IEC 61196-7:2021

IEC 61196-7 ®
Edition 2.0 2021-08
REDLINE VERSION
INTERNATIONAL
STANDARD
Coaxial communication cables –
Part 7: Sectional specification for cables for BCT cabling in accordance with
ISO/IEC 15018 ISO/IEC 11801-4 – Indoor drop cables for systems operating at
5 MHz – 3 000 6 000 MHz
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IEC 61196-7 ®
Edition 2.0 2021-08
REDLINE VERSION
INTERNATIONAL
STANDARD
Coaxial communication cables –

Part 7: Sectional specification for cables for BCT cabling in accordance with

ISO/IEC 15018 ISO/IEC 11801-4 – Indoor drop cables for systems operating at

5 MHz – 3 000 6 000 MHz
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.10 ISBN 978-2-8322-1022-2

– 2 – IEC 61196-7:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 7
4 Requirements for cable construction . 7
4.1 General . 7
4.2 Inner conductor . 7
4.3 Dielectric . 7
4.4 Outer conductor or screen . 8
4.5 Filling compounds . 8
4.6 Moisture barriers . 8
4.7 Wrapping layers . 8
4.8 Sheath . 8
4.9 Metallic protection . 8
4.10 Cable integral suspension strand (messenger wire). 8
4.11 Oversheath . 8
4.12 Fauna proofing . 8
4.13 Chemical and/or environmental proofing . 8
4.14 Cable identification . 8
4.14.1 General . 8
4.14.2 Sheath marking . 9
4.14.3 Labelling . 9
5 Tests for completed cables . 10
5.1 General .
5.1 Electrical tests . 10
5.1.1 Low-frequency and DC electrical measurements . 10
5.1.2 High-frequency electrical and transmission measurements . 10
5.2 Environmental testing of the finished cable . 12
5.3 Mechanical tests . 13
5.4 Fire performance test methods (for future study FFS). 14
Annex A (normative) Cable identification and marking . 15
A.1 Cable identification . 15
A.1.1 Type name . 15
A.1.2 Variants . 15
A.1.3 Screening classes . 15
A.2 Cable marking . 16
Annex B (informative) Cable types . 17
Bibliography . 18

Table 1 – Low-frequency and DC electrical measurements . 10
Table 2 – High-frequency electrical and transmission measurements . 10
Table 3 – Environmental tests . 12
Table 4 – Mechanical tests . 13
Table B.1 – 61196-7 cable types – Preferred nominal dimensions and ratings . 17

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
COAXIAL COMMUNICATION CABLES –

Part 7: Sectional specification for cables for BCT cabling
in accordance with ISO/IEC 15018 ISO/IEC 11801-4 –
Indoor drop cables for systems operating at 5 MHz – 3 000 6 000 MHz

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 61196-7:2011. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 61196-7:2021 RLV © IEC 2021
IEC 61196-7 has been prepared by subcommittee 46A: Coaxial cables, of IEC technical
committee 46: Cables, wires, waveguides, RF connectors, RF and microwave passive
components and accessories. It is an International Standard.
This second edition cancels and replaces the first edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) extension of frequency range up to 6 GHz,
b) revised sheath marking and labelling,
c) a table with typical cable characteristics was added as Annex B.
The text of this International Standard is based on the following documents:
FDIS Report on voting
46A/1499/FDIS 46A/1516/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/standardsdev/publications.
It is to be used in conjunction with IEC 61196-1:2005.
A list of all parts of IEC 61196 series, published under the general title Coaxial
communication cables, can be found on the IEC website.
The committee has decided that the contents of this 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,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

COAXIAL COMMUNICATION CABLES –

Part 7: Sectional specification for cables for BCT cabling
in accordance with ISO/IEC 15018 ISO/IEC 11801-4 –
Indoor drop cables for systems operating at 5 MHz – 3 000 6 000 MHz

