Technical Standard - TS-107
Overhead Line Design Standard for Transmission & Distribution Systems
Published: 7 December 2012
SA Power Networks
www.sapowernetworks.com.au
TS-107
Authorised: Jehad Ali
Date of Publication: 07 December 2012
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Revision Notice:
Date
Explanation

September 2010

3 September 2012
7 December 2012



Interim update to TS107.
Appendix-B table: “WB Sub-Transmission Poles” on pages 25, 26,
& 27 updated only.
Company name change only. No other content of this Technical
Standard has been altered. Any revision markings are from the
September 2010 edition.
Amended Format and Enhanced Appendix-A only.
No other content of this Technical Standard has been altered.
Changes to be followed as of September 2010 edition.
SA Power Networks:
SA Power Networks means Distribution Lessor Corporation subject to a two hundred year lease to the
partnership of companies trading as SA Power Networks or SA Power Networks in its own right.
SA Power Networks, ABN 13 332 330 749, a partnership of:
Spark Infrastructure SA (No.1) Pty Ltd, ABN 54 091 142 380
Spark Infrastructure SA (No.2) Pty Ltd, ABN 19 091 143 038
Spark Infrastructure SA (No.3) Pty Ltd, ABN 50 091 142 362 each incorporated in Australia.
CKI Utilities Development Limited, ABN 65 090 718 880
PAI Utilities Development Limited, ABN 82 090 718 951 each incorporated in The Bahamas.
1 Anzac Highway, Keswick, South Australia, 5035.
SA Power Networks Disclaimer:
1. The use of the information contained in this Technical Standard is at your sole risk.
2. The information in this Technical Standard is subject to change without notice.
3. SA Power Networks, its agents, instrumentalities, officers and employees:
a) Make no representations, express or implied, as to the accuracy of the information contained in this
Technical Standard;
b) Accept no liability for any use of the said information or reliance placed on it; and
c) Make no representations, either expressed or implied, as to the suitability of the said information for
any particular purpose.
4. SA Power Networks and its agencies and instrumentalities do not endorse or in any respect warrant any
third party products or services by virtue of any information, material or content referred to or included
on, or linked from or to this Technical Standard.
©
SA Power Networks Copyright 2012:
This publication is copyright. SA Power Networks reserves to itself all rights in such material. You must not
reproduce any content of this Technical Standard by any process without first obtaining
SA Power Networks permission, except as permitted under the Copyright Act 1968.
All rights reserved
TS-107
Authorised: Jehad Ali
Date of Publication: 07 December 2012
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Please Note: Appendix F and Appendix G are not included in this document but can be found in a separate
file on the SA Power Networks intranet site.
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
1.
PURPOSE ........................................................................................................ 6
2.
SCOPE............................................................................................................. 6
3.
REFERENCES ................................................................................................... 6
4.
DEFINITIONS................................................................................................... 6
5.
LAND CATEGORY ............................................................................................ 6
6.
POLES ............................................................................................................. 7
7.
8.
9.
6.1
General ..................................................................................................................... 7
6.2
Design Information .................................................................................................... 7
6.3
Pole Selection ........................................................................................................... 7
6.4
Loading Parameters on Poles ..................................................................................... 8
6.5
Longitudinal Wind ..................................................................................................... 8
6.6
Standard Location of Poles ........................................................................................ 9
FOOTINGS ...................................................................................................... 9
7.1
General ..................................................................................................................... 9
7.2
Soil Types.................................................................................................................. 9
7.3
Footing Types............................................................................................................ 9
7.4
Materials ................................................................................................................ 10
7.5
Formers .................................................................................................................. 10
7.6
Footing Orientation ................................................................................................. 10
CONDUCTORS............................................................................................... 10
8.1
Definitions for Conductor Tensions .......................................................................... 10
8.2
General ................................................................................................................... 11
8.3
Tension ................................................................................................................... 11
8.4
Side Swing .............................................................................................................. 11
8.5
Measurements of As-Built Condition ........................................................................ 11
POLE TOP CONSTRUCTIONS .......................................................................... 11
9.1
Pole top Assemblies ................................................................................................ 11
9.2
Line Hardware......................................................................................................... 11
9.3
Network Directive ND J4 .......................................................................................... 12
9.4
Bushfire and Non-Bushfire Risk Areas ....................................................................... 12
9.5
Corrosion Zones and High Pollution Zones ................................................................ 12
9.6
High Load Corridors ................................................................................................. 12
TS-107
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Date of Publication: 07 December 2012
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Contents
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
10.1 Suspension.............................................................................................................. 12
10.2 Tension ................................................................................................................... 13
10.3 Post (66kV only) ...................................................................................................... 13
10.4 Pin (11kV) ............................................................................................................... 13
11. ELECTRICAL REQUIREMENTS......................................................................... 13
11.1 Rated Voltage ......................................................................................................... 13
11.2 Lightning Withstand Voltage .................................................................................... 14
11.3 I2t Rating ................................................................................................................. 14
11.4 Electrical Clearances ................................................................................................ 14
12. OTHER CONSIDERATIONS ............................................................................. 14
12.1 Ferro-resonance ...................................................................................................... 14
Appendix A: Conductor Design Constants ............................................................ 15
A-1: All Aluminium Conductors (AAC) - Metric............................................................................... 15
A-2: All Aluminium Conductors (AAC) - Imperial............................................................................ 16
A-3: All Aluminium Conductors (ACSR/GZ & ACSR/AZ) - Metric .................................................. 17
A-4: All Aluminium Conductors (ACSR/GZ & ACSR/AZ) - Imperial ............................................... 18
A-5: All Galvanised Steel Conductors (SC/GZ) - Metric ................................................................. 19
A-6: All Galvanised Steel Conductors (SC/GZ) - Imperial .............................................................. 20
A-7: Hard Drawn Copper Conductors - Imperial ............................................................................ 21
A-8: All Aluminium Clad Steel Conductors (SC/AC) - Metric & Imperial ..................................... 22
A-9: All Aluminium Alloy Conductors - 1120 (AAAC/1120) Metric & 6201A (AAAC/6201) - Metric . 23
Appendix B: Pole Design Data .............................................................................. 24
B-1: Distribution Poles Data ..................................................................................................... 24
B-2: Transformer Poles Data .................................................................................................... 25
B-3: Distribution Poles Construction Details ............................................................................ 26
B-4: Transformer Details........................................................................................................... 27
B-5: Transformer Details - Continued....................................................................................... 28
B-6: “WB” Sub-Transmission Poles (Design Strength & Supply Item Numbers) ...................... 29
B-7: “WB” Sub-Transmission Poles (Design Strength & Supply Item Numbers) - Continued .. 30
B-8: “WB” Sub-Transmission Poles (Design Strength & Supply Item Numbers) - Continued .. 31
TS-107
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10. INSULATORS ................................................................................................. 12
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
1.
PURPOSE ...................................................................................................... 32
2.
SCOPE........................................................................................................... 32
3.
REFERENCES ................................................................................................. 32
4.
DEFINITIONS................................................................................................. 32
5.
RESPONSIBILITIES ......................................................................................... 32
6.
DIRECTIVE .................................................................................................... 32
APPENDIX D: Network Directive-ND J4-Construction of New Power Lines ............ 34
1.
PURPOSE ...................................................................................................... 34
2.
SCOPE........................................................................................................... 34
3.
REFERENCES ................................................................................................. 34
4.
DEFINITIONS................................................................................................. 34
5.
RESPONSIBILITIES ......................................................................................... 34
6.
DIRECTIVE .................................................................................................... 34
APPENDIX E: Conductor Measurement Sheet ....................................................... 37
Refer to a Separate Document for following TS-107- Appendix F & G................... 38
APPENDIX F: Atmospheric Corrosion Maps of South Australia ............................. 38
APPENDIX G: DPTI’s Maps of High Load Corridor .................................................. 38
TS-107
Authorised: Jehad Ali
Date of Publication: 07 December 2012
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APPENDIX C: Network Directive-ND P1 - Standard Location of Poles .................... 32
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
PURPOSE
The purpose of this Technical Standard is to define the design requirements of new lines in the SA
Power Networks overhead distribution network. The designs must meet all appropriate
regulations, guidelines and standards.
2.
SCOPE
This standard is applicable to overhead lines up to and including 66kV. All mechanical loads and
strengths used in this technical standard are based on working stress, not ultimate stress.
The general design requirements are specified in the General Standard TS-103.
3.
REFERENCES
Line design parameters for conductors and poles (structures) shall comply with the requirements
of the following:
4.

