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

Konfektionierte Koaxial- und Hochfrequenzkabel - Teil 2-1: Rahmenspezifikation für flexible konfektionierte Koaxialkabel

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

Sestavi radiofrekvenčnih in koaksialnih kablov - 2-1. del: Področna specifikacija za sestave zvijavih koaksialnih kablov

General Information

Status
Not Published
Public Enquiry End Date
14-Sep-2022
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
17-Jun-2022
Due Date
04-Nov-2022
Completion Date
25-Nov-2022

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SLOVENSKI STANDARD
oSIST prEN IEC 60966-2-1:2022
01-september-2022
Sestavi radiofrekvenčnih in koaksialnih kablov - 2-1. del: Področna specifikacija za
sestave zvijavih koaksialnih kablov
Radio frequency and coaxial cable assemblies - Part 2-1: Sectional specification for
flexible coaxial cable assemblies
Konfektionierte Koaxial- und Hochfrequenzkabel - Teil 2-1: Rahmenspezifikation für
flexible konfektionierte Koaxialkabel
Cordons coaxiaux et cordons pour fréquences radioélectriques – Partie 2-1:
Spécification intermédiaire pour cordons coaxiaux souples
Ta slovenski standard je istoveten z: prEN IEC 60966-2-1:2022
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
oSIST prEN IEC 60966-2-1:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60966-2-1 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-06-03 2022-08-26
SUPERSEDES DOCUMENTS:
46/866/CD, 46/874A/CC

IEC TC 46 : CABLES, WIRES, WAVEGUIDES, RF CONNECTORS, RF AND MICROWAVE PASSIVE COMPONENTS AND
ACCESSORIES
SECRETARIAT: SECRETARY:
United States of America Mr David Wilson
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 46A,TC 100
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:

EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

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

PROPOSED STABILITY DATE: 2027

NOTE FROM TC/SC OFFICERS:

Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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1 CONTENTS
2 1 Scope . 4
3 2 Normative references . 4
4 3 Definitions . 4
5 4 Design and construction . 4
6 4.1 Cable design and construction . 4
7 4.2 Connector design and construction . 5
8 4.3 The relative position dimensions of the interface . 5
9 4.4 Outline of the cable assembly . 5
10 5 Workmanship, marking and packaging . 6
11 6 IEC type designation . 7
12 7 Standard rating and characteristics . 8
13 7.1 Nominal characteristic impedance . 8
14 7.2 Temperature range . 8
15 7.3 Bending radius . 8
16 7.4 Rated operating frequency range. 9
17 7.5 Rated working voltage . 9
18 7.6 Rated power . 9
19 8 Requirements of finished cable assemblies . 9
20 8.1 General . 9
21 8.2 Electrical requirements . 9
22 8.3 Mechanical requirements . 11
23 8.4 Environmental requirements . 13
24 8.5 Content of toxic and harmful substances . 15
25 9 Quality management . 15
26 10 Test schedules . 15
27 10.1 Qualification test . 15
28 10.2 Acceptance tests . 17
29 10.3 Periodic tests . 17
30 Annex A . 19
31 Annex B . 21
32 B.1 Purpose. 21
33 B.2 Test equipment . 21
34 B.3 Test procedure . 21
35 B.4 Requirements . 22
36 B.5 Test report . 22
37 Annex C . 23
38
39 Figure 1 - Length definition of cable assemblies with two connectors . 6
40 Figure 2 - Length definition of cable assemblies with one connector . 6
41 Figure 3 – The marking example of a cable assembly . 7
42 Figure A.1 –The relative position dimensions of the interface of some typical
43 connectors . 20
44 Figure B.1 schematic diagram of shaking test . 21
45 Figure C.1 – Preferred arrangement for vibrations, shocks test . 23

