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AS∕NZS 3599.1-2003 电压6.35∕11(12)KV及12.7∕22(24)KV聚合绝缘架空电力电缆 第1部分 金属屏蔽
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AS/NZS 3599.1:2003
Australian/New Zealand Standard™
Electric cables—Aerial bundled—Polymeric insulated—Voltages 6.35/11 (12) kV and 12.7/22 (24) kV
Part 1: Metallic screened
AS
/NZ
S 3
59
9.1
AS/NZS 3599.1:2003
This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee EL-003, Electric Wires and Cables. It was approved on behalf of the Council of Standards Australia on 8 August 2003 and on behalf of the Council of Standards New Zealand on 19 August 2003. It was published on 11 September 2003.
The following are represented on Committee EL-003:
Australasian Railway Association Australian Electrical and Electronic Manufacturers Association Australian Industry Group Canterbury Manufacturers Association of New Zealand Department of Defence, Australia Department of Mineral Resources, N.S.W. Electrical Contractors Association of New Zealand Electrical Regulatory Authorities Council Electricity Supply Association of Australia Institution of Engineers, Australia Ministry of Economic Development, New Zealand National Electrical and Communications Association
Keeping Standards up-to-date
Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased.
Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Australia web site at www.standards.com.au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue.
Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Standards organization.
We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia International or Standards New Zealand at the address shown on the back cover.
This Standard was issued in draft form for comment as DR 03049.
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AS/NZS 3599.1:2003
Australian/New Zealand Standard™
Electric cables—Aerial bundled—Polymeric insulated—Voltages 6.35/11 (12) kV and 12.7/22 (24) kV
Part 1: Metallic screened
Originated as AS 3599.1—1988. Jointly revised and designated AS/NZS 3599.1:2003.
COPYRIGHT
© Standards Australia/Standards New Zealand
All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.
Jointly published by Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020
ISBN 0 7337 5487 2
AS/NZS 3599.1:2003 2
PREFACE
This Standard was prepared by the Joint Standards Australia/Standards New Zealand
Committee EL-003, Electric Wires and Cables, and is based on requirements laid down by
the Electricity Supply Association of Australia. This Standard supersedes
AS 3599.1—1988.
The objective of the Standard is to specify construction, dimensions and test requirements
for cross-linked polyethylene insulated individually metallic screened, three phase, aerial
bundled cables (ABCs), steel wire supported, for working voltages 6.35/11 (12) kV and
12.7/22 (24) kV.
For reasons of standardization and rationalization, this Standard provides for the
construction, dimensions, and test requirements of only a limited range of individually
screened three-core cables.
This Standard is complementary to the range of cables covered in AS/NZS 3599.2, Electric
cables—Aerial bundled—Polymeric insulated—Voltages 6.35/11 (12) kV and 12.7/22
(24) kV, Part 2: Non-metallic screened, and in AS/NZS 1429.1, Electric cables—Polymeric
insulated, Part 1: For working voltages 1.9/3.3 (3.6) kV up to and including 19/33 (36) kV.
This Standard is generally compatible with the appropriate requirements specified in those
Standards.
This Standard differs from the previous edition in the following significant ways.
(a) The Standard has been published as a Joint Australian/New Zealand Standard.
(b) The specifications for the conductor screen, insulation and insulation screen have
been referenced to AS/NZS 1429.1.
(c) The HDPE sheath material has been referenced to AS/NZS 3808.
(d) The word ‘catenary’ has been deleted from the definition of the support wire.
(e) Current carrying capacities have been provided for both a 30°C and a 40°C ambient
air temperature.
(f) Recalculated values have been provided for the recommended copper screen wires
and the mechanical characteristics of the support wire.
The term ‘informative’ has been used in this Standard to define the application of the
appendix to which it applies. An ‘informative’ appendix is only for information and
guidance.
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3 AS/NZS 3599.1:2003
CONTENTS
Page
1 SCOPE........................................................................................................................ 4
2 REFERENCED DOCUMENTS.................................................................................. 4
3 DEFINITIONS............................................................................................................ 5
4 VOLTAGE DESIGNATION ...................................................................................... 6
5 MAXIMUM CONDUCTOR TEMPERATURES........................................................ 8
6 CONDUCTORS.......................................................................................................... 8
7 CONDUCTOR SCREEN ............................................................................................ 8
8 INSULATION............................................................................................................. 8
9 INSULATION SCREEN............................................................................................. 8
10 BEDDING TAPE........................................................................................................ 8
11 METALLIC SCREEN................................................................................................. 8
12 WATER-BLOCKING OF SCREENS (OPTIONAL) .................................................. 9
13 SEPARATOR TAPE(S) .............................................................................................. 9
14 SHEATH..................................................................................................................... 9
15 PHASE IDENTIFICATION...................................................................................... 10
16 CABLE IDENTIFICATION ..................................................................................... 10
17 METRE MARKING ................................................................................................. 10
18 SUPPORT WIRE ...................................................................................................... 10
19 LAYING UP ............................................................................................................. 12
20 PREPARATION FOR DELIVERY .......................................................................... 12
21 MARKING OF DRUMS........................................................................................... 12
22 TESTS....................................................................................................................... 13
APPENDICES
A CABLE DATA AND RECOMMENDATIONS......................................................... 16
B PURCHASING GUIDELINES.................................................................................. 21
C DIAMETER OF DRUM BARRELS AND INSTALLATION BENDING
RADII FOR CABLES................................................................................................ 22
AS/NZS 3599.1:2003 4
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STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND
Australian/New Zealand Standard
Electric cables—Aerial bundled—Polymeric insulated—Voltages 6.35/11 (12) kV and 12.7/22 (24) kV
Part 1: Metallic screened
1 SCOPE
This Standard specifies the construction, dimensions, and test requirements for cross-linked
polyethylene (XLPE) insulated, individually metallic screened, high density polyethylene
(HDPE) sheathed, steel wire supported, three phase, aerial bundled cable (ABC) (see
Figure 1), for electricity supply.
