Electrical installations in ships - Part 360: Insulating and sheathing materials for shipboard and offshore units, power, control, instrumentation and telecommunication cables

IEC 60092-360:2021 is available as IEC 60092-360:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60092:2021 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.

General Information

Status
Published
Publication Date
03-Jan-2021
Current Stage
PPUB - Publication issued
Completion Date
04-Jan-2021
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IEC 60092-360
Edition 2.0 2021-01
INTERNATIONAL
STANDARD
Electrical installations in ships –
Part 360: Insulating and sheathing materials for shipboard and offshore units,
power, control, instrumentation and telecommunication cables
IEC 60092-360:2021-01(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60092-360
Edition 2.0 2021-01
INTERNATIONAL
STANDARD
Electrical installations in ships –
Part 360: Insulating and sheathing materials for shipboard and offshore units,
power, control, instrumentation and telecommunication cables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.60 ISBN 978-2-8322-9229-7

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 60092-360:2021 © IEC 2021
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 ............................................................................... 13

5.1 General ................................................................................................................. 13

5.2 Mechanical characteristics .................................................................................... 13

6 Thermoplastic sheathing compounds ............................................................................. 15

6.1 General ................................................................................................................. 15

6.2 Mechanical characteristics .................................................................................... 16

7 Additional optional properties of sheathing compounds .................................................. 17

7.1 General ................................................................................................................. 17

7.2 Test requirements ................................................................................................. 17

Annex A (normative) Determination of hardness of HEPR insulation .................................... 19

A.1 Test piece ............................................................................................................. 19

A.2 Test procedure ...................................................................................................... 19

A.2.1 General ......................................................................................................... 19

A.2.2 Surfaces of large radius of curvature ............................................................. 19

A.2.3 Surfaces of small radius of curvature ............................................................. 20

A.2.4 Conditioning and test temperature ................................................................. 20

A.2.5 Number of measurements .............................................................................. 21

Annex B (normative) Determination of the elastic modulus of HEPR insulation .................... 22

B.1 Procedure ............................................................................................................. 22

B.2 Requirements ....................................................................................................... 22

Annex C (normative) Procedure for enhanced hot oil immersion test for sheaths ................. 23

C.1 Sampling and preparation of the test pieces .......................................................... 23

C.2 Determination of the cross-sectional area of the test piece ................................... 23

C.3 Oil to be used ....................................................................................................... 23

C.4 Procedure ............................................................................................................. 23

C.5 Expression of results ............................................................................................ 23

C.6 Requirements ....................................................................................................... 24

Annex D (normative) Procedure for drilling fluid immersion test for sheaths ......................... 25

D.1 Drilling fluid resistance test ................................................................................... 25

D.2 Test fluids ............................................................................................................. 25

D.3 Procedure ............................................................................................................. 25

D.4 Expression of results ............................................................................................ 25

D.5 Requirements ....................................................................................................... 26

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

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

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IEC 60092-360:2021 © IEC 2021 – 3 –

Table 1 – Categories and types of materials ........................................................................... 6

Table 2 – Types of cross-linked insulating compounds ............................................................ 9

Table 3 – Electrical requirements of insulation compounds ................................................... 10

Table 4 – Test requirements for cross-linked elastomeric insulating compounds ................... 11

Table 5 – Types of cross-linked sheathing compound ........................................................... 13

Table 6 – Test requirements for cross-linked sheathing compounds ...................................... 14

Table 7 – Types of thermoplastic sheathing compound ......................................................... 16

Table 8 – Test requirements for thermoplastic sheathing compounds .................................... 16

Table 9 – Test requirements for sheathing compounds with enhanced oil resistance

properties ............................................................................................................................. 18

Table 10 – Test requirements for sheathing compounds with drilling fluids resistance

properties (test for mud resistance)....................................................................................... 18

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– 4 – IEC 60092-360:2021 © IEC 2021
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

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

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

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

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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