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46
47 Table 1  Rated temperature of cable assemblies with flexible cables . 8
48 Table 2- Electrical requirements . 9
49 Table 3- Mechanical requirements . 11
50 Table 4- Environmental requirements . 13
51 Table 5 – Content of toxic and harmful substance . 15
52 Table 6  Qualification test . 16
53 Table 7 Acceptance test . 17
54 Table 8  Sampling plan . 17
55 Table 9  Periodic test . 18
56 Table A.1 –The dimensions of A and B in Figure A.1 . 20
57
58

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59 INTERNATIONAL ELECTROTECHNICAL COMMISSION
60 ____________
61
62 RADIO FREQUENCY AND COAXIAL CABLE ASSEMBLIES -
63 Part 2-1: Sectional specification for flexible coaxial cable assemblies
64
65 1 Scope
66 This part of IEC 60966 is a sectional specification that relates to flexible RF coaxial cable
67 assemblies operating in the transverse electromagnetic mode (TEM). It establishes uniform
68 requirements for testing the electrical, mechanical and climatic properties of flexible cable
69 assemblies composed of flexible RF coaxial cables and RF coaxial connectors.
70 This part of IEC 60966 applies to flexible cable assemblies composed of flexible RF coaxial
71 cables and coaxial connectors. Flexible RF cable assemblies are widely used in mobile
72 communication systems, microwave test equipment, radar, aerospace and other fields.
73 NOTE 1: For the purposes of this sectional specification, a cable assembly is always regarded as an integral unit.
74 All specifications apply to the finished assembly and not to individual and non-assembled parts thereof.
75 NOTE 2: This sectional specification should be supplemented with detail specifications giving additional details as
76 required by the particular application. This application will not necessarily require all tests.
77 2 Normative references
78 The following referenced documents are indispensable for the application of this document. For
79 dated references, only the edition cited applies. For undated references, the latest edition of
80 the referenced document (including any amendments) applies.
81 IEC 60966-1:2019, Radio-frequency and coaxial cable assemblies Part 1: Generic
82 specification - General requirements and test methods
83 IEC 61169 (all parts), Radio-frequency connectors
84 IEC 61196-1-126 Coaxial communication cables Part 1-126: Electrical test methods – Corona
85 extinction voltage
86 IEC 61196-9 Coaxial communication cables - Part 9: Sectional specification for RF flexible
87 cables
88 IEC 62321 Electrotechnical products-Determination of levels of six regulated substance (lead,
89 mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl
90 ethers)
91 3 Definitions
92 For the purposes of this document, the definitions given in IEC 60966-1:2019 apply.
93 4 Design and construction
94 4.1 Cable design and construction
95 Cables should conform to IEC 61196-9 and its related detail specifications. Where cable designs
96 deviating from these publications are required, they shall comply with the requirements of the
97 relevant detail specification.

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98 When required, the manufacturer may use additional protective tubing or cable deviating from
99 IEC 61196, in order to comply with the requirements of the relevant detail specification.
100 The materials used in the cable shall be given as engineering information in the relevant detail
101 specification.
102 According to local regulation, raw material of the cable as well as those of additional protection
103 shall be chosen to comply with regional or national Directives and Regulations such as RoHS
104 and REACH in Europe.
105 4.2 Connector design and construction
106 Connectors should conform to IEC 61169. Where connector designs deviating from IEC 61169
107 are required, the interface should conform to the relevant part of IEC 61169 where available and
108 shall comply with the requirements of the relevant detail specification.
109 The materials used in the connector shall be given as engineering information in the relevant
110 detail specification.
111 According to local regulation, raw material of the connector as well as those of additional
112 protection shall be chosen to comply with regional or national Directives and Regulations such as
113 RoHS and REACH in Europe.
114 4.3 The relative position dimensions of the interface
115 The relative position dimensions of the interface of end connector(s) of the cable assemblies
116 should comply with the interface of the relevant part of IEC 61169 or the relevant detail
117 specification. The relative position dimensions of the interface of end connector(s) include the
118 dimension of inner conductor relative to dielectric and inner conductor relative to out
119 conductor.
120 The relative position dimensions of the interface of some typical connectors are shown in
121 Annex A.
122 4.4 Outline of the cable assembly
123 The outline shall be in accordance with the relevant detail specification of the cable assembly.
124 The length, unless otherwise specified in the relevant detail specification, is defined as
125 between the reference planes of the connectors. In the case of right-angle connectors, the
126 length applies to the axis of the connectors (see Figure 1 and Figure2).
127 If not indicated in the relevant detail specification, the length tolerance shall be ±1 % for
128 cables equal to, or longer than, 300 mm and ±3 mm for cables shorter than 300mm.
129

