Algeria SONELGAZ TOS SPA Glass Insulator Project
SONELGAZ - TOS SPA, the Algerian national electricity and gas utility group
What Happened
On June 12, 2025, Jiangxi Huayao Electric Co., Ltd. achieved a significant milestone by successfully winning the glass insulator project tendered by SONELGAZ-TOS SPA in Algeria, with a contract value of approximately 11 million US dollars. This landmark cooperation not only marks Huayao Electric’s in-depth penetration into the North African power infrastructure market but also testifies to its outstanding strength in the global electrical insulation industry.
SONELGAZ-TOS SPA (Sonelgaz Transmission and System Operator SPA) , a core subsidiary of Sonelgaz—the national electricity and gas group of Algeria—is the official operator and dispatcher of the country’s high-voltage transmission system. Tasked with the construction, operation, maintenance, scheduling and public bidding of transmission networks nationwide, it stands as a benchmark client in North Africa’s power infrastructure sector. Securing this bid has garnered widespread attention in China’s electrical porcelain industry, serving as a strong recognition of Jiangxi Huayao Electric’s advanced manufacturing capacity, strict quality control and reliable product performance.
Fully aware of the harsh desert conditions in Algeria, Jiangxi Huayao Electric Co., Ltd tailored high-performance glass insulators specifically for the local working environment. These customized products boast excellent high-temperature resistance, sand-dust resistance and anti-aging properties, enabling stable long-term operation under extreme conditions—including extreme dryness, intense sandstorms and strong UV radiation. By effectively reducing the risk of pollution flashover, the insulators provide a solid guarantee for the safe and stable operation of power grids in desert areas.
Transmission lines in the Sahara Desert are constantly challenged by harsh environmental factors: intense solar radiation, severe sand erosion, extremely dry air and drastic day-night temperature differences. Such conditions place extremely high demands on the weather resistance, anti-pollution performance and mechanical stability of insulators. Rising to the occasion, Jiangxi Huayao Electric Co., Ltd completed the full delivery of all products in just four months, demonstrating its efficient execution capabilities and winning high praise from SONELGAZ-TOS SPA for its professionalism and reliability.
Currently, the batch of glass insulators has been officially installed in relevant power projects in Algeria and is operating stably and excellently, further verifying the superior quality and adaptability of Huayao Electric’s products in harsh environments.
Looking ahead, Jiangxi Huayao Electric Co., Ltd. will adhere to its commitment to quality and innovation, continuing to provide high-performance insulation products and one-stop professional services to customers around the world. It will focus more on meeting the specific needs of desert transmission projects in North Africa and Algeria, contributing to the development of the global power infrastructure industry with professional strength and reliable products.
The glass insulators wonned in SONELGAZ-TOS SPA tender :
FOURNITURE DE ISOLATEURS EN VERRE TREMPE TYPE AERODYNAMIQUE POUR LIGNES 220 KV ET 60 KV NORME 16A
FOURNITURE DE ISOLATEURS EN VERRE TREMPE TYPE AERODYNAMIQUE POUR LIGNES 400 KV NORME 20 A
Notice of winning tender
Bill of ladding
Unloading site on destination in Algeria
Reported by Jiangxi Huayao Electric Co., Ltd.. Source announcement: company news.
Toughened Glass Suspension Types

PSD70E 70kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
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PSV160A 160kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
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PSV120B 120kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type
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PSD70E 70kN EMS Anti Fog Type Corrosion Proof Disc Insulator Glass Type Type TYPE
View specifications →Project Questions
Straight answers to the questions buyers ask before a first order.
Can Huayao supply against a utility tender specification?
Yes. The route is the same each time: confirm the type codes against the specification, issue drawings and type test reports, then produce and offer the goods for inspection.
Which test reports were available for this project?
Type test reports from Xi'an High Voltage Apparatus Research Institute Co., Ltd. and the National Ceramic Product Quality Inspection and Testing Center, plus the routine test record for the batch.
Do you receive customer visits?
Yes. Buyers regularly visit the plant in Luxi County to verify production before contract award.
Working On A Similar Tender?
Send the specification clause for the insulators and we will map it to type codes, creepage figures and test reports.


