All our poles comply in all respects with the South African Bureau of Standards (SABS) specifications 754:1994. We are however flexible and can accommodate other specifications requirements (local or foreign) as we are focused a customer satisfaction and of our products and services
ORIGIN
AND SPECIES.
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:
Eucalyptus: cloeziana, grandis (saligna), grandis/saligina hybrids, maculata, maideni, microcorys paniculata and 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).


FREEDOM
AND DEFECTS.
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.