ESAA document “Guidelines for Design and Maintenance of Distribution and Transmission
Lines” Code HB C(b) 1 – 1999

The Electricity (General) Regulations 2012

The Electricity (Vegetation Clearance) Regulations 1996

SA Distribution Code
DEFINITIONS
NBFRA (Non Bushfire Risk Area) - as defined in the Regulations associated with the Electricity Act
1996 ie “the part of the state shown in the maps in schedule 3 as the non-bushfire risk area
excluding the areas shown in those maps as bushfire risk areas”.
Bare - Bare Conductor
ABC - Aerial Bundled Cable
CCT - Covered Conductor Thick (equivalent to SA Power Networks - Insulated Unscreened
Conductor, IUC)
LV (Low Voltage Mains) - electricity distribution mains of voltage less than 1000 Volts
HV (High Voltage Mains) - electricity distribution & transmission mains of voltage greater than
1000 Volts.
5.
LAND CATEGORY
In determining the wind loading on structures and cables, the appropriate land category shall be
selected for the conditions when applying wind loads in calculations.
The categories are:
LC1
Valleys, ridges, escarpments and suburban coastal regions or any line where
Increased security is required.
LC2
Normal rural conditions adjacent to crops, scattered trees or undulating ground
and rural coastal regions.
LC3
TS-107
Built up suburbs and townships, level wooded country.
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Date of Publication: 07 December 2012
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1.
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Calculation of wind load is based on a nominal working wind speed of 41m/s. For the permissible
method the wind load on overhead conductors, cables and poles are outlined in table 1:
Table - 1
Conductor/pole heights less than 11m
Conductor/pole heights more than 11m, but
less than 20m
For conductor heights less than 20m
Poles (steel edge)
Poles (concrete face)
Poles (steel edge)
Poles (concrete face)
Conductors (all)
Broad Band Cable
LAND CATEGORY
LC 1 LC 2 LC 3
1500 1200 800
2000 1500 800
1500 1200 800
2200 1800 1300
650 500 400
650 500 400
Where span length exceeds 150m, a span reduction factor (SRF) shall be applied. This must be
determined in accordance with HB C(b)1.
6.
POLES
6.1
General
Poles shall be selected such that the static (permanent) and dynamic (wind) load combination is
within safe limits.
The Stobie Pole consists of two rolled steel sections tapered from a closed spacing at the top to a
maximum spacing just below the top of the footing and reducing to a minimum spacing at the
bottom. The space between the sections is filled with concrete and the steel sections are tied
together through concrete with bolts spaced at suitable intervals.
The steel sections are considered to carry the full bending and compressive loads. The concrete
and bolts provide restraint against buckling of the steel section under compressive load. The bolts
also serve to transmit shear loads from the steel to the concrete.
6.2
Design Information
Strength in the strong direction is limited to a maximum of 4.5 times the weak direction strength.
Wind forces shall be selected accordingly to the worst terrain category likely during the design life
of the pole. If the wind load exceeds the weak direction strength by more than 50% then these
poles shall be temporarily guyed if the conductors are not strung.
Steel sections used are current production structural shapes to AS3678 and the steel rolled to
AS3679 - Grade 250 (Corresponding to 250Mpa ultimate yield stress).
Designations are: Tapered Flange Beams (TFB)
Universal Beams (UB)
Universal Columns (UC)
Top of footing level is nominally 150mm below ground level. In built up areas and in underground
work, the footing level may be 300mm below ground level.
6.3
Pole Selection
Poles are commonly described by the duty they perform. They can be termed line, angle, deadend, brace and transformer poles. Each individual pole must be examined in relation to its duty to
determine that a pole of adequate strength in strong and weak directions is used without the use
of guy wires.
TS-107
Authorised: Jehad Ali
Date of Publication: 07 December 2012
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All wind loads in Pa, working load
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
6.4
Loading Parameters on Poles
In addition to the above, the combined loading (K) of the pole should not exceed the factor given
in the table below.
The combination loading (K) is expressed as:
K
Where,
=
+
fs = applied load in strong direction
Fs = pole’s design strength in strong direction
fw = applied load in weak direction
Fw = pole’s design strength in weak direction
K Factors shall be selected from the following table-2.
Table - 2
Condition
Sustained load conditions, without wind
Maintenance or erection condition (allow 20% of maximum wind loadings)
K Factor
1.0
1.0
Short Duration Load conditions
1.
All poles 1 deg C with no wind
1.1
At 15 deg C plus wind
2.
Line or angle pole
1.0
3.
Dead-end pole (Temporary or permanent)
1.5
Where conductors provide constraint for a “dead-end” pole, ie at tee-off positions, the wind on
the pole concrete face and ½ tee-off conductor span may be reduced by up to 50% (depending on
the level of constraint) when calculating fw. Strengths of commonly used poles are listed in
Appendix B.
6.5
Longitudinal Wind
The assessment of the pole strength for wind blowing along the line is a difficult assessment and
generally beyond the scope of a basic design process. The significance of the along line wind will
depend on the location of the pole, the size of the pole and along line stiffness of the poles and
conductor. Many Stobie poles will not be self-supporting and will require the interaction with the
conductor to be structurally adequate.
Experience gained on transmission lines built throughout South Australia over a 50 year period
has demonstrated good performance for wind along the line using the standard methods of
design provided the crossarms and extension pieces are capable of resisting some basic
longitudinal loads generated by wind on the pole. However, this does not guarantee that the
same level of security has been achieved in the transverse and longitudinal direction for all poles.
As a minimum, it is recommended that for poles over 12 m total length where the wind on the
pole exceeds the capacity, a longitudinal load equivalent to 50% of the published SA Power
Networks load (working) on the pole is a minimum design load to be resisted by any component
connecting the pole to the conductors.
TS-107
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Date of Publication: 07 December 2012
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The design loadings reflected to the pole top in both strong and weak direction, should not
exceed the strength of the pole in either direction.
This load should be shared between each of the conductors. This along line load is not required
to be applied to the pole to determine adequacy in the direction along the line. For poles where
the conductor does not deviate, the pole capacity need only be checked against strength in the
transverse (strong) direction provided the ratio of strong to weak strength does not exceed 4.5 to
1.
The designer should give individual consideration to every pole and make some assessment on
the effect of wind in the direction along the line and how the pole is supported. Use of a previous
