IEC 63137-1:2019

IEC 63137-1 ®
Edition 1.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Standard test radio-frequency connectors –
Part 1: Generic specification – General requirements and test methods

Connecteurs d’essai normalisés pour fréquences radioélectriques –
Partie 1: Spécification générique – Exigences générales et méthodes d’essai

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IEC 63137-1 ®
Edition 1.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Standard test radio-frequency connectors –

Part 1: Generic specification – General requirements and test methods

Connecteurs d’essai normalisés pour fréquences radioélectriques –

Partie 1: Spécification générique – Exigences générales et méthodes d’essai

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.120.30 ISBN 978-2-8322-7166-7

– 2 – IEC 63137-1:2019 © IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Design and construction . 8
4.1 General . 8
4.2 Materials and finishes . 8
4.3 Connector interface dimensions and gauge . 8
5 Standards ratings and characteristics . 9
6 IEC type designation . 9
7 Requirements and test methods . 9
7.1 General . 9
7.2 Visual inspection . 10
7.2.1 Requirements . 10
7.2.2 Inspection procedure . 10
7.3 Dimensions and interchangeability . 10
7.3.1 Requirements . 10
7.3.2 Inspection procedure . 10
7.4 Ellipticity . 10
7.4.1 Requirements . 10
7.4.2 Inspection procedure . 10
7.5 Characteristic impedance . 11
7.5.1 Requirements . 11
7.5.2 Inspection procedure . 11
7.6 Electrical inspections . 12
7.6.1 Return loss . 12
7.6.2 Return loss repeatability . 12
7.6.3 Insertion loss . 13
7.6.4 Insertion loss repeatability . 13
7.6.5 Phase . 14
7.6.6 Phase repeatability . 14
7.6.7 Screening effectiveness . 14
7.6.8 Contact resistance . 15
7.6.9 Contact resistance repeatability . 15
7.6.10 Insulation resistance . 16
7.6.11 Voltage proof . 16
7.7 Mechanical tests . 17
7.7.1 Insertion force (resilient contacts) . 17
7.7.2 Engagement and separation forces and torques . 17
7.7.3 Strength of coupling mechanism . 18
7.7.4 Centre contact deflection . 18
7.7.5 Centre contact captivation . 19
7.7.6 Mechanical endurance . 19
8 Quality assessment . 20
8.1 General . 20
8.2 First article inspection . 20

8.2.1 First article test samples . 20
8.2.2 Inspection procedure . 20
8.2.3 Non-compliance . 21
8.2.4 Disposition of test samples . 21
8.3 Conformance inspection. 22
8.3.1 Lot-by-lot inspection . 22
8.4 Specifications . 22
8.4.1 Specification structures . 22
8.4.2 Sectional specification (SS) . 23
8.4.3 Detail specification (DS) . 23
9 Marking . 23
9.1 Marking of component . 23
9.2 Marking and contents of package . 23
Bibliography . 24

Table 1 – First article test program . 21
Table 2 – Group A inspection . 22

– 4 – IEC 63137-1:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
STANDARD TEST RADIO-FREQUENCY CONNECTORS –

Part 1: Generic specification – General requirements and 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 international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in
addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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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.
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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
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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) 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 63137-1 has been prepared by subcommittee 46F: RF and
microwave passive components, of IEC technical committee 46: Cables, wires, waveguides, RF
connectors, RF and microwave passive components and accessories.
The text of this International Standard is based on the following documents:
FDIS Report on voting
46F/459/FDIS 46F/470/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 63137 series, published under the general title Standard test
radio-frequency connectors, 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 "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The contents of the corrigendum of January 2020 have been included in this copy.

