished cable assemblies . 11
8.1 General . 11
8.2 Electrical requirements . 11
8.3 Mechanical requirements . 13
8.4 Environmental requirements . 15
9 Quality management . 17
10 Test schedules . 17
10.1 Qualification test . 17
10.2 Acceptance tests . 18
10.3 Periodic tests . 19
Annex A (normative) The relative position dimensions of the interface of some typical
connectors . 21
Annex B (normative) Shaking test method . 24
B.1 Purpose . 24
B.2 Test equipment . 24
B.3 Test procedure . 24
B.4 Requirements . 25
B.5 Test report . 25
Annex C (normative) Preferred arrangement for vibrations, shocks test . 26

Figure 1 – Length definition of cable assemblies with two connectors . 8
Figure 2 – Length definition of cable assemblies with one connector . 8
Figure 3 – The marking example of a cable assembly . 9
Figure A.1 – The relative position dimensions of the interface of some typical
connectors . 22

Figure B.1 – Schematic diagram of shaking test . 24
Figure C.1 – Preferred arrangement for vibrations, shocks test . 26

Table 1 – Rated temperature of cable assemblies with flexible cables . 10
Table 2 – Electrical requirements . 11
Table 3 – Mechanical requirements. 13
Table 4 – Environmental requirements . 15
Table 5 – Qualification test . 17
Table 6 – Acceptance test . 18
Table 7 – Sampling plan . 19
Table 8 – Periodic test . 19
Table A.1 – The dimensions of A and B in Figure A.1 . 23

– 4 – IEC 60966-2-1:2024 © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RADIO FREQUENCY AND COAXIAL CABLE ASSEMBLIES –

Part 2-1: Sectional specification for flexible coaxial cable assemblies

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
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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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 60966-2-1 has been prepared by IEC technical committee 46: Cables, wires, waveguides,
RF connectors, RF and microwave passive components and accessories. It is an International
Standard.
This fourth edition cancels and replaces the third edition published in 2008. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) added Figure 2;
b) added Clause 6 "IEC type designation";
c) modified Figure 3;
d) added Clause 7 "Rating and characteristics";

e) added "Requirements/Remarks" to all the tests in Clause 8;
f) added "Insertion loss difference", "Corona extinction voltage" and "Shaking test" in Table 2;
g) added "Impact test" in Table 3;
h) changed "Vibrations, bumps and shocks test" to "Vibrations, shocks test" in Table 3;
i) added Annex A, Annex B and Annex C.
The text of this International Standard is based on the following documents:
Draft Report on voting
46/966/FDIS 46/996/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 60966, published under the general title Radio frequency and coaxial
cable assemblies, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document 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 60966-2-1:2024 © IEC 2024
RADIO FREQUENCY AND COAXIAL CABLE ASSEMBLIES –

Part 2-1: Sectional specification for flexible coaxial cable assemblies

1 Scope
This part of IEC 60966 is a sectional specification that relates to flexible RF coaxial cable
assemblies operating in the transverse electromagnetic mode (TEM). It establishes uniform
requirements for testing the electrical, mechanical and climatic properties of flexible cable
assemblies composed of flexible RF coaxial cables and RF coaxial connectors.
This part of IEC 60966 applies to flexible cable assemblies composed of flexible RF coaxial
cables and coaxial connectors. Flexible RF cable assemblies are widely used in mobile
communication systems, microwave test equipment, radar, aerospace and other fields.
NOTE 1 For the purposes of this sectional specification, a cable assembly is always regarded as an integral unit.
All specifications apply to the finished assembly and not to individual and non-assembled parts thereof.
NOTE 2 This sectional specification can be supplemented with detail specifications giving additional details as
required by the particular application. This application will not necessarily require all tests.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60966-1:2019, Radio frequency and coaxial cable assemblies – Part 1: Generic
specification – General requirements and test methods
IEC 61169 (all parts), Radio frequency connectors
IEC 61196-1-126, Coaxial communication cables – Part 1-126: Electrical test methods – Corona
extinction voltage
IEC 61196-9, Coaxial communication cables − Part 9: Sectional specification for flexible RF
coaxial cables
3 Terms and definitions
For the purposes of this document, the definitions given in IEC 60966-1:2019 apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp

