AS/NZS IEC 60092.350:2019

AS/NZS IEC 60092.350:2019 Electrical installations in ships General construction and test methods of power, control and instrumentation cables for shipboard and offshore applications

CONTENTS

FOREWORD

2 Normative references

3 Terms and definitions

4 Construction requirements

4.1 General requirements

4.1.1 General

4.1.2 Voltage designation

4.1.3 Cable marking

4.1.4 Core identification

4.1.5 Halogen-free cables

4.2 Conductors

4.2.1 Material

4.2.2 Metal coating and separator

4.2.3 Class and form

4.2.4 Resistance

4.3 Insulation system

4.3.1 Material

4.3.2 Application

4.3.3 Insulation thickness

4.4 Screens

4.4.1 Conductor and insulation screens for high-voltage cables

4.4.2 Screens (shields) for low voltage cables

4.5 Cabling

4.5.1 Multi-core cables

4.5.2 Multi-unit cables

4.6 Inner coverings, fillers and binders

4.7 Inner sheath

4.7.1 Material

4.7.2 Application

4.7.3 Thickness of inner sheath

4.8 Metal braid armour

4.8.1 Material

4.8.2 Application

4.9 Outer sheath

4.9.1 Material

4.9.2 Application

4.9.3 Thickness of outer sheath

5 Test methods

5.1 Test conditions

5.1.1 Ambient temperature

5.1.2 Frequency, waveform and magnitude of power-frequency test voltages

5.2 Routine tests

5.2.1 General

5.2.2 Measurement of the electrical resistance of the conductors

5.2.3 Voltage test

5.2.4 Partial discharge test

6 Sample tests

6.1 General

6.2 Frequency of sample tests

6.3 Repetition of tests

6.4 Conductor examination

6.5 Measurement of thickness of insulation

6.5.1 General

6.5.2 Procedure

6.5.3 Requirements

6.6 Measurements of thickness of non-metallic sheaths

6.6.1 General

6.6.2 Procedure

6.6.3 Requirements

6.7 Measurement of external diameter

6.8 Hot-set test for insulations and sheaths

6.8.1 General procedure

6.8.2 Requirements

6.9 Insulation resistance test (volume resistivity determination)

7 Type tests, electrical

7.1 General

7.2 Insulation resistance measurement

7.2.1 Measurement at ambient temperature

7.2.2 Measurement at maximum rated temperature

7.3 Increase in a.c. capacitance after immersion in water

7.3.1 General

7.3.2 Preparation of test specimens

7.3.3 Apparatus

7.3.4 Procedure

7.3.5 Requirements

7.4 High-voltage test for 4 h up to 1,8/3 kV

7.4.1 General

7.4.2 Requirement

7.5 Mutual capacitance (control and instrumentation cables only)

7.6 Inductance to resistance ratio (control and instrumentation cables only)

7.7 High voltage sequence test (cables having a voltage rating higher than 3,6/6 (7,2) kV)

7.7.1 General

7.7.2 Special provisions

7.7.3 Partial discharge test

7.7.4 Bending test

7.7.5 Tan δ measurement as a function of the voltage

7.7.6 Tan δ measurement as a function of the temperature

7.7.7 Heating cycle test plus partial discharge test

7.7.8 Impulse withstand test, followed by a power-frequency voltage test

7.7.9 High-voltage test for 4h

8 Type tests, non-electrical

8.1 General

8.2 Measurement of thickness of insulation

8.3 Measurement of thickness of non-metallic sheaths (excluding inner coverings)

8.4 Tests for determining the mechanical properties of insulation before and after ageing

8.4.1 Sampling

8.4.2 Ageing treatments

8.4.3 Conditioning and mechanical tests

8.4.4 Requirements

8.5 Tests for determining the mechanical properties of sheaths before and after ageing

8.5.1 Sampling

8.5.2 Ageing treatments

8.5.3 Conditioning and mechanical tests

8.5.4 Requirements

8.6 Additional ageing test on pieces of completed cables (compatibility test)

8.6.1 General