– 6 – IEC 63137-1:2019 © IEC 2019
STANDARD TEST RADIO-FREQUENCY CONNECTORS –

Part 1: Generic specification – General requirements and test methods

1 Scope
This part of IEC 63137 defines general requirements for standard test radio frequency (RF)
connectors (grade 0), including terms and definitions, ratings and characteristics, general
requirements, test methods, quality assessment procedures, and etc.
Standard test radio frequency (RF) connectors (grade 0) are intended to measure grade 1 and
grade 2 RF connectors for electrical performances. Typically, a standard test radio frequency
(RF) connector (grade 0) is an adapter with one end (normally a precision connector interface)
which can be connected with measurement equipment and the other end (normally a standard
test connector interface) which can be connected with grade 1 or grade 2 connectors.
This specification applies to grade 0 standard test connectors (called connector, hereinafter).
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 60457-1, Rigid precision coaxial lines and their associated precision connectors – Part 1:
General requirements and measuring methods
IEC 60617, Graphical symbols for diagrams
IEC 61169-1-2 , Radio frequency connectors – Part 1-2: Electrical test methods – Insertion loss
IEC 61169-1-4:__ , Radio-frequency connectors – Part 1-4: Electrical test methods – voltage
standing wave ratio, return loss and reflection coefficient
IEC 62153-4-4 Metallic communication cable test methods – Part 4-4: Electromagnetic
compatibility (EMC) – Test method for measuring of the screening attenuation as up to and
above 3 GHz, triaxial method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
___________
Under preparation. Stage at the time of publication: IEC/FDIS 61169-1-2:2019.
Under preparation. Stage at the time of publication: IEC/CDV 61169-1-4:2019.

• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
standard test connector: Grade 0
precisely made connector of a particular type used to carry out return loss measurements on
Grade 1 and Grade 2 connectors, contributing only negligible errors to the measuring result
Note 1 to entry: The standard test connector is often part of an inner-type adaptor which allows connection with a
precision connector forming part of the measuring equipment.
3.2
precision connector
connector that has coincident mechanical and electrical reference planes, air dielectric, and
has the property of making connections with a high degree of repeatability without introducing
significant reflections, loss or leakage
Note 1 to entry: It is intended for mounting on air-lines and instruments. Precision connectors can be of the
hermaphroditic type, flange type or of the pin and socket type as stated in IEC 60457-1.
3.3
within-type adaptor
adaptor for use between two or more connectors all of the same type
3.4
inter-type adaptor
adaptor for use between two or more connectors of different types
3.5
ellipticity
ratio of the difference between the maximum inner diameter of outer conductor or the maximum
outer diameter of inner conductor and the minimum inner diameter of outer conductor or
minimum outer diameter of inner conductor, to the nominal inner diameter of outer conductor, or
outer diameter of inner conductor, expressed as a percentage
Use Formula (1):
DD–
max min
E × %100 (1)
( )
D
nom
where
E is the ellipticity of inner or outer conductor;
D is nominal inner diameter of outer conductor, or outer diameter of inner conductor, in
nom
mm;
D is the measured maximum inner diameter of outer conductor, or maximum outer
max
diameter of inner conductor, in mm;
D is the measured minimum inner diameter of outer conductor, or minimum outer
min
diameter of inner conductor, in mm.