successful standard pole/conductor/crossarm/span length arrangement is considered a
reasonable assessment criterion for a basic line design. SA Power Networks may request that the
design is given a more sophisticated assessment by an independent designer.
6.6
Standard Location of Poles
Poles shall be located in positions which meet the requirements of Network Directive ND-P1
(re-printed in Appendix C)
7.
FOOTINGS
7.1
General
Poles shall be selected such that they can withstand loads without the assistance of guy wires.
The footing selection shall also be based on the correct assessment of the soil type.
7.2
Soil Types
Soils are grouped into three classes, A, B, and C as follows;
Class A
Gravel, compacted sand and rock soils not subject to large variations in volume with
moisture content, which offer appreciable resistance to boring and which remain
stable after boring.
Note: If the excavation is in rock, the hole should be just large enough to take the
pole at the recommended depth, and no reinforcement is necessary in the concrete.
7.3
Class B
Soils subject to large variations in volume with changing moisture content. Soils
which offer little cohesion, ie clay.
Class C
Low bearing soil. Requires caisson to support sides during excavation. Examples are
swamps, saturated soil and drift sands.
Footing Types
The footing type shall be selected from the SA Power Networks Construction Manual (Drawing E1800 series). Alternative footing arrangements may be used if certified by an appropriately
qualified civil engineer.
The types are:
1. Full strength
a. In Situ
b. Two Block
c. Cylindrical
d. Deep Type
2. Unformed Footings
The “Unformed” footing is acceptable where it can be certified by an appropriately qualified
civil engineer that loads on the pole will not exceed the strength of the pole and cause
movement.
An unformed footing may be used when :
a. a pole is not to be loaded at more than 50% of its strong direction strength, or
b. exceed half the design factor, ie 1.5 for terminal pole equates to 0.75.
An unformed footing may NOT be used when for a terminal pole.
TS-107
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
7.4
Materials
A reinforcing cage must be used for all transmission poles.
7.5
Formers
Formers shall be used for cored footings. Formers are numbered on size order from 0 to U5,
where 0 is the smallest. Refer to SA Power Networks WC series drawings for former dimensions.
7.6
Footing Orientation
All pole footings shall be orientated correctly in relation to the centre line of the mains, and shall
be positioned so that the pole will have the direction of the resultant forces acting along the
strong direction of the pole.
8.
CONDUCTORS
8.1
Definitions for Conductor Tensions
Sustained Load means the tension in the conductor and applied to the pole at a temperature
which is the mean of the winter season. This load is considered to be applied with no wind.
Table - 3
Zone 1 (South East)
Zone 2 (Central - Metro Areas)
Zone 3 (Northern)
Winter Mean Temperature
(Sustained Loads)
9 deg C
11 deg C
14 deg C
ST
T9
T 11
T 14
Everyday Load means the tension in the conductor at a temperature which is the mean of the
twelve month period. This Load is considered to be applied with no wind.
Table - 4
Zone 1 (South East)
Zone 2 (Central - Metro Areas)
Zone 3 (Northern)
Yearly Mean Temperature
(Everyday Loads)
13 deg C
16 deg C
20 deg C
EDT
T 13
T 16
T 20
Short Duration Load means the tension in the conductor and applied to the pole in the most
severe of the following conditions:
a. A conductor temperature equal to the average minimum winter temperature in still air
conditions (+ 1 deg C), or
b. A conductor temperature of +15 deg C with the maximum wind pressure on the projected
area of the conductor.
Minimum Sag occurs in the conductor at a temperature of 1 deg C in still air.
Maximum Sag occurs in the conductor at a temperature of:
50°C
-
11kV radial lines in rural areas only
80°C
-
11kV backbone feeder sections, 33kV in rural and metropolitan areas.
100°C -
TS-107
all 66kV lines, unless otherwise specified.
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Concrete for footings shall have a minimum compressive strength of 12 MPa at 7 days and
20 MPa at 28 days.
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
General
Vibration induced into the line shall be limited by careful selection of a tension at which the
conductor operates for the majority of its design life to ensure that the fatigue endurance limit of
the conductor wires is not reached.
8.3
Tension
The design conductor tension under the everyday load condition is that the horizontal tension
shall be no greater than the percentage of its calculated breaking load as derived from HB C(b)1.
Under the short duration load, the tangential tension in the conductor should not exceed 50% of
its calculated breaking load.
It must be stressed that this is a maximum tension which should be used to avoid damage to the
conductor over its expected service life. Lesser tensions may be used accordingly to pole
capacities or other considerations. Design constants for bare conductors are contained in
Appendix A
8.4
Side Swing
All designs must include a check to ensure that the conductor will not swing, under the influence
of wind, outside the requirements of the Electricity Act and Regulations. This design shall be
checked at the conditions stated in clause 2 and 3, eg for rural application in terrain category 2,
- T50 + 500pa wind.
8.5
Measurements of As-Built Condition
SA Power Networks’ Compliance Inspector shall have at all reasonable times access to the work
site, and shall have the power at all reasonable times, to inspect, examine, and test materials and
workmanship of the works during its manufacture or installation.
Measurement Sheets are to be completed by the Contractor throughout the progress of the
works. The Measurement Sheets shall be submitted with the Certificate of Practical Completion.
Measurement Sheets shall be in accordance with Appendix E. Where tests are performed i.e.
earth stake resistance readings, they shall be recorded in accordance with the Testing Standard
(TS 105) and submitted with the Certificate of Practical Completion.
9.
POLE TOP CONSTRUCTIONS
9.1
Pole top Assemblies
Pole top assemblies shall be selected and constructed in accordance with the relevant E-Drawings.
Only arrangements including combination arrangements illustrated in the E-Drawings are
acceptable.
9.2
Line Hardware
Table - 5
Item
11kV, LV
33kV
None
None
Minimum failing load
Conductor protection
Vibration dampers
Warning markers
TS-107
66kV
70kN per string as
per AS1154
Armour grip
suspension style
clamps to be used
at all post and
suspension
positions.
As per HB C(b)1
Aircraft warning markers to be installed on river crossings
and adjacent spans and as otherwise directed by AS3891.
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8.2
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
9.3
Network Directive ND J4
9.4
Bushfire and Non-Bushfire Risk Areas
The Network Directive, ND J4, specifies the construction requirements for Non-Bushfire Risk Areas
(NBFRA), Bushfire Risk Areas (BFRA) and High Bushfire Risk Areas (HBFRA). The following table
reiterates and expands on these requirements for 11 kV applications.
Table - 6
APPLICATION OF 11 kV OVERHEAD CONSTRUCTION TYPES *
NBFRA’s of Adelaide
Rural Backbones &
Rural Spurs
Metro Area
Feeder Ties
Standard Construction
Open wire
Open wire
Open wire
