IEC 60092-360:2014

IEC 60092-360 ®
Edition 1.0 2014-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –
Part 360: Insulating and sheathing materials for shipboard and offshore units,
power, control, instrumentation and telecommunication cables

Installations électriques à bord des navires –
Partie 360: Matériaux d'isolation et de gainage des câbles d'alimentation, de
commande, d'instrumentation et de télécommunication installés à bord des
navires et des unités en mer
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IEC 60092-360 ®
Edition 1.0 2014-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical installations in ships –

Part 360: Insulating and sheathing materials for shipboard and offshore units,

power, control, instrumentation and telecommunication cables

Installations électriques à bord des navires –

Partie 360: Matériaux d'isolation et de gainage des câbles d'alimentation, de

commande, d'instrumentation et de télécommunication installés à bord des

navires et des unités en mer
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 47.020.60 ISBN 978-2-8322-1528-9

– 2 – IEC 60092-360:2014 © IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Cross-linked insulating compounds . 9
4.1 General . 9
4.2 Electrical characteristics . 9
4.3 Mechanical characteristics . 10
5 Cross-linked sheathing compounds . 12
5.1 General . 12
5.2 Mechanical characteristics . 12
6 Thermoplastic sheathing compounds . 14
6.1 General . 14
6.2 Mechanical characteristics . 15
7 Additional optional properties of sheathing compounds . 16
7.1 General . 16
7.2 Test requirements . 16
Annex A (normative) Determination of hardness of HEPR insulation . 18
A.1 Test piece . 18
A.2 Test procedure . 18
A.2.1 General . 18
A.2.2 Surfaces of large radius of curvature . 18
A.2.3 Surfaces of small radius of curvature . 18
A.2.4 Conditioning and test temperature . 18
A.2.5 Number of measurements . 19
Annex B (normative) Determination of the elastic modulus of HEPR insulation . 21
B.1 Procedure . 21
B.2 Requirements . 21
Annex C (normative) Procedure for enhanced hot oil immersion test for sheaths . 22
C.1 Sampling and preparation of the test pieces . 22
C.2 Determination of the cross-sectional area of the test piece . 22
C.3 Oil to be used . 22
C.4 Procedure . 22
C.5 Expression of results . 22
C.6 Requirements . 23
Annex D (normative) Procedure for drilling fluid immersion test for sheaths . 24
D.1 Drilling fluid resistance test . 24
D.2 Drilling fluid to be used . 24
D.3 Procedure . 24
D.4 Expression of results . 24
D.5 Requirements . 25

Figure A.1 – Testing surfaces of large radius of curvature . 19
Figure A.2 – Testing surfaces of small radius of curvature . 20

Table 1 – Categories and types of materials . 6
Table 2 – Types of cross-linked insulating compounds . 9
Table 3 – Electrical requirements of insulation compounds . 9
Table 4 – Test requirements for cross-linked elastomeric insulating compounds . 10
Table 5 – Types of cross-linked sheathing compound . 12
Table 6 – Test requirements for cross-linked sheathing compounds . 13
Table 7 – Types of thermoplastic sheathing compound . 15
Table 8 – Test requirements for thermoplastic sheathing compounds . 15
Table 9 – Test requirements for sheathing compounds with enhanced oil resistance
properties . 17
Table 10 – Test requirements for sheathing compounds with drilling fluid resistance
properties . 17

– 4 – IEC 60092-360:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 360: Insulating and sheathing materials for shipboard and offshore
units, power, control, instrumentation and telecommunication cables

