Hanwha Solutions has successfully completed technology verification for 500 kilovolt (kV) extra-high-voltage alternating current (HVAC) cable materials in China and is moving to expand its product portfolio in extra-high-voltage cable materials.

Hanwha Solutions announced on the 16th that, in separate collaborations with Chinese extra-high-voltage cable manufacturers Qingdao Hanhe and TBEA, it has completed technology verification (Type Test) for cross-linked polyethylene (XLPE) insulation and semi-conductive material packages for 500kV HVAC cables.

The verification was led by TICW, a certification body affiliated with the Shanghai Electric Cable Research Institute (SECRI) in China. The tests assessed insulation performance, long-term reliability, and other requirements under extra-high-voltage transmission conditions.

Following its existing 400kV-class offerings, Hanwha Solutions has now secured technological reliability for extra-high-voltage cable materials up to the 500kV class. The company is currently pursuing KEMA certification with an internationally accredited institution. Based on this, it plans to expand material supply to the extra-high-voltage cable markets in Asia and other global regions.

Sales volumes of extra-high-voltage cable materials are also increasing. Hanwha Solutions projected that this year’s global sales volume of XLPE for super extra-high-voltage (SEHV) cables will nearly double compared with last year. In particular, in China, sales volume of extra-high-voltage materials, including 325kV-class SEHV XLPE, is expected to increase by about three times year-on-year.

Leveraging this latest verification, Hanwha Solutions plans to expand supply of cable materials used in power plants, transmission networks, and large-scale renewable energy projects, while diversifying its global customer base.

Carlo Scarlata, Head of the Wire & Cable division at Hanwha Solutions, said, “The successful technology verification of 500kV-class HVAC cable materials represents an important milestone that demonstrates we have secured global-level technological reliability in the field of extra-high-voltage transmission cable materials,” adding, “Based on this, we will continue to expand business opportunities in the extra-high-voltage cable market.”

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