Alternative Construction
CCT (IUC)
CCT (IUC)
ABC or CCT (IUC)
* Table to be read in conjunction with Network Directive ND J4. Refer to Section 4 of this standard
for definitions.
9.5
Corrosion Zones and High Pollution Zones
Standards for 11, 33 & 66 kV constructions in corrosion zone areas and high pollution areas may
vary from those standards that generally apply. These variations of standards can be found
throughout the E drawings, eg E1017, HV Insulators, in the Overhead Construction E drawing
manual. Other construction drawings show alternatives for high corrosion/pollution.
The locations of the States’ corrosion zones are shown in Appendix F, the ‘Atmospheric Corrosion
Map of South Australia’. Note, the areas defined as ‘Very Severe Zones’ are regarded as the SA
Power Networks Corrosion Zone Areas.
The pollution zones of the State are the same as the corrosion zones, plus, lines constructed near
the coast* and any area subject to heavy atmospheric contamination. This map is intended to
illustrate general areas that may be prone to corrosion or pollutants. Where additional areas are
known to be corrosive or have high pollution due to local conditions, appropriate construction
standards must be specified. All designs of overhead constructions for corrosion or high pollution
zones must specify the appropriate standards.
* The depth of the pollution zone from the coast varies (refer to the E drawings), but the
minimum depth is 1 km.
9.6
High Load Corridors
New overhead road crossings (including services) must be erected so as not to compromise
existing clearances along high load corridors. Refer to the Transport SA maps in Appendix G for
the location of ‘Principle Routes for Over dimensional Loads’ and contact the High Load Officer,
George Hudson, for further details.
10.
INSULATORS
In all cases, SA Power Networks Standard insulators are to be used.
10.1
Suspension
Table - 7
TS-107
Type
Cap and pin Standard profile
Minimum strength
refer line hardware
Corona Ring
No
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All new power lines constructed must conform to the Network Directive, ND J4: ‘Construction of
New Power Lines’. A copy of ND J4 can be found in Appendix D.
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
10.2
Tension
10.3
Type
Cap and pin Standard profile
Minimum strength
refer line hardware
Corona Ring
No
Post (66kV only)
Table - 9
10.4
Type
Line Post AS Clamp top,
Material
Aerodynamic profile
Minimum leakage
distance
1780mm (2080mm for large conductors &
heavy spans)
Minimum strength
12.5kN vertical mount, 19kN horizontal mount
Corona Ring
No
Pin (11kV)
Table - 10
Type
Line Pin,
Material
Aerodynamic profile
Minimum leakage
distance
mm (mm for large conductors & heavy spans)
Minimum strength
kN vertical mount, kN horizontal mount
11.
ELECTRICAL REQUIREMENTS
11.1
Rated Voltage
The maximum continuous rated voltage shall be:
Table - 11
TS-107
11kV lines
11kV + 10 % = 12kV
33kV lines
33kV + 10 % = 36kV
66kV lines
66kV + 10% = 72.6kV
Authorised: Jehad Ali
Date of Publication: 07 December 2012
Page 13 of 38
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Table - 8
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
11.2
Lightning Withstand Voltage
Table - 12
11kV lines
95kV
33kV lines
170kV
66kV lines
325kV
The wave shape for switching impulses is 250/2500 microseconds.
11.3
I2t Rating
Table - 13
Max 20kA for 1 second (400M A2.sec),
11kV lines
11.4
Average 8kA for 1 second (64M A2.sec)
33kV lines
Maximum fault current at the maximum backup
protection clearing times, will be advised, when
required
66kV lines
Maximum fault current at the maximum backup
protection clearing times will be advised, when
required.
Electrical Clearances
The following minimum clearances shall be maintained to supporting structures, under all
conditions:
Table - 14
Clearance
11kV
33kV
66kV
Phase to Earth
255mm
350mm
690mm
Phase to Phase
255mm
400mm
800mm
The minimum clearances defined in the Electricity (General) Regulations 1997 and associated
schedules shall be maintained, under all conditions.
12.
OTHER CONSIDERATIONS
12.1
Ferro-resonance
On 33kV be aware of the potential for Ferro-resonance and consider the availability of
appropriate three phase switching devices to isolate transformers that are supplied by short
lengths of 33kV cable.
TS-107
Authorised: Jehad Ali
Date of Publication: 07 December 2012
Page 14 of 38
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WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is located on the Intranet/Internet
The lightning impulse withstands voltage under full wave dry conditions using the standard 1.2/50
microsecond impulse shall be:
Appendix A: Conductor Design Constants
A-1: All Aluminium Conductors (AAC) - Metric
1
Equiv.
Alum
Area
mm2
41.10
76.30
122.00
180.00
301.00
495.00
2
Stranding
and
Wire
Diameter
mm
7/2.75
7/3.75
7/4.75
19/3.50
37/3.25
61/3.25
ALL ALUMINIUM CONDUCTOR (AAC)
(Metric)
6
7
8
9
3
4
5
UTS
Resistance
at 20°C
Total
Diameter
Cross Sectional
Area
(A)
kN
6.72
11.80
18.90
28.70
48.20
75.20
Ohms/km
0.6890
0.3700
0.2320
0.1570
0.0940
0.0572
mm
8.3
11.3
14.3
17.5
22.8
29.3
mm2
41.6
77.3
124.0
182.8
307.0
506.1
Mass
and C2 =
kg/m
W
W100
W500
0.113 1.099 1.377 4.293
0.211 2.080 2.367 6.021
0.339 3.335 3.629 7.890
0.503 4.925 5.226 10.041
0.845 8.289 8.594 14.055
1.400 18.247 18.480 23.400
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
11
Modulus
of Elasticity
(E)
Conductor Load
N/m
Notes:
1. Conductor Loads in Column 9 and 10 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Values taken from AS1531 1991, Table 3.2
3. C1 =
10
kPa
59 x 106
59 x 106
59 x 106
56 x 106
56 x 106
54 x 106
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
12
Coefficient
of
Expansion
(a)
per °C x 10-6
23.0
23.0
23.0
23.0
23.0
23.0
13
14
Constants
C1
319.7
436.0
552.1
650.9
846.2
1067.0
Date of Publication: 07 December 2012
Page 15 of 38
C2
56.4
104.9
168.3
233.9
395.3
628.5
A-2: All Aluminium Conductors (AAC) - Imperial
1
Equiv
Copper
Area
in2
.014
.024
.037
.07
.117
.183
.28
.497
.57
2
Equiv
Alum
Area
mm2
14.34
26.50
38.75
72.60
121.13
191.21
292.24
518.71
595.25
3
Stranding
and Wire
Diameter
inches
7/.064
7/.087
7/.1052
7/.144
7/.186
37/.102
37/.1261
37/.168
61/.1403
4
UTS
kN
2.62
4.76
6.63
11.79
18.86
31.58
45.59
77.18
91.63
ALL ALUMINIUM CONDUCTOR (AAC)
(Imperial)
5
6
7
8
Cross
Resistance
Total
Sectional
Mass
Diameter
at 20°C
Area (A)
Ohms/km
mm
mm2
kg/m
1.9685
4.8
14.5
.0399
1.0641
6.6
26.8
.0733
0.7273
8.0
39.1
.1073
0.3882
11.0
73.5
.2008
0.2329
14.2
122.7
.3362
0.1487
18.1
195.0
.5385
0.0970
22.4
297.7
.8271
0.0546
29.9
529.2
1.4624
0.0477
32.0
605.8
1.6855
9
10
Conductor Load
N/m
W
0.391
0.719
1.052
1.970
3.298
5.253
8.114
14.346
16.535
W100
0.625
0.977
1.323
2.254
3.589
5.557
8.418
14.653
16.843
Notes:
1. Conductor Loads in Column 10 and 11 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Design figures in column 4 to 13 are direct conversions for values shown on SA Power Networks drawing P-30750
3. C1 =
and C2 =
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
11
WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is lo
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
12
13
Constants
W500
2.470
3.392
4.149
5.829
7.817
10.495
13.842
20.709
23.037
C1
191.9
261.5
314.3
430.3
566.8
691.8
852.1
1136.8
1206.4
C2
20.3
37.6
54.8
102.9
171.2
263.4
402.7
714.2
807.1
Date of Publication: 07 December 2012
Page 16 of 38
A-3: All Aluminium Conductors (ACSR/GZ & ACSR/AZ) - Metric