Note 1 to entry: The measurements for D and D should be made at the same cross section.
max min
3.6
eccentricity
ratio of the axial deviation between outer diameter of an inner conductor and inner diameter of
an outer conductor to the nominal inner diameter value of the outer conductor, expressed as a
percentage
=
– 8 – IEC 63137-1:2019 © IEC 2019
Use Formula (2):
e
E ×100（）% (2)
D
where
E is inner to outer conductor eccentricity;
e is axial deviation between outer diameter of inner conductor and inner diameter of
outer conductor, in mm;
D is nominal inner diameter value of outer conductor, in mm.
3.7
repeatability without rotation
maximum measured difference in the specified parameter of a connector pair between the
extreme values of measurements of this parameter during the specified number of
connect/disconnect cycles at fixed angular orientation (i.e. without rotation)
Note 1 to entry: For example, the repeatability shall not exceed the specified values for return loss , insertion
S
loss , phase , etc.
S ∆arg S
21 11
3.8
repeatability with rotation
maximum measured difference for return loss magnitude and insertion loss magnitude with
rotation
Note 1 to entry: Determine the extreme values during rotation of connector orientation of 16 approximately 45°
increments over two complete 360° cycles.
4 Design and construction
4.1 General
The connectors shall be designed and constructed to ensure these features including adequate
accuracy, uniform impedance, long mechanical durability, and good repeatability. The relevant
specification is not intended to restrict those designs and dimensions for details of construction
which do not influence interchangeability or performance, nor are they to be used as
manufacturing drawings.
All of mechanical drawings shall be made as specified in IEC 60617. The dimensions and
tolerances shall be given in metric units. During conversion of dimensions given in inches into
millimetres, they shall, in principle, be rounded to the nearest 0,000 1 mm or 0,000 05 in.
4.2 Materials and finishes
The materials and finishes used for the connectors shall be as specified in the safety,
environmental regulations and the relevant specifications. Dissimilar metals between which an
electromotive couple may exist shall not be placed in contact with each other.
4.3 Connector interface dimensions and gauge
The interface dimensions and gauge for the connectors shall be as specified in the relevant
specifications.
=
5 Standards ratings and characteristics
The ratings and characteristics applicable to each connector type and style shall be specified in
the specification. They should normally include:
a) the return loss as a function of frequency;
b) any other rating or characteristic, as applicable.
6 IEC type designation
The purpose of the IEC type designation is to identify a particular connector within the scope of
IEC RF connector standardization. It is not intended to include information in excess of this.
In practice, it is usually necessary to identify a manufacturer's product because, although
complying with the IEC standard, there may be features not covered by the standard.
The connectors complying with the relevant specification shall be designated by the following
information:
a) the number of the specification;
b) the letters "IEC";
c) the series codes of both interface ends of the connector (series code-polarity code). For
example:
1) for inter-type adapters, “2.4-F/SMP-M” denotes that one end is 2.4 series female
connector interface, and the other end is SMP series male connector interface;
2) for within-type adapters, “2.4-F/M” denotes that one end is 2.4 series female connector
interface, and the other end is 2.4 series male connector interface;
d) additional indication method as specified in the relevant specification.
NOTE When an IEC type designation is used, either for the marking of the product or in a description of the product,
it is the responsibility of the manufacturer to ensure that the item meets the requirements of the relevant specification.
7 Requirements and test methods
7.1 General
Unless otherwise specified, the following conditions shall be applied.
Measurements for mechanical and electrical performances shall be carried out under these
ambient conditions: at 20 °C to 30 °C temperature, 20% to 80% relative humidity, and
86 kPa to 106 kPa atmospheric pressure.
The connectors shall be preconditioned under the ambient conditions, as specified above, to
reach thermal stability before measurements are made.
When a nominal value only is given for an applied stress and/or the duration of application, the
specified value shall be taken to indicate the minimum test severity to be applied.
The test shall be carried out with connectors – as received from the supplier. In no case shall the
contact parts be cleaned or otherwise prepared prior to tests, unless explicitly specified in the
specification.
Nominal coupling torque value shall be specified for screw-coupled connectors in the relevant
specification.
– 10 – IEC 63137-1:2019 © IEC 2019
7.2 Visual inspection
7.2.1 Requirements
a) Workmanship
The connectors shall be manufactured in a precise manner. Connectors and associated
fittings shall be processed in such a manner as to be uniform in quality and shall be free from
visible sharp edges, burrs and other defects that will affect life, serviceability or appearance.
b) Deterioration after electrical and mechanical tests
Unless otherwise specified, there shall be no visible deterioration likely to influence the
performance.
c) Marking
It shall be correct in accordance with 9.1, and be legible after any of the specified tests.
d) Marking on the package
It shall be in accordance with 9.2.
7.2.2 Inspection procedure
The inspection will be performed visually or under a magnification as specified in the relevant
specification.
7.3 Dimensions and interchangeability
7.3.1 Requirements
7.3.1.1 Dimensions
Interface dimensions and outline dimensions for the connectors shall be as specified in the
relevant specification.
7.3.1.2 Interchangeability
The connectors shall be connected and disconnected normally with their mating counterparts.
7.3.2 Inspection procedure
The connectors shall be inspected as follows:
a) inspection for interface dimensions shall be performed by mating the gauge specified in the
relevant specification with the connector;
b) inspection for outline dimensions shall be performed using measuring tool with adequate
accuracy;
c) inspection for interchangeability shall be performed by mating the connector with at least
three counterparts, respectively.
7.4 Ellipticity
7.4.1 Requirements
The ellipticity of inner and outer conductor of the connector shall not exceed limit value, as given
in the relevant specification.
7.4.2 Inspection procedure
The diameters of inner and outer conductors of connectors shall be measured using a measuring
tool with adequate accuracy. Then calculate the ellipticities from Formula (1).

