IEC 60966-4:2024

IEC 60966-4 ®
Edition 3.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio frequency and coaxial cable assemblies –
Part 4: Sectional specification for semi-rigid coaxial cable assemblies

Cordons coaxiaux et cordons pour fréquences radioélectriques –
Partie 4 : Spécification intermédiaire pour cordons coaxiaux semi-rigides
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IEC 60966-4 ®
Edition 3.0 2024-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Radio frequency and coaxial cable assemblies –

Part 4: Sectional specification for semi-rigid coaxial cable assemblies

Cordons coaxiaux et cordons pour fréquences radioélectriques –

Partie 4 : Spécification intermédiaire pour cordons coaxiaux semi-rigides

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.10  ISBN 978-2-8322-8408-7

– 2 – IEC 60966-4:2024 © IEC 2024
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
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 Rating and characteristics . 10
7.1 Nominal characteristic impedance . 10
7.2 Temperature range . 10
8 Requirements of finished cable assemblies . 10
8.1 General . 10
8.2 Electrical requirements . 10
8.3 Mechanical requirements . 12
8.4 Environmental requirements . 14
9 Quality management . 16
10 Test schedules . 16
10.1 Qualification test . 16
10.2 Acceptance tests . 17
10.3 Periodic tests . 18
Annex A (normative) The relative position dimensions of the interface of some typical
connectors . 20
Annex B (normative) Preferred arrangement for vibrations, shocks test . 23

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 . 21
Figure B.1 – Preferred arrangement for vibrations, shocks test . 23

Table 1 – Rated temperature of cable assemblies with semi-rigid cables with
polyethylene dielectric (IEC 61196-11) . 10
Table 2 – Rated temperature of cable assemblies with semi-rigid cables with
fluoropolymer dielectric (IEC 61196-10) . 10
Table 3 – Electrical requirements . 11
Table 4 – Mechanical requirements. 12
Table 5 – Environmental requirements . 14
Table 6 – Qualification test . 16
Table 7 – Acceptance test . 18

Table 8 – Sampling plan of group B . 18
Table 9 – Periodic test . 19
Table A.1 – The dimensions of A and B in Figure A.1 . 22

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

Part 4: Sectional specification for semi-rigid 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
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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
may be required to implement this document. However, implementers are cautioned that this may not represent
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 60966-4 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 third edition cancels and replaces the second edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) added Subclause 4.3 "The relative position dimensions of the interface";
b) added Figure 2;
c) added Clause 6 "IEC type designation";
d) modified Figure 3;
e) added Clause 7 "Rating and characteristics";
f) added "Requirements/Remarks" to all the tests in Clause 8;
g) added "Corona extinction voltage" in Table 3;
h) rewrote test schedules;
i) added Annex A and Annex B.
The text of this International Standard is based on the following documents:
Draft Report on voting
46/964/FDIS 46/994/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.
– 6 – IEC 60966-4:2024 © IEC 2024
RADIO FREQUENCY AND COAXIAL CABLE ASSEMBLIES –

Part 4: Sectional specification for semi-rigid coaxial cable assemblies

1 Scope
This part of IEC 60966 is a sectional specification that relates to semi-rigid coaxial cable
assemblies operating in the transverse electromagnetic mode (TEM). It specifies the design
and construction, IEC type designation, workmanship, marking and packaging, standard rating
and characteristics, electrical, mechanical and environmental requirements of finished semi-
rigid cable assemblies, quality assessment, delivery and storage, etc.
This part of IEC 60966 applies to semi-rigid cable assemblies composed of semi-rigid coaxial
cables and coaxial connectors. Semi-rigid cable assemblies are widely used in mobile
communication systems, microwave test equipment, radar, aerospace and other fields.
NOTE 1 For the purpose 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 60068-1:2013, Environmental testing − Part 1: General and guidance
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 61196-10, Coaxial communication cables − Part 10: Sectional specification for semi-rigid
cables with fluoropolymer dielectric
IEC 61196-11, Coaxial communication cables – Part 11: Sectional specification for semi-rigid
cables with polyethylene (PE) dielectric