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, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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with the International Organization for 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
interested IEC National Committees.
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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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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) 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 60092-360 has been prepared by Subcommittee 18A: Electric
cables for ships and mobile and fixed offshore units, of IEC Technical Committee 18:
Electrical installations of ships and of mobile and fixed offshore units.
This first edition cancels and replaces IEC 60092-351 Ed. 3 published in 2004 and
IEC 60092-359 Ed. 1 published in 1987, Amendment 1:1994 and Amendment 2:1992. This
edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
editions:
a) rationalization of the number of insulating and sheathing materials. In particular polyvinyl
chloride based insulation (PVC) and sheath (ST 1) have been removed. PVC sheath ST 2
is permitted even though it releases harmful fumes under fire conditions. SE and SH also
release harmful fumes under fire conditions;

b) updated temperature limit for thermoplastic sheath in line with the operating temperature
on the conductor;
c) new optional categories of sheathing materials with enhanced oil resistance, and
resistance to drilling fluids;
d) removal of the air bomb test for EPR and HEPR insulating types;
e) there has been some redistribution of test methods between IEC 60092-350 and this new
standard to remove all tests carried out on complete cables.
The text of this standard is based on the following documents:
FDIS Report on voting
18A/360/FDIS 18A/361/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60092 series, published under the general title Electrical
installations in ships, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 60092-360:2014 © IEC 2014
ELECTRICAL INSTALLATIONS IN SHIPS –

Part 360: Insulating and sheathing materials for shipboard and offshore
units, power, control, instrumentation and telecommunication cables

1 Scope
This part of IEC 60092 specifies the requirements for electrical, mechanical and particular
characteristics of insulating and sheathing materials intended for use in shipboard and fixed
and mobile offshore unit power, control, instrumentation and telecommunication cables.
The different insulating and sheathing materials have been divided into three categories as
listed in the following Table 1.
Table 1 – Categories and types of materials
Title Compounds included
Cross-linked insulating compounds EPR; HEPR; XLPE; S 95; HF 90
Cross-linked sheathing compounds SE; SH; SHF 2
Thermoplastic sheathing compounds SHF 1; ST 2

2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60092-350:— , Electrical installations in ships – Part 350: General construction and test
methods of power, control and instrumentation cables for shipboard and offshore applications
IEC 60754-1, Test on gases evolved during combustion of materials from cables - Part 1:
Determination of the halogen acid gas content
IEC 60754-2, Test on gases evolved during combustion of materials from cables – Part 2:
Determination of acidity (by pH measurement) and conductivity
IEC 60684-2:2011, Flexible insulating sleeving – Part 2: Methods of test
IEC 60811-201, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 201: General tests – Measurement of insulation thickness
IEC 60811-202:2012, Electric and optical fibre cables – Test methods for non-metallic
materials – Part 202: General tests – Measurement of thickness of non-metallic sheath
IEC 60811-401, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 401: Miscellaneous tests – Thermal ageing methods – Ageing in an air oven
___________
To be published.
IEC 60811-403, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 403: Miscellaneous tests – Ozone resistance test on cross-linked compounds
IEC 60811-404, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 404: Miscellaneous tests – Mineral oil immersion tests for sheaths
IEC 60811-409, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 409: Miscellaneous tests – Loss of mass test for thermoplastic insulations and sheaths
IEC 60811-501, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 501: Mechanical tests – Tests for determining the mechanical properties of insulating and
sheathing compounds
IEC 60811-505, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 505: Mechanical tests – Elongation at low temperature for insulations and sheaths
IEC 60811-507, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 507: Mechanical tests – Hot set test for cross-linked materials
IEC 60811-508, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 508: Mechanical tests – Pressure test at high temperature for insulation and sheaths
IEC 60811-509, Electric and optical fibre cables – Test methods for non-metallic materials –
Part 509: Mechanical tests – Test for resistance of insulations and sheaths to cracking (heat
shock test)
ISO 1817, Rubber vulcanised – Determination of the effect of liquids
ISO 48:2007, Rubber, vulcanised or thermoplastic – Determination of hardness (hardness
between 10 IRHD and 100 IRHD)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
variation
difference between the median value after ageing and the median value without ageing
Note 1 to entry: Variation is expressed as a percentage between the median value before and after ageing.
3.2
median value
when several test results have been obtained and ordered in an increasing or decreasing
succession, the median is the middle value if the number of available values is odd and is the
mean of the two middle values if the number is even
3.3
types of insulating compounds
3.3.1
EPR
ethylene-propylene rubber
cross-linked compound in which the elastomer is an ethylene-propylene, EPDM or an
equivalent synthetic elastomer providing a compound compliant with type EPR
Note 1 to entry: This note applies to the French language only.

