Local politicians, for example, may support a power
transmission line
on economic grounds, i.e., to boost energy-intensive industries that will create more jobs and increase local incomes. In other situations where the affected areas promise smaller immediate economic benefits, they may side with the local citizens who are concerned about the visual impact of overhead lines, risks to public health and the risk of property values.
LOGISTICS & CONSTRUCTION The Malaysian government requires materials for the construction of transmission line such as lower leg members and plates to be sourced locally; with exception made only for components that are not available in the country. However, local manufacturers have not always been able to meet the demand for fabricated steel tower components, and this has impacted project effectiveness from time to time.
Another challenge in the construction process is the transport of heavy
The local manufacturers have not always been able to meet the demand for fabricated steel tower components, and this has impacted project effectiveness from time to time.
equipment and materials across swamps and mountainous areas, which requires both land and air transport and
is prone to mishandling and
damage. Also, strategic locations need to be determined for the concrete mixing batching plants, along with the workers’ settlement. Then, scheduling must be calculated precisely so that the concrete quality delivered from the plants to the tower locations is in an ideal condition for filling.
For the structural components, corrosion is a subtle but hazardous problem and can either be from the atmosphere, water or soil. The damage could cause the project life cycle to be greatly
shortened; and due to the subtlety, it usually goes undetected until it is too late, at times leading to major safety accidents. Research on environment law and material selection, as well as the provision of anticorrosion scheme will reduce such risks.
When it comes to the tower superstructure, natural causes such as earthquake can be a threat too. Even though Malaysia is considered as a low seismic area, it sits on the Ring of Fire and so volcanic activities with mild seismic impacts may occasionally happen and displace transmission towers. Therefore, the transmission network needs to be designed in a way that can survive
A transit mix truck for delivering concrete to tower locations gets loaded at a portable batch plant
Image by
Shutterstock.com/Richard Thornton
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