NOTES:
1 Cable data and recommendations to assist in the selection of the appropriate cables are given
in Appendix A.
2 Purchasing guidelines are provided in Appendix B.
2 REFERENCED DOCUMENTS
The documents below are referred to in this Standard.
AS
1222 Steel conductors and stays—Bare overhead
1222.1 Part 1: Galvanized (SC/GZ)
1222.2 Part 2: Aluminium clad (SC/AC)
3983 Metal drums for insulated electric cables and bare conductors
AS/NZS
1125 Conductors in insulated electric cables and flexible cords
1429 Electric cables—Polymeric insulated
1429.1 Part 1: For working voltages 1.9/3.3 (3.6) kV up to and including 19/33
(36) kV
1660 Test methods for electric cables, cords and conductors
1660.2.1 Part 2.1: Insulation, extruded semi-conductive screens and non-metallic
sheaths—Methods for general application
1660.2.2 Part 2.2: Insulation, extruded semi-conductive screens and non-metallic
sheaths—Methods specific to elastomeric, XLPE and XLPVC
materials
1660.3 Part 3: Electrical tests
2857 Timber drums for insulated electric cables and bare conductors
3008 Electrical installations—Selection of cables
3008.1.1 Cables for alternating voltages up to and including 0.6/1 kV—Typical
Australian installation conditions
3008.1.2 Cables for alternating voltages up to and including 0.6/1 kV—Typical New
Zealand installation conditions
3808 Insulating and sheathing materials for electric cables
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5 AS/NZS 3599.1:2003
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IEC
60986 Short-circuit temperature limits of electric cables with rated voltages from 6kV
(Um = 7,2 kV) up to 30 kV (Um = 36 kV)
ESAA (Electricity Supply Association of Australia)
HB C(b)1 Guidelines for design and maintenance of overhead distribution and
transmission lines
3 DEFINITIONS
For the purpose of this Standard, the following definitions apply.
3.1 Approximate value
A value which is neither guaranteed nor checked; e.g. it is used to calculate dimensions for
cable users.
3.2 Conductor screen
A layer or layers of non-metallic semiconductive material applied directly over the
conductor.
3.3 Core (of a cable)
An assembly comprising a conductor, semiconductive conductor screen, insulation and
semiconductive insulation screen.
3.4 Direction of lay
The slope of the conductor wires, screen wires, phase cable, or the like when the phase
cable or, in the case of complete cable, the cable bundle is held vertically.
It is right-hand when the slope is in the direction of the central part of the letter Z, and left-
hand when the slope is in the direction of the central part of the letter S.
3.5 Installation tests
Tests made on installed cable to demonstrate the integrity of the cable and its accessories.
3.6 Insulation screen
A layer or layers of non-metallic semiconductive material applied directly over the
insulation of each core.
3.7 Length of lay
The axial distance of one complete turn of the helix formed by a cable component, e.g. a
wire of the metallic screen or a phase cable.
3.8 Maximum conductor temperature
The maximum temperature at which the conductor of the cable may be operated and it is the
temperature resulting from the combined effect of the ambient conditions and the current
loading of the conductor.
3.9 Metallic screen
A screen of copper wires applied over each core.
AS/NZS 3599.1:2003 6
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3.10 Non-hygroscopic
Applied to a material, means that the material, after being preconditioned in an oven at
50 ±5°C for 24 ±1 h and allowed to cool in a desiccator, does not absorb more than
5 percent by weight of moisture during a 48 h treatment in humidity of 95 ±4 percent at a
temperature of 20 ±5°C.
3.11 Phase cable
An assembly comprising a core, tapes, metallic screen and sheath, which together form one
phase of the bundled cable (see Figure 2).
3.12 Routine tests
Tests made by the manufacturer on each manufactured length of cable to check that each
length meets the specified requirements.
3.13 Sample tests
Tests made by the manufacturer on samples of completed cable, or components taken from
completed cable, at a specified frequency, so as to verify that the finished product meets the
specified requirements.
3.14 Support wire
A steel member provided to support the three laid-up phase cables.