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 61196-10 or IEC 61196-11 and their related detail specifications.
Where cable designs deviating from these publications are required, they shall comply with the
requirements of the relevant detail specification of the cable.
If required, the manufacturer can use additional protective tubing or cable deviating from
IEC 61196-10 or IEC 61196-11 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).
Unless specified 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 60966-4:2024 © 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: 50-5(1/4")-LSZH-H-SMA-P/SMA-P-100-A-IEC60966-4 cable assembly is composed
of 50-5(1/4")-LSZH-H semi-rigid cable, one end is SMA-P pin connector and the other end is
SMA-P pin connector, the length of the cable assembly is 100 mm, its distinguishing number is
A. This cable assembly complies with IEC 60966-4.
Example 2: 50-5(1/4")-LSZH-H-SMA-P-100-A-IEC60966-4 cable assembly is composed of
50-5(1/4")-LSZH-H semi-rigid cable, one end is SMA-P pin connector and the other end empty,
the length of the cable assembly is 100 mm, its distinguishing number is A. This cable assembly
complies with IEC 60966-4.
– 10 – IEC 60966-4:2024 © IEC 2024
7 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 the cable assemblies with different cables shall be in
accordance with Table 1 or Table 2 or as specified in detail specification.
Table 1 – Rated temperature of cable assemblies with semi-rigid cables
with polyethylene dielectric (IEC 61196-11)
Parameter PE sheath LSZH sheath
°C °C
Operational temperature range −40 to 70 −25 to 70
Storage temperature range −40 to 70 −25 to 70
Installation temperature range −30 to 60 −15 to 60

Table 2 – Rated temperature of cable assemblies with semi-rigid cables
with fluoropolymer dielectric (IEC 61196-10)
Parameter No sheath PVC sheath PVDF sheath LSZH sheath
°C °C °C °C
a
Operational temperature range −40 to 75 −40 to 125 −25 to 70
−55 to 125
b
Storage temperature range −40 to 75 −40 to 125 −25 to 70
−55 to 125
Installation temperature range −10 to 40 −30 to 60 −40 to 60 −15 to 60
a
Operational temperature range of type 50-1(0,034 ") and 50-6(0,250") is −55 °C to 105 °C.
b
Storage temperature range of type 50-1(0,034 ") and 50-6(0,250") is −55 °C to 105 °C.

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 60068-1:2013, Clause 4.
8.2 Electrical requirements
Electrical requirements are given in Table 3.