7.5 Characteristic impedance
7.5.1 Requirements
Unless otherwise specified in the relevant specification, an error in the characteristic impedance
caused by the most adverse combination of diameter tolerances and eccentricity of the inner
and outer conductors used in constructing a standard test connector shall not more than the
value specified in the relevant specification.
7.5.2 Inspection procedure
The diameters of inner and outer conductor of the connector as well as axial deviation between
outer diameter of inner conductor and inner diameter of outer conductor shall be measured
using a measuring tool with adequate accuracy.
Then calculate the eccentricities from Formula (2).
The characteristic impedance shall be calculated from Formula (3).
60 DD138
Z= ×=ln ×log (3)
dd
ε ε
rr
where
ε is relative permittivity of the dielectric;
r
D is effective inner diameter of the outer conductor, in mm;
D is effective outer diameter of the inner conductor, in mm;
Z is characteristic impedance, in Ω.
Variation of the characteristic impedance due to diameter tolerances of the inner and outer
conductors shall be calculated from Formula (4).
60 ∆∆Dd
 
∆Z − (4)
0  
Dd
ε
 
r
where
Δd is diameter tolerances of the outer diameter of the inner conductor, in mm;
ΔD is diameter tolerances of the inner diameter of the outer conductor, in mm;
ΔZ is variation of the characteristic impedance, in Ω.
Variation of the characteristic impedance due to inner to outer conductor eccentricity shall be
calculated from Formula (5).
e
∆Z ≈−240 (5)
0 
Dd−

When the characteristic impedance is 50 Ω, Formula (5) may be simplified as the following:
=
– 12 – IEC 63137-1:2019 © IEC 2019
e
∆ZE≈−296 =−296 (6)
0 
D

where
Z is impedance, in Ω;
E is inner to outer conductor eccentricity;
e is axial deviation between outer diameter of inner conductor and inner diameter of outer
conductor, in mm.
7.6 Electrical inspections
7.6.1 Return loss
7.6.1.1 Requirements
Return loss of connectors shall be in accordance with the value specified in the relevant
specification over the whole frequency range.
7.6.1.2 Test procedure
The test shall be performed using time domain method as specified in 7.2 in IEC 61169-1-4:__ .
7.6.1.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) frequency range to be measured;
b) minimum return loss value;
c) details of the connector to be mated to the connector under test (or detail drawing);
d) necessary characteristics of the appropriate precision terminal load;
e) any deviation from the standard test method.
7.6.2 Return loss repeatability
7.6.2.1 Requirements
The maximum differences for the return loss of connectors shall not exceed the value specified
in the relevant specification over the whole frequency range.
7.6.2.2 Test procedure
a) Test without rotation:
The connector to be tested shall be connected into the test system, and tested as specified
in 7.6.1. The following details shall be applied:
1) calibration: calibrate measurement system by using an open/short/load (termination) at
the end of precision airline;
2) connect the connector to be tested and behind parts to the end of precision airline, and
the resulting return loss S is observed and stored;
3) disconnect the connector to be tested, and then connect it again. The resulting return
loss S is observed and stored again;
4) repeat step 3), and do five times;
___________
Under preparation. Stage at the time of publication: IEC/CDV 61169-1-4:2019.