1
Equiv
Alum
Area
mm2
35.2
65.2
105.0
144.0
244.0
373.0
508.0
2
3
Stranding and
Wire Diameter
mm
Alum
6/2.75
6/3.75
6/4.75
30/2.5
30/3.25
54/3.0
54/3.5
Steel
1 /2.75
1/3.75
7/1.6
7/2.5
7/3.25
7/3.0
7/3.5
4
UTS
kN
12.5
21.5
31.9
61.6
104.0
115.0
153.0
ALL ALUMINIUM CONDUCTOR - GALVANISED STEEL REINFORCED (ACSR/GZ)
ALL ALUMINIUM CONDUCTOR - ALUMINISED STEEL REINFORCED (ACSR/AZ)
(Metric)
5
6
7
8
9
10
11
12
Resistance
Total
Cross
Mass
Conductor Load
Modulus
Diameter Sectional
N/m
of
at 20°C
Area (A)
Elasticity
(E)
Ohms/km
mm
mm2
kg/m
W
W100
W500
kPa
.8050
8.25
41.6
0.144
1.413
1.636
4.360
79 x 106
.4330
11.3
77.3
0.268
2.629
2.861
6.232
79 x 106
.2710
14.3
120.4
0.404
3.963
4.213
8.175
76 x 106
.1960
17.5
181.6
0.675
6.622
6.849 10.973 80 x 106
.1160
22.75
306.9
1.141 11.193 11.421 15.959 80 x 106
.0758
27.0
431.2
1.440 14.126 14.381 19.540 68 x 106
.0557
31.5
586.9
1.960 19.228 19.484 24.855 68 x 106
Notes:
1. Conductor Loads in Column 10 and 11 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Values taken from AS1220, Part 1 and 2. 1973 except for conductor marked *
3. C1 =
and C2 =
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
13
Coefficient
of Expansion
(a)
per °C x 10-6
19.3
19.3
19.9
18.4
18.4
19.9
19.9
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
14
15
Constants
C1
370.0
504.4
617.5
778.0
1011.4
1105.3
1289.5
C2
63.4
117.9
182.1
267.3
451.8
583.5
794.2
Date of Publication: 07 December 2012
Page 17 of 38
A-4: All Aluminium Conductors (ACSR/GZ & ACSR/AZ) - Imperial
1
Equiv
Copper
Area
in2
.03
.06
.10
.125
.15
.225
.35
.5
2
Equiv
Alum
Area
mm2
33.14
62.10
103.60
128.58
154.67
236.40
372.35
516.92
ALL ALUMINIUM CONDUCTOR - GALVANISED STEEL REINFORCED (ACSR/GZ)
ALL ALUMINIUM CONDUCTOR - ALUMINISED STEEL REINFORCED (ACSR/AZ)
(Imperial)
3
4
5
6
7
8
9
10
11
12
Stranding and Wire
Cross
Conductor Load
Resistanc
Total
Diameter
UTS
Sectional
Mass
N/m
e at 20°C Diameter
mm
Area
Alum
Steel
kN
Ohms/km
mm
mm2
kg/m
W
W100
W500
6/.1052
1/.1052
11.83
0.5808
8.0
39.4
0.1355
1.330
1.553
4.228
6/.144
1/.144
21.62
0.4538
11.0
7305
0.2544
2.496
2.726
6.027
6/.186
7/.062
32.47
0.2723
14.2
118.7
0.3957
3.882
4.132
8.080
30/.093
7/.093
56.58
0.2198
16.5
161.9
0.6040
5.925
6.151
10.172
30/.102
7/.102
67.48
0.1826
18.1
194.8
0.7275
7.136
7.362
11.539
30/1261
7/.1261
101.51
0.1203
22.4
298.1
1.1113
10.902
11.130
15.640
54/.118
7/.118
116.54
0.0760
27.0
430.3
1.4430
14.156
14.410
19.553
54/.139
7/.139
159.78
0.0548
31.8
596.8
2.0009
19.629
19.884
25.253
Notes:
1. Conductor Loads in Column 11 and 12 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Design figures in column 5 to 14 are direct conversions for values shown on SA Power Networks drawing P-30750
3. C1 =
and C2 =
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is lo
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
13
14
Constants
C1
360.7
493.5
596.9
723.4
793.0
980.7
1098.8
1292.9
C2
59.1
111.3
167.3
221.8
266.6
408.3
560.5
777.5
Date of Publication: 07 December 2012
Page 18 of 38
A-5: All Galvanised Steel Conductors (SC/GZ) - Metric
1
2
Equiv
Alum
Area
mm2
2.95
2.32
6.26
9.79
GALVANISED STEEL CONDUCTOR (SC/GZ)
(Metric)
6
7
8
9
3
4
5
Stranding
and Wire
Diameter
UTS
Resistance
at 20°C
Total
Diameter
Cross
Sectional
Area (A)
Mass
mm
3/2.75
7/1.60
19/1.60
19/2.00
kN
22.2
17.5
47.6
74.4
Ohms/km
9.7
12.4
4.5
2.9
mm
5.93
4.80
8.00
10.00
mm2
17.8
14.1
38.2
59.7
kg/m
0.139
0.113
0.309
0.483
Conductor Load
N/m
W
1.364
1.109
3.031
4.738
W100
1.487
1.208
3.135
4.842
Notes:
1. Conductor Loads in Column 9 and 10 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Values taken from AS1220, Part 1 1973 except for conductor marked *
3. C1 =
and C2 =
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
10
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
W500
3.264
2.644
5.019
6.888
11
Modulus
of
Elasticity
(E)
kPa
193 x 106
193 x 106
193 x 106
193 x 106
12
Coefficient of
Expansion
(a)
per °C x 10-6
11.5
11.5
11.5
11.5
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13
14
Constants
C1
378.6
336.4
554.2
692.8
C2
39.6
31.2
84.8
132.5
Date of Publication: 07 December 2012
Page 19 of 38
A-6: All Galvanised Steel Conductors (SC/GZ) - Imperial
1
Equiv
Copper
Area
in2
0.0026
0.0090
0.0096
2
Equiv
Alum
Area
mm2
2.72
9.57
10.10
3
Stranding
and Wire
Diameter
inches
3/.104
7/.128
19/.080
4
UTS
kN
20.51
72.51
76.95
GALVANISED STEEL CONDUCTOR (SC/GZ)
(Imperial)
5
6
7
8
Cross
Resistance
Total
Sectional
Mass
Diameter
at 20°C
Area (A)
Ohms/km
mm
mm2
kg/m
10.31
5.7
16.5
0.1294
3.28
10.0
58.1
0.4880
3.06
10.2
61.6
0.4954
9
10
Conductor Load
N/m
W
1.270
4.787
4.860
W100
1.392
4.885
4.965
Notes:
1. Conductor Loads in Column 10 and 11 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Design figures in column 4 to 13 are direct conversions for values shown on SA Power Networks drawing P-30750
3. C1 =
and C2 =
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
11
W500
3.115
6.834
7.030
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12
13
Constants
C1
362.8
685.5
689.7
C2
36.4
128.1
131.3
Date of Publication: 07 December 2012
Page 20 of 38
A-7: Hard Drawn Copper Conductors - Imperial
1
Equiv
Copper
Area
in2
.0125
.0225
.035
.06
.10
.15
.20
.25
.25
.30
.30
.50
.60
2
Equiv
Alum
Area
mm2
3
Stranding
and Wire
Diameter
inches
7/.048
7/.064
7/.080
7/.104
7/.136
19/.101
19/.116
37/.093
19/.131
19/.144
37/.103
19/.185
37/.144
4
UTS
kN
3.44
6.09
9.43
15.75
26.11
39.59
51.60
64.05
64.94
77.40
80.51
123.22
150.35
HARD DRAWN COPPER CONDUCTOR
(Imperial)
5
6
7
8
Cross
Resistance
Total
Sectional
Mass
Diameter
at 20°C
Area (A)
Ohms/km
mm
mm2
kg/m
2.1905
3.7
8.1
0.0759
1.2314
4.9
14.4
0.1302
0.7874
6.1
22.5
0.2054
0.4659
7.9
38.1
0.3438
0.2723
10.4
64.7
0.5878
0.1783
12.8
97.0
0.8899
0.1389
14.7
127.9
1.1667
0.1105
16.5
160.3
1.4673
0.1086
16.6
161.3
1.4867
0.0899
18.3
193.5
1.7977
0.0902
18.5
196.7
1.8349
0.0544
23.5
322.6
2.9614
0.0453
25.6
387.1
3.5031
9
10
Conductor Load
N/m
W
0.744
1.277
2.014
3.371
5.765
8.727
11.442
14.390
14.579
17.629
17.994
29.042
34.354
W100
0.829
1.366
2.104
3.462
5.857
8.820
11.536
14.484
14.673
17.723
18.088
29.136
34.449
Notes:
1. Conductor Loads in Column 10 and 11 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Design figures in column 4 to 13 are direct conversions for values shown on SA Power Networks drawing P-30750
3. C1 =
and C2 =
11
W500
1.974
2.753
3.653
5.202
7.751
10.830
13.608
16.596
16.786
19.860
20.231
31.328
36.662
WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is lo
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
12
13
Constants
C1
199.9
265.7
333.2
434.5
567.3
700.2
797.2
890.0
898.5
987.1
984.9
1267.6
1377.2
C2
16.3
28.7
45.0
76.1
130.5
198.6
257.0
321.1
327.5
395.5
393.9
654.2
774.3
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
Date of Publication: 07 December 2012
Page 21 of 38
A-8: All Aluminium Clad Steel Conductors (SC/AC) - Metric & Imperial
1
2
Equiv
Alum
Area
Stranding
and Wire
Diameter
UTS
Cross
Resistance
Total
Sectional
Diameter
at 20°C
Area (A)
mm2
5.91
mm
3/2.75
kN
22.7
Ohms/km
4.8
1
Equiv
Copper
Area
in2
.005
.012
2
Equiv
Alum
Area
mm2
5.24
12.16
3
4
5
ALUMINIUM CLAD STEEL CONDUCTOR (SC/AC)
(Metric)
6
7
8
9
mm
5.93
Mass
10
Conductor Load
N/m
mm2
kg/m
W
W100
17.82
0.118
1.157
1.3
Values taken from AS1222, Part 2 - 1973
W500
3.183
11
Modulus
of
Elasticity
(E)
kPa
162 x 106
and C2 =
Coefficient
of Expansion
(a)
per °C x 10-6
12.9
ALUMINIUM CLAD STEEL CONDUCTOR (SC/AC)
(Imperial)
3
4
5
6
7
8
9
10
11
Stranding