3.15 Type tests
Tests made before supplying, on a general commercial basis, a type of cable covered by this
Standard, in order to demonstrate satisfactory performance characteristics to meet the
intended application. These tests are of such a nature that, after they have been made, they
need not be repeated, unless changes are made in the cable materials or design or
manufacturing process, which might change the performance characteristics.
4 VOLTAGE DESIGNATION
The rated voltages are expressed in the form U0/U (Um):
where
U0 is the r.m.s. power frequency voltage to earth of the supply system for which
the cable is designed
U is the r.m.s. power frequency voltage between phases of the supply system for
which the cable is designed
Um is the maximum r.m.s. power-frequency voltage between any two conductors
for which cables and accessories are designed. It is the highest voltage that can
be sustained under normal operating conditions at any time and at any point in
a system. It excludes temporary voltage variations due to fault conditions and
sudden disconnection of large loads.
The rated voltages U0/U (Um) of the cables recognized in this Standard are 6.35/11 (12) kV
and 12.7/22 (24) kV.
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FIGURE 1 CROSS SECTION OF HV ABC
FIGURE 2 COMPONENTS OF ‘PHASE CABLE’ OF HV ABC
AS/NZS 3599.1:2003 8
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5 MAXIMUM CONDUCTOR TEMPERATURES
The temperature of the conductor shall not exceed the following values:
(a) Normal operation ............................................................................................. 90°C.
(b) Emergency operation ..................................................................................... 105°C.
(c) Short circuit operation (5 s max.) ................................................................... 250°C.
NOTES:
1 The maximum temperatures given are based upon the properties of the insulation materials
but in practice may need to be derated to take account of joints and terminations and
environmental conditions.
2 The emergency operation temperature is applicable for an average over several years, of not
more than one period per year. No period shall exceed 36 h and there shall not be more than
three periods in any 12 consecutive months.
3 At the emergency operating temperature the insulation material shall not suffer thermal
degradation. It may however suffer distortion due to external constraints caused by metallic
screens, terminations or joints.
6 CONDUCTORS
Conductors shall be stranded circular compacted aluminium in accordance with
AS/NZS 1125 for conductors other than aerial cables.
A rationalized range of conductor cross-sectional areas is given in Table 1.
7 CONDUCTOR SCREEN
The conductor screen shall comply with the requirements of AS/NZS 1429.1.
8 INSULATION
Insulation shall be XLPE and shall comply with the requirements of AS/NZS 1429.1.
9 INSULATION SCREEN
The insulation screen shall comply with the requirements of AS/NZS 1429.1 and shall be
designed to be hand-stripped without preconditioning (heating).
10 BEDDING TAPE
A textile reinforced semiconductive tape shall be applied over the insulation screen with an
overlap of 2 mm or 10 percent of the tape width, whichever is the larger. The
semiconductive tape may be water-swellable, as specified in Clause 12.2.
The thickness of the semiconductive tape, before application, shall be not less than 0.1 mm.
11 METALLIC SCREEN
11.1 Material and application
The metallic screen shall comprise plain annealed copper wires, helically applied so that it
is in electrical contact with the core throughout the length of cable. The screen wires shall
comply with the requirements of AS/NZS 1125. The individual screen wires shall have the
same nominal diameter, and not vary from the nominal by more than 5 percent. The length
of lay of the screen wires shall not exceed 10 times the overall diameter of the core.
The design gap, i.e. the gap between adjacent wires when equally spaced, calculated by
taking into account the number and nominal diameter of wires and the calculated pitch
circle diameter of the metallic screen, shall not exceed 4 mm.
NOTE: For further information see Appendices A and B.
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9 AS/NZS 3599.1:2003
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11.2 Electrical recommendations
See Appendix A.
12 WATER-BLOCKING OF SCREENS (OPTIONAL)
12.1 General
Water-blocking measures may be taken to restrict water penetration along the cable (in the
region of the metallic screens).
12.2 Materials and application
The blocking shall be achieved by a non-biodegradable, water-swellable tape applied under
or over the metallic screen wires. Where applied under the metallic screen, the tape shall be
semiconductive. This tape may replace the textile reinforced semiconductive tape specified
in Clause 10.
Where applied over the metallic screen it need not be semiconductive and may replace the
separator tape(s) specified in Clause 13.
NOTE: Other effective water-blocking materials may be acceptable with the exception of loose
powders, which might constitute a health risk (see Appendix B).
13 SEPARATOR TAPE(S)
Non-hygroscopic tape(s) shall be helically applied, with an overlap, over the metallic
screen, to prevent the penetration of sheath material between the screen wires. The tape(s)
shall be applied so as to avoid the formation of creases.
The separator tape may be water-swellable as specified in Clause 12.2.
14 SHEATH
14.1 Material
The sheath shall be black, high density polyethylene (HDPE) in accordance with
AS/NZS 3808.
14.2 Application
The sheath shall be applied over the screened and taped core. It shall be close fitting and be
readily removable using standard practices.