4 Design and construction
4.1 Cable design and construction
Cables should conform to IEC 61196-9 and its related detail specifications. Where cable
designs deviating from these publications are required, they shall comply with the requirements
of the relevant detail specification.
When required, the manufacturer can use additional protective tubing or cable deviating from
IEC 61196-9, in order to comply with the requirements of the relevant detail specification.
The materials used in the cable shall be given as engineering information in the relevant detail
specification.
4.2 Connector design and construction
Connectors should conform to the IEC 61169 series. Where connector designs deviating from
the IEC 61169 series are required, the interface should conform to the relevant part of
IEC 61169 where available and shall comply with the requirements of the relevant detail
specification.
The materials used in the connector shall be given as engineering information in the relevant
detail specification.
4.3 The relative position dimensions of the interface
The relative position dimensions of the interface of end connector(s) of the cable assemblies
shall comply with the interface of the relevant part of IEC 61169 or the relevant detail
specification. The relative position dimensions of the interface of end connector(s) include the
dimension of inner conductor relative to dielectric and inner conductor relative to outer
conductor.
The relative position dimensions of the interface of some typical connectors are shown in
Annex A.
4.4 Outline of the cable assembly
The outline shall be in accordance with the relevant detail specification of the cable assembly.
The length, unless otherwise specified in the relevant detail specification, is defined as between
the reference planes of the connectors. In the case of right-angle connectors, the length applies
to the axis of the connectors (see Figure 1 and Figure 2).
If not indicated in the relevant detail specification, the length tolerance shall be ±1 % for cables
equal to, or longer than, 300 mm and ±3 mm for cables shorter than 300 mm.

– 8 – IEC 60966-2-1:2024 © IEC 2024

Figure 1 – Length definition of cable assemblies with two connectors

Figure 2 – Length definition of cable assemblies with one connector
5 Workmanship, marking and packaging
IEC 60966-1:2019, Clause 5 and the following paragraph applies:
Cable assemblies made in accordance with this sectional specification comprise a section of
cable and two connectors (see Figure 1). Occasionally, the cable assembly will comprise only
a cable and one connector (see Figure 2). When specified in the relevant detail specification,
the assembly may additionally include markers for identification of the assembly and
interconnecting ends. End caps and other accessories may also be specified (see Figure 3).

a
When specified
Figure 3 – The marking example of a cable assembly
6 IEC type designation
IEC type designation of cable assembly consists of the type of cable and connectors, the length
of the cable assembly and the IEC standard number, as shown below:

Example 1: RG316-SMA-P/SMA-P-3000-A-IEC60966-2-1 cable assembly is composed of type
RG316 flexible RF coaxial cable, one end is type SMA-P connector and the other end is type
SMA-P connector, the length of the cable assembly is 3 000 mm, its distinguishing number is
A. This cable assembly complies with IEC 60966-2-1.
Example 2: RG142-SMAJ-2000-B-IEC60966-2 cable assembly is composed of type RG142
flexible RF coaxial cable, one end is type SMAJ connector and the other end empty, the length
of the cable assembly is 2 000 mm, its distinguishing number is B. This cable assembly complies
with IEC 60966-2-1.
– 10 – IEC 60966-2-1:2024 © IEC 2024
7 Standard rating and characteristics
7.1 Nominal characteristic impedance
The nominal characteristic impedance shall be 50 Ω or as specified in the relevant detail
specification.
7.2 Temperature range
The rated temperature range of cable components made of different cables, connectors and
auxiliary materials shall comply with the provisions in Table 1 or as specified in their detail
specification.
Table 1 – Rated temperature of cable assemblies with flexible cables
Materials used in cable
Storage Installation Operational
assemblies
°C °C °C
PE −40 to +70 −30 to +60 −40 to +70
PP −20 to +85 −10 to +80 −10 to +80
PVC −40 to +75 −30 to +60 −40 to +70
TPE −40 to +85 −30 to +80 −40 to +80
Silica gel −40 to +150 −20 to +150 −20 to +150
Rubber −40 to +105 −20 to +100 −20 to +100
LSZH −25 to +70 −15 to +60 −25 to +70
XLPE −55 to +105 −40 to +100 −40 to +100
PVDF −40 to +125 −40 to +60 −40 to +125
FEP −60 to +200 −60 to +200 −60 to +200
PFA −60 to +250 −60 to +230 −60 to +230
ETFE −60 to +150 −60 to +150 −60 to +150
PTFE −60 to +250 −60 to +250 −60 to +250
Ordinary tin solder (Sn) −60 to +150 −60 to +150 −60 to +150