1 Scope
This part of IEC 61196 applies to coaxial communications cables. It specifies the
requirements for cables for broadcast and communications technologies (BCT) cabling in
accordance with ISO/IEC 15018 ISO/IEC 11801-4 for use in cabled television distribution
networks operating at temperature between −40 °C and +70 °C and in the frequency range
from 5 MHz to 3 000 6 000 MHz and is to be read in conjunction with IEC 61196-1.
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 60096-0-1, Radio frequency cables – Part 0-1: Guide to the design of detail specifications
– Coaxial cables
IEC 61196-1:2005, Coaxial communication cables – Part 1: Generic specification – General,
definitions and requirements
IEC 61196-1-101, Coaxial communication cables – Part 1-101: Electrical test methods – Test
for conductor d.c. resistance of cable
IEC 61196-1-102, Coaxial communication cables – Part 1-102: Electrical test methods – Test
for insulation resistance of cable dielectric
IEC 61196-1-103, Coaxial communication cables – Part 1-103: Electrical test methods – Test
for capacitance of cable
IEC 61196-1-105, Coaxial communication cables – Part 1-105: Electrical test methods – Test
for withstand voltage of cable dielectric
IEC 61196-1-106, Coaxial communication cables – Part 1-106: Electrical test methods – Test
for withstand voltage of cable sheath
IEC 61196-1-108, Coaxial communication cables – Part 1-108: Electrical test methods – Test
for characteristic impedance, phase and group delay, electrical length and propagation
velocity
IEC 61196-1-112, Coaxial communication cables – Part 1-112: Electrical test methods – Test
for return loss (uniformity of impedance)
__________
Only valid without current load.

– 6 – IEC 61196-7:2021 RLV © IEC 2021
IEC 61196-1-113, Coaxial communication cables – Part 1-113: Electrical test methods – Test
for attenuation constant
IEC 61196-1-115, Coaxial communication cables – Part 1-115: Electrical test methods – Test
for regularity of impedance (pulse/step function return loss)
IEC 61196-1-201:2009, Coaxial communication cables – Part 1-201: Environmental test
methods – Test for cold bend performance of cable
IEC 61196-1-203, Coaxial communication cables – Part 1-203: Environmental test methods –
Test for water penetration of cable
IEC 61196-1-206, Coaxial communication cables – Part 1-206: Environmental test methods –
Climatic sequence
IEC 61196-1-212, Coaxial communication cables – Part 1-206: Environmental test methods –
UV stability
IEC 61196-1-304, Coaxial communication cables – Part 1-304: Mechanical test methods –
Impact resistance
IEC 61196-1-308, Coaxial communication cables – Part 1-308: Mechanical test methods –
Test for tensile strength and elongation for copper-clad metals
IEC 61196-1-313, Coaxial communication cables – Part 1-313: Mechanical test methods –
Adhesion of dielectric and sheath
IEC 61196-1-314:20062015, Coaxial communication cables – Part 1-314: Mechanical test
methods – Test for bending
IEC 61196-1-316, Coaxial communication cables – Part 1-316: Mechanical test methods –
Test of maximum pulling force of cable
IEC 61196-1-317, Coaxial communication cables – Part 1-317: Mechanical test methods –
Test for crush resistance of cable
IEC 61196-1-324, Coaxial communication cables – Part 1-324: Mechanical test methods –
Test for abrasion resistance of cable
IEC 62153-1-1, Metallic communication cables test methods − Part 1-1: Electrical −
Measurement of the pulse/step return loss in the frequency domain using the Inverse Discrete
Fourier Transformation (IDFT)
IEC 62153-4-3, Metallic communication cable test methods – Part 4-3: Electromagnetic
compatibility (EMC) – Surface transfer impedance – Triaxial method
IEC 62153-4-4, Metallic communication cable test methods – Part 4-4: Electromagnetic
compatibility (EMC) – Shielded screening attenuation, Test method for measuring of the
screening attenuation as up to and above 3 GHz, triaxial method
IEC 62230, Electric cables – Spark-test method
ISO/IEC 15018, Information technology – Generic cabling for homes
__________
To be published
ISO/IEC 11801-4, Information technology – Generic cabling for customer premises – Part 4:
Single-tenant homes
ISO/IEC TR 29106:2007, Information technology – Generic cabling – Introduction to the MICE
environmental classification
EN 50289-1-6, Communication cables – Specifications for test methods – Electrical test
methods – Electromagnetic performance
3 Terms and definitions
For the purposes of this document, the terms and definitions of IEC 61196-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 Requirements for cable construction
4.1 General
When designing the cable, consideration should be paid to the maximum admissible current
stated in the detail specification. The mechanical and electrical properties of the cable should
be maintained across the specified operating temperatures.
This specification covers standard applications, other cables may be designed with respect to
the MICE tables respectively to harsh environment depending upon agreement between
customer and supplier.
A list of different cable types which indicates typical cable properties for informative purposes
(for cables with copper inner conductors) is given in Annex B.
NOTE MICE tables: The so-called MICE tables describe the environmental classifications within the industrial
premises, and the parameters for each kind (level) of environment (see ISO/IEC TR 29106:2007).
4.2 Inner conductor
The conductor shall meet the requirements of IEC 61196-1:2005, Subclause 4.4.1, and shall
be solid or tube. Individual wires can be plain or metal coated. Dimensions shall be ≥ 0,6 mm
and ≤ 1,2 mm and specified in the detail specification.
Any joint made during the final cable production should not affect the mechanical or electrical
performance.
4.3 Dielectric
The dielectric shall be in accordance with IEC 61196-1:2005, Subclause 4.5.
The dielectric material(s) shall be in accordance with IEC 61196-1:2005, Subclause 4.5 and
shall consist of polyolefin materials, (e.g. polyethylene or polypropylene).
The diameter of the dielectric shall be ≥ 3,0 mm and ≤ 6,0 mm ≥ 2,7 mm and ≤ 7,3 mm and
shall be specified in the detail specification.

