Power Poles
Australia’s leading manufacturer of quality pole products with representation in every state and territory.
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INGAL EPS is a division of Industrial Galvanizers Corporation Pty Ltd which is ultimately owned by Valmont Industries Inc. Actively involved in the Australian pole market since 1969, INGAL EPS has strived to continuously lead the industry in research, design, innovation, quality of product and quality of service. Establishing industry benchmarks such as the Seesaw pole, 60km/h and 110km/h Impact Absorbing poles and the largest steel poles ever installed in both Australia and New Zealand.
The company employs around 150 staff and has offices located in every state and territory of Australia and on the North Island of New Zealand. With manufacturing facilities in Brisbane and Perth and full access to three modern facilities in China owned by Valmont Industries Inc, INGAL EPS is well positioned to meet the broad requirements of the pole market. Due to our extensive experience, national coverage, resources and manufacturing capacity we have the ability to provide the most comprehensive product range available.
The INGAL EPS product range includes:
• Street Lighting poles
• Floodlighting poles
• Power poles
• Lowering Systems, for ease of maintenance
• Special Application poles including banner poles, camera poles, traffic signal and communication poles
• Services & Accessories providing individual design, drafting, installation and accessories including foundation materials, adaptors, headframes and cross arms.
With our dedicated design service, material control, quality assured manufacturing processes and after sales service, INGAL EPS has established itself as Australasia’s largest pole supplier. INGAL EPS has over four decades of experience leading the industry in Australia and our ever improving product range and expanded manufacturing resources will continue to ensure we’re at the cutting edge of providing new and innovative solutions to a growing and ever more demanding market.
Marlborough lines 33kV (66kV)
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Distribution and Sub Transmission PolesINGAL EPS Distribution and Sub Transmission Poles are the lightest poles available across the full range of length and tip loads. All of the standard range conforms to AS/NZS standards, ASCE/SEI 48-05 and to the ENA Pole Supply and Performance Specification. The length and tip loads of the standard range make INGAL EPS steel poles a direct replacement for the most common timber and concrete poles and with significant advantages.
Benefits• Lightest poles across the full range of length and tip loads• Conform to all relevant AS/NZS standards• Conform to ASCE/SEI 48-05• Conform to ENA Pole Supply and Performance Specification (separate documentation)• Non combustible with proven bush fire performance• Self bonding• Impervious to insects and rot• Fully recyclable with end of life salvage value• Standard poles comprise of,
- 12-sided pole shaft - Welded top cap - Mounting holes - Identification plate - Earth point above nominal ground line - Additional in-ground corrosion protection 200mm above and 400mm below nominal ground line - Anti sink strap - Hot dip galvanized finish.
Pole Shaft and Top CapThe poles shafts are manufactured from sheet steel that has a minimum tensile strength of 450MPa. The welded top cap is usually made from Grade 250 equivalent steel and is not a structural element of the pole. Shafts are all 12-sided to allow for lateral stability and ease of mounting cross arms and other hardware.
Mounting HolesUp to ten mounting holes are included in standard pricing (in a configuration to suit the customer) but more can be provided or the poles can be supplied without mounting holes. Drilling mounting holes at the time of dressing a pole is simple and carried out in very much the same way as a timber pole. When holes are drilled post galvanizing, we recommend the use of an organic zinc rich primer on the exposed surfaces prior to assembly.
Standard steel distribution poles could have 22mm through holes (two holes at the same level and at 180 degree apart), every 75mm down the pole with negligible affect on strength. In general, 22mm holes could be spaced closer at 50mm apart for groups of six to ten through holes without significantly affecting the design capacity of the overall pole.
Generally up to four to eight 22mm holes on adjacent flats of the pole could be placed at the same level if required. The section capacity at that level will be slightly lower but generally the overall pole design capacity should still be able to be achieved.
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Earth PointAn M12 steel nut is welded to the pole 200mm above the nominal ground line to serve as an earth point prior to hot dip galvanizing. A hole is drilled in the pole prior to attaching the nut to allow clearance for an M12 bolt.
Anti-Sink StrapAll distribution poles are provided with an anti-sink strap for across the bottom of the base section. For one piece poles the strap is welded on prior to hot dip galvanizing and for two piece poles it is provided loose with mounting bolts and the top section is transported inside the base section. In this case the holes are predrilled for the bolts provided and the strap is still hot dip galvanized.
Hot Dip GalvanizingAll hot dip galvanizing is carried out to conform to AS/NZS 4680.
Cross ArmsTimber, steel and composite cross arms can all be mounted to INGAL EPS steel poles in virtually the same manner as they are mounted to timber poles. No special brackets or cross arm modifications are required.
Transformer Mounting and Transition ArrangementsThe sufficiency of a steel pole to take a transformer is governed by the moment capacity of the steel section at and below the transformer mounting position and in any case the steel pole’s ability to carry moment is not inferior to equivalent timber or concrete products.
Similarly, you can treat INGAL EPS steel poles in the same manner for transition conductors as you would with a timber pole. The only difference need be the use of a drill bit suitable for drilling steel instead of timber.