– 8 – IEC 60092-360:2014 © IEC 2014
3.3.2
HEPR
hard ethylene-propylene rubber
cross-linked high modulus or hard grade compound in which the elastomer is an ethylene-
propylene, EPDM or an equivalent synthetic elastomer providing a compound compliant with
type HEPR
Note 1 to entry: This note applies to the French language only.
3.3.3
XLPE
cross-linked polyethylene
cross-linked compound in which the polymer is a low density polyethylene or equivalent
synthetic polymer providing a compound compliant with type XLPE
Note 1 to entry: This note applies to the French language only.
3.3.4
HF 90
cross-linked polyolefin halogen-free
cross-linked compound in which the polymer is a polyolefin or equivalent synthetic polymer
not containing halogens providing a compound which is compliant with type HF 90
3.3.5
S 95
cross-linked silicone rubber
compound based on a polysiloxane elastomer which, when cross-linked, is compliant with
type S95.
3.4
types of sheathing compounds
3.4.1
SE
polychloroprene rubber
cross-linked compound in which the elastomer is a polychloroprene (PCP) or equivalent
synthetic elastomer providing a compound which is compliant with type SE
3.4.2
SH
chlorosulphonated polyethylene rubber
chlorinated polyethylene rubber
cross-linked compound in which the characteristic constituent is a synthetic chlorinated
rubber, e.g., chlorosulphonated polyethylene (CSP) or chlorinated polyethylene (CPE), which
is compliant with type SH
Note 1 to entry: This note applies to the French language only.
3.4.3
SHF 2
halogen-free rubber
cross-linked compound in which the polymer is a polyolefin or equivalent synthetic polymer,
not containing halogens, providing a compound which is compliant with type SHF 2
3.4.4
SHF 1
halogen-free thermoplastic
thermoplastic compound in which the polymer is a polyolefin or equivalent synthetic polymer
not containing halogens providing a compound which is compliant with type SHF 1

3.4.5
ST 2
polyvinyl chloride thermoplastic
thermoplastic compound based on plasticised polyvinyl chloride which is compliant with type
ST 2
3.5
halogen-free
compound that complies with the assessment of halogen requirements in Tables 4, 6 or 8
4 Cross-linked insulating compounds
4.1 General
The types of cross-linked insulating compound covered by this standard are listed in Table 2
together with their abbreviated designations and maximum rated conductor temperatures
during normal operation and short-circuit.
Table 2 – Types of cross-linked insulating compounds
Abbreviated Maximum rated conductor temperature Type of insulating material
designation °C
Normal operation Short-circuit
EPR 90 250 Ethylene propylene rubber
HEPR 90 250 Hard grade ethylene propylene rubber
XLPE 90 250 Cross-linked polyethylene
HF90 90 250 Cross-linked polyolefin halogen-free
a b
S95 95 350 Cross-linked silicone rubber

a
The normal maximum rated conductor temperature for silicone is 180°C but it is limited in view of the type of
sheathing material used.
b
This temperature is applicable only to power cables and is not appropriate for tinned conductors.

