INTRODUCTION
Trust Tower monopole masts have been in development since mid 2005. These climbable, robust and easy to install masts are suitable for a range of applications and locations from light duty meteorological works at sealevel to robust ice rated masts for wind energy assessments at 1000m and low deflection communication duty at 1000m altitude or above.
FEATURES OF TRUST TOWER MONOPOLES
The masts have the following features:
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Fully compliant to the wind loading standard AS/NZ 1170. Design wind speeds up to 70m/s.
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Masts can be climbed for construction purposes and maintained in wind speeds up to 13m/s and with a live load of 240kg at the top.
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Design life ranging from a 5 year design life for light duty at sealevel to 25 years for installation in the most difficult conditions in New Zealand.
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Guy materials options are: Kevlar, galv wire, plastic coated galv wire and SS wire.
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Suitable for being relocated any number of times.
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Ice ratings that exceed 70mm radial thickness for the Standard design. The ice ratings are well in excess of any tilt-up mast on the market.
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Masts ideal for long term wind farm reference duty.
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Producer statements can be provided for suitable locations.
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Masts can be installed by helicopter, crane or Tenergy's erection mechanism(still in development).
TRUST TOWER PRODUCT RANGE
The range of masts has been extended to include a communications style mast with very low deflections and excellent ice loading capability. In addition a coastal style has been developed to provide a more economical solution for low duty coastal sites. All the masts are available with a selection of guy materials to suit environment and design life requirements.
TENERGY has the capability to provide a monopole design for virtually any location, or practical design requirement. If you have a special need please contact Tenergy.
MAST HEIGHT / TYPE |
COMMUNICATIONS |
STANDARD |
COASTAL |
ATTRIBUTES | Very low deflections, extreme ice rating, heavy equipment capability | High ice rating, suitable for steep terrain, 1000m altitude, suits all IEC Class I sites | Suitable for use up to 500m altitude, nominal ice rating, suits IEC Class III , II and most Class I sites |
81m |
Design available |
Design available |
Design Available |
69m |
Available on request |
Design available |
Design Available |
60m |
Available on request |
Design available |
Design Available |
51m |
Available on request |
Design available |
Design Available |
39m |
Available on request |
Design available |
Design Available |
30m |
Available on request |
Design available |
Design Available |
MAST PACKAGES AND PRICES
The full range of masts are only available as complete packages installed on your site by TENERGY or a certified installer. Fully instrumented masts can be supplied according to whatever instrument specification you require. For supply of masts please contact TENERGY.
For the 69m and 81m masts TENERGY guarantee to meet or better the total installed cost for any other mast system (not including instruments) available in New Zealand. In addition any order for multiple masts will receive a discount. For firm quotes please provide details of location, access and soil conditions.
Masts are also available for lease but in this case collection and collation of wind data is also included. The lease agreement will include a maintenance and inspection programme for the installation.
FUTURE DEVELOPMENTS
Tenergy has a number of improvements and concepts in the pipeline as follows;
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Concept design has been done for a 100m climbable monopole. This will use the 3 guy system and will have a total of 6 anchor points, two per guy set. This will be suitable for IEC Class II and III wind farms sites in the coastal regions.
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Concept design has been done for free standing 21m and 30m masts--no guys used. This design will use a robust foundation and cost effective solutions to this are being worked on.
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The patented erection mechanism is undergoing an upgrade. This will improve the rate of installation and reduce the work load for the operator. See >>>>
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The mast system is ideal for supporting small turbines in the 2kw to 30kw range and this is under investigation.