Import Corona Proof Ring — Buy in Bulk from Supplier in China

The Corona Proof Ring supplied by Guangdong Henvcon Electric Power Technolohgy Co.,Ltd. is a metal down‑lead clamp designed for ADSS cable systems operating above 220 kV. It forms an annular barrier that mitigates corona discharge at the terminal ends of pre‑formed armor rods. The product is marketed as a metal corona ring and conforms to ISO 9001 quality management. According to the supplier, a production run of 10 000 sets can be completed within roughly two weeks.

The ring is fabricated from conductive metal, typically aluminium alloy such as 6061‑T6, which offers a balance of strength and corrosion resistance. In the high‑voltage sector, standard outer diameters range from 250 mm to 350 mm and weight averages around 5 kg per unit. Surface treatment is commonly anodised to improve durability in outdoor environments. These typical characteristics align with the supplier’s claim of easy installation and customisable dimensions.

Utility companies and transmission line contractors use the ring to extend cable life by lowering electric field intensity and preventing erosion. The supplier offers packaging in cartons or wooden cases according to customer requirements and accepts payment by T/T. Buyers should confirm the exact material grade, dimensional tolerances and any required certifications before placing an order. Lead‑time and minimum order quantities are not disclosed in the public data and must be verified with the supplier.

Guangdong Henvcon Electric Power Technolohgy Co.,Ltd. is located in Dongguan, Guangdong Province, China (postal code 523520). The company is listed under the harbour trust tier, indicating a basic level of verification on the platform. Its registered address includes Qiaotou Town and the business focuses on electric power equipment such as metal corona rings.

The supplier reports the capability to produce large volumes with short production cycles and offers customisation of the corona proof ring to meet specific project requirements. It states compliance with ISO 9001 standards, although no additional certifications are mentioned. The public profile shows a response rate of 0 % and no recent response time data, so prospective buyers should request current communication performance directly.