OTDS: Steel Poles

Overhead Transmission Distribution Systems

OTDS have supplied steel poles to the energy industry worldwide in a large range of applications.

Distribution Poles

Our ranges of distribution poles are used for low and medium voltage overhead lines.

We offer poles in different heights as per the design requirements and in voltages up to 33kV in single and double circuit categories.

These octagonal shaped poles are manufactured in a single section by press shaping sheet and subsequent longitudinal welding.

We supply poles hot dip galvanized in a bath of molten zinc in compliance with BS EN ISO 1461 or ASTM 123 or any other special coating required by the customer.

Transmission Monopoles

Our ranges of transmission monopoles - tapered, polygonal, octagonal and stepped - are available in different heights as per the design requirement and voltages up to 230kV in single and double circuit category.

OTDS's engineering section designs these monopoles, with the help of latest software, to ensure that users get the most convenient solution both technologically and economically.

Due to the material used, these poles are able to withstand exceptional conditions. These monopoles are excellent for setting up overhead transmission lines in towns and areas where space is restricted.

Strict quality control norms are set and observed at every stage of production process of these poles.

Some of our most commonly supplied poles are:

Transmission Poles,
Communication Poles,
Lighting Poles,
High Masts: Traffic Signal Poles, Flood Lighting.

A number advantages of Tubular Steel poles

Due to the surface curvature of tubular poles, wind loads acting on them are lower than those on other surfaces of the same protected areas.

The distribution of metal in the cross-section of tubular poles gives them the same strength in every direction. So long as the wires are intact the loads imposed on the poles, apart from the wind loads, are balanced. If the wires are broken, the poles on both sides of the break have to withstand the unbalanced pull of the wires. If of insufficient strength in the direction of the line the poles may collapse in succession, spreading the damage far beyond the original point of failure. Properly designed tubular steel poles subjected to such a condition will bend but not break under the load. An outward chain reaction from the point of failure would occur with the poles yielding to a lesser degree as the reaction progressed outwards. In Practice the reaction would be neutralised at about the fifth pole on each side of the break.

The smooth surface of tubular poles reduces to a minimum the liability to corrosion as compared with other conventional structural sections in which crevices abound.

In suitable ground the holes required for planting the poles need to be only slightly larger than the diameter of the poles. This is special significance in built up areas where extensive digging operations are undesirable. The fact that the foundations are in practically undisturbed ground also gives increased resistance to over turning.

We can supply the following types of Steel Poles,

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