Table 3 – Electrical requirements
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
While the parameter return loss (A ) is preferred, the
r
reflection factor (r) or the VSWR (voltage standing
wave ratio) may be specified
where
= −20 log |r|
A
r 10
and
1+ r
VSWR =
1– r
The return loss shall meet the following
requirements within the operating frequency range
of the cable or in accordance with the relevant detail
Reflection properties
specification.
1 8.1
(Return loss)
For semi-rigid cables with polyethylene
≥24,5 dB (10 MHz to 2 200 MHz)
≥21,5 dB (2 200 MHz to 4 000 MHz)
≥20,0 dB (4 000 MHz to 6 000 MHz)
For semi-rigid cables with fluoropolymer dielectric
≥23,1 dB (10 MHz to 6 000 MHz)
≥20,8 dB (6 000 MHz to 12 000 MHz)
≥19,1 dB (12 000 MHz to 18 000 MHz)
≥16,5 dB (18 000 MHz to 26 500 MHz)
≥15,6 dB (26 500 MHz to 40 000 MHz)
Rise time of the TDR system in accordance with the
relevant detail specification.
2 Uniformity of impedance 8.2
The characteristic impedance variation shall not
exceed ± 5 % of the nominal value or shall be in
accordance with the relevant detail specifications.
Value in accordance with the relevant detail
3 Insertion loss 8.3
specification
When required, value in accordance with the
4 Propagation time 8.5
relevant detail specification
When required, the phase difference shall not
exceed the limits specified in the relevant detail
specification.
5 Phase difference 8.7
When more than two cable assemblies are
measured, the reference cable shall be clearly
marked.
Phase variation with When required, value in accordance with the
6 8.8
temperature relevant detail specification.
Value of transfer impedance or shield attenuation in
accordance with the detail specification.
a) transfer impedance: when test frequency is less
7 Screening effectiveness 8.9
than 30 MHz, the maximum value is 300 μΩ/m;
b) shield attenuation: better than (100 − f ) dB,
f:GHz.
Value in accordance with the relevant detail
specification.
8 Voltage proof 8.10
There shall be no breakdown, arcing or flashover
throughout.
– 12 – IEC 60966-4:2024 © IEC 2024
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
≥ 5 000 MΩ, or in accordance with the relevant
9 Insulation resistance 8.11
detail specification.
Test voltage: ≤ 36 V DC.
Inner and outer
10 8.12
Inner conductor and outer conductor shall be
conductor continuity
continuous
When required, test conditions and value in
11 Power rating 8.13
accordance with the relevant detail specification.
When required, it is applicable to 50 Ω assemblies,
the test frequencies (f1 and f2), input power, PIM in
accordance with the relevant detail specification.
Typical assemblies with following connectors, when
tested at frequency 700 MHz\ 800 MHz\ 900 MHz\
Intermodulation level
1 800 MHz\ 2 100 MHz\ 2 600 MHz, input power:
12 8.14
measurement
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 required,
and the test is carried out in air without immersion in
13 Corona extinction voltage IEC 61196-1-126
insulating oil, value shall be specified in the relevant
detail specification.
8.3 Mechanical requirements
Mechanical requirements are given in Table 4.
Table 4 – Mechanical requirements
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
Meets the requirements of IEC 60966-1:2019,
1 Visual inspection 7.2
Clause 5 and 7.2.
Value in accordance with the relevant detail
The relative position
specification.
2 dimensions of the 7.3.1
The relative position dimensions of the interface of
interface
some typical connectors are shown in Annex A.
Outline of the cable Value in accordance with the relevant detail
3 7.3.2
assembly specification.
Value of the force and duration in accordance with
the relevant detail specification.
Normally, the duration is 60 s.
Requirements after the test:
4 Tensile 9.1
a) no visual damage or loosening of the assembly;
b) the relative position dimensions of the interface
shall meet the requirement of No.2 of Table 4;
c) the return loss shall meet the requirement of
No.1 of Table 3.
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
Value of the torque in accordance with the relevant
detail specification.
The torque shall be applied at least 60 s in both
clockwise and counterclockwise directions.
Requirements after test:
5 Torque 9.5
a) no visual damage or loosening of the assembly;
b) the relative position dimensions of the interface
shall meet the requirement of No.2 of Table 4;
c) the return loss shall meet the requirement of
No.1 of Table 3.
Only applicable to semi rigid cable assembly with
corrugated copper tube outer conductor.
The value of the force F, number of flexures
(normally 15) in accordance with the relevant detail
specification.
Minimum bending inside radius.
For static bending: 5 times the maximum diameter of
cable.
For dynamic bending: 10 times the maximum
6 Flexure 9.2
diameter of cable.
Or 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 meet the requirement of No.2 of Table 4;
c) the return loss shall meet the requirement of
No.1 of Table 3.
When required, only applicable to the cable
assemblies with sheath.
Abrasion test of cable
7 9.7
The number of completed cycles for all four tests
assembly
shall be in accordance with the relevant detail
specification.
When required, the preferred arrangement for the
vibration test is described in Annex B.
a) vibration:
Swept frequency range, vibration amplitude,
duration in accordance with the relevant detail
specification.
Three perpendicular directions, one of which
shall be parallel to the common axis of the
connectors, shall be tested.
8 Vibrations, shocks Annex C
b) shock:
The shape of pulse wave，peak acceleration
and the duration of the pulse in accordance with
the relevant detail specification.
Requirements after test:
a) no visual damage or loosening of the assembly;
b) no electrical interruptions exceeding 1 μs;
c) the relative position dimensions of the interface
shall meet the requirement of No.2 of Table 4.
When required, heights and number of dropping
cycles at each height in accordance with the
relevant detail specification.
9 Impact test  9.9
Requirements after test:
no visual damage or loosening of the assembly.

