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Masts and poles
This unique 200/240 Range of Steel Utility Pole is a patented oval shape for 11 to 66kV distribution
circuits. Offtake cables can be run inside the pole, reducing the cable theft problem.
The standard Eskom tested utility pole ranges
in height from 7 to 13m and allows different
configurations of phase carrier to be adopted.
• Environmental advantage in that
critical green plantations are
maintained.
• Controlled production process
resulting in consistent quality.
• Hot dip galvanized to SANS 121 (ISO
1461).
• No maintenance during life cycle, life
cycle advantages e.g. fire proof, rot
proof.
• Veld-fire damage limited.
• Much lighter pole (typically 1/5th of
wood) making for easier handling.
• Transport advantage gained through
lighter, consistently shaped pole.
• No on site drilling or cutting
required due to universal
preparation. No on site preparation.
• Earthing advantage by virtue of steel
material.
• More difficult to cut, hence giving
anti-theft advantage, enhancing
cable security.
• Universal hole set allows various
standard applications.
When compared with wooden poles the
above realizes a 6% life cycle cost saving
up to 25 years and up to 60% if the
wooden structures are replaced after 25
years
The universal transformer pole
The universal transformer pole is another
unique product offered by Structa. This
universal 8m pole with internal cable duct
and cable locks to ensure cable security. Its
advantages are:
• Cable security.
• Universal hole set allows various
standard applications.
• No on-site preparation.
• Life cycle advantages e.g. fire proof, rot
proof.
Manufacturing and quality
management
The Structa Technology product range is
backed by a superior manufacturing plant
with sufficient capacity to do large, rapid
roll-outs, as well as a design office
equipped with latest C.A.D and finite
element analysis software. The factory
based in Meyerton and is unique in Africa
in terms of equipment and processing
capability. It is housed in some 12 000m²
of covered area with comprehensive cranes
coverage.
Special capabilities include automated
lattice manufacturing, panel pressing and
bending of mast sectors in 12m lengths.
All long seam welds are performed with
automated submerged arc processes. A
quality system conforming to ISO 9001 is
in place and Structa products are hot dip
galvanized according to SANS standards.
Structa Technology has also implemented
a comprehensive Environmental Health
Management System in line with current
best practices.
4 Hot Dip Galvanizing Today Volume 9 Issue 2 2012