– 8 – IEC 61196-7:2021 RLV © IEC 2021
4.4 Outer conductor or screen
The construction and material of the outer conductor and/or screen shall meet the
requirements of IEC 61196-1:2005, Subclause 4.6.1 b), c), f) or g). Where option b) is used, a
double braid layer is required.
For braid constructions or helically wound wires, the braid angle shall be between 15° and
45°. The coverage factor shall be greater than or equal to 65 %, or, when the cable is
provided with a metal foil, greater than or equal to 25 %. These values are also valid for
cables with two bi-directional layers of helically wound wires.
The diameter over the outer conductor shall be ≥ 3,5 mm and ≤ 6,5 mm ≥ 3,2 mm and
≤ 8,0 mm and specified in the detail specification.
4.5 Filling compounds
Not applicable.
4.6 Moisture barriers
Not applicable.
4.7 Wrapping layers
Not applicable.
4.8 Sheath
The sheath shall meet the requirements of IEC 61196-1:2005, Subclause 4.7.
The diameter of the outer sheath shall be ≤ 11,0 mm and shall be specified in the detail
specification.
4.9 Metallic protection
Not applicable.
4.10 Cable integral suspension strand (messenger wire)
Not applicable.
4.11 Oversheath
Not applicable.
4.12 Fauna proofing
Not applicable.
4.13 Chemical and/or environmental proofing
Not applicable.
4.14 Cable identification
4.14.1 General
Cable identification shall be in accordance with of 6.1 of IEC 61196-1.