14.3 Thickness
The average thickness of sheath, determined by the method specified in AS/NZS 1660.2.1,
shall be not less than the thickness (ts) specified in Table 1 and the minimum thickness at
any point shall not fall below the specified thickness by more than 15 percent of the
specified thickness plus 0.1 mm, i.e.
minimum thickness = (0.85ts - 0.1 mm)
14.4 Criteria
The sheath taken from the finished cable, when subjected to the tests set out in Table 2,
shall comply with the requirements specified in Table 2.
14.5 Tests
The tests shall be made as set down in Table 2. The category of each test shall be as
specified in Table 2.
14.6 Spark test
The sheath shall be subjected to a spark test, normally during manufacture, in accordance
with Table 2, Test 6(c).
AS/NZS 3599.1:2003 10
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15 PHASE IDENTIFICATION
15.1 Identification of cores
Identification of cores shall comply with AS/NZS 1429.1.
15.2 Identification on sheath
In addition to the identification of cores, the sheath of each phase cable shall be marked
with phase numbers matching those of the cores. The numbers may be embossed, or printed
legibly, in a colour contrasting with that of the sheath surface, at intervals not exceeding
500 mm. The height of the individual characters shall be not less than 3 mm.
There shall be no indented marking on the sheath.
Where the cores are identified by coloured stripes or strips, the corresponding numerals
shall be 1, 2 and 3 for colours red, white and blue respectively.
16 CABLE IDENTIFICATION
The cable identification shall comprise embossing of the sheath(s) or the use of non-
hygroscopic tape(s), inserted throughout the length, under the sheath of one or more of the
phase cables. The information embossed on the sheath(s) or printed on the tape(s) shall
include the following:
Cable designated voltage Legend to be marked
6.35/11 (12) kV ELECTRIC CABLE 6.35/11 kV
12.7/22 (24) kV ELECTRIC CABLE 12.7/22 kV
In the case of embossing, the letters and figures shall comprise upright block characters
arranged along two approximately diametrically opposed lines, except that in the case of
phase cables with a diameter less than or equal to 30 mm one line of characters is
acceptable. The height of the characters shall be not less than 15% of the nominal diameter
of the phase cable, but in no case shall it be less than 3 mm nor greater than 13 mm. The
gap between one set of characters and the beginning of the next shall be not greater than
500 mm.
17 METRE MARKING
One phase core in each cable length shall be sequentially marked, numerically, at 1 m
intervals. The metre marking shall be limited to six digits and any drum length may start at
any integral number.
The cable shall be wound on the drum with the lowest number at the drum barrel (cable
inner) end.
NOTE: The metre marking, although adequate for establishing the approximate length of cable
left on the drum following earlier use (cutting) of part of the drum length, should not be relied on
for establishing the precise length left.
18 SUPPORT WIRE
The support wire shall comprise bare stranded galvanized steel wires complying with the
requirements of AS 1222.1. The size of the wire shall be as specified in Table 1.
For use in corrosive environments, the support wire shall consist of aluminium-clad steel
wires in accordance with AS 1222.2, in which case the size of the wire shall be selected
from the sizes listed in AS 1222.2 (see Appendices A and B)
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11
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TA
BL
E
1
CA
BL
E D
IM
EN
SIO
NS
1
2
3
4
5
6
7
8
Insu
lati
on
th
ick
ness
S
hea
th t
hic
kn
ess
(ts)
Su
pp
ort
wir
e s
ize
No
min
al
cro
ss-
secti
on
al
area
of
co
nd
ucto
r6
.35
/11
(1
2)
kV
ca
ble
12
.7/2
2 (
24
) k
V
ca
ble
Min
imu
m t
hic
kn
ess
at
an
y p
oin
t o
f ex
tru
ded
insu
lati
on
screen
6
.35
/11
(1
2)
kV
ca
ble
12
.7/2
2 (
24
) k
V
ca
ble
6.3
5/1
1 (
12
) k
V
ca
ble
12
.7/2
2
(24
) k
V
ca
ble
mm
2
mm
m
m
mm
m
m
mm
N
o/m
m
No
/mm
35
3
.4
5.5
0
.60
1
.8
1.8
7
/2.0
0
7/2
.00
35
3
.4
5.5
0
.60
1
.8
1.8
1
9/2
.00
1
9/2
.00
50
3
.4
5.5
0
.60
1
.8
1.8
1
9/2
.00
1
9/2
.00
70
3
.4
5.5
0
.60
1
.8
1.8
1
9/2
.00
1
9/2
.00
95
3
.4
5.5
0
.60
1
.8
1.9
1
9/2
.00
1
9/2
.00
12
0
3.4
5
.5
0.6
0
1.8
1
.9
19
/2.0
0
19
/2.0
0
15
0
3.4
5
.5
0.6
0
1.8
2
.0
19
/2.0
0
19
/2.0
0
18
5
3.4
5
.5
0.6
0
1.9
2
.0
19
/2.0
0
19
/2.0
0
NO
TE
S:
1
Co
nd
ucto
r n
om
inal
are
as
sho
wn
in
bo
ld t
yp
e a
re p
refe
rred
siz
es.