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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 second edition cancels and replaces the first edition published in 2014. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) updates of normatives references;
b) replacement of linear swelling with volume swelling;
c) correction of a calculation mistake in Table 3;
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IEC 60092-360:2021 © IEC 2021 – 5 –

d) change in Table 4 and Table 6 (treatment conditions) of time under load (from 15 min to

10 min);

e) addition of mechanical properties after aging in oil based test fluid in Table 10 (CAS

number 64742-46-7; EC number: 934-956-3).
The text of this document is based on the following documents:
FDIS Report on voting
18A/437/FDIS 18A/440/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 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 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.
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– 6 – IEC 60092-360:2021 © IEC 2021
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 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 60092-350:2020, Electrical installations in ships – Part 350: General construction and test

methods of power, control and instrumentation cables for shipboard and offshore applications

IEC 60684-2:2011, Flexible insulating sleeving – Part 2: Methods of test

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 60811-201:2012, Electric and optical fibre cables – Test methods for non-metallic

materials – Part 201: General tests – Measurement of insulation thickness
IEC 60811-201:2012/AMD1:2017

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 60811-202:2012/AMD1:2017

IEC 60811-401:2012, Electric and optical fibre cables – Test methods for non-metallic

materials – Part 401: Miscellaneous tests – Thermal ageing methods – Ageing in an air oven

IEC 60811-401:2012/AMD1:2017
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IEC 60092-360:2021 © IEC 2021 – 7 –

IEC 60811-403:2012, Electric and optical fibre cables – Test methods for non-metallic

materials – Part 403: Miscellaneous tests – Ozone resistance test on cross-linked compounds

IEC 60811-404:2012, Electric and optical fibre cables – Test methods for non-metallic

materials – Part 404: Miscellaneous tests – Mineral oil immersion tests for sheaths

IEC 60811-409:2012, 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 60811-501:2012, 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 60811-501:2012/AMD1:2018

IEC 60811-505:2012, Electric and optical fibre cables – Test methods for non-metallic

materials – Part 505: Mechanical tests – Elongation at low temperature for insulations and

sheaths

IEC 60811-507:2012, Electric and optical fibre cables – Test methods for non-metallic

materials – Part 507: Mechanical tests – Hot set test for cross-linked materials

IEC 60811-508:2012, 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 60811-508:2012/AMD1:2017

IEC 60811-509:2012, 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)
IEC 60811-509:2012/AMD1:2017

ISO 48-2:2018, Rubber, vulcanised or thermoplastic – Determination of hardness – Part 2:

Hardness between 10 IRHD and 100 IRHD

ISO 1817, Rubber, vulcanised or thermoplastic – Determination of the effect of liquids

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:
• IEC Electropedia: available at http://www.electropedia.org/
http://www.iso.org/obp
• ISO Online browsing platform: available at
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.

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– 8 – IEC 60092-360:2021 © IEC 2021
3.2
median value

middle value if the number of available values is odd and mean of the two middle values if the

number is even, when several test results have been obtained and ordered in an increasing or

decreasing succession
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
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
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
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 S 95
3.4
types of sheathing compounds
3.4.1
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
chlorosulphonated polyethylene rubber
chlorinated polyethylene rubber

cross-linked compound in which the characteristic constituent is a synthetic chlorinated rubber

EXAMPLE Chlorosulphonated polyethylene (CSP) or chlorinated polyethylene (CPE), which is compliant with type

SH.
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IEC 60092-360:2021 © IEC 2021 – 9 –
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 Table 4, Table 6 or

Table 8
4 Cross-linked insulating compounds
4.1 General

The types of cross-linked insulating compound covered by this document 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
HF 90 90 250 Cross-linked polyolefin halogen-free
a b
S 95 95 350 Cross-linked silicone rubber

The normal maximum rated conductor temperature for silicone is 180 °C but it is limited in view of the type of

sheathing material used.

