Peru: 2022 Trends in the Cable Sector: High Capacity, Underground and Energy Efficiency

ZMS Submarine Cables

Top ABC Cable Companies

GIL System

ZMS points out that the trends in 2022 of the electrical cable sector are high capacity, underground use and energy savings.

LIMA, PERU, August 7, 2022 /EINPresswire.com/ -- The cable sector is the foundation for the smooth functioning of modern economies and societies. This report focuses on the 10kV and above cable sector, noting that the trends in the electrical cable sector are high capacity, underground use and energy savings.

Cables of 10kV and above are mainly used in

the field of power generation, transmission and distribution. They serve mainly in some large industrial and commercial buildings. From a technical point of view, cables of 10 kV and above are currently available mainly in the form of overhead lines, underground cables and GIL (gas-insulated transmission lines).

These three transmission methods are expected to remain the main way to build larger-scale power grids.

1. New conductors help increase the transmission capacity of overhead lines.

The aerial transmission solution is mainly based on air insulation. Therefore, it has a low cost, a large occupation of space and a large capacity. With the acceleration of the construction of new power systems, the overall demand for the system's power transmission capacity is expected to increase rapidly.

Recently, MarketsandResearch.biz published the "Global Aerial Cable Market Grouped by Manufacturers, Regions, Types, and Applications Forecast 2022-2028." The report forecasts a steady growth of overhead cables until 2028 for the main companies in the cable sector (Nexans France, ZMS Cable Company, EMTA Conductors and Cables, etc.).

The future development trend of airlines will be towards high capacity. New projects can be built with more energy-efficient conductors and existing projects can be retrofitted with additional capacity.

(1) Energy-efficient conductors are suitable for new projects to reduce transmission losses.

Conventional overhead line cables are made of aluminum with steel core. The conductive part is mainly hard aluminum with a conductivity of 61% of IACS. And the part that supports the load is mainly a steel core with a conductivity of only 9% of IACS. To improve the overall conductivity of the conductor and reduce losses, it is necessary to increase the conductivity of the braided aluminum outer section or use a load core with higher conductivity.

The braided outer section can be made of high conductivity hard aluminum alloy (61.5% - 63% IACS) or soft aluminum (63% IACS). For the load core, a high-strength aluminum alloy core (52%-55% IACS) can be used instead of steel. Thus, overhead cables with higher electrical conductivity and also excellent tensile strength can be produced.

(2) Capacity increase conductors are suitable for already complete projects.

In theory, there are two main methods for adding capacity to existing lines. One way is to replace the driver with an air driveror larger section. Another way is to replace the driver with a driver with increased capacity.

Increasing the cross-section of the cable would considerably increase the total weight of the overhead conductors. Therefore, new towers would have to be rebuilt. This method involves a high investment and a long construction period.

The use of conductors with additional capacity allows to increase the capacity without adding too much to the total weight of the overhead cables. It has the advantage of the absence of replacement of the tower, the total investment is low, and the construction time is short. With these new types of conductors, capacity increases of between 30% and 150% capacity are usually achieved, which makes them a very profitable option.

In short, aluminum alloy cores, soft aluminum types and carbon fiber composite cores, as well as other new aerial conductors, will be an important development direction for airlines in the future.

2. Urban development and offshore wind promote the rapid development of the cable sector.

Despite the excellent cost-effectiveness of overhead cables, new urban transmission and distribution lines are increasingly being built with underground cables for reasons of space, environmental protection and operational safety. In addition, existing urban overhead lines will increasingly become underground cables.

As for submarine cables, it must be seen that offshore wind, as an important part of the future generation of new energy, is growing at a rapid pace. Submarine cables not only benefit from the growth of installed offshore wind capacity, but also from the growth of the distance from offshore wind. In the context of the global energy revolution, submarine cables are expected to begin a golden period of development as a preferred solution for interconnecting the transoceanic energy supply.

3. Very large capacity transmission: GIL

systems GIL transmission systems mainly consist of a grounded aluminum alloy housing and an internal aluminum tubular conductor, insulated by a gas such as SF6.

GIL lines have lower transmission losses, lower capacitance effects and higher capacity than cables. Their high transmission capacity (up to 3,000 MVA for a single circuit at 550 kV) allows them to be connected directly to overhead lines.

Gil is the preferred choice for high-capacity transmission systems over short distances compared to large-section cables that require air or water cooling.

Analyzing

the different modes of energy transport, ZMS determines that the future direction of cable development will be high-capacity, underground and energy efficient. The evolution of technology has led to a number of new changes in the cable industry, which will lead to many investment opportunities.