Cross
Resistance
Total
Conductor Load
and Wire
UTS
Sectional
Mass
Diameter
N/m
at 20°C
Diameter
Area (A)
inches
kN
Ohms/km
mm
mm2
kg/m
W
W100
W500
3/.1019
20.16
5.42
5.59
15.69
0.104
1.022
1.161
2.975
7/.1019
44.57
2.33
7.77
36.44
0.246
2.407
2.529
4.570
Design figures in column 4 to 13 are direct conversions for values shown on SA Power Networks drawing P-30736
Notes:
1. Conductor Loads in Column 10 and 11 are the result of conductor load + wind load on projected area.
W100 for 100 pascal wind and W500 for 500 pascal wind
2. Design figures in column 4 to 13 are direct conversions for values shown on SA Power Networks drawing P-30750
3. C1 =
12
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13
14
Constants
C1
346.8
12
C2
37.2
13
Constants
C1
325.4
496.0
C2
32.8
76.2
; are conductor constants used in temperature change calculations.
Where, E = Final modulus of Elasticity, A = Cross sectional area and a = Coefficient of Linear Expansion
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Date of Publication: 07 December 2012
Page 22 of 38
A-9: All Aluminium Alloy Conductors - 1120 (AAAC/1120) Metric & 6201A (AAAC/6201) - Metric
3
4
ALL ALUMINIUM ALLOY 1120 (AAAC / 1120) - (Metric)
5
6
7
8
9
10
1
2
Equiv
Alum
Area
Stranding
and Wire
Diameter
UTS
(CBL)
Cross
Resistance Conductor
Sectional
Diameter
at 20°C
Area (A)
mm2
39.7
73.7
118
mm
7/2.75
7/3.75
7/4.75
kN
9.91
17.6
27.1
Ohms/km
0.713
0.383
0.239
mm
8.25
11.3
14.3
mm2
41.58
77.28
124.0
Conductor Load
N/m
Mass
kg/m
0.113
0.211
0.339
W
1.099
2.080
3.335
W100
1.377
2.367
3.629
W500
4.290
6.021
7.890
11
Final
Modulus
of
Elasticity
(E)
kPa
59 x 106
59 x 106
59 x 106
12
Coefficient
of Linear
Expansion
(a)
per °C
23 x 10-6
23 x 10-6
23 x 10-6
ALL ALUMINIUM ALLOY 6201A (AAAC / 6201) - (Metric)
1
Equiv
Alum
Area
2
Stranding
and Wire
Diameter
3
UTS
(CBL)
4
5
6
Resistance Conductor
Cross
Diameter Sectional
at 20°C
Area
(A)
7
Mass
8
9
Conductor Load
N/m
10
11
Final
Modulus
of
Elasticity
(E)
kPa
59 x 106
59 x 106
59 x 106
12
Coefficient
of Linear
Expansion
(a)
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
13
14
Constants
C1
319.7
436.0
552.1
C2
56.4
104.9
168.3
13
14
Constants
mm2
mm
kN
Ohms/km
mm
mm2
kg/m
W
W100
W500
C1
C2
per °C
-6
35.4
7/2.75
11.6
0.799
8.25
41.58
0.113
1.099
1.377
4.290
23 x 10
319.7
56.4
-6
65.8
7/3.75
21.7
0.430
11.3
77.28
0.211
2.080
2.367
6.021
23 x 10
436.0
104.9
-6
106
7/4.75
34.8
0.268
14.3
124.0
0.339
3.335
3.629
7.890
23 x 10
552.1
168.3
Notes:
1. Values taken from AS1531 - 1991, Table 3.2
2. Conductor Loads in Column 9 and 10 are the result of conductor load + wind load on projected area. W100 for 100 pascal wind and W500 for 500 pascal wind
3. C1 =
and C2 =
; are conductor constants used in temperature change calculations. Where, E = Final modulus of Elasticity, A = Cross sectional
area and a = Coefficient of Linear Expansion
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Date of Publication: 07 December 2012
Page 23 of 38
Appendix B: Pole Design Data
B-1: Distribution Poles Data
Pole Designation
Stock
Number
Pole
Size
Strength
In
Newtons
Lifting Details
Steel Section
Designation
mm-mm-kg/m
Bend
Position
from
Bottom
mm
Nominal
Ground
Line
From
Bottom
mm
Depth
of Pole
in
Footing
mm
535
797
1053
1600
1900
1900
Strong
Direction
Weak
Direction
TC1
1500
Pa
TC2
1200
Pa
TC3
800
Pa
TC1
2000
Pa
TC2
1500
Pa
TC3
800
Pa
9-100-288
9-125-308
9-155-318
4700
10500
14800
1300
3200
5400
560
670
830
450
540
660
300
360
440
1560
1760
1900
1170
1320
1430
630
710
760
100x45x7.2 TFB
125x65x13 TFB
150 UB 18.0
1450
1450
1450
Centre
of
Gravity
From
Bottom
mm
4169
4222
4240
11-100-325
3900
870
690
550
370
1950
1460
780
100x45x7.2 TFB
1550
5003
681
11-125-345T
8600
2070
860
690
460
2310
1740
930
125x65x13 TFB
1550
5132
11-155-355T
12150
3490
1060
850
570
2500
1870
1000
150 UB 18.0
1550
12-100-299
12-125-319T
3500
7700
14900
11000
17300
26000
7300
10600
15000
27000
31000
900
2300
4030
3800
5800
7550
2100
3500
5200
6850
12800
760
950
1180
1180
1330
1200
1050
1290
1460
1320
1680
610
760
940
940
1060
960
840
1040
1170
1060
1350
410
510
630
630
710
640
560
690
780
710
900
2170
2570
2770
2770
3210
4240
2920
3140
3480
4760
5500
1630
1930
2080
2080
2410
3180
2190
2360
2610
3570
4130
870
1030
1110
1110
1290
1700
1170
1260
1390
1910
2200
100x45x7.2 TFB
125x65x13 TFB
150 UB 18.0
150 UB 18.0
180 UB 22.2
150 UC 37
125x65x13 TFB
150 UB 18.0
180 UB 22.2
150 UC 37
200 UC 52
1550
1550
1550
1550
1550
1550
1550
1550
1550
1550
1750
Distribution Poles
WB 0905
WB 0910
WB 0915
WA
1105
WA
1110
WA
1115
WB 1205
WB 1210
WB 1214
WB 1215
WB 1220
WB 1227
WB 1310
WB 1315
WB 1320
WB 1327
WB 1330
Wind Force on Poles (Newtons)
R12-155-355
12-155-329T
12-179-417T
12-162-434
13-125-338
13-155-348T
13-179-396T
13-162-459T
13-206-405
Steel Face
Concrete Face
Distribution Pole Designation
9 - 100 - 288
where
9
is the overall length to the nearest metre
100 is steel section depth in millimetres
and
288 is the steel section centreline separation at the bend in metres
TS-107
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Total
Mass
of
Pole
kg
Steel
Former
Number
Std.
Extra
1450
1750
1750
0
1
1
1
2
2
1900
1750
0
1
1011
1900
1750
1
2
5158
1332
1900
1750
1
2
5474
5556
5419
5548
5504
5703
5966
5997
5925
6136
6318
731
1084
1548
1432
1949
2305
1213
1599
2056
2560
3364
1900
1900
1900
1900
2150
2150
1900
1900
2150
2150
2150
1750
1750
1750
1750
2000
2000
1750
1750
2000
2000
2000
0
1
1
1
3
3A
1
1
3
3A
U1
1
2
2
2
3A
U2
2
2
3A
U2
U3
Date of Publication: 07 December 2012
Page 24 of 38
B-2: Transformer Poles Data
Wind Pressures: Exposed Situations
Rectangular T/F
1200 Pa
Cylindrical T/F
750 Pa
Sheltered Situations Rectangular T/F
720 Pa
Cylindrical T/F
450 Pa
Wind Loadings on T/F as an Equivalent Force at the Top of Pole (Newtons)
(1) Strong Direction FT/F = X Y/h [h - (p - X/2)] x Wind Pressure
M
Z
X
Y
p
(1) Weak Direction FT/F = X Z/h [h - (p - X/2)] x Wind Pressure
W
h
Wind Loading on Pole as an Equivalent Force at Top of Pole
(1) Steel Face: PSF
(2) Concrete Face: PCF (refer to Table)
Transformer Loading as a Force at Top of Pole for Conductor Loadings etc
PT/F = W M x 9.81 / h
Conductor Tension Loading as an Equivalent Force at top of Pole
Strong Direction FSC
Weak Direction FWC
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Allowable Combined Loading on Pole
The combined loading on the pole in both directions calculated from the appropriate combination of the above loads must be within the limit set by the following
equation, where k = 1.0 for normal operating loading without wind, and 1.5 for full loading under maximum wind.
Fs’ + Fw’ = k
Fs Fw
h
M
p
W
X
Y
Height above Footing (mm)
T/F Cof G to Pole C/line (mm)
T/F load application point from pole top (mm)
T/F mass (kg)
T/F height (mm)
T/F breadth (mm)
Z
Fs
Fw
Fs’
Fw’
T/F Depth (mm)
Strong dir. Allowable Force (N)
Weak Dir. Allowable Force (N)
Strong Dir. S Applied Forces (N)
Weak Dir. S Applied Forces (N)
See table pages 26 & 27 for transformer details.
TS-107
Authorised: Jehad Ali
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Date of Publication: 07 December 2012
Page 25 of 38
B-3: Distribution Poles Construction Details
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Date of Publication: 07 December 2012
Page 26 of 38
B-4: Transformer Details
The figures below (which have been provided by Tyree) apply to Tyree Transformers supplied after 1995.
Capacity
Mass
Voltage
Description
Supply Item Number
Current Contract
kVA
kg
10
150
16
LA5116
155