4.2 Electrical characteristics
The test requirements for electrical characteristics of insulating compounds are listed in the
following Table 3.
Table 3 – Electrical requirements of insulation compounds
Designation of the EPR HEPR XLPE HF90 S 95
insulating compound
Insulation resistance constant Ki
(MΩ.km) (see 7.2 of
IEC 60092-350:—)
– at 20 °C, minimum, 3 670 3 670 3 670 550 1 850
– at maximum operating temperature,
3,67 3,67 3,67 0,55 1,85
minimum.
Volume resistivity ρ(Ω.cm)
(see 7.2 of IEC 60092-350:—)
15 15 15 14 13
– at 20 °C, minimum, 1,0 × 10 1,0 × 10 1,0 × 10 1,5 × 10 5,0 × 10
– at maximum operating temperature,
12 12 12 11 10
1,0 × 10 1,0 × 10 1,0 × 10 1,5 × 10 5,0 × 10
minimum.
– 10 – IEC 60092-360:2014 © IEC 2014
Designation of the EPR HEPR XLPE HF90 S 95
insulating compound
Increase in a.c. capacity after
immersion in water at 50 °C,
(see 7.3 of IEC 60092-350:—)
st
– between the end of the 1 and the
th 15 15 – 15 15
end of the 14 day, maximum (%),
th
– between the end of the 7 and the
5 5 – 5 5
th
end of the 14 day, maximum (%).

4.3 Mechanical characteristics
The test requirements for mechanical characteristics of cross-linked insulating compounds are
listed in the following Table 4.
Table 4 – Test requirements for cross-linked elastomeric insulating compounds
Test method Type of insulating compound
described in
Test description Unit
Std Clause EPR HEPR XLPE HF90 S 95
Mechanical IEC 60811-501
properties in the
state as delivered
Values to be
obtained for the:
– tensile strength, N/mm  4,2 8,5 12,5 9,0 7,0
min
– elongation at %  200 200 200 120 150
break, min
Mechanical IEC 60811-401
properties after
ageing in air oven
without conductor
Ageing conditions:
– temperature / °C
135±3 135±3 135±3 135±3 200±3
tolerance
– duration of h  168 168 168 168 240
treatment
Value to be obtained
for the tensile
strength
– minimum value N/mm  - - - - 5,5
– variation max %  -
±30 ±30 ±25 ±30
Value to be obtained
for the elongation at
break
– minimum value %  - - - 100 120
– variation max %  -
±30 ±30 ±25 ±30
Mechanical IEC 60811-401
properties after
ageing in air oven
with copper
conductor
Ageing conditions:
– temperature / °C
135±3 150±3
tolerance
– duration of h  168 168
treatment
Test method Type of insulating compound
described in
Test description Unit
Std Clause EPR HEPR XLPE HF90 S 95
Value to be obtained
for the tensile
strength
– variation max %  ±30 ±30 - -
Value to be obtained
for the elongation at
break
– variation max %  ±30 ±30 – –
Hot set test IEC 60811-507
Treatment
conditions:
– temperature/ °C
250±3 250±3 200±3 200±3 250±3
tolerance
– time under load min  15 15 15 15 15
min
– mechanical stress N/cm  20 20 20 20 20
Test requirements:
– elongation max %  175 175 175 175 175
under load
– elongation max %  15 15 15 15 25
after unloading
Determination of IEC 60092-360 Annex 80
hardness IRHD A
minimum
Determination of IEC 60092-360 Annex
elastic modulus B
Modulus at 150 % N/mm  4,5
elongation
(minimum)
Ozone resistance IEC 60811-403
test (method A or B)
– – – –
Test conditions of  –
method A
°C
– temperature 25±2 25±2 25±2
– –
– duration h  30 30 30
– –
– ozone ppm  250-300 250-300 250-300
– –
concentration
–
Result to be  No No – No
obtained cracks cracks cracks
Test conditions of   – –
method B
– temperature °C  – –
40±2 40±2 40±2
– duration h  72 72 – 72 –
– ozone %  – –
(200±50) (200±50) (200±50)
-6 -6 -6
concentration, (by
x10  x10  x10
volume)
– relative humidity %  – –
55±10 55±10 55±10
– minimum air speed mm/s  500 500 – 500 –
at the level of the
test piece
Result to be  No No No
obtained cracks cracks cracks
– 12 – IEC 60092-360:2014 © IEC 2014
Test method Type of insulating compound
described in
Test description Unit
Std Clause EPR HEPR XLPE HF90 S 95
Assessment of
a
halogens
pH  IEC 60754-2
≥4,3 ≥4,3 ≥4,3 ≥4,3 ≥4,3
-1
Conductivity µS.mm  ≤10 ≤10 ≤10 ≤10 ≤10
Amount of halogen
acid gas:
– HCl and HBr (max) % IEC 60754-1 0,5 0,5 0,5 0,5 0,5
% IEC 60684- 45 0,1 0,1 0,1 0,1 0,1
– HF (max)
2:2011
a
Test required when materials are used in halogen-free cables or identified as a halogen-free compound.