2
Fo
r 3
5 m
m2 b
un
dle
d c
ab
le u
sin
g a
7/2
.00
mm
su
pp
ort
wir
e s
ee A
pp
en
dix
A.
AS/NZS 3599.1:2003
AS/NZS 3599.1:2003 12
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19 LAYING UP
The three phase cables shall be laid up around the support wire, with a length of lay not less
than 22 times nor more than 25 times the overall diameter of the circumscribing circle (see
Note) over the laid up bundled cable. The direction of lay shall be right-hand.
NOTE: The circumscribing circle diameter (C) is derived from the equation:
C = 2D + ds
where
D = the diameter of one phase cable
ds = the diameter of the support wire
20 PREPARATION FOR DELIVERY
The bundled cable shall be wound onto timber drums manufactured in accordance with
AS/NZS 2857 or steel drums manufactured in accordance with AS 3983.
The drums shall be suitable for outdoor storage (see Appendix B).
Every drum length of cable shall meet the following requirements:
(a) Both ends of each phase cable shall be sealed to prevent the ingress of water. (See
Appendix B).
(b) Both ends of the cable shall be fitted with a temporary binder to prevent the phase
cables separating.
(c) One end of the bundled cable shall be coloured red and the other shall be coloured
green. When facing the cable end, the end at which the rotational sequence of the
phase cables (Nos 1, 2, 3) is clockwise shall be coloured red and the other end shall
be coloured green.
The temporary binder (see Item (b)) may be coloured to satisfy this requirement.
(d) The bundled cable shall be wound on the drum so that the red end is at the drum
barrel and at least 0.2 m of phase cable and not less than 0.5 m of support wire, at the
inner end, shall protrude and be anchored to the drum.
(e) Cable drums shall be lagged to protect the cable from damage. The end of the cable
projecting from the drum barrel shall also be protected.
21 MARKING OF DRUMS
Every drum of cable shall be branded or labelled on the outside of the flange giving the
following information:
(a) A manufacturer’s traceability number preceded by the words “DRUM No.”.
(b) A registered name or registered mark, which enables the manufacturer or supplier of
the cable to be identified.
(c) The rated operating voltage expressed in the form U0/U followed by the legend ‘ABC
to AS/NZS 3599.1’.
(d) The conductor and metallic screen size per phase cable in square millimetres.
(e) Length of cable and start and finish length markings.
(f) The gross mass of the drum and cable.
(g) An arrow to indicate the recommended direction for rotation of the drum.
NOTE: Manufacturers making a statement of compliance with this Australian/New Zealand
Standard on a product, packaging or promotional material related to that product are advised to
ensure that such compliance is capable of being verified.
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22 TESTS
22.1 General
The completed bundled cable shall comply with the tests specified in Clause 22.
The tests, pass criteria, category and reference for test method for cables manufactured to
this Standard are given in Table 2 (see Clause 3 for definitions of ‘type’, ‘routine’ and
‘sample’ tests).
A type test includes all tests specified in Table 2, including the routine and sample tests.
The results of the tests shall be recorded and shall be available in the form of a test report.
A type test on any 12.7/22 kV cable will qualify all 6.35/11 kV cables.
A type test on a cable of conductor size and stated voltage rating will qualify all cables of
conductor sizes equal to and above for that voltage rating (see Appendix B).
The frequency of sample tests is given in Clause 22.2 (see Appendix B).
Type tests performed on cables to AS/NZS 1429.1 shall be considered as evidence of
compliance with Tests 1 to 7.
22.2 Selection of samples
Where a full type test to this Standard is to be performed, type tests 7(d), (e), (f), (g), (h)
and (i) of Table 2 shall be carried out sequentially on the one sample of completed cable
10 m to 15 m in length. A new sample may be taken and submitted to test 7(i) provided that
it is first subjected to tests 7(d) and (g).
Samples for sample tests shall be taken from bundled cables, manufactured for any contract
where the total length exceeds 2 km, on the following basis:
(a) One sample for cables >2 ≤10 kilometres.
(b) Two samples for cables >10 ≤20 kilometres.
(c) One additional sample for each successive 10 kilometres of cable.
Should any sample fail in any of the sample tests, two further samples shall be taken from
the same batch and subjected to the test or tests in which the original sample failed. Should
both additional test samples pass the test or tests, all the drum lengths in the batch from
which they were taken should be regarded as complying with the requirements of this
Standard. Should either of them fail, the batch of which these samples were representative
should be regarded as failing to comply (see Appendix B).