Additional In-Ground Corrosion ProtectionHot dip galvanizing provides an excellent means of corrosion protection above ground and in many circumstances this is all that is required below ground when direct burying poles. However, in some areas soil conditions are such that additional in-ground protection is desirable to extend the life of the pole.
The simple theory behind additional in-ground corrosion protection is that by separating soil and oxygen from the metal, you therefore exclude oxidisation.
The experience of nearly the last 40 years and research into conditions and performance of products in other markets has led INGAL EPS to recommend three options for additional in-ground protection.
• Concrete encasing• Two-pack epoxy coating• Polyethylene wrap
Concrete encasing is a time proven performer for additional in-ground protection. Concrete encasing is not to be confused with foundation mounted poles as encasing is only required from just above the ground line to a depth of 400mm.
Two-pack epoxy coatings provide the same tough barrier between the pole and the soil with the additional benefit of being very resistant to line trimmers.
The benefits of polyethylene are that it is relatively inexpensive, is self adhesive and can be quickly repaired on site if there’s damage during transportation and handling on site. INGAL EPS recommends Coroplast polyethylene wraps. You can read more about Coroplast products at www.coroplast.de.
Additional in-ground protection should extend from about 200mm above ground (can be less for concrete encasing) to 400mm below ground. INGAL EPS has also carried out successful UV testing with the CSIro on the products we recommend, independent of the companies we buy them from.
Whether you choose one of our recommendations or specify based on your own preferences, INGAL EPS can apply it so it’s ready to go in the ground when it’s delivered.
Polyethylene wrap at the ground line Double circuit 33kV underslung 11kV
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Pole InstallationThe installation process is very much the same as for other pole types used by electrical utilities but if required installation instruction is available from INGAL EPS.
options and Accessories • De-Glare dull galvanising• Unlimited variations in the length, diameters, tip loads and
hole arrangements• Climbing rungs, stiles and ladders• Cross arms• other fabricated items as required
Pole Assembly and HandlingPoles with an overall length above 12.5m are supplied in multiple sections. These poles require joining (slipping) as per common street lighting poles. The pole slipping and handling process is quite simple and procedures are available. INGAL EPS staff can also be made available for initial on site instruction.
Note that although a measurement is used to check the pole has slipped properly, all slip joints are completed to a tonnage applied by a wire rope puller and not by a measurement. After assembly it is safe working practice to temporarily brace the sections together for a crane or helicopter lift.
11kV underslung 415V Cross arm arrangement Transformer mounting Transition arrangement
Product Codes – Distribution PolesDistribution Poles
9.5m 11.0m 12.5m 14.0m 15.5m 17.0m
DP095016 DP110016 DP125016 DP140016 DP155016 DP170016DP110024 DP125024 DP140024 DP155024 DP170024
DP=Distribution Pole 095=9.5m 16=16kn
Product Codes – Sub Transmission PolesSub Transmission Poles
18.5m 20.0m 22.0m 24.0m 26.0m 28.0m 30.0m 32.0m 34.0m
sTP185024 sTP200024 sTP220024 sTP240024 sTP260024 sTP280024 sTP300024 sTP320024 sTP340024sTP185040 sTP200040 sTP220040 sTP240040 sTP260040 sTP280040 sTP300040 sTP320040 sTP340040sTP185060 sTP200060 sTP220060 sTP240060 sTP260060 sTP280060 sTP300060 sTP320060 sTP340060sTP185080 sTP200080 sTP220080 sTP240080 sTP260080 sTP280080 sTP300080 sTP320080 sTP340080
sTP=sub Transmission Pole 185=18.5m 24=24kn
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Product Details – Distribution Poles
ProDuCT CoDe
Drawing no.
lengTh (m)
ulTiMaTe TiP loaD (kn)
weighT (kg)
Pole DiaMeTer (mm) nuMber of seCTions
noMinal in-grounD DePTh (m)ToP base
DP095016 ga2543 9.5 16 224 125 330 1 1.55DP110016 ga2544 11.0 16 279 125 362 1 1.70DP110024 ga2545 11.0 24 343 155 440 1 1.70DP125016 ga2546 12.5 16 338 125 395 1 1.85DP125024 ga2547 12.5 24 413 155 479 1 1.85DP140016 ga2548 14.0 16 429 135 413 2 2.00DP140024 ga2549 14.0 24 532 160 517 2 2.00DP155016 ga2550 15.5 16 496 135 444 2 2.15DP155024 ga2551 15.5 24 616 160 556 2 2.15DP170016 ga2552 17.0 16 568 135 475 2 2.30DP170024 ga2553 17.0 24 706 160 595 2 2.30
Product Details – Sub Transmission Poles
ProDuCT CoDe
Drawing no.