IEC 61196-1:2005, Subclause 6.1 applies.
4.14.2 Sheath marking
Unless otherwise specified in the detail specification, sheath marking shall be achieved as a
non-degradable print containing the minimum information:
– the number of the relevant IEC specification;
– attenuation value (in dB/100 m at 800 MHz, rounded);
– screening class;
– name of supplier.
EXAMPLE IEC 61196-1, 21, Class A < XXX >
– a number giving the nominal characteristic impedance of the cable in ohms, "75",
– a number that corresponds to the approximate dielectric outer diameter in mm; for
example, the nominal dielectric diameter 3,66 mm shall be expressed by "4",
– a letter that corresponds to the different outer conductor construction types,
– a letter that corresponds to the different inner conductor types,
– a letter that corresponds to the different outer conductor construction types,
– letters that correspond to the different outer conductor materials,
– a number that corresponds to the different screening classes,
– the number of the IEC standard (61196-7),
– the name of supplier.
– the length of cable.
EXAMPLE: 75-4T-BC-ALT/BC/ALT-A – – IEC 61196-7
More detailed information is given in Annex A.
4.14.3 Labelling
Unless otherwise specified in the detail specification, drums or coils shall be provided with a
label with a non-degradable print containing the following minimum information:
– the number of the relevant IEC specification;
– attenuation value (in dB/100 m at 800 MHz, rounded);
– screening class;
– name of supplier;
– batch part number;
– length of cable.
EXAMPLE IEC 61196-1, 21, Class A < XXX > 03/04 543 m
– a number giving the nominal characteristic impedance of the cable in ohms, "75",
– a number that corresponds to the approximate dielectric outer diameter in mm; for
example, the nominal dielectric diameter 3,66 mm shall be expressed by "4",
– a letter that corresponds to the different outer conductor construction types, see A.1.2,
– letters that correspond to the different inner conductor types, see A.1.2,
– letters that correspond to the different outer conductor construction types, see A.1.2,
– letters that correspond to the different outer conductor materials, see A.1.2,
– a designation of the different screening classes, see A.1.2,

– 10 – IEC 61196-7:2021 RLV © IEC 2021
– the name of supplier,
– the number of the IEC standard (61196-7),
– the batch part number.
More detailed information is given in Annex A.
EXAMPLE: 75-4T-BC-ALT/BC/ALT-A – – IEC 61196-7 – 03/04 543 m
5 Tests for completed cables
5.1 General
When tested in accordance with the requirements of IEC 61196-1, the requirements given
below shall apply.
5.1 Electrical tests
5.1.1 Low-frequency and DC electrical measurements
Low-frequency and DC electrical measurements are described in Table 1.
Table 1 – Low-frequency and DC electrical measurements
No. IEC test Parameter Requirements/Remarks
procedure
5.1.1.1 61196-1-101 Conductor resistance Applicable, value in accordance with the detail
specification
61196-1-101 Loop resistance ≤ 90 Ω/km
5.1.1.2 61196-1-102 Insulation resistance ≥ 10 MΩ × km
5.1.1.3 61196-1-105 Withstand voltage of 2 kV DC or 1,5 kV AC for 1 min, unless otherwise
dielectric specified in the relevant detail specification
5.1.1.4 61196-1-106 Withstand voltage of 2,5 kV AC or 3,75 kV DC, unless otherwise specified in
sheath the relevant detail specification
5.1.1.5 61196-1-103 Mutual capacitance When required, in accordance with the relevant detail
specification
5.1.1.6 62230 Spark test Test in accordance with IEC 62230, value in
accordance with the detail specification
5.1.1.7 60096-0-1 Current carrying May be specified for information purposes only in the
capacity detail specification, according to IEC 60096-0-1

5.1.2 High-frequency electrical and transmission measurements
High-frequency electrical and transmission measurements are described in Table 2.