AS/NZS 3599.1:2003 14
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TABLE 2
SCHEDULE OF TESTS
Test Pass criteria Category
of test
Reference
for test method
1. Conductor
All appropriate tests on conductors taken
from the completed cable
As specified in AS/NZS 1125 for the appropriate conductor with the
conductor resistance test performed as a Routine Test
2. Conductor screen
All appropriate tests on the conductor
screen
As specified in AS/NZS 1429.1
3. Insulation
All appropriate tests on the insulation
taken from the completed cable
As specified in AS/NZS 1429.1
4. Insulation screen
All appropriate tests on the insulation
screen
As specified in AS/NZS 1429.1
5. Metallic screen
All appropriate tests on the metallic
screen
As specified in AS/NZS 1429.1
6. Sheath
(a) All appropriate tests on the sheath
taken from the completed cable
As specified in AS/NZS 3808
(b) Thickness As specified in Clause 14 and
Table 1
Sample AS/NZS 1660.2.1
(c) Spark test No breakdown Routine AS/NZS 1660.3,
as for insulation
7. Cable
(a) Partial discharge test As specified in AS/NZS 1429.1 Routine AS/NZS 1429.1
(b) High voltage test for 5 min No breakdown Routine AS/NZS 1429.1
(c) Bending test followed by partial
discharge test, performed on one
phase core taken from the finished
cable
The requirements as for test 9(a)
shall apply
Type AS/NZS 1429.1
(d) DDF (tan δ) measurement at elevated
temperature
Maximum tan δ at 95 + 5, −0°C;
80 × 10−4
Type AS/NZS 1660.3
(e) Heat cycling test followed by partial
discharge test
The requirements as for test 9(a)
shall apply
Type AS/NZS 1429.1
(f) Impulse withstand test followed by a
high voltage test
No breakdown Type AS/NZS 1429.1
(g) High voltage a.c. test for 4 h No breakdown Type AS/NZS 1429.1
(h) Water-penetration test (applicable
only to cables incorporating water-
blocking measures)
There shall be no evidence of water
leakage at the cable ends
Type AS/NZS 1429.1
(i) Compatibility test after ageing in an
air oven for insulation and sheath
Type AS/NZS 1660.2.2
Duration: 240 h
Temperature: 100 ±2°C
(continued)
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15 AS/NZS 3599.1:2003
COPYRIGHT
Test Pass criteria Category
of test
Reference
for test method
(i) Tensile strength, minimum, for
each material (percentage of
value found in unaged specimen)
75%
(ii) Elongation at rupture, minimum,
for each material (percentage of
value found in unaged specimen)
65%
8. Support wire
Tests on wire samples—
(a) Galvanizing test In accordance with AS 1221.1 Sample AS 1222.1
or
(b) Tensile test In accordance with AS 1222.1 and
AS 1222.2
Sample AS 1222.2
as
(c) Torsion or elongation test In accordance with AS 1222.1 and
AS 1222.2
Sample appropriate
(d) Wrapping test In accordance with AS 1222.1 and
AS 1222.2
Sample
(e) Dimensional test In accordance with AS 1222.1 and
AS 1222.2
Routine
TABLE 2 (continued)
AS/NZS 3599.1:2003 16
COPYRIGHT
APPENDIX A
CABLE DATA AND RECOMMENDATIONS
(Informative)
A1 SCOPE
This Appendix provides tabulated data and recommendations additional to that earlier
specified in this Standard, and is given primarily to assist in the selection of the appropriate
cable.
A2 MAXIMUM CONDUCTOR TEMPERATURE
The value of 90°C specified in Tables A1 and A2 is based on consideration of performance
of fittings and strength of conductors.
A3 CURRENT CARRYING CAPACITY
The values in Tables A1 and A2 for typical Australian installation conditions are for a 40°C
ambient air temperature as specified in AS/NZS 3008.1.1. For typical New Zealand
installation conditions an ambient air temperature of 30°C is applied as specified in
AS/NZS 3008.1.2. In each case, a wind speed of 1 m/s normal to the axis of the cable and a
solar radiation of 1000 W/m2 applies.
A4 RECOMMENDED SIZE FOR METALLIC SCREEN
When calculated by the adiabatic method, set out in IEC 60986 to ensure that under fault
conditions the transient temperature of the screen does not exceed 250°C based on an initial
temperature of 80°C, the recommended metallic screen dimensions are as given in
Table A3.
A5 EVERYDAY TENSION AND MAXIMUM WORKING TENSION
The everyday tension (EDT), also referred to as ‘sustained load’, is the long-term average
tension in the support wire. For design purposes it is usual to use a tension at a reference
temperature with no transverse wind pressure. In Australia the temperature normally used is
15°C. Other conditions may be used in special circumstances.
The maximum working tension (MWT) is the maximum short-term tension in the support
wire. For design purposes it is usual to calculate tension at a reference temperature with
transverse wind pressure and where applicable to calculate tension at a low temperature
with no transverse wind.
There are many criteria used to allow for the various climatic conditions experienced in
parts of Australia such as cyclonic winds and ice loadings.
Further information about the design of overhead lines is given in ESAA HB C(b)1.
The EDT and MWT should not exceed the values given in Table A4.
No mechanical tension should be imparted to the phase cables.
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17 AS/NZS 3599.1:2003
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A6 SELECTION OF SUPPORT WIRE
A6.1 Use of 7/2.00 mm wire
The preferred support wire size is 19/2.00 mm in accordance with AS 1222.1. However, the
smaller size of 7/2.00 mm may be used with a 35 mm2 aerial bundled cable at the discretion
of the user where the lower strength wire is sufficient for the application.