lengTh (m)
ulTiMaTe TiP loaD (kn)
weighT (kg)
Pole DiaMeTer (mm) nuMber of seCTions
noMinal in-grounD DePTh (m)ToP base
sTP185024 ga3162 18.5 24 838 180 639 2 2.45sTP185040 ga3163 18.5 40 1,236 255 708 2 2.45sTP185060 ga4474 18.5 60 1,696 310 774 2 2.6sTP185080 ga4469 18.5 80 2,045 380 826 2 2.8sTP200024 ga3164 20.0 24 941 180 677 2 2.6sTP200040 ga3165 20.0 40 1,379 255 746 2 2.6sTP200060 ga3166 20.0 60 1,863 310 813 2 2.8sTP200080 ga4468 20.0 80 2,278 380 864 2 3sTP220024 ga3167 22.0 24 1,102 180 727 2 2.8sTP220040 ga3168 22.0 40 1,598 255 796 2 2.8sTP220060 ga3169 22.0 60 2,147 310 864 2 3sTP220080 ga3170 22.0 80 2,606 380 913 2 3.2sTP240024 ga3171 24.0 24 1,316 180 769 3 3sTP240040 ga3172 24.0 40 1,898 255 835 3 3sTP240060 ga3173 24.0 60 2,546 310 902 3 3.2sTP240080 ga3174 24.0 80 3,109 380 948 3 3.4sTP260024 ga3175 26.0 24 1,670 180 819 3 3.2sTP260040 ga3176 26.0 40 2,125 255 885 3 3.2sTP260060 ga3177 26.0 60 2,840 310 954 3 3.4sTP260080 ga3178 26.0 80 3,467 380 997 3 3.6sTP280024 ga4482 28.0 24 1,845 180 870 3 3.4sTP280040 ga4478 28.0 40 2,417 255 935 3 3.4sTP280060 ga4473 28.0 60 3,218 310 1,006 3 3.6sTP280080 ga4467 28.0 80 3,924 380 1,047 3 3.8sTP300024 ga4481 30.0 24 2,080 180 920 3 3.6sTP300040 ga4477 30.0 40 2,878 255 985 3 3.6sTP300060 ga4472 30.0 60 3,546 310 1,057 3 3.8sTP300080 ga4466 30.0 80 4,319 380 1,097 3 4sTP320024 ga4480 32.0 24 2,329 180 971 3 3.8sTP320040 ga4476 32.0 40 3,198 255 1,036 3 3.8sTP320060 ga4471 32.0 60 3,889 310 1,109 3 4sTP320080 ga4465 32.0 80 4,733 380 1,147 3 4.2sTP340024 ga4479 34.0 24 2,733 180 1,010 4 4sTP340040 ga4475 34.0 40 3,600 255 1,074 4 4sTP340060 ga4470 34.0 60 4,707 310 1,147 4 4.2sTP340080 ga4459 34.0 80 5,436 380 1,181 4 4.4
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18.5m 20.0m 22.0m 24.0m 26.0m 34.0m32.0m30.0m28.0m18.5m 20.0m 22.0m 24.0m 26.0m 34.0m32.0m30.0m28.0m
24kn sub Transmission Poles 40kn sub Transmission Poles
22.0m 24.0m 26.0m 34.0m32.0m30.0m28.0m20.0m18.5m20.0m 22.0m 24.0m 26.0m 34.0m32.0m30.0m28.0m18.5m
60kn sub Transmission Poles 80kn sub Transmission Poles
16kn Distribution Poles 24kn Distribution Poles
TransPower Double CirCuiT 220kV
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Transmission PolesINGAL EPS individually engineers all Power Transmission poles to suit the specific requirements of each project.
Our design flexibility allows for unlimited options such as special cross arms, climbing systems, non-standard pole lengths and varying strength values.
Steel poles are an aesthetic alternative to traditional high voltage towers and offer far greater corrosion resilience due to the self cleaning nature of a tapered structure. Steel poles can be designed for use to be installed in lieu of towers without needing to compromise on height and span lengths and offer the advantages of a much smaller easement and greater public acceptance.
Longer spans enable line designers to minimise the use of structures and maximise spans to match the limits of the conductor being used. Spacing can be achieved without consideration of pole strength and INGAL EPS can design a pole to meet any loading requirement you have as the conductor will always be the limiting factor.
Because of the tapered design of our poles and the grade of material used in our designs, INGAL EPS steel poles are invariably the lightest pole structures available for any transmission line.
Benefits• Conform to all relevant AS/NZS standards (can be designed for US standards)• Poles can be designed up to 75m in height, and with ultimate tip loads of up to 900kN• Self bonding• Impervious to insects and rot• Non combustible with proven bush fire performance• Fully recyclable with end of life salvage value• Hot dip galvanized finish.
options and Accessories • Unlimited variations in lengths, diameters, tip loads, hole arrangements, pole hardware and accessories• Poles can be either base plate or in-ground mounted• Poles are typically 12 or 16 sided, but can be produced as tapered octagonal or tapered round.
substation structures
bass link 400kV DC
Powerlink Double Circuit 275kV Powerlink Double Circuit 110kV
Delta river Crossing structure 66kVwestern Power 132kV
wesTern Power 132kV
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>> sTreeT lighTing Poles >> flooDlighTing Poles >> Power Poles
>> lowering sysTeMs >> sPeCial aPPliCaTion Poles >> serViCes & aCCessories
To view our entire product range, or for the most up to date product information, please visit our comprehensive on-line catalogue at www.ingaleps.com.au
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