7.3 Bending radius
7.3.1 Static bending radius
The static bending radius R of the cable assembly shall not be less than 5 times the cable
diameter D, i.e. R ≥ 5×D, or as specified in the relevant detail specification.
7.3.2 Dynamic bending radius
The dynamic bending radius R of the cable assembly shall not be less than 10 times the cable
diameter D, i.e. R ≥ 10×D, or as specified in the relevant detail specification.
7.4 Rated operating frequency range
The operating frequency range of cable assemblies shall be as specified in the relevant detail
specification.
7.5 Rated working voltage
The rated operating voltage range of cable assemblies shall be as specified in the relevant
detail specification.
7.6 Rated power
When required, the rated RF power of cable assemblies shall be in accordance with the relevant
detail specification.
8 Requirements of finished cable assemblies
8.1 General
For finished cable assemblies, the requirements given below shall apply when they are tested
in accordance with IEC 60966-1:2019 and the test methods specified herein.
When needed, cable assemblies with one connector shall be terminated with a suitable
connector at the cable end to do the test and cut off after the test.
Unless otherwise specified, all measurements shall be carried out under standard atmospheric
conditions for testing in accordance with IEC 60966-1:2019, Clause 7.
8.2 Electrical requirements
Electrical requirements are given in Table 2.
Table 2 – Electrical requirements
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
Value in accordance with the relevant detail specification.
While the parameter return loss (A ) is preferred, the reflection
r
factor (r) or the VSWR (voltage standing wave ratio) may be
specified
Reflection
where
properties
1 8.1
A = −20 log |r|
r 10
(Return loss)
and
1+ r
VSWR =
1– r
Rise time of the TDR system in accordance with the relevant
detail specification.
Uniformity of
2 8.2
The characteristic impedance variation shall not exceed ± 5 %
impedance
of the nominal value or shall be in accordance with the
relevant detail specifications.
3 Insertion loss 8.3 Value in accordance with the relevant detail specification.
When required, unless otherwise specified in the relevant
detail specification, test conditions and requirements are as
follows:
a) test mandrel radius: 5D, where D is the diameter of the
cable.
Insertion loss
4 8.4 b) number of turns: 5
stability
c) portion of the cable assembly on the mandrel is its central
portion
d) after bent, the insertion loss variation shall not exceed
± 5 % or it shall be in accordance with the relevant detail
specification.
When required, value in accordance with the relevant detail
5 Propagation time 8.5
specification.
– 12 – IEC 60966-2-1:2024 © IEC 2024
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
When required, test conditions and requirements in
accordance with the relevant detail specification.
Stability of electrical
6 8.6
length
The typical value of stability of electrical length is within
±0,5°/GHz.
When required, the phase difference shall not exceed the limits
specified in the relevant detail specification.
7 Phase difference 8.7 When more than two cable assemblies are measured, the
reference cable shall be clearly marked.
The typical value of phase difference is within ±0,6°/GHz.
When required, the test is carried out in accordance with
IEC 60966-1:2019, Clause 8 except that the test parameters
are insertion loss instead of phase.
Insertion loss
8 8.7
difference
When required, insertion loss difference shall not exceed 5 %
of the typical value, or it shall be in accordance with the detail
specification.
Phase variation with When required, value in accordance with the relevant detail
9 8.8
temperature specification.
Screening When required, value of transfer impedance or shield
10 8.9
effectiveness attenuation in accordance with detail specification.
Value in accordance with the relevant detail specification.
11 Voltage proof 8.10
There shall be no breakdown, arcing or flashover throughout.
Insulation ≥5 000 MΩ, or in accordance with the relevant detail
12 8.11
resistance specification.
Test voltage：≤ 36 V DC.
Inner and outer
13 8.12
Inner conductor and outer conductor shall be continuous
conductor continuity
respectively.
When required, test conditions and value in accordance with
14 Power rating 8.13
the relevant detail specification.
When required, if applicable to 50 Ω assemblies, the test
frequencies (f1 and f2), input power, PIM values in accordance
with the relevant detail specification.
Typical assemblies with the following connectors, when tested
at frequency 700 MHz\ 800 MHz\ 900 MHz\
15 PIM 8.14
1 800 MHz\ 2 100 MHz\ 2 600 MHz, input power:
2×20 W, the PIM shall be as follows:
– ≤−150 dBc (with N type connectors);
– ≤−155 dBc (with 4.3/10 type connectors);
– ≤−155 dBc (with 7/16 type connectors).
When required, sample preparation is not needed, and the test
is carried out in air without immersion in insulating oil, value in
Corona extinction
16 IEC 61196-1-126 accordance with the relevant detail specification. It is
voltage
recommended to use a relatively non corona adapter to
connect the cable assembly for testing.
When required, the test shall be conducted in accordance with
Annex B of this Annex B of this specification, and the rate of change shall not
17 Shaking test
specification exceed ±5 %, or it shall be in accordance with the detail
specification.
8.3 Mechanical requirements
Mechanical requirements are given in Table 3.
Table 3 – Mechanical requirements
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
Meets the requirements of IEC 60966-1:2019, Clause 5 and
1 Visual inspection 7.2
7.2.
The relative
Value in accordance with the relevant detail specification.
position
2 7.3.1
The relative position dimensions of the interface of some
dimensions of the
typical connectors are shown in Annex A of this specification.
interface
Outline of the
3 7.3.2 Value in accordance with the relevant detail specification.
cable assembly
Value of the force and duration in accordance with the
relevant detail specification.
Normally, the duration is 60 s.
Requirements after the test:
a) no visual damage or loosening of the assembly;
4 Tensile 9.1
b) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3;
c) the reflection properties shall be in accordance with No.1
of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2.
Value of the force F, number of flexures (normally 500) in
accordance with the relevant detail specification.
Requirements after the test:
a) no visual damage or loosening of the assembly;
b) the relative position dimensions of the interface shall be
5 Flexure 9.2
in accordance with No.2 of Table 3;
c) the reflection properties shall be in accordance with No.1
of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2.
When required, the movement amplitude (normally half the
length of the assembly), number of cycles (normally 500) in
accordance with the relevant detail specification.
Requirements after the test:
a) no visual damage or loosening of the assembly;
6 Flexing endurance 9.3
b) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3;
c) the reflection properties shall be in accordance with No.1
of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2.
– 14 – IEC 60966-2-1:2024 © IEC 2024
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
When required, value of the force F (normally
800 N), distance from the test region to one of the connectors
(normally 1 m maximum) in accordance with the relevant
detail specification.
Requirements after test:
a) no visual damage or loosening of the assembly;
Cable assembly b) the relative position dimensions of the interface shall be
7 9.4
crushing in accordance with No.2 of Table 3;
c) the reflection properties shall be in accordance with No.1
of Table 2;
d) the insertion loss shall be in accordance with No.3 of
Table 2;
e) the voltage proof shall be in accordance with No.11 of
Table 2.
When required, the number of cycles (normally 20) in
accordance with the relevant detail specification.
Requirements after test:
a) no visual damage or loosening of the assembly;
b) the relative position dimensions of the interface shall be
8 Multiple bending 9.6
in accordance with No.2 of Table 3;
c) the reflection properties shall be in accordance with No.1
of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2.
Abrasion test of When required, the number of completed cycles for all four
9 9.7
cable assembly tests in accordance with the relevant detail specification.
When required, the preferred arrangement for the vibration
test is described in Annex C.of this specification.
a) Vibration:
Swept frequency range, vibration amplitude, duration in
accordance with the relevant detail specification.
b) Shock:
The shape of pulse wave, peak acceleration and the
duration of the pulse in accordance with the relevant
detail specification.
10 Vibrations, shocks 9.8, Annex C
c) Three perpendicular directions, one of which shall be
parallel to the common axis of the connectors, shall be
tested.
Requirements after test:
a) no visual damage or loosening of the assembly;
b) no electrical interruptions exceeding 1 μs when testing;
c) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3.
When required, heights and number of dropping cycles at
each height in accordance with the relevant detail
specification.
11 Impact test 9.9
Requirements after test:
no visual damage or loosening of the assembly.