A6.2 Use of aluminium-clad wire
In a corrosive environment, e.g. close to the sea coast, a support wire of aluminium-clad
steel in accordance with AS 1222.2 should be used.
Users should select a support wire that will provide sufficient mechanical strength for the
application, from the sizes given in AS 1222.2.
COPYRIGHT
18
TA
BL
E
A1
6.3
5/1
1 (
12
) k
V A
ER
IAL
BU
ND
LE
D C
AB
LE
S
Ref .
no
C
ha
ra
cte
ris
tic
Un
it
Ca
lcu
late
d o
r r
eco
mm
en
ded
va
lues,
as
ap
pro
pria
te *
1
No
min
al
are
a o
f co
nd
ucto
r m
m2
35
5
0
70
9
5
12
0
15
0
18
5
Su
pp
ort
wir
e
siz
e (
mm
) †
19
/2.0
0
7/2
.00
2
Max
imu
m a
.c.
resi
stan
ce o
f co
nd
ucto
r in
cab
le a
t 9
0°C
Ω
/km
1
.11
1
.11
0
.82
2
0.5
68
0
.41
1
0.3
25
0
.26
5
0.2
11
3
Po
siti
ve s
eq
uen
ce r
eacta
nce o
f cab
le a
t 5
0 H
z
Ω/k
m
0.1
58
0
.15
0
0.1
52
0
.14
1
0.1
33
0
.12
8
0.1
24
0
.11
9
4
Max
imu
m c
on
tin
uo
us
cu
rren
t carr
yin
g c
ap
acit
y p
er
ph
ase
(se
e P
ara
gra
ph
A
3)
(a)
Fo
r a 4
0°C
am
bie
nt
air
tem
pera
ture
(b)
Fo
r a 3
0°C
am
bie
nt
air
tem
pera
ture
A
15
5
18
5
15
5
18
5
18
5
21
0
23
0
26
0
28
0
31
5
32
5
36
5
37
0
41
5
42
5
47
5
5
Ap
pro
xim
ate
mass
of
cab
le
kg
/km
2
37
0
20
70
2
85
0
34
80
4
04
0
43
30
4
72
0
50
70
6
Ph
ase
cab
le d
iam
ete
r (n
om
inal)
m
m
24
2
4
25
2
7
29
3
1
32
3
4
7
Bu
nd
led
cab
le d
iam
ete
r (n
om
inal)
(a
) C
ircu
msc
rib
ing
cir
cle
m
m
58
5
4
62
6
6
69
7
2
75
7
8
(b
) A
pp
rox
imate
pro
jecte
d d
iam
ete
r, f
or
calc
ula
tin
g w
ind
lo
ad
m
m
53
5
1
57
6
1
64
6
7
70
7
3
* C
on
du
cto
r si
zes
sho
wn
in
bo
ld t
yp
e a
re p
refe
rred
siz
es.
† S
ee T
ab
le 1
an
d P
ara
gra
ph
A6
.1.
18
AS/NZS 3599.1:2003
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COPYRIGHT
19 AS/NZS 3599.1:2003
TA
BL
E
A2
12
.7/2
2 (
24
) k
V A
ER
IAL
BU
ND
LE
D C
AB
LE
S
Ref.
no
C
ha
ra
cte
ris
tic
Un
it
Ca
lcu
late
d o
r r
eco
mm
en
ded
va
lues,
as
ap
pro
pria
te*
1
No
min
al
are
a o
f co
nd
ucto
r m
m2
35
5
0
70
9
5
12
0
15
0
18
5
Su
pp
ort
wir
e
siz
e (
mm
) †
19
/2.0
0
7/2
.00
2
Max
imu
m a
.c.
resi
stan
ce o
f co
nd
ucto
r in
cab
le a
t 9
0°C
Ω
/km
1
.11
1
.11
0
.82
2
0.5
68
0
.41
1
0.3
25
0
.26
5
0.2
11
3
Po
siti
ve s
eq
uen
ce r
eacta
nce o
f cab
le a
t 5
0 H
z
Ω/k
m
0.1
66
0
.15
9
0.1
59
0
.14
8
0.1
40
0
.13
5
0.1
31
0
.12
6
4
Max
imu
m c
on
tin
uo
us
cu
rren
t carr
yin
g c
ap
acit
y p
er
ph
ase
(se
e P
ara
gra
ph
A3
)
(a)
Fo
r a 4
0°C
am
bie
nt
air
tem
pera
ture
(b)
Fo
r a 3
0°C
am
bie
nt
air
tem
pera
ture
A
15
0
17
0
15
0
17
0
18
5
20
5
23
0
26
0
28
0
31
5
32
0
36
0
36
5
41
0
41
5
47
0
5
Ap
pro
xim
ate
mass
of
cab
le
kg
/km
2
82
0
25
30
3
32
0
40
40
4
65
0
50
00
5
42
0
58
40
6
Ph
ase
cab
le d
iam
ete
r (n
om
inal)
m
m
28
2
8
29
3
2
33
3
5
37
3
9
7
Bu
nd
led
cab
le d
iam
ete
r (n
om
inal)
(a
) C
ircu
msc
rib
ing
cir
cle
m
m
67
6
3
71
7
5
78
8
1
85
8
8
(b
) A
pp
rox
imate
pro
jecte
d d
iam
ete
r, f
or
calc
ula
tin
g w
ind
lo
ad
m
m
62
6
0
66
7
0
73
7
6
80
8
3
* C
on
du
cto
r si
zes
sho
wn
in
bo
ld t
yp
e a
re p
refe
rred
siz
es.