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130
131 Figure 1 - Length definition of cable assemblies with two connectors
132
133 Figure 2 - Length definition of cable assemblies with one connector
134
135 5 Workmanship, marking and packaging
136 Clause 5 of IEC 60966-1:2019 and the following applies:
137 5.2  Marking
138 Cable assemblies made in accordance with this sectional specification comprise a section of
139 cable and two connectors. Occasionally the cable assembly will comprise only a cable and
140 one connector. When specified in the relevant detail specification, the assembly may
141 additionally include markers for identification of the assembly and interconnecting ends. End
142 caps and other accessories may also be specified (see figure 3).

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143
144
a
145 When specified
146 Figure 3 – The marking example of a cable assembly
147 6 IEC type designation
148 IEC type designation of cable assembly consists of the type of cable and connectors, the
149 length of the cable assembly and the IEC standard number, as shown below:
150       × - × / × - × - ×-IEC 60966-2-1
IEC standard number
151

152 Distinguishing number (when needed)
153
Length of cable assembly, in mm
154
155
Connector type at the other end

156
157 Connector type at one end
158
Cable type, Variant
159
160 For example 1: RG316-SMA-P/SMA-P-3000-A-IEC60966-2-1 cable assembly is comprised
161 with type RG316 flexible RF coaxial cable, one end is type SMA-P connector and the other
162 end is type SMA-P connector, the length of the cable assembly is 3000mm, its distinguishing
163 number is A. This cable assembly comply with IEC 60966-2-1.
164 For example 2:RG142-SMAJ-2000-B-IEC60966-2 cable assembly is comprised with type
165 RG142 flexible RF coaxial cable, one end is type SMAJ connector and the other end empty,
166 the length of the cable assembly is 2000mm, its distinguishing number is B. This cable
167 assembly comply with IEC 60966-2-1.

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168 7 Standard rating and characteristics
169 7.1 Nominal characteristic impedance
170 The nominal characteristic impedance shall be 50Ω or specified in the relevant detail
171 specification.
172 7.2 Temperature range
173 The rated temperature range of cable components made of different cables, connectors and
174 auxiliary materials shall comply with the provisions in Table 1.
175 Table 1  Rated temperature of cable assemblies with flexible cables
Materials used in cable
Storage(℃) Installation(℃) Operational(℃)
assemblies
PE -40~+70 -30~+60 -40~+70
PP -20~+85 -10~+80 -10~+80
PVC -40~+75 -30~+60 -40~+70
TPE -40~+85 -30~+80 -40~+80
Silica gel -40~+150 -20~+150 -20~+150
Rubber -40~+105 -20~+100 -20~+100
LSZH -25~+70 -15~+60 -25~+70
XLPE -55~+105 -40~+100 -40~+100
PVDF -40~+125 -40~+60 -40~+125
FEP -60~+200 -60~+200 -60~+200
PFA -60~+250 -60~+230 -60~+230
ETFE -60~+150 -60~+150 -60~+150
PTFE -60~+250 -60~+250 -60~+250
Ordinary tin solder(Sn) -60~+150 -60~+150 -60~+150
Note: unless otherwise specified in the relevant detail specification, the rated temperature of cable
assembly shall comply with the provisions of this table.
176
177 7.3 Bending radius
178 7.3.1 Static bending radius
179 The static bending radius R of the cable assembly shall not be less than 5 times the cable
180 diameter D, i.e. R≥ 5×D, or as specified in the relevant detail specification.
181 7.3.2 Dynamic bending radius
182 The dynamic bending radius R of the cable assembly shall not be less than 10 times of the
183 cable diameter D, i.e. R ≥ 10×D, or as specified in the relevant detail specification.