5) calculate the maximum difference among six test results at any frequency point.
b) Test with rotation:
The connector to be tested shall be connected into the test system, and tested as specified
in 7.6.1. The following details shall be applied:
1) calibration: calibrate measurement system by using an open/short/load (termination) at
the end of precision airline;
2) connect the connector to be tested and behind parts to the end of precision airline, and
the resulting return loss S is observed and stored;
3) disconnect the connector to be tested and then connect it gain. Rotate it with 45°
increments. The resulting return loss S is observed and stored again;
4) repeat step 3), and do sixteen times; and obtain sixteen test results over two complete
360° cycles.
5) Calculate the maximum difference among all test results at any frequency point.
7.6.2.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) test frequency range;
b) requirements for return loss repeatability;
c) details of the connector to be mated to the connector under test (or detail drawing);
d) necessary characteristics of the appropriate precision terminal load;
e) any deviation from the standard test method.
7.6.3 Insertion loss
7.6.3.1 Requirements
Insertion loss of connectors shall not exceed the value specified in the relevant specification
over the whole frequency range.
7.6.3.2 Test procedure
The test shall be performed as specified in IEC 61169-1-2.
7.6.3.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) test frequency range;
b) limit value of insertion loss;
c) details of the connector to be mated to the connector under test (or detail drawing);
d) any deviation from the standard test method.
7.6.4 Insertion loss repeatability
7.6.4.1 Requirements
Numeric differences for the insertion loss of connectors shall not exceed the value specified in
the relevant specification over the whole frequency range.
7.6.4.2 Test procedure
a) Test without rotation
Perform measurement of insertion loss as in 7.6.3. The following details shall be applied:

– 14 – IEC 63137-1:2019 © IEC 2019
1) calibrate the system;
2) perform initial measurement of the insertion loss by connecting the connector under test
to both end faces of the reference airlines. S parameter for insertion loss is observed,
and stored;
3) the connection is broken and then reconnected. The measurement values are obtained
and stored;
4) repeat step 3), and do five times;
5) calculate the maximum numeric difference at any frequency point for six test results.
b) Test with rotation
Perform measurement of insertion loss as in 7.6.3. The following details shall be applied:
1) calibrate the system;
2) perform initial measurement of the insertion loss by connecting the connector under test
parameter for insertion loss is observed,
to both end faces of the reference airlines. S
and stored;
3) when the connection is broken and then reconnected. Rotate the connector with 45°
increments over two complete 360° cycles. The measurement values are obtained and
stored;
4) calculate the maximum numeric difference at any frequency point for test results.
7.6.4.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) test frequency range;
b) requirements for insertion loss repeatability;
c) details of the connector to be mated to the connector under test (or detail drawing);
d) any deviation from the standard test method.
7.6.5 Phase
Requirements and procedures are same as in 7.6.3, except that the test parameter is set into
phase option when setting parameters for the instrument.
7.6.6 Phase repeatability
The requirements and procedures are same as in 7.6.4, except that test parameter is set into
phase option when setting parameters on the instrument.
7.6.7 Screening effectiveness
7.6.7.1 Requirements
It shall be in accordance with the value specified in the relevant specification.
7.6.7.2 Test procedure
The measurement will be performed using triaxial method as specified in IEC 62153-4-4.
7.6.7.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) appropriate frequency range;
b) details of the connector to be mated to the connector under test (or detail drawing);
c) any deviation from the standard test method.