– 14 – IEC 60966-4:2024 © IEC 2024
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
When required, 500 operations or in accordance
with the relevant detail specification.
Requirements after test:
10 Mechanical endurance  9.10
a) no visual damage or loosening of the assembly;
b) the return loss shall meet the requirement of
No.1 of Table 3.
8.4 Environmental requirements
Environmental requirements are given in Table 5.
Table 5 – Environmental requirements
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
The following test conditions shall be 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:
1 Climatic sequence 10.3
a) no visual damage in cable assembly;
b) insulation resistance shall meet the requirement
of No.9 of Table 3;
c) voltage proof shall meet the requirement of No.8
of Table 3;
d) insertion loss shall meet the requirement of No.3
of Table 3.
Temperature: 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.
2 Damp heat, steady state 10.4
Requirements after test:
a) no visual damage in cable assembly;
b) insulation resistance shall meet the requirement
of No.9 of Table 3;
c) voltage proof shall meet the requirement of No.8
of Table 3;
d) insertion loss shall meet the requirement of No.3
of Table 3.
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
Low and high conditioning temperature should 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 meet the requirement of No.2 of Table 4;
Rapid change of
c) voltage proof shall meet the requirement of No.8
3 10.5
temperature
of Table 3;
d) insertion loss shall meet the requirement of No.3
of Table 3;
e) return loss shall meet the requirement of No.1 of
Table 3.
f) insulation resistance shall meet the requirement
of No.9 of Table 3.
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;
b) the relative position dimensions of the interface
Resistance to solvents
4 10.6
shall meet the requirement of No.2 of Table 4;
and contaminating fluids
c) the end connectors shall insert and separate
freely in normal manner;
d) insulation resistance shall meet the requirement
of No.9 of Table 3.
e) the insertion loss shall be in accordance with
No.1 of Table 3.
When required, after the test and the recovery
period, conduct the insulation resistance
measurement 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
5 Water immersion 10.7
shall meet the requirement of No.2 of Table 4;
c) the end connectors shall insert and separate
freely in normal manner;
d) insulation resistance shall meet the requirement
of No.9 of Table 3;
e) voltage proof shall meet the requirement of No.8
of Table 3.
When required, the test conditions in accordance
with the relevant detail specification.
Requirements after test:
a) no visual damage of the assembly;
Salt mist and sulphur
b) the end connectors shall insert and separate
6 10.8
dioxide tests
freely in normal manner;
c) insulation resistance shall meet the requirement
of No.9 of Table 3;
d) insertion loss shall meet the requirement of No.3
of Table 3.
When required, the test conditions in accordance
with the relevant detail specification.
Requirements after test:
a) no visual damage of the assembly;
7 Dust tests 10.9
b) the end connectors shall insert and separate
freely in normal manner;
c) insertion loss shall meet the requirement of No.3
of Table 3.
– 16 – IEC 60966-4:2024 © IEC 2024
No. Parameter Test method Requirements/Remarks
IEC 60966-1:2019
When required, the assemblies shall not continue to
burn for more than 15 s after 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 6. All samples shall be subjected to inspection of
group 1. The samples shall then be divided equally into several groups according to Table 6
and subjected to the inspection for their particular group and in the sequence given for that
group.
Table 6 – Qualification test
Group Parameter Test method Requirement Number
of
IEC 60966- IEC 60966-4:2024
samples
1:2019
Visual inspection 7.2 No.1 of Table 4
The relative position dimensions of the
7.3.1 No.2 of Table 4
interface
Outline of the cable assembly 7.3.2 No.3 of Table 4
Reflection properties 8.1 No.1 of Table 3
Uniformity of impedance 8.2 No.2 of Table 3
All
a
Insertion loss 8.3 No.3 of Table 3
samples
b
Phase difference 8.7 No.5 of Table 3
Insulation resistance 8.11 No.9 of Table 3
Inner and outer conductor continuity 8.12 No.10 of Table 3
b
Intermodulation level measurement 8.14 No.12 of Table 3

Group Parameter Test method Requirement Number
of
IEC 60966- IEC 60966-4:2024
samples
1:2019
b
Propagation time 8.5 No.4 of Table 3
Screening effectiveness 8.9 No.7 of Table 3
Voltage proof 8.10 No.8 of Table 3
b
Power rating 8.13 No.11 of Table 3
b
Corona extinction voltage IEC 61196-1-126 No.13 of Table 3
Tensile 9.1 No.4 of Table 4
Torque 9.5 No.5 of Table 4
b
Vibrations, shocks Annex C No.8 of Table 4
2 2
b
Impact test 9.9 No.9 of Table 4
Flexure 9.2 No.6 of Table 4
b
Mechanical endurance 9.10 No.10 of Table 4
Damp heat, steady state 10.4 No.2 of Table 5
Rapid change of temperature 10.5 No.3 of Table 5
b
Water immersion 10.7 No.5 of Table 5
b
Salt mist and sulphur dioxide tests 10.8 No.6 of Table 5
b
Dust tests 10.9 No.7 of Table 5
b c
3 9.7 No.7 of Table 4 1
Abrasion test of cable assembly
b c
4 Phase variation with temperature 8.8 No.6 of Table 3 1
Climatic sequence 10.3 No.1 of Table 5
5 1
Resistance to solvents and
10.6 No.4 of Table 5
b
contaminating fluids
b
6 10.10 No.8 of Table 5 1
Flammability
a
The number of samples depends on the test groups.
b
When required.
c
When the length of the cable assembly to be tested is not long enough to do the test, a longer cable
assembly which is same as the cable assembly to be tested except its length shall be used to do the test
instead.
10.2 Acceptance tests
Unless specified in the relevant detail specifications, the acceptance tests in Table 7 shall be
performed on a production lot basis and samples shall be selected in accordance with Table 7.

