Properly treated your transmission and telecommunication poles can last a lifetime...
SHI is the leading producer of transmissions poles in Tanzania. The poles are sourced from nearby government forest as well as from projects operated by mother company Green Resources Limited. Two onsite state of the art high capacity treatment plants ensure that the poles are properly chemically treated, guaranteeing them a long life. Our poles are treated with Tanalith C (CCA), made to satisfy Tanesco specifications and come in an assortment of lengths.
TanaPole - Pressure treated power and utility poles
Throughout the world, timber poles have been successfully utilised as an adaptable, cost effective and durable product in the power and utility industries. The service life of these poles can be extended by effective preservative treatment to protect the timber against the threat of fungal decay or insect attack. The treatment industry has traditionally had a choice between chromated copper arsenate (CCA) based preservatives and creosote.
Over the years, Tanalith® treated poles have been subjected to every soil and environmental condition imaginable. The results are well-proven in terms of long service life, reliability, cost, cleanliness and safety, and their unique position as a renewable resource. Tanalith® treatment also provides excellent resistance to oxidation, corrosion, fatigue and spalling, making Tana®-Pole the number one choice in Africa.
Benefits of Tanalith® treated poles
-Treated with the most effective waterborne wood preservatives ever developed.
-Complete protection against all wood destroying organisms - including termites.
-Odorless, non-tainting, non-flammable product that is fully compatible with other materials.
-Economical solution for power and utility requirements.
-Anticipated service life up to 30 years.
-Treated poles are safe to humans, animals and plants.
-When impregnated into the timber, the chemical components of Tanalith® preservative bond within the wood structure and cannot easily be removed, minimising any ground pollution.
-Poles with a high moisture content treated with Tanalith® are easier to impregnate than with creosote.
-Because there is virtually no migration of preservative, remedial ground line treatment is not necessary with ageing Tanalith® treated utility poles.
-Pole strength - full-scale testing has shown that Tanalith® treated poles meet all specifications required.
-Cleanliness - Tanalith® treated utility poles are clean and safe to handle.
- 1933 - CCA introduced as the first clean, easy to handle preservative as an alternative to creosote.
- 1940 - 18,000 poles for telecommunications were treated with CCA in USA. This was the first large scale use by the utility industry.
- 1945 - Field tests on CCA treated stakes were started in a forest site in Mississippi, USA. Pine stakes have an average life of 1.8 - 3.6 years when untreated.
- 1949 - Additional CCA stakes were treated and installed at the same site.
- 1968 - US Dept of Agriculture and other professional bodies sponsor the development for improvement of CCA in construction applications such as foundation poles.
- 1982 - Tanalith® CCA treated wood in USA is warranted for 30 years against termite and decay damage in residential structures.
- 1983 - No failures reported from the 1945 field test stakes. 34 year service life is proven. Retention levels still conform to present specifications.
- 2002 – CCA preservatives in USA and Europe became restricted in their use. New generation preservatives such as Tanalith® E are now providing continued assurance to users of treated timber.
- 2006 – Supply of CCA is banned in the EU as from 1st September 2006. Chrome and arsenic both classified as very toxic and severe marine pollutants.
In Africa Tanalith® preservative has been supplied for pole treatment since 1950 and is now the number one choice. Over the past 50 years Tanalith® treated poles throughout the world have been subjected to every soil and environmental condition imaginable.
The results prove a long service life of up to 30 years giving a durable, clean, cost effective and safe solution for power and utility poles.