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

Table 3.
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– 10 – IEC 60092-360:2021 © IEC 2021
Table 3 – Electrical requirements of insulation compounds
Designation of the EPR HEPR XLPE HF 90 S 95
insulating compound
Insulation resistance constant K (MΩ·km)
(see 7.2 of IEC 60092-350:2020)
– at 20 °C, minimum, 3 670 3 670 3 670 550 1 850
– at maximum operating temperature, minimum. 3,67 3,67 3,67 0,55 1,85
Volume resistivity ρ(Ω·cm)
(see 7.2 of IEC 60092-350:2020)
15 15 15 14 14
– at 20 °C, minimum, 1,0 × 10 1,0 × 10 1,0 × 10 1,5 × 10 5,0 × 10
12 12 12 11 11

– at maximum operating temperature, minimum. 1,0 × 10 1,0 × 10 1,0 × 10 1,5 × 10 5,0 × 10

Increase in AC capacity after immersion in water
at 50 °C, (see 7.3 of IEC 60092-350:2020)
– between the end of the 1 and the end of the
15 15 – 15 15
14 day, maximum (%),
– between the end of the 7 and the end of the
5 5 – 5 5
14 day, maximum (%).
4.3 Mechanical characteristics

The test requirements for mechanical characteristics of cross-linked insulating compounds are

listed in Table 4.
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IEC 60092-360:2021 © IEC 2021 – 11 –
Table 4 – Test requirements for cross-linked elastomeric insulating compounds
Test method Type of insulating compound
described in
Test description Unit
Std Reference EPR HEPR XLPE HF 90 S 95
Mechanical IEC 60811-501
properties in the
state as delivered
Values to be
obtained for the:
– tensile strength, 2
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
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 10 10 10 10 10
min.
– mechanical stress
N/cm 20 20 20 20 20
---------------------- Page: 13 ----------------------
– 12 – IEC 60092-360:2021 © IEC 2021
Test method Type of insulating compound
described in
Test description Unit
Std Reference EPR HEPR XLPE HF 90 S 95
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 A 80
hardness IRHD
minimum
Determination of IEC 60092-360 Annex B
elastic modulus
Modulus at 150 % N/mm 4,5
elongation
(minimum)
Ozone resistance IEC 60811-403
test (method A or B)
Test conditions of – – – – –
method A
– temperature
°C 25 ± 2 25 ± 2 – 25 ± 2 –
– duration
h 30 30 – 30 –
– ozone
ppm 275 ± 25 275 ± 25 – 275 ± 25 –
concentration
No No cracks – No cracks –
Result to be obtained
cracks
Test conditions of – –
method B
– temperature
°C 40 ± 2 40 ± 2 – 40 ± 2 –
– duration
h 72 72 – 72 –
– ozone
% (200 ± (200 ± 50) – (200 ± 50) –
concentration, (by
50) x x x
volume) –6 –6 –6
10 10 10
– relative humidity
% 55 ± 10 55 ± 10 – 55 ± 10 –
– minimum air speed
mm/s 500 500 – 500 –
at the level of the
test piece
No No cracks No cracks
Result to be obtained
cracks
Assessment of
halogens
pH IEC 60754-2 ≥4,3 ≥4,3 ≥4,3 ≥4,3 ≥4,3
≤10 ≤10 ≤10 ≤10 ≤10
Conductivity µS·mm
Amount of halogen
acid gas:
– HCl and HBr
% IEC 60754-1 0,5 0,5 0,5 0,5 0,5
(max.)
% IEC 60684-2: 45 0,1 0,1 0,1 0,1 0,1
– HF (max.)
2011

Test required when materials are used in halogen-free cables or identified as a halogen-free compound.

---------------------- Page: 14 ----------------------
IEC 60092-360:2021 © IEC 2021 – 13 –
5 Cross-linked sheathing compounds
5.1 General

The types of cross-linked sheathing compound covered by this document 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 except for XLPE. Types

SE and SH are permitted even though it releases harmful fumes under fire conditions. SE and SH materials

should be avoided for installation in passenger vessels and in evacuation areas.
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. 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.
---------------------- Page: 15 ----------------------
– 14 – IEC 60092-360:2021 © IEC 2021
Table 6 – Test requirements for cross-linked sheathing compounds
Test method described
Type of cross-linked sheathing compound
Test description Unit
Std Clause
...

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