Single Phase
11 kV
20
185
(11/7.6kV)
50
LA5119
335

50
LA5182
335

25
LA5316
265

30
345
50
410
63
LA5327
485

Three Phase
11 kV
(11/7.6kV)
100
LA5336
740

(Wilson T/F)
150
1100
200
LA5346
1220

200
1011348
1175

315
LA5356
1450

10
265
20
300
33 kV
Single Phase
25
LA6116
260

50
LA6117
400

25
LA6499
600

30
710
50
830
33 kV
Three Phase
63
LA6503
830

100
LA6504
1255

150
1555
200
LA6508
1725

10
LA0110
135

Single Phase
19 kV SWER
SWER Dist
25
1012328
200

11 / 19 kV
Single Phase SWER Isol
150
LA5196
1090

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Shape
Cylindrical
Cylindrical
Cylindrical
Cylindrical
Cylindrical
Rectangular
Cylindrical
Cylindrical
Rectangular
Rectangular
Rectangular
Rectangular
Rectangular
Rectangular
Cylindrical
Cylindrical
Cylindrical
Cylindrical
Rectangular
Cylindrical
Cylindrical
Rectangular
Rectangular
Rectangular
Rectangular
Cylindrical
Cylindrical
Rectangular
Height *
mm
900
840
900
1090
1040
1075
1250
1420
1175
1240
1400
1410
TBA
1290
950
950
1050
1070
1030
960
1060
1030
1225
1425
1425
840
840
1500
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Width *
mm
520
570
520
725
725
960
720
620
960
1180
1230
1210
TBA
1290
800
845
630
700
1210
1110
1110
1210
1145
1105
1185
570
570
970
Depth *
mm
510
580
510
710
710
580
610
640
630
950
750
905
TBA
945
1130
1020
960
1030
1200
1190
1150
1200
1250
1340
1320
950
1000
1230
Date of Publication: 07 December 2012
Page 27 of 38
B-5: Transformer Details - Continued
Voltage
Description
Capacity
kVA
Supply Item
Number
Current
Contract
Mass
kg
Shape
Single Phase
200
LA5197
1265
Rectangular