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184 7.4 Rated operating frequency range
185 The operating frequency range of cable assemblies shall be as specified in the relevant detail
186 specification.
187 7.5 Rated working voltage
188 The rated operating voltage range of cable assemblies shall be as specified in the relevant
189 detail specification.
190 7.6 Rated power
191 When required, the rated RF power of cable assemblies shall be in accordance with the
192 relevant detail specification.
193 8 Requirements of finished cable assemblies
194 8.1 General
195 For finished cable assemblies, the requirements given below shall apply when they are tested
196 in accordance with IEC 60966-1:2019 and the test methods specified herein.
197 When needed, cable assemblies with one connector shall be terminated with a suitable
198 connector at the cable end to do the test and cut off after the test.
199 Unless otherwise specified, all measurements shall be carried out under standard
200 atmospheric conditions for testing in accordance with clause 7 of IEC 60966-1:2019.
201 8.2 Electrical requirements
202 Electrical requirements are given in Table 2.
203 Table 2- Electrical requirements
Test method
Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
Value in accordance with the relevant detail
specification.
While the parameter return loss (Ar) is preferred,
the reflection factor (r) or the VSWR (voltage
standing wave ratio) may be specified
Reflection
8.2.1 8.1
properties where
A = −20 log |r|
r 10

and
1 + r
VSWR =
1 − r

Rise time of the TDR system according to in the
relevant detail specification.
Uniformity of
8.2.2 8.2
The characteristic impedance variation shall not
impedance
exceed ± 5% of the nominal value or in according
with the relevant detail specifications.
Value in accordance with the relevant detail
8.2.3 Insertion loss 8.3
specification.
When required, unless otherwise specified in the
Insertion loss
relevant detail specification, test conditions and
8.2.4 8.4
stability
requirements are as follows :
a) test mandrel radius: 5D,where D is the

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Test method
Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
diameter of the cable.
b) number of turns: 5
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 in accordance with the relevant
detail specification.
When required, value in accordance with the
8.2.5 Propagation time 8.5
relevant detail specification.
When required, test conditions and requirements in
accordance with the relevant detail specification.
Stability of

8.2.6 8.6
electrical 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.
When more than two cable assemblies measured,
8.2.7 Phase difference 8.7
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 Clause 8.7 of IEC 60966-1:2019 except the test
parameters are insertion loss instead of phase.
Insertion loss
8.2.8 8.7

difference
When required, insertion loss difference shall not
exceed 5% of the typical value, or in accordance
with the detail specification.
Phase variation When required, the value in accordance with in the
8.2.9 8.8
with temperature relevant detail specification.
When required, the value of transfer impedance or
Screening
8.2.10 8.9 shield attenuation in accordance with detail
effectiveness
specification.
Value in accordance with the relevant detail
specification.
8.2.11 Voltage proof 8.10
There shall be no breakdown, arcing or flashover
throughout.
Insulation ≥5000 MΩ, or in accordance with the relevant detail
8.2.12 8.11
resistance specification.
Test voltage:≤ 36 V DC.
Inner and outer
8.2.13 conductor 8.12
Inner conductor and outer conductor shall be
continuity
continuous respectively.
When required, test conditions and value in
8.2.14 Power rating 8.13
accordance with the relevant detail specification.
When required, it 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 following connectors, when
tested at frequency 700MHz\800MHz\900MHz\
8.2.15 PIM 8.14
1800MHz\2100MHz\2600MHz, input power:2×20W,
the PIM shall be:
– ≤-150dBc (with N type connectors);
– ≤-155dBc (with 4.3/10 type connectors);
– ≤-155dBc (with 7/16 type connectors).
Corona
8.2.16 IEC 61196-1-126
When required, sample preparation is not need, and
extinction voltage