7.6.8 Contact resistance
7.6.8.1 Requirements
The contact resistance shall not exceed the value specified in the relevant specification.
The changes in resistance of the centre conductor and outer conductor of a mated connector
pair shall not deviate, after conditioning, by more than the appropriate maximum permitted
values specified in the relevant specification.
7.6.8.2 Test procedure
Measurements will be carried out with alternating current (AC). In case of dispute, however, the
measurement with direct current shall govern.
The contact resistance shall be calculated from the potential difference measured between the
points intended for inner conductor and outer conductor contact of mated pairs. The contact
shall be made before the current is switched on. Both end faces of the connector shall be tested
separately.
The measuring set-up shall be such as to ensure that the result is within ± 10 % of the
resistance to be measured, unless another accuracy is given in the relevant specification.
of a pair of
In general, the resistances of the centre contact and the outer contact R
o
connectors shall be measured separately. The relevant specification shall state explicitly if the
total resistance R of the two contacts in series is to be determined by a direct measurement.
tot
The relevant value of the contact resistance is the mean value calculated from five consecutive
measuring cycles. No individual value shall exceed twice the mean value.
One measuring cycle consists of:
1) making the contact (engaging the connectors);
2) connection of voltage source;
3) measurement;
4) disconnection of voltage source;
5) breaking the contact (disengaging the connectors).
7.6.8.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) the upper limit values of contact resistance of the centre contact and outer contact (the upper
limit value of total resistance shall also be given when necessary);
b) any deviation from the standard test method.
7.6.9 Contact resistance repeatability
7.6.9.1 Requirements
The changes in resistance of the centre conductor and outer conductor of a mated connector
pair shall not deviate by more than the appropriate maximum permitted values specified in the
relevant specification.
– 16 – IEC 63137-1:2019 © IEC 2019
7.6.9.2 Test procedure
Perform the initial measurement of contact resistance as in 7.6.8.2. Then the connection is
broken and reconnected, and then the measured value is compared with the initial measurement.
Repeat in such manner five times.
7.6.9.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) the allowable maximum numeric difference;
b) any deviation from the standard test method.
7.6.10 Insulation resistance
7.6.10.1 Requirements
The value of insulation resistance shall be not less than the value specified in the relevant
specification.
7.6.10.2 Test procedure
The insulation resistance shall be measured between the contacts with a DC voltage
of 500 V ± 50 V or with the rated voltage of the connector, whichever is less.
The test equipment shall have a suitable range to cover the resistance being measured.
The insulation resistance shall be measured after an electrification time of 1 min ± 5 s.
7.6.10.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) value of the test voltage if other than 500 V;
b) minimum value of insulation resistance;
c) test arrangement (mated or unmated connector);
d) any deviation from the standard test method.
7.6.11 Voltage proof
7.6.11.1 Requirements
Connectors shall withstand the voltage specified in the relevant specification, without
breakdown or flashover.
7.6.11.2 Test procedure
When applicable, the connectors shall be tested both mated and unmated.
An AC voltage at a frequency between 40 Hz and 65 Hz shall be applied for 60 s for qualification
approval and for 5 s for quality conformance inspection unless otherwise prescribed in the
relevant specification.
The relation between the rated voltage U and the test voltage E (RMS values) is given by:
E = 3 U for connectors having a rated voltage up to and including 1 kV, and
E = 1,5 U with a minimum of 3 kV, for connectors having a rated voltage exceeding 1 kV.

NOTE If the cable capacitance does not allow the AC test to be performed, a DC voltage proof is done at 1,414 times
the RMS value of the AC voltage.
7.6.11.3 Information to be given in the relevant specification
The following information shall be given in the relevant specification:
a) test voltage value;
b) maximum leakage current;
c) any deviation from the standard test method.
7.7 Mechanical tests
7.7.1 Insertion force (resilient contacts)
7.7.1.1 Requirements
The values of insertion force shall not exceed those specified in the relevant specification.
7.7.1.2 Test procedure
Resilient contacts, either female (socket) or male (pin) shall be tested in the following manner
using the specified gauges.
a) The gauge causing the maximum deformation shall be applied to the contact and
withdrawn three times. For a centre female contact, the diameter of the gauge shall be the
maximum specified diameter of the mating male contact. For the outer male contact, the
inner diameter of the gauge shall be the minimum specified diameter of the female body.
b) The gauge causing minimum deformation shall then be engaged with the contact. The
contact shall support the gauge when the gauge is hanging from
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