SWER Isol
33 / 19 kV
Single Phase
150
LA6196
1120
Rectangular

SWER Isol
200
LA6197
1270
Rectangular

* The dimensions quoted for the sizes of the transformers are overall dimensions, which include bushings, lifting lugs etc.
11 / 19 kV
TS-107
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Height *
mm
Width *
mm
Depth *
mm
1430
1070
1300
1400
1430
1040
1070
1250
1250
Date of Publication: 07 December 2012
Page 28 of 38
B-6: “WB” Sub-Transmission Poles (Design Strength & Supply Item Numbers)
Pole Drg
No.
WB1510
Supply
Item No.
1011246
WB1515
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6.60
Fw
(kN)
1.47
1011247
10.30
2.98
15-155x18-425
150UB18
15.0m
2
WB1520
1011248
12.90
4.30
15-179x22-440
180UB22
15.0m
3
WB1526
1011249
18.50
7.10
15-207x30-460
200UB30
15.0m
U1
WB1532
1011250
21.50
7.00
15-162x37-430
150UC37
15.0m
3A
WB1536
1011251
29.50
13.40
15-206x52-397
200UC52
15.0m
U1
WB1540
1011252
41.50
11.80
15-203x46-645
200UC46
15.0m
U4
WB1550
1011253
53.50
15.30
15-205x60-640
200UC60
15.0m
U4
WB1555
1011254
59.00
23.50
15-254x73-580
250UC73
15.0m
U4
WB1565
1011255
71.50
28.90
15-260x89-575
250UC89
15.0m
U4
WB1615
1011256
16.70*
4.80*
16.5-155x18-415 Compound Section
150UB18/14
16.5m
2
WB1640
1011465
30.90
10.60
16.5-203x46-535
200UC46
16.5m
U3
WB1645
1011466
38.00
12.00
16.5-206x52-585
200UC52
16.5m
5
WB1660
1011467
64.00
25.80
16.5-260x89-575
250UC89
16.5m
U4
WB1815
1011257
9.10
2.50
18-155x18-450 Compound Section
150UB18/14
18.0m
2
WB1820
1011258
11.60
3.63
18-179x22-465
180UB22
18.0m
3
WB1826
1011259
17.10
5.92
18-207x30-510
200UB30
18.0m
U1
WB1830
1011260
23.00
9.20
18-256x37-550Compound Section
250UB37/25
18.0m
U2
WB1840
1011261
31.00
10.50
18-203x46-500
200UC46
18.0m
U3
WB1845
1011262
34.50
10.80
18-206x52-585
200UC52
18.0m
5
WB1850
1011263
45.00
13.90
18-210x60-610 Compound Section
200UC60/46
18.0m
U4
Yes
WB1855
1011264
47.50
* = Ultimate Strength Values
19.00
18-254x73-580
250UC73
18.0m
U4
No
TS-107
Fs (kN)
Pole Designation
Steel Section
Overall Length
Former
15-125x13-415
125x65x13TFB
15.0m
1
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Final Design
Complete
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Date of Publication: 07 December 2012
Page 29 of 38
B-7: “WB” Sub-Transmission Poles (Design Strength & Supply Item Numbers) - Continued
Pole Drg
No.
WB1860
WB1862
Supply
Item No.
1011265
1011266
58.00
70.00
Fw
(kN)
23.30
23.30
WB2020
WB2025
WB2040
WB2045
WB2055
WB2060
WB2062
1011267
1011268
1011269
1011270
1011271
1011272
1011273
10.50
19.00
25.50
36.00
43.50
60.00
64.00
3.30
6.50
8.70
11.00
17.40
22.20
21.30
WB2070
1011274
84.00
34.10
WB2075
1011275
112.00
41.50
WB2120
WB2125
WB2130
WB2140
1011276
1011277
1011278
1011279
12.00
17.00
18.50
26.00
3.30
5.75
7.70
8.80
19.5-179x22-465
19.5-207x30-500 Compound Section
19.5-203x46-535
19.5-206x52-575 Compound Section
19.5-254x73-580
19.5-260x89-575 Compound Section
19.5-260x89-700 Compound Section
19.5-314x118-700 Compound
Section
19.5-320x137-700 Compound
Section
21-179x22-465 Compound Section
21-207x30-500
21-256x37-525 Compound Section
21-203x46-500
WB2150
WB2155
WB2160
WB2162
WB2170
WB2172
1011280
1011281
1011282
1011283
1011292
1011293
31.75
40.00
48.50
59.00
77.50
168.4*
9.75
16.00
19.60
19.60
31.30
63.3*
21-210x 60-508
21-254x73-580
21-260x89-575 Compound Section
21-260x89-700 Compound Section
21-315x118-700 Compound Section
21-321x137-700 Compound Section
TS-107
Fs (kN)
Pole Designation
Steel Section
Overall Length
Former
18-260x89-580 Compound Section
18-260x89-700 Compound Section
250UC89/73
250UC89/73
18.0m
18.0m
U4
U5
180UB22
200UB30/22
200UC46
200UC52/46
250UC73
250UC89/73
250UC89/73
19.5m
19.5m
19.5m
19.5m
19.5m
19.5m
19.5m
3
U1
U3
5
U4
U4
U5
310UC118/97
19.5m
U5
310UC137/97
19.5m
U5
180UB22/18
200UB30
250UB37/31
200UC46
21.0m
21.0m
21.0m
21.0m
3
U1
U2
U3
200UC60
250UC73
250UC89/73
250UC89/73
310UC118/97
310UC137/97
21.3m
21.0m
21.0m
21.0m
21.0m
21.0m
U3
U4
U4
U5
U5
U5
Authorised: Jehad Ali
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TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Final Design
Complete
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
No
Yes
Yes
Date of Publication: 07 December 2012
Page 30 of 38
B-8: “WB” Sub-Transmission Poles (Design Strength & Supply Item Numbers) - Continued
Pole Drg
No.
Supply
Item No.
Fs (kN)
Fw
(kN)
Pole Designation
Steel Section
Overall Length
Former
WB2325
1011294
12.40
4.60
22.5-207x30-475 Compound Section
200UBx10.5m
200UB30x12m
22.5m
U1
WB2326
1011295
13.00
4.50
22.5-162x37-400
150UC37
22.5m
2
WB2330
1011297
21.00
7.20
22.5-256x37-525 Compound Section
250UB37/31
22.5m
U2
WB2340
1011299
21.50
7.40
22.5-203x46-535
200UC46
22.5m
U3
WB2350
1011300
27.00
9.60
22.5-210x60-520 Compound Section
200UC60/46
22.5m
U3
WB2355
1011301
37.50
14.80
22.5-254x73-590
250UC73
22.5m
U4
WB2360
1011302
45.00
18.10
22.5-260x89-575 Compound Section
250UC89/73
22.5m
U4
WB2370
1011303
72.00
29.00
22.5-315x118-700 Compound
Section
310UC97x12m
310UC118x10.5m
22.5m
U5
WB2371
1010386
19.00
10.80
22.5-307x46-470
310UB46
22.5m
4
WB2375
1011304
84.10
33.50
U5
1011305
96.60
39.00
310UC97x10.5m
310UC137x12m
310UC118x12m
310UC158x10.5m
22.5m
WB2376
22.5-320x137-700 Compound
Section
22.5-327x158-700 Compound
Section
22.5m
U5
WB2430
1011306
15.90
6.60
24-256x37-525 Compound Section
250UB37/31
24.0m
U2
WB2440
1011307
20.00
6.90
24-203x46-535
200UC46
24.0m
U3
WB2625
1011308
10.80
4.00
25.5-207x30-475 Compound Section
200UB30/22
25.5m
U1
WB2630
1011309
14.90
6.00
25.5-256x37-525 Compound Section
250UB37/31
25.5m
U2
WB2641
1011537
13.00
6.00
26 - 203 x 46 - 400
200UC46
25.5
U1
WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is lo
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
Final Design
Complete
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
* = Ultimate Strength Values
TS-107
Authorised: Jehad Ali
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
Date of Publication: 07 December 2012
Page 31 of 38
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is located on the Intranet/Internet
APPENDIX E: Conductor Measurement Sheet
CONDUCTOR MEASUREMENT SHEET
Page ...... of......
Project Name
SA Power Networks Reference
Location
FEATURES TO BE MEASURED
Conductor tie-off tension
RESULT
REMARKS
Conductor Stringing tension
Conductor finished clearance from SA Power
Networks designated point
Contractor's Company Name
Contractor's Name
Contractor's Signature
Date
TS-107
Authorised: Jehad Ali
Date of Publication: 07 December 2012
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
Page 37 of 38
TS-107 - Overhead Line Design Standard for Transmission & Distribution Systems
APPENDIX F: Atmospheric Corrosion Maps of South Australia
APPENDIX G: DPTI’s Maps of High Load Corridor
Please Note:
TS-107
Appendix F and Appendix G are not included in this document
but can be found in a separate file on the SA Power Networks
intranet.
Authorised: Jehad Ali
Date of Publication: 07 December 2012
The use of this Technical Standard is subject to the conditions stated in SA Power Networks disclaimer in front of this document.
Page 38 of 38
WARNING: Printed copies of this document ARE DEEMED UNCONTROLLED. The most up-to-date version is located on the Intranet/Internet
Refer to a Separate Document for following TS-107- Appendix F & G