5 Cross-linked sheathing compounds
5.1 General
The types of cross-linked sheathing compound covered by this standard are listed in Table 5
together with their abbreviated designations.
Table 5 – Types of cross-linked sheathing compound
Abbreviated designation Type of material and general application
SE Polychloroprene rubber
SH Chlorosulphonated polyethylene or chlorinated polyethylene rubber
SHF 2 Halogen-free rubber
SE and SH materials are suitable for use over the types of insulation given in Table 2 of this specification with
the exception of XLPE. Types SE and SH may release harmful fumes under fire conditions.

5.2 Mechanical characteristics
The test requirements for mechanical characteristics of cross-linked sheathing compounds
are given in Table 6. Additional requirements for enhanced types are given in Clause 7. In
order to claim enhanced performance, compounds shall comply with the relevant table or
tables of Clause 7 in addition to the basic requirements in Table 6.

Table 6 – Test requirements for cross-linked sheathing compounds
Type of cross-linked sheathing
Test method described in
compound
Test description Unit
Std Clause SH SE SHF 2
Mechanical properties in IEC 60811-501
the state as delivered
Values to be obtained for:
– tensile strength, min N/mm  10 10 9
– elongation at break, min %  250 300 120
Mechanical properties after IEC 60811-401
ageing in air oven
Ageing conditions:
– temperature/tolerance °C  100±2 100±2 120±3
– duration of treatment h  168 168 168
Tensile strength
– variation max %
±30 ±30 ±30
Elongation at break
– value min %  250 –
– variation max %
±30 ±40 ±30
Mechanical properties after IEC 60811-404
immersion in mineral oil
IRM 902
Ageing conditions:
– temperature of oil °C  100±2 100±2 100±2
– duration of treatment h  24 24 24
Values to be obtained for:
– tensile strength, %
±40 ±40 ±40
variation max
– elongation at break,  ±40 ±40 ±40
variation max
Hot set test IEC 60811-507
Treatment conditions:    –
– temperature/tolerance °C  200±3 200±3 200±3
– time under load min min  15 15 15
– mechanical stress N/cm  20 20 20
Test requirements:
– elongation max under  175 175 175
load
– elongation max after  15 15 15
unloading
– 14 – IEC 60092-360:2014 © IEC 2014
Type of cross-linked sheathing
Test method described in
compound
Test description Unit
Std Clause SH SE SHF 2
Ozone resistance test IEC 60811-403
(method A or B)
Test conditions of
method A
– temperature °C
25±2 25±2 25±2
– duration h  24 24 24
– ozone concentration %
(275±25) (275±25) (275±25)
-4 -4 -4
(by volume)  x 10  x 10  x 10
Result to be obtained  No cracks No cracks No cracks
Test conditions of
method B
– temperature °C
40±2 40±2 40±2
– duration h  72 72 72
– ozone concentration, %  (200±50) (200±50) (200±50)
-6 -6 -6
(by volume)
x10  x10  x10
– relative humidity %
55±10 55±10 55±10
– minimum air speed at mm/s  500 500 500
the level of the test
piece
Result to be obtained  No cracks No cracks No cracks
Behaviour at low
temperature
Elongation test (for cables IEC 60811-505
not subject to bending test)
Test conditions:
– temperature: °C  -15±2 -15±2 -15±2
– duration h  16 16 16
Result to be obtained:
– elongation at break, min %  30 30 30
a
Assessment of halogens
pH - IEC 60754-2  ≥4,3
-1
Conductivity µS.mm IEC 60754-2  ≤10
Amount of halogen acid
gas:
– HCl and HBr (maximum) % IEC 60754-1  0,5
– HF (maximum) % IEC 60684- 45  0,1
2:2011
a
Test required when materials used in halogen free cables or identified as halogen free compounds.