No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
When required, 500 operations or in accordance with the
relevant detail specification.
Requirements after test:
Mechanical
12 9.10
endurance
a) no visual damage or loosening of the assembly;
b) the reflection properties shall be in accordance with No.1
of Table 2.
8.4 Environmental requirements
Environmental requirements are given in Table 4.
Table 4 – Environmental requirements
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
When required, test conditions in accordance with the
relevant detail specification.
After the test, conduct the insulation resistance measurement
and the voltage proof test within 30 min of the end of the
recovery period.
Requirements after test:
a) no visual damage or loosening of the assembly;
1 Climatic sequence 10.3
b) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3;
c) the insulation resistance shall be in accordance with
No.12 of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2;
e) the insertion loss shall be in accordance with No.3 of
Table 2.
When required, the temperature shall be: 40 °C ± 2 °C
Humidity: (93 % ± 3 %) RH
Duration: 10 days or in accordance with the relevant detail
specification.
After the test, conduct the insulation resistance measurement
and the voltage proof test within 30 min of the end of the
recovery period.
Requirements after test:
Damp heat, steady
2 10.4
a) no visual damage or loosening of the assembly;
state
b) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3;
c) the insulation resistance shall be in accordance with
No.12 of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2;
e) the insertion loss shall be in accordance with No.3 of
Table 2.
– 16 – IEC 60966-2-1:2024 © IEC 2024
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
When required, low and high conditioning temperature shall
be in accordance with the relevant detail specification.
Requirements after test:
a) no visual damage or loosening of the assembly;
b) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3;
Rapid change of
c) the insulation resistance shall be in accordance with
3 10.5
temperature
No.12 of Table 2;
d) the voltage proof shall be in accordance with No.11 of
Table 2;
e) the reflection properties shall be in accordance with No.1
of Table 2;
f) the insertion loss shall be in accordance with No.3 of
Table 2.
When required, after the test and the recovery period,
conduct the insulation resistance measurement.
Requirements after test:
a) no visual damage or loosening of the assembly;
Resistance to b) the end connectors shall insert and separate freely in
solvents and normal manner;
4 10.6
contaminating
c) the relative position dimensions of the interface shall be
fluids
in accordance with No.2 of Table 3;
d) the insulation resistance shall be in accordance with
No.12 of Table 2;
e) the insertion loss shall be in accordance with No.3 of
Table 2.
When required, after the test and the recovery period,
conduct the insulation resistance and the voltage proof test.
Requirements after test:
a) no visual damage or loosening of the assembly;
b) the relative position dimensions of the interface shall be
in accordance with No.2 of Table 3;
5 Water immersion 10.7
c) the end connectors shall insert and separate freely in
normal manner;
d) the insulation resistance shall be in accordance with
No.12 of Table 2;
e) the voltage proof shall be in accordance with No.11 of
Table 2.
When required, test conditions in accordance with the
relevant detail specification.
Requirements after test:
a) no visual damage or loosening of the assembly;
Salt mist and
b) the end connectors shall insert and separate freely in
6 sulphur dioxide 10.8
normal manner;
tests
c) the insulation resistance shall be in accordance with
No.12 of Table 2;
d) the insertion loss shall be in accordance with No.3 of
Table 2.
No. Inspection Test method Requirements/Remarks
IEC 60966-1:2019
When required, test conditions in accordance with the
relevant detail specification.
Requirements after test:
a) no visual damage or loosening of the assembly;
7 Dust tests 10.9
b) the end connectors shall insert and separate freely in
normal manner;
c) the insertion loss shall be in accordance with No.3 of
Table 2.
When required, the assemblies shall not continue to burn for
more than 15 s after being removed from the flame.
8 Flammability 10.10
During the test, no burning material drops down from the
assemblies.
9 Quality management
The quality management shall be in accordance with IEC 60966-1:2019, Clause 6.
10 Test schedules
10.1 Qualification test
Unless specified in the relevant detail specifications, the cable assemblies shall be subjected
to the qualification tests specified in Table 5. All samples shall be subjected to inspection of
group 1. The samples shall then be divided equally into several groups according to Table 5
and be subjected to the inspection for their particular group and in the sequence given for that
group.
Table 5 – Qualification test
Group Inspection Subclause Test method Number of
IEC 60966-1:2019 samples
Visual inspection No.1 in Table 3 7.2
The relative position dimensions of the
No.2 in Table 3 7.3.1
interface
Outline of the cable assembly No.3 in Table 3 7.3.2
Reflection properties No.1 in Table 2 8.1
Uniformity of impedance No.2 in Table 2 8.2
Insertion loss No.3 in Table 2 8.3
Group 1 All samples
a
Insertion loss stability No.4 in Table 2 8.4
a
Phase difference No.7 in Table 2 8.7
a
No.8 in Table 2 8.7
Insertion loss difference
Insulation resistance No.12 in Table 2 8.11