† S
ee T
ab
le 1
an
d P
ara
gra
ph
A6
.1.
AS/NZS 3599.1:2003 20
COPYRIGHT
TABLE A3
RECOMMENDED NUMBER AND NOMINAL DIAMETER* OF COPPER SCREEN
WIRES PER PHASE CABLE AND TOTAL CROSS-SECTIONAL AREAS
Short circuit conditions
2 kA for 1 s
Short circuit conditions
8 kA for 1 s Phase conductor
cross-sectional
area mm2
No/mm
Total screen cross
sectional area
mm2
No/mm
Total screen cross-
sectional area
mm2
35 24/0.85 40/0.85† 23
50 24/0.85 23/1.35 33
70 24/0.85 32/1.35† 46
95 24/0.85* 38/1.35 54
120 24/0.85* 38/1.35 54
150 24/0.85* 38/1.35 54
185 24/0.85*
14
38/1.35 54
* In certain cases, particularly for cables having conductors of 95 mm2 or larger, and having a 2 kA short
circuit rating, a larger number of wires may be required to achieve the required screen coverage.
† The short circuit current rating is limited by the short circuit current rating of the conductor.
TABLE A4
MECHANICAL CHARACTERISTICS OF SUPPORT WIRE
Calculated or recommended values,
as appropriate Reference
noCharacteristic Unit
7/2.00 mm 19/2.00 mm
1 Minimum breaking
load
kN 26.0 70.5
2 Modulus of elasticity GPa 170 166
3 Coefficient of linear
expansion
K-1 11.5 × 10−6 11.5 × 10−6
4 Highest values for
maximum working
tension (50% MBL)*
kN 13.0 35.3
5 Highest values for
everyday tension
(25% MBL)
kN 6.5 17.6
* In most installations lower values will be used.
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APPENDIX B
PURCHASING GUIDELINES
(Informative)
B1 GENERAL
Australian/New Zealand Standards are intended to include the technical requirements for
relevant products, but do not purport to comprise all the necessary provisions of a contract.
This Appendix contains advice and recommendations on the information to be supplied by
the purchaser at the time of enquiry or order.
B2 INFORMATION TO BE SPECIFIED BY THE PURCHASER
The purchaser should supply the following information at the time of enquiry and order,
after making due reference to the explanation, advice and recommendations contained in
this Appendix:
(a) The number of this Standard, i.e. AS/NZS 3599.1.
(b) Cable rated voltage.
(c) Conductor size, i.e. nominal cross-sectional area.
(d) The screen electrical requirements (see Clause 11).
(e) Choice of support wire, size and type (see Clause 18)
(f) Where water-blocking of metallic screen is required (see Clause 12).
(g) The cable length and individual drum lengths required.
B3 ITEMS SUBJECT TO AGREEMENT BETWEEN PURCHASER AND
MANUFACTURER
The following items are subject to agreement between the purchaser and manufacturer:
(a) For water-blocking cables, the method of water-blocking if other than by tapes (see
Clause 12).
(b) Type of drum to be used, where specific drum requirements apply, and cable
protection measures, i.e. wrapping or lagging (see Clause 20).
(c) Method for sealing ends of cable against ingress of water during storage, delivery and
while awaiting installation.
(d) Whether a type test report is required.
AS/NZS 3599.1:2003 22
COPYRIGHT
APPENDIX C
DIAMETER OF DRUM BARRELS AND INSTALLATION BENDING
RADII FOR CABLES
(Informative)
C1 DIAMETER OF DRUM BARRELS
The recommended minimum diameter of a drum barrel is determined by reference to the
overall diameter of the circumscribing circle over the bundled cable (see Clause 19)
multiplied by the factor specified in Table C1.
C2 INSTALLATION BENDING RADII
The recommended minimum installation bending radii for cable is determined by reference
to the overall diameter of the circumscribing circle over the bundled cable (see Clause 19)
or the phase cable, as appropriate, multiplied by the appropriate factor specified in
Table C1.
TABLE C1
RECOMMENDED DIAMETER OF DRUM BARREL AND INSTALLATION
BENDING RADII
Multiplying factor
Installation bending radii
Phase cable or
bundled cable Diameter
of drum
barrelDuring
installation
Installed
(a) Bundled cable 12 15 10
(b) Phase cable — 25 15
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23 AS/NZS 3599.1:2003
NOTES
AS/NZS 3599.1:2003 24
NOTES
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