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Test method
Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
the test is carried out in air without immersion in
insulating oil, value in according with the relevant
detail specification. It is recommended to use a
relatively non corona adapter to connect the cable
assembly for testing.
When required, the test shall be conducted in
Annex B of this accordance with Annex B of this specification, and
8.2.17 Shaking test
specification The rate of change shall not exceed 5%, or in
accordance with the detail specification.
204
205 8.3 Mechanical requirements
206 Mechanical requirements are given in Table 3.
207 Table 3- Mechanical requirements
Test method
Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
Meet the requirements of clause 5 and clause 7.2 of
8.3.1 Visual inspection 7.2
IEC 60966-1:2019.
Value in accordance with the relevant detail
The relative
specification.
position
8.3.2 7.3.1
dimensions of
The relative position dimensions of the interface of
the interface
some typical connectors are shown in Annex A.
Outline of the Value in accordance with the relevant detail
8.3.3 7.3.2
cable assembly specification.
The value of the force and duration in accordance
with the relevant detail specification.
Normally, the duration is 60 s.

Requirements after the test:
8.3.4 Tensile 9.1
a) no visual damage and loose of the assembly;
b) the relative position dimensions of the interface
should meet the requirement of 8.3.2;
c) the reflection properties, voltage proof,shall be
in accordance with Table 2
The value of the force F, number of
flexures(normally 500) in accordance with the
relevant detail specification.

Requirements after the test:
8.3.5 Flexure 9.2
a) no visual damage and loose of the assembly;
b) the relative position dimensions of the interface
should meet the requirement of 8.3.2;
c) the reflection properties, voltage proof,shall be
in accordance with Table 2.
When required, the movement amplitude( normally
half the length of the assembly), number of
cycles( normally 500) in accordance with the
Flexing
8.3.6 9.3
relevant detail specification.
endurance

Requirements after the test:

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Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
a) no visual damage and loose of the assembly;
b) the relative position dimensions of the interface
should meet the requirement of 8.3.2;
c) the reflection properties, voltage proof,shall be
in accordance with Table 2.
When required, the 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.

Cable assembly
Requirements after test:
8.3.7 9.4
crushing
a) no visual damage and loose of the assembly;
b) the relative position dimensions of the interface
should meet the requirement of 8.3.2;
c) the reflection properties and insertion loss shall
be in accordance with Table 2.
When required, the number of cycles (normally 20)
according to the relevant detail specification.

Requirements after test:
a) no visual damage and loose of the assembly;
8.3.8 Multiple bending 9.6
b) the relative position dimensions of the interface
should meet the requirement of 8.3.2;
c) the reflection properties shall be in accordance
with Table 2.
When required, the number of completed cycles for
Abrasion test of
8.3.9 9.7 all four tests in accordance with the relevant detail
cable assembly
specification
When required, the preferred arrangement for the
vibration test is described in Annex C.

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.
9.8
Vibrations,
8.3.10

shocks
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 and loose of the assembly;
b) no electrical interruptions exceeding 1μs when
testing;
c) the relative position dimensions of the interface
should meet the requirement of 8.3.2.
When required, heights and number of dropping
cycles at each height in accordance with the
relevant detail specification.
8.3.11 Impact test 9.9

Requirements after test:

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Test method
Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
no visual damage and loose of the assembly.
When required, 500 operations or in accordance
with the relevant detail specification.
Mechanical
8.3.12 9.10 Requirements after test:
endurance
The reflection properties shall be in accordance with
Table 2.
208
209 8.4 Environmental requirements
210
211 Environmental requirements are given in Table 4.
212 Table 4- Environmental requirements
Test method
Subclause Inspection Requirements/Remarks
IEC 60966-1:2019
When required, the 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:
8.4.1 Climatic sequence 10.3
a) no visual damage and loose of t
...

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