Inner and outer conductor continuity No.13 in Table 2 8.12
a
PIM No.15 in Table 2 8.14
Voltage proof No.11 in Table 2 8.10
a
No.16 in Table 2 IEC 61196-1-126
Corona extinction voltage
a
No.14 in Table 2 8.13
Power rating
Group 2 2
a
Propagation time No.5 in Table 2 8.5
Annex B of this
a
Shaking test No.17 in Table 2
specification
– 18 – IEC 60966-2-1:2024 © IEC 2024
Tensile No.4 in Table 3 9.1
a
Stability of electrical length No.6 in Table 2 8.6
Flexure No.5 in Table 3 9.2
a
No.10 in Table 2 8.9
Screening effectiveness
a
No.10 in Table 3 9.8, Annex C
Vibrations, shocks
a
No.11 in Table 3 9.9
Impact test
a
Rapid change of temperature No.3 in Table 4 10.5
a
Dust tests No.7 in Table 4 10.9
Group 3 2
a
Damp heat, steady state No.2 in Table 4 10.4
a
No.6 in Table 4 10.8
Salt mist and sulphur dioxide tests

Resistance to solvents and
No.4 in Table 4 10.6
a
contaminating fluids
a
No.5 in Table 4 10.7
Water immersion
a
No.6 in Table 3 9.3
Flexing endurance
a b
Group 4
Multiple bending No.8 in Table 3 9.6 2

Inner and outer conductor continuity No.13 in Table 2 8.12
a b
Group 5 No.1 in Table 4 10.3
Climatic sequence 2
a
No.9 in Table 2 8.8
Phase variation with temperature
a b
Group 6 No.9 in Table 3 9.7
Abrasion test of cable assembly 2
a
Mechanical endurance No.12 in Table 3 9.10
a b
Group 7 Cab
...