– 18 – IEC 60966-4:2024 © IEC 2024
Table 7 – Acceptance test
Group Parameter Test method Requirement Sampling
plan
IEC 60966- IEC 60966-4:2024
1:2019
Visual inspection 7.2 No.1 of Table 4
The relative position dimensions of the No.2 of Table 4
7.3.1
interface
Outline of the cable assembly 7.3.2 No.3 of Table 4
Reflection properties 8.1 No.1 of Table 3
Uniformity of impedance 8.2 No.2 of Table 3
A 100 %
Insertion loss 8.3 No.3 of Table 3
a
8.7 No.5 of Table 3
Phase difference
Insulation resistance 8.11 No.9 of Table 3
Inner and outer conductor continuity 8.12 No.10 of Table 3
a
8.14 No.12 of Table 3
Intermodulation level measurement
a
8.5 No.4 of Table 3
Propagation time
a
8.8 No.6 of Table 3
Phase variation with temperature
Voltage proof 8.10 No.8 of Table 3
B Table 8
a
No.13 of Table 3
Corona extinction voltage IEC 61196-1-126
a
9.10 No.10 of Table 4
Mechanical endurance
a
When required.
Table 8 – Sampling plan of group B
Lot size Sample size
1 to 5 all
6 to 90 5
91 to 150 11
151 to 280 13
281 to 500 16
501 to 1 200 19
1 201 to 3 200 23
3 201 to 10 000 29
10 001 to 35 000 35
≥35 000 40
10.3 Periodic tests
Unless specified in the relevant detail specifications, the periodic tests in Table 9 shall be
performed not less than once every 3 years.

Table 9 – Periodic test
Group Parameter Test method Requirement Number of
samples
IEC 60966- IEC 60966-4:2024
1:2019
Screening effectiveness 8.9 No.7 of Table 3
a
Power rating 8.13 No.11 of Table 3
Tensile 9.1 No.4 of Table 4
1 Torque 9.5 No.5 of Table 4 2
Flexure 9.2 No.6 of Table 4
Damp heat, steady state 10.4 No.2 of Table 5
Rapid change of temperature 10.5 No.3 of Table 5
a
No.7 of Table 4
2 Abrasion test of cable assembly 9.7 1
a
No.8 of Table 5
3 Flammability 10.10 1
a
When required.
– 20 – IEC 60966-4:2024 © IEC 2024
Annex A
(normative)
The relative position dimensions of the interface
of some typical connectors
The relative position dimensions of the interface of some typical connectors, unless otherwise
specified in the relevant detail specification, shall be in accordance with Figure A.1 and
Table A.1.
a) The interface of N series pin connector b) The interface of N series socket connector

c) The interface of SMA series pin connector d) The interface of SMA series socket connector

e) The interface of SSMA series pin connector f) The interface of SSMA series socket connector

g) The interface of TNC series pin connector h) The interface of TNC series socket connector

i) The interface of TNCA series pin connector j) The interface of TNCA series socket connector
(air interface) (air interface)

A  dimension of the inner conductor relative to the outer conductor
B dimension of the dielectric relative to the outer conductor
Figure A.1 – The relative position dimensions of the interface
of some typical connectors
– 22 – IEC 60966-4:2024 © IEC 2024
Table A.1 – The dimensions of A and B in Figure A.1
Series Figure Reference mm
min max
N series pin connector A.1 a) A 5,33 5,84
N series socket connector A.1 b) A 3,78 4,44
A 0,00 0,25
SMA series pin connector A.1 c)
B 0,00 0,25
A 0,00 0,25
SMA series socket connector A.1 d)
B 0,00 0,25
A 0,00 0,25
SSMA series pin connector A.1 e)
B 0,00 0,25
A 0,00 0,25
SSMA series socket connector A.1 f)
B 0,00 0,25
A 5,33 5,84
TNC series pin connector A.1 g)
B 0,15 —
A 3,08 3,79
TNC series socket connector A.1 h)
B 3,03 3,73
A 5,28 —
TNCA series pin connector A.1 i)
B 5,28 —
A 3,03 3,48
TNCA series socket connector A.1 j)
B 3,03 3,48
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