Table 2 – High-frequency electrical and transmission measurements
No. IEC test Parameter Requirements/Remarks
procedure
5.1.2.1 61196-1-108 Characteristic 75 Ω ± 3 Ω
impedance
5.1.2.2 61196-1-108 Velocity of propagation May be specified in the detail specification as required
5.1.2.3 61196-1-112 Return loss RL = 20 dB min. from 5 MHz to 1 000 MHz
RL = 18 dB min. from 1 000 MHz to 2 000 MHz
RL = 16 dB min. from 2 000 MHz to 3 000 MHz
RL = 14 dB min. from 3 000 MHz to 6 000 MHz
5.1.2.4 61196-1-113 Attenuation constant The maximum value at any frequency shall not be
greater than calculated with the following formula:
(maximum attenuation)
(dB/100 m).
a × f +×b fc+
In case of copper clad conductor material, a term
d / f
should be added to better match the curve at
low frequencies.
α shall be corrected to a temperature of 20 °C.
The coefficients a, b, c and d (if applicable) shall be
given in the relevant detail specification.
NOTE a, b, c, d = least square fit coefficients.
f is in MHz.
5.1.2.5 61196-1-115 Regularity of Perform on both ends of tested cable
impedance
Regularity ≥ 40 dB resp ≤ 1 %
Test procedure: IEC 61196-1-115 (time domain) or
IEC 62153-1-1 (transformation from frequency domain
into time domain by IDFT).
5.1.2.6 62153-4-3 Transfer impedance Screening Class A+: ≤ 2,5 mΩ /m from 5 MHz to
30 MHz;
Screening Class A: ≤ 5 mΩ /m from 5 MHz to 30 MHz;
Test procedure according to EN 50289-1-6 IEC 62153-
4-3, triaxial method, after completion of the flexure test
according to 5.3.8 of this standard.
5.1.2.7 62153-4-4 Screening attenuation Screening Class A+:
≥ 95 dB from 30 MHz to 1 000 MHz;
≥ 85 dB from 1 000 MHz to 2 000 MHz;
≥ 75 dB from 2 000 MHz to 3 000 MHz.
≥ 65 dB from 3 000 MHz to 6 000 MHz
Screening Class A:
≥ 85 dB from 30 MHz to 1 000 MHz;
≥ 75 dB from 1 000 MHz to 2 000 MHz;
≥ 65 dB from 2 000 MHz to 3 000 MHz.
≥ 55 dB from 3 000 MHz to 6 000 MHz
Test procedure according to IEC 62153-4-4, triaxial
method, after completion of the flexure test according
to 5.3.9 of this document.
– 12 – IEC 61196-7:2021 RLV © IEC 2021
5.2 Environmental testing of the finished cable
Environmental tests of the finished cable are described in Table 3.
Table 3 – Environmental tests
No. IEC test Parameter Requirements/Remarks
procedure
5.2.1 61196-1-201 Cold bend After storage time of ≥ 24 h, samples shall be tested in
performance of the accordance with IEC 61196-1-201:2009, Clause 4,
cable method A at a temperature as stated in the relevant
a
detail specification.
Radius of test mandrel: 10 × outer diameter of the
cable under test
No. of turns: 3.
No. of cycles: 1.
No physical damages of conductors, dielectric and
sheaths.
5.2.2 61196-1-203 Water penetration test Not applicable
5.2.3 61196-1-206 Climatic sequence T = –20 °C; T = +60 °C; t = 24 h, unless otherwise
A B 1
specified in the detail specification.
No. of cycles: 3.
Influenced mechanical and electrical characteristics
shall be as specified in the relevant detail specification.
5.2.4 61196-1-304 Impact resistance May be specified in the detail specification as required.
5.2.5 60068-2-78 Damp heat, steady Not applicable
state
5.2.6 61196-1-212 UV resistance If applicable
Test procedure and values are under consideration.
a
During the bending procedure, the sample under test shall remain in the cold chamber.

5.3 Mechanical tests
Mechanical tests are described in Table 4.
Table 4 – Mechanical tests
No. IEC test Parameter Requirements/Remarks
procedure
5.3.1 61196-1-304 Impact resistance May be specified in the detail specification as required.
5.3.2 61196-1-308 Conductor elongation Applicable for copper clad steel conductors only, value
at break in accordance with the detail specification.
5.3.3 61196-1-313 Adhesion of dielectric Sample length = 25 mm
a
Pressure force F required to remove dielectric shall
a
be 0,1 MPa ≤ F ≤ 1,0 MPa, refer to footnotes b and c
a
below
5.3.4 61196-1-317 Crush resistance of the Load = 700 N, applied for 2 min after a 2 min recovery
cable time, the maximum impedance irregularity shall be
≤ 1 %, when measured in accordance with
IEC 61196‑1‑115.
No physical damage of the sheath or jacket.
5.3.5 61196-1-324 Abrasion resistance of Not applicable
the sheath
5.3.6 61196-1-324 Abrasion resistance of Procedure, diameter of the needle, force and number
the sheath markings of cycles in accordance with the relevant detail
specification.
Markings shall remain legible.
5.3.7 Simulated installation Procedure according to IEC 61196-1-314:2015,
testing of the cable, Clause 8, procedure 1, 180°, U-bend.
(bending under
Sample length: ≥ 50 m.
tension).
Length between point A and B: 5 m.
Radius of the pulleys: 8 times the outer diameter of the
cable under test.
Pulling force respectively weight: Maximum pulling
force according to the detail specification.
Number of cycles: One move forward and back.
Pulling speed: ≤ 1 m/s.
Attenuation, characteristic impedance, and return loss
shall remain within the specified limits.
5.3.8 61196-1-316 Tensile performance Not applicable

