Treated wooden poles for rural electrification, telephone networks

We have been supplying wooden poles for more than 20 years. Today, you can benefit from our experience to assist you in sourcing the best product for your application.

Thanks to our different partners in South Africa, we can produce and supply approximately 50,000 poles of various lengths and diameters per month.


Certification

Certificates: ISO 9001:2000, SABS 754: 1994
All our plants are certified to ISO 9001:2000.

Copies of the certificates are available on request.


Capacity of treatment

Our total capacity from our treatment stations in Lows Creek near Nelspruit and Tzaneen in South Africa is about 50000 poles per month, spread across different sizes.
Our producers keep a fleet of well maintained trucks to guarantee “Just in Time” deliveries for your projects.
Most of our export contracts included transport to the harbour and coordination of seafreight and road transport to the final destination.
From Mauritania to the Comores, our poles are installed across the entire African continent.


Technical specifications

All our poles are treated according and comply to the South African Bureau of Standards (SABS) 754:1994 specification. All our plants are in conformity with SABS 754. Herewith a brief description of the SABS standards:

Origin and species of the trees

All our wooden poles are currently of South African origin. The following species are found in South Africa and used for transmission, telecommunications and agricultural applications:

  • Cloeziana,
  • Grandis (Saligna),
  • Grandis/Saligna Hybrids,
  • Maculata,
  • Maideni,
  • Microcorys paniculata et Saligna.

Strength

All transmission and telephone poles are tested according to the South African Bureau of Standards (SABS) specification SABS 754:1994 to withstand a fibre stress (in bending) of 55 Mpa (or 75 MPa so if required).

Defect-free

The maximum permissible defects are also defined by the SABS 745:1994 and include defects such as : Sapwood, Decay, Gum Veins, Gum Pockets, Insect Damage, Ring Shakes, Spirality, Spiral Grain, Post-Treatment Defects, Mechanical Damage, Crook and Sweep and Taper.

Preservative treatment

The SABS 745:1994 standard address the following aspects: moisture content, the process, the preservative, retention and penetration of the preservative.

  • The average moisture content may not exceed 25% and in the individual pole exceed 28% at the time of treatment.
  • The preservative may be Creosote that complies with the SABS specifications.
  • Retention of creosote is a minimum of 115kg/m³ for Eucalyptus species.
  • The minimum depth of solid penetration depends on the hazard class and is 15mm for poles in direct contact with the ground.

In practice, the retention and penetration values are considerably higher.

Inspections, methods of testing and marking

These methods and procedure are clearly outlined in the SABS 754:1994. Information such as the treating plant, last two digits of the year, hazard class, strength class, length and size, kiln / air dry and unique pole number indicated on every pole. Additional customized information can also be included in the marking.