8.6.2 Sampling

8.6.3 Ageing treatment

8.6.4 Mechanical tests

8.6.5 Requirements

8.7 Loss of mass test on PVC ST2 sheath

8.7.1 Procedure

8.7.2 Requirements

8.8 Test for the behaviour of PVC ST2 and halogen-free SHF 1 sheaths at high temperature (hot pressure test)

8.8.1 Procedure

8.8.2 Requirements

8.9 Test for the behaviour of PVC sheath ST2 and halogen-free SHF 1 and SHF 2 sheaths at low temperature

8.9.1 Procedure

8.9.2 Requirements

8.10 Special test for low temperature behaviour (when required)

8.11 Test of the metal coating of copper wires

8.12 Galvanizing test

8.13 Test for resistance of PVC ST2 and halogen-free SHF1 sheaths to cracking (heat shock test)

8.13.1 Procedure

8.13.2 Requirements

8.14 Ozone resistance test for insulation and for sheaths

8.14.1 Procedure

8.14.2 Requirements

8.15 Hot oil immersion test and enhanced hot oil immersion test for sheaths

8.15.1 Hot oil immersion test

8.15.2 Enhanced hot oil immersion test (when required)

8.16 Mud drilling fluid test (when required)

8.17 Fire tests

8.17.1 Flame-spread test on single cables

8.17.2 Flame-spread test on bunched cables

8.17.3 Smoke emission test

8.17.4 Acid gas emission test

8.17.5 pH and conductivity test

8.17.6 Fluorine content test

8.17.7 Fire-resistance test (test for circuit integrity cables)

8.18 Determination of hardness for HEPR

8.19 Determination of elastic modulus for HEPR

8.20 Durability of print

Annex A (normative) Fictitious calculation method for determination of dimensions of protective coverings

A.1 Overview

A.2 General

A.3 Method

A.3.1 Conductors

A.3.2 Cores

A.3.3 Diameter over laid-up cores

A.3.4 Inner coverings

A.3.5 Sheath

A.3.6 Braid armour

Annex B (informative) Recommended minimum spark test voltage levels (according to IEC 62230)

B.1 General

B.2 Test voltages

B.2.1 General

B.2.2 Contact electrodes

B.2.3 Non-contact electrodes

Annex C (normative) Rounding of numbers

C.1 Rounding of numbers for the purpose of the fictitious calculation method

C.1.1 Rules

C.1.2 Illustrations

C.2 Rounding of numbers for other purposes

Annex D (normative) Calculation of the lower and upper limits for the outer dimensions of cables with circular copper conductors

D.1 General

D.2 Lower limit for the outer diameter

D.3 Upper limit for the outer diameter

D.4 Thickness of the mandatory or optional coverings other than the insulation and the sheath(s)

Annex E (normative) Cold bend test and impact test for low temperature behaviour

E.1 Cold bend test at any specified low temperature

E.1.1 Method No. 1

E.1.2 Method No. 2

E.1.3 Examination and Requirements

E.2 Impact test at any specified low temperature

E.2.1 Apparatus

E.2.2 Procedures

E.2.3 RequirementsNeither the insulation nor

Bibliography

Tables

Table 1 – Minimum size of conductors

Table 2 – Routine test voltage

Table 3 – Number of samples according to cable length

Table 4 – Tan δ versus voltage

Table 5 – Tan δ versus temperature

Table 6 – Impulse withstand voltages

Table 7 – Test methods and requirements for halogen-free components

Table A.1 – Fictitious diameter of conductor

Table A.2 – Increase of diameter for concentric conductors and metallic screens made of tape or wire

Table A.3 – Assembly coefficient k for laid–up

Table A.4 – Coefficient cf

Table B.1 – Recommended minimum spark-test voltages for cables having rated voltage (U0) between 150 V and 1 800 V

Table D.1 – Lower and upper limits of circular copper conductors for cables for fixed installations

Table E.1 – Details of low temperature bending test