– 14 – IEC 61196-7:2021 RLV © IEC 2021
No. IEC test Parameter Requirements/Remarks
procedure
5.3.9 61196-1-314 Flexure Procedure A: IEC 61196-1-314:2015, 8.3.3, test
b
procedure 2 ,
Radius of the pulleys: 10 times the outer diameter of
the cable under test.
Pulling force respectively weight: Maximum pulling
force of the cable under test, according to the detail
specification.
Number of cycles: One move forward and back.
Pulling speed: ≤ 1 m/s.
Procedure B: IEC 61196-1-314:2015, 4.3.2
Radius of the mandrel: 10 times the outer diameter of
the cable under test.
Number of cycles: Two, whereas the sample under test
shall be turned at 180° along its longitudinal axis
during the second turn.
Pulling force respectively weight: Maximum pulling
force of the cable under test, according to the detail
specification.
Turns per helix: The length of the helix shall at least
comply with the length under test of the screening tests
according to 5.1.2.6 and 5.1.2.7.
The longitudinal attenuation, the characteristic
impedance, and the return loss shall remain within the
specified limits.
5.3.10 Flexure endurance Not applicable
a
The adhesion of the dielectric to the inner conductor, F , is given in MPa by the following equation:
a
F
where F is the force, d is the diameter of the inner conductor, l is the length of the sample.
F =
a
π ××dl
b
Contrary to IEC 61196-1-314, also the pulleys may be moved from point A to point B, while the cable with
the weight is fixed.
c
Other values may be specified if special tools for preparing connector mounting are used (see relevant detail
specification).
5.4 Fire performance test methods (for future study FFS)
Tests are performed in accordance with local and/or national regulation.
NOTE IEC TR 62222 could be used if requested by local or national regulations.

Annex A
(normative)
Cable identification and marking
A.1 Cable identification
A.1.1 Type name
Cable type shall be identified by the following:
– a number giving the nominal characteristic impedance of the cable in ohms, "75",
– a number that corresponds to the approximate dielectric outer diameter in mm; for
example, the nominal dielectric diameter 3,66 mm shall be expressed by "4",
– a letter that corresponds to the different outer conductor construction types, see A.1.2,
– letters that correspond to the different inner conductor types, see A.1.2,
– letters that correspond to the different outer conductor construction types, see A.1.2,
– letters that correspond to the different outer conductor materials, see A.1.2,
– a designation of the different screening classes, see A.1.2,
– the name of the supplier,
– the number of the IEC standard (61196-7).
A.1.2 Variants
The variant of cables should be identified by the following:
1) type name (75),
2) approximate dielectric outer diameter (4)
3) outer conductor construction distinguishing letters:
S – Standard shield outer conductor (foil/braid)
T – Tri-shield shield outer conductor (foil/braid/foil)
Q – Quad-shield shield outer conductor (foil/braid/foil/braid)
4) inner conductor material
BC – Bare copper
CCS – Copper clad steel
5) outer conductor material
a) ALT – Aluminium-polymeric laminated tape
b) AL – Aluminium alloy wire
c) TC – Tinned copper wire
e.g. ALT/TC/ALT or ALT/AL/ALT/AL
6) screening class (same class for transfer impedance and screening attenuation)
a) A+, A, B or C.
A.1.3 Screening classes
Screening classes of transfer impedance and screening attenuation shall be consistent. The
lower class determines the screening class of the overall cable: e.g. if the transfer impedance
fulfils the requirement of screening class B and the screening attenuation fulfils the
requirement of screening class A, then the overall screening class of the cable is screening
class B, not class A.
– 16 – IEC 61196-7:2021 RLV © IEC 2021
A.2 Cable marking
Cable marking consists of variants and IEC standard number, for example:

Example: 75-4T-BC-ALT/BC/ALT-A – – IEC 61196-7

Annex B
(informative)
Cable types
Table B.1 indicates typical cable properties for informative purposes (for cables with copper
inner conductors).
Alternative conductor materials, dimensions and characteristics may be defined in the detail
specification.
Table B.1 – 61196-7 cable types – Preferred nominal dimensions and ratings
a
Type  32 29 23 18 13
Characteristic
Nominal diameter [mm]
over dielectric 2,7 3,0 3,7 4,8 7,2
outer diameter 4,0 4,5 6,0 7,0 10,5

Attenuation max.
[dB/100 m]
at 200 MHz 15 14 12 9 6
at 800 MHz 32 29 23 18 13
at 2 400 MHz 52 45 44 34 24
at 6 000 MHz 99 87 71 56 41
b
Attenuation coeff.
a 1,06 0,94 0,77 0,54 0,39
b 0,002 7 0,002 2 0,002 1 0,002 0 0,001 8
c 0,0 0,50 0,40 0,40 0,30
Screening class A+/A A+/A A+/A A+/A/B/C A+/A
c
Max. DC current [A] 1,5 2,1 3,4 6,1 13,2
d
Max. voltage [V]  48 48 48 48 48

e
Fire performance class
a
Type designation of this table is given by the cable attenuation at 800 MHz (rounded to an integer);
concerning cable identification, see Annex A class, e.g. 50117-9-1 – 29 – A.
b
Attenuation vs. frequency: [dB/100 m] for copper conductors; in case of copper clad
a( f ) = a ⋅ f + b ⋅ f + c
a ⋅ f + b ⋅ f + c + d / f
conductors, a term shall be added: , d according to the relevant detail
d / f
specification. Coefficients a, b, c and d can be determined from the fitted attenuation curve, using least
squares method.
c
Calculated value for free air installation at room temperature.
d
Unless otherwise specified by the manufacturer.
e
Where applicable according to Regional Regulations, e.g. the Construction Products Regulation (CPR) for
fixed installations.
– 18 – IEC 61196-7:2021 RLV © IEC 2021
Bibliography
IEC TR 62222, Fire performance of communication cables installed in buildings
IEC 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady
state
___________
IEC 61196-7 ®
Edition 2.0 2021-08
INTERNATIONAL
STANDARD
Coaxial communication cables –
Part 7: Sectional specification for cables for BCT cabling in accordance with
ISO/IEC 11801-4 – Indoor drop cables for systems operating at
5 MHz – 6 000 MHz
– 2 – IEC 61196-7:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 7
4 Requirements for cable construction . 7
4.1 General . 7
4.2 Inner conductor . 7
4.3 Dielectric . 7
4.4 Outer conductor or screen . 7
4.5 Filling compounds . 8
4.6 Moisture barriers . 8
4.7 Wrapping layers . 8
4.8 Sheath . 8
4.9 Metallic protection . 8
4.10 Cable integral suspension strand (messenger wire). 8
4.11 Oversheath . 8
4.12 Fauna proofing . 8
4.13 Chemical and/or environmental proofing . 8
4.14 Cable identification . 8
4.14.1 General . 8
4.14.2 Sheath marking . 8
4.14.3 Labelling . 9
5 Tests for completed cables . 9
5.1 Electrical tests . 9
5.1.1 Low-frequency and DC electrical measurements . 9
5.1.2 High-frequency electrical and transmission measurements . 10
5.2 Environmental testing of the finished cable . 11
5.3 Mechanical tests . 11
5.4 Fire performance test methods (FFS). 13
Annex A (normative) Cable identification and marking . 14
A.1 Cable identification . 14
A.1.1 Type name . 14
A.1.2 Variants . 14
A.1.3 Screening classes . 14
A.2 Cable marking . 15
Annex B (informative) Cable types . 16
Bibliography . 17

Table 1 – Low-frequency and DC electrical measurements . 10
Table 2 – High-frequency electrical and transmission measurements . 10
Table 3 – Environmental tests . 11
Table 4 – Mechanical tests .
...