6 Thermoplastic sheathing compounds
6.1 General
The types of thermoplastic sheathing compounds covered by this standard are listed in
Table 7 together with their abbreviated designations.

Table 7 – Types of thermoplastic sheathing compound
Abbreviated Type of thermoplastic sheathing material
designation
ST 2 Polyvinyl chloride thermoplastic, is permitted even though it releases harmful fumes
under fire conditions
SHF 1 Halogen-free thermoplastic for use over all types of insulation in Table 2

6.2 Mechanical characteristics
The test requirements for mechanical characteristics of thermoplastic sheathing compounds
are listed in Table 8.
Table 8 – Test requirements for thermoplastic sheathing compounds
Test method described in Type of sheathing compound
Test description Unit
Std Clause ST 2 SHF 1
Mechanical properties in
IEC 60811-501
the state as delivered
Values to be obtained for:
– tensile strength, min N/mm  12,5 9,0
– elongation at break, min %  150 120
Mechanical properties after
ageing in air oven without IEC 60811-401
conductor
Ageing conditions:
– temperature °C  100±2 100±2
– duration of treatment h  168 168
Value to be obtained for
the tensile strength
– minimum value N/mm  12.5 7,0
– variation max %  ±25 ±30
Value to be obtained for
the elongation at break
– minimum value %  150 110
– variation max %  ±25 ±30
Pressure test at high
IEC 60811-508
temperature
Test conditions:
– temperature °C
80±2 80±2
– duration for cables h  4 4
having an outer diameter
<12,5 mm
– duration for cables h  6 6
having an outer diameter
>12,5 mm
Value to be obtained:
– maximum permissible %  50 50
deformation
– 16 – IEC 60092-360:2014 © IEC 2014
Test method described in Type of sheathing compound
Test description Unit
Std Clause ST 2 SHF 1
Heat shock IEC 60811-509
Test conditions:
– temperature °C  150±3 150±3
– duration h  1 1
Result to be obtained:  No cracks No cracks
Loss of mass IEC 60811-409  Not applicable
Test conditions
– temperature °C  100±2
– duration h  168
Result to be obtained
mg/cm  1,5
Maximum loss of mass
Behaviour at low
temperature
Elongation test (for cables
IEC 60811-505
not subject to bending test)
Test conditions:
– temperature: °C
-15±2 -15±2
– duration h  4 4
Result to be obtained:
– elongation at break, min
30 30
a
Assessment of halogens  Not applicable
pH IEC 60754-2
≥4,3
-1
Conductivity IEC 60754-2
µS.mm ≤10
Amount of halogen acid
gas:
– HCl and HBr (maximum) % IEC 60754-1  0,5
– HF (maximum) % IEC 60684-2:2011 45 0,1
a
Test required when materials used in halogen free cables or identified as halogen-free compounds.

7 Additional optional properties of sheathing compounds
7.1 General
Additional optional requirements for enhanced oil resistance and drilling fluid resistance are
included in this clause.
7.2 Test requirements
The test requirements for enhanced characteristics of cross-linked sheathing compounds are
listed in Tables 9 and 10 hereinafter.

Table 9 – Test requirements for sheathing compounds
with enhanced oil resistance properties
Require-
Test method described in
ment
Test description for enhanced oil resistant types Unit
Standard Clause
Mechanical properties after ageing in IRM 902 IEC 60092-360 Annex C
Test conditions:
– temperature/tolerance of oil °C
100±2
– duration of treatment h  168
Result to be obtained:
– tensile strength, variation max %  ±40
– elongation at break, variation max
±40
– linear swell, variation max
±15
Table 10 – Test requirements for sheathing compounds
with drilling fluid resistance properties
Require-
Test method described in
ment
Test description for drilling fluid resistant types Unit
Standard Clause
Mechanical properties after ageing in IRM 903 IEC 60092-360 Annex C
Test conditions:
– temperature/tolerance of oil °C  100±2
– duration of treatment h  168
Result to be obtained:
– tensile strength, variation max %  ±30
– elongation at break, variation max
±30
– volume swelling, variation max
±30
– weight change, variation max
±30
Mechanical properties after ageing in calcium bromide IEC 60092-360 Annex D
brine
Test conditions:
– temperature/tolerance of fluid °C
70±2
– duration of treatment days  56
Result to be obtained:
– tensile strength, variation max %
±25
– elongation at break, variation max  ±25
– volume swelling, variation max  ±20
– weight change, variation max  ±15

– 18 – IEC 60092-360:2014 © IEC 2014
Annex A
(normative)
Determination of hardness of HEPR insulation

A.1 Test piece
The test piece shall be a sample of completed cable with all the coverings external to the
rubber surface to be measured carefully removed. Alternatively, a sample of insulated core
may be used.
A.2 Test procedure
A.2.1 General
Tests shall be made in accordance with ISO 48 with exceptions as indicated below.
A.2.2 Surfaces of large radius of curvature
The test instrument, in accordance with ISO 48, shall be constructed so as to rest firmly on
the rubber surface and permit the presser foot and indentor to make vertical contact with this
surface. This is done in one of the following ways:
a) the instrument is fitted with feet movable in universal joints so that they adjust themselves
to the curved surface;
b) the base of the instrument is fitted with two parallel rods A and A' at a distance apart
depending on the curvature of the surface (see Figure A.1).
These methods may be used on surfaces with a radius of curvature down to 20 mm.
When the thickness of rubber tested is less than 4 mm, an instrument as described in the
method in ISO 48 for thin and small test pieces shall be used.
A.2.3 Surfaces of small radius of curvature
On surfaces with too small a radius of curvature for the procedures described in A.2.2, the
test piece shall be supported on the same rigid base as the test instrument, in such a way as
to minimise bodily movement of the rubber surface when the indenting force increment is
applied to the indentor and so that the indentor is vertically above the axis of the test piece.
Suitable procedures are as follows:
a) by resting the test piece in a grove or trough in a metal jig (see Figure A.2 a);
b) by resting the ends of the conductor of the test piece in V-blocks (see Figure A.2 b).
The smallest radius of curvature of the surface to be measured by these methods shall be at
least 4 mm.
For smaller radii, an instrument as described in the method in ISO 48 for thin and small test
pieces shall be used.
A.2.4 Conditioning and test temperature
The minimum time between manufacture, i.e. vulcanisation, and testing shall be 16 h.

The test shall be carried out at a temperature of (20 ± 2) °C and the test pieces shall be
maintained at this temperature for at least 3 h immediately before testing.
A.2.5 Number of measurements
One measurement shall be made at each of three or five different points distributed around
the test piece. The median of the results shall be taken as the hardness of the test piece,
reported to the nearest whole number in International Rubber Hardness Degrees (IRHD).

A A'
IEC  1139/14
Figure A.1 – Testing surfaces of large radius of curvature

– 20 – IEC 60092-360:2014 © IEC 2014

IEC  1140/14 IEC  1141/14
a) Metal jig b) V blocks
Figure A.2 – Testing surfaces of small radius of curvature

Annex B
(normative)
Determination of the elastic modulus of HEPR insulation

B.1 Procedure
Sampling, preparation of the test pieces and the test procedure shall be carried out in
accordance with IEC 60811-201.
The loads required for 150